Alicyclic Ring Containing Patents (Class 568/329)
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Patent number: 5146001Abstract: In the preparation of benzyl ketones of the formula ##STR1## a benzyl chloride of the formula ##STR2## is reacted with an acid chloride of the formulaR.sup.6 --CO--Cl (III)a) in a first stage with an excess of zinc powder in the presence of a diluent at a temperature between 80.degree. C. and 200.degree. C. under an inert gas atmosphere, and separating off the excess zinc powder, thereby to obtain a benzyl derivative of the formula ##STR3## and b) in a second stage reacting the benzyl derivative of the formual (IV) with an acid chloride of the formula (III) in the presence of a palladium catalyst and in the presence of a diluent at a temperature between 0.degree. C. and 150.degree. C. under an inert gas atmosphere.Type: GrantFiled: June 3, 1991Date of Patent: September 8, 1992Assignee: Bayer AktiengesellschaftInventors: Thomas Himmler, Udo Kraatz, Wolfgang Kramer, Klaus Stroech
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Patent number: 5131945Abstract: Compounds of formula I ##STR1## are useful as herbicides, effective against dicotyledonous weeds.Type: GrantFiled: July 13, 1990Date of Patent: July 21, 1992Assignee: Shell Research LimitedInventors: Hans-Joachim Bissinger, Ludwig Schoeder, Helmut Baltruschat, Manfred Garrecht, Erich Raddatz, Wolfgang Fruhstorfer
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Patent number: 5118856Abstract: A process for the preparation of cyclohexanedione derivatives of the general formula I ##STR1## where R.sup.1 is C.sub.2 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkenyl, C.sub.3 -C.sub.12 -cycloalkyl, C.sub.5 -C.sub.12 -cycloalkyl with 0-4 olefinically unsaturated bonds, C.sub.2 -C.sub.8 -alkylthioalkyl, C.sub.6 -C.sub.12 -bicycloalkyl with 0-3 olefinically unsaturated bonds, unsubstituted or substituted aryl or hetaryl, or a heterocyclic radical of 4 to 7 atoms of which not more than 3 may be hetero-atoms chosen from O, S and N, the radical being saturated or olefinically unsaturated, by reacting an .alpha.,.beta.-unsaturated ketone (II) with a dialkyl malonate in the presence of a base to give the alkoxycarbonylcyclohexenolone or its salt (III) ##STR2## and acylation, hydrolysis and decarboxylation of (III), wherein the .alpha.,.beta.Type: GrantFiled: August 2, 1990Date of Patent: June 2, 1992Assignee: BASF AktiengesellschaftInventors: Gernot Reissenweber, Winfried Richarz
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Patent number: 5114461Abstract: A 2-benzoylcyclic-1,3-dione derivative of the formula: ##STR1## wherein X represents methylene, oxygen, sulphur or --NR.sup.4 --, Y represents --C(R.sup.5) (R.sup.6)-- or oxygen, R.sup.1 represents hydrogen or alkyl optionally substituted by halogen or represents cycloalkyl, R.sup.2 represents hydrogen or R.sup.7 or R.sup.1 and R.sup.2 together represent alkylene, R.sup.3 represents halogen, hydroxy, carboxy, nitro, cyano or amino or carbamoyl (which may be substituted by one or two alkyl groups), alkoxycarbonyl, alkanoyl, or alkanoylamino, R, RO, RS, RSO or RSO.sub.2 in which R represents alkyl optionally substituted by halogen, R.sup.4 represents hydrogen or alkyl or alkoxycarbonyl, R.sup.5 represents hydrogen or alkyl or alkoxycarbonyl, R.sup.6 represents hydrogen or alkyl, R.sup.7 represents alkyl which may be substituted by halogen or alkylthio or by a group (R.sup.8).sub.n -phenyl-S-, or represents cycloalkyl or tetrahydrothiapyran-3-yl or represents a group (R.sup.8).sub.n -phenyl- in which R.sup.Type: GrantFiled: November 22, 1989Date of Patent: May 19, 1992Assignee: May & Baker LimitedInventors: Neil J. Geach, James Gilmour, Leslie R. Hatton, Philip H. G. Smith
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Patent number: 5110343Abstract: The invention relates to a herbicidal composition having an inert carrier and an effective amount of a compound having the formula ##STR1## wherein X is the same or different substituent selected from the group consisting of halogen, nitro, C.sub.1-6 alkyl, halo C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.1-6 alkylthio and C.sub.1-6 alkylsulfonyl;n is 1, 2, 3 or 4;R.sup.1 is C.sub.1-6 alkyl which is substituted by cyano, halogen, hydroxy, C.sub.1-6 alkoxy, C.sub.1-6 alkylthio, C.sub.1-6 alkylsulfonyl or tetrahydropyranyloxy; C.sub.1-6 alkylthio, phenylthio, pyridyl or tetrahydropyranyl;R.sup.2 is C.sub.1-6 alkyl;l is 0, 1 or 2.Type: GrantFiled: May 24, 1990Date of Patent: May 5, 1992Assignee: Nippon Soda Co., Ltd.Inventors: Akiyoshi Ueda, Haruhito Ohishi, Toshio Aihara, Hisao Ishikawa, Kazuyuki Tomida, Hideo Hosaka
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Patent number: 5092919Abstract: Herbicidal compounds of the structural formula ##STR1## wherein R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sub.4 is hydroxy, hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.3 and R.sup.4 together are carbonyl (.dbd.O) with the proviso that R.sup.1, R.sup.2, R.sup.5 and R.sup.6 are C.sub.1 -C.sub.4 alkyl; R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.6 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylthio, or C.sub.1 -C.sub.4 alkylsulfonyl, with the proviso that when R.sup.6 is C.sub.1 -C.sub.4 alkylthio or C.sub.1 -C.sub.4 alkylsulfonyl, the R.sub.3 and R.sup.4 are not together carbonyl; R.sup.7 is methyl or ethyl; and R.sup.8 is (1) halogen; (2) nitro; or (3) R.sup.b SO.sub.n -- wherein n is the integer 0 or 2, and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; and its salts.Type: GrantFiled: January 15, 1991Date of Patent: March 3, 1992Assignee: Imperial Chemical Industries plcInventor: Nhan H. Nguyen
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Patent number: 5089635Abstract: 13-alkyl-11.beta.-phenyl-gonanes of general formula I ##STR1## wherein A and B together stand for an oxygen atom, a CH.sub.2 group or a second bond between carbon atoms 9 and 10,X is an oxygen atom or the hydroxyimino grouping N.about.OH,R.sub.1 is a straight-chained or branched, saturated or unsaturated alkyl radical with up to 8 carbon atoms, which contains the grouping ##STR2## with X as described above, R.sub.2 is a methyl or ethyl radical in the .alpha. or .beta. position,R.sub.9, R.sub.10, R.sub.11 and R.sub.12 each stand for a hydrogen atom, a hydroxy, alkyl, alkoxy or acyloxy group with 1 to 4 carbon atoms respectively or a halogen atom and R.sub.3 and R.sub.4 have a variety of meanings, have antigestagenic and antiglucocorticoid effects.Type: GrantFiled: February 7, 1986Date of Patent: February 18, 1992Assignee: Schering AktiengesellschaftInventors: Gunter Neef, Sybille Beier, Walter Elger, David Henderson, Eckard Otto, Ralph Rohde
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Patent number: 5085688Abstract: Herbicidal compounds of the formula ##STR1## wherein R.sub.3 is methoxy or ethoxy; andR.sub.4 is bromine, methylsulfonyl or ethylsulfonyland their salts.Type: GrantFiled: November 1, 1990Date of Patent: February 4, 1992Assignee: ICI Americas Inc.Inventors: William J. Michaely, Gary W. Kraatz
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Patent number: 5081308Abstract: Sunscreen compositions are described which contain certain bis-1,3-diketone derivatives of cyclohexane when incorporated in a carrier in amounts ranging from 0.1-50% by weight.Type: GrantFiled: December 15, 1988Date of Patent: January 14, 1992Assignee: ICI Americas Inc.Inventor: Donald J. Gosciniak
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Patent number: 5041616Abstract: Disclosed is a process for the preparation of alkyl aryl ketones, cycloalkyl aryl ketones and diaryl ketones by contacting an aromatic compound with an aliphatic, cycloaliphatic or aromatic carboxylic acid in the presence of a catalytic amount of an organic sulfonic acid while removing the water of reaction as an azeotrope from the reaction mixture.Type: GrantFiled: August 29, 1990Date of Patent: August 20, 1991Assignee: Eastman Kodak CompanyInventor: Charles E. Sumner, Jr.
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Patent number: 5025036Abstract: The invention relates to catechol carboxylic acid derivatives of the formula ##STR1## wherein, R.sub.1 is ##STR2## acetyl, hydrogen, hydroxy or alkanoyloxy, R.sub.2 is ##STR3## hydroxy, hydrogen or alkanoyloxy, wherein R is hydrogen, lower alkyl or --(CH.sub.2).sub.n --N--(lower alkyl).sub.2,R.sub.3 is hydrogen, lower alkyl or amino,R.sub.4 is hydrogen, lower alkyl, halogen or aminoA is ##STR4## wherein, R.sub.5 is hydrogen or acyl, R.sub.6 is hydrogen, halogen, lower alkyl, aryl or cycloalkyl, and R.sub.7 and R.sub.8, independently, are hydrogen, lower alkyl or halogen, orA is ##STR5## wherein, R.sub.5 is hydrogen or acyl, R.sub.9 is hydrogen, lower alkyl, R.sub.10 is hydrogen, lower alkyl or halogen, R.sub.11 is hydrogen, lower alkyl, cycloalkyl or halogen, m is 0 or 1, n is an integer of 2-10, provided, that no more than one of R.sub.1 or R.sub.2 can be hydroxy, alkanoyloxy or ##STR6## and when R is hydrogen, salts thereof with pharmaceutically acceptable bases or when R is --(CH.sub.2).sub.Type: GrantFiled: May 3, 1989Date of Patent: June 18, 1991Assignee: Hoffmann-La Roche Inc.Inventors: Matthew Carson, Ru-Jen L. Han, Ronald A. LeMahieu
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Patent number: 5021602Abstract: Novel compounds have at least one perfluorocyclobutane ring and at least two functional groups suitable for forming condensation polymers. Preferably the compounds have a structures represented by Formula II: ##STR1## wherein R and R' independently represent optionally inertly substituted groups; X and X' represent any molecular structures which link R and R' with the perfluorocyclobutane ring; n and n' are the number of G and G' groups, respectively; and G and G' independently represent any reactive functional groups or any groups convertible into reactive functional groups. The compound are preferably prepared by a process of thermally dimerizing trifluorovinyl compound to form a compounds of Formula IG.sub.n --R--X--CF.dbd.CF.sub.2wherein G represents G or G' in Formula II; X represents X or X' of Formual II; and n represents n or n' of Formula II, to form a compound having a perfluorocyclobutane group.Type: GrantFiled: June 9, 1989Date of Patent: June 4, 1991Assignee: The Dow Chemical CompanyInventors: Katherine S. Clement, David A. Babb, Bobby R. Ezzell
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Patent number: 5006158Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or ##STR2## wherein R.sup.a is C.sub.1 -C.sub.4 alkyl; R.sup.1 and R.sup.2 together are alkylene having 3 to 6 carbon atoms; R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.6 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.7 is hydrogen or 3-C.sub.1 -C.sub.4 alkoxy; and R.sup.8 is (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) OCF.sub.3 ; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n -- wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) --NR.sup.c R.sup.d wherein R.sup.c and R.sup.d independently are hydrogen or C.sub.1 -C.sub.4 alkyl; (11) R.sup.e C(O)-- wherein R.sup.e is C.sub.1 -C.sub.Type: GrantFiled: February 23, 1988Date of Patent: April 9, 1991Assignee: ICI Americas Inc.Inventors: Charles G. Carter, David L. Lee, William J. Michaely, Gary W. Kraatz
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Patent number: 4973767Abstract: The invention provides a process for the preparation of a compound of the general formula (I): ##STR1## wherein X, Y and R.sup.1 to R.sup.7 are as defined. In the process, the olefinic analog of the compound of general formula (I) is treated with a halogen-bearing compound in the presence of metallic zinc.Type: GrantFiled: December 12, 1988Date of Patent: November 27, 1990Assignee: Sandoz Ltd.Inventors: Patrick J. Crowley, Christopher J. Urch, Paul A. Worthington
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Patent number: 4957538Abstract: Herbicidal compounds of the structural formula ##STR1## wherein X is oxygen or sulfur; R is chlorine or bromine; R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.4 is hydroxy, hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.3 and R.sup.4 together are carbonyl (.dbd.0) with the proviso that R.sup.1 , R.sup.2, R.sup.5 and R.sup.6 are all C.sub.1 -C.sub.4 alkyl; R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.6 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylthio, or C.sub.1 -C.sub.4 alkylsulfonyl, with the proviso that when R.sup.6 is C.sub.1 -C.sub.4 alkylthio or C.sub.1 -C.sub.4 alkylsulfonyl, then R.sup.3 and R.sup.4 are not together carbonyl; R.sup.7 is methyl or ethyl; and R.sup.8 is (1) halogen; (2) nitro; or (3) R.sup. b SO.sub.n --wherein n is the integer 0 or 2; and R.sup.b is (a) C.sub.1 -C.sub.3 alkyl; and their salts.Type: GrantFiled: November 18, 1988Date of Patent: September 18, 1990Assignee: ICI Americas Inc.Inventor: William J. Michaely
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Patent number: 4954165Abstract: An herbicidally effective benzoyl derivative having the formula: ##STR1## wherein X.sub.1 is C.sub.1 -C.sub.4 alkoxy or halogen;X.sub.4 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen;X.sub.5 is hydrogen or fluorine;Y.sub.1, Y.sub.2, Y.sub.3, Y.sub.4 and Y.sub.5 are independently hydrogen or C.sub.1 -C.sub.4 alkyl;R.sub.1 is C.sub.1 -C.sub.4 alkyl;R.sub.4 is C.sub.1 -C.sub.3 alkyl;n is an integer of 0, 1 or 2 is discosed.In addition, the herbicidally effective benzoyl derivative having the formula: ##STR2## wherein: X.sub.1 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy halogen;X.sub.4 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen;X.sub.5 is hydrogen or fluorine;Y.sub.1, Y.sub.2, Y.sub.3, Y.sub.4 and Y.sub.5 are independently hydrogen or C.sub.1 -C.sub.4 alkyl;R.sub.1 is C.sub.1 -C.sub.4 alkyl;R.sub.4 is C.sub.1 -C.sub.3 alkyl;n is an integer of 0, 1 or 2;L is C.sub.1 -C.sub.4 alkylene is disclosed.Type: GrantFiled: October 18, 1988Date of Patent: September 4, 1990Assignee: Nissan Chemical Industries Ltd.Inventors: Masatoshi Baba, Takuya Kakuta, Norio Tanaka, Eiichi Oya, Takashi Ikai, Tsutomu Nawamaki, Shigeomi Watanabe, Koichi Suzuki
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Patent number: 4946981Abstract: Compounds of the formula ##STR1## wherein R is halogen, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, cyano, nitro, S(O).sub.n R wherein R is C.sub.1 -C.sub.4 alkyl and n is the integer 0, 1 or 2; and R.sup.2 through R.sup.8 are hydrogen or certain substituents, their salts, herbicidal compositions containing the compound or salts and the herbicidal use thereof.Type: GrantFiled: June 27, 1988Date of Patent: August 7, 1990Assignee: ICI Americas Inc.Inventors: Charles G. Carter, David L. Lee, William J. Michaely, Gary W. Kraatz
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Patent number: 4943384Abstract: Cyclohexane derivatives of the formula IR.sup.1 --A.sup.1 --Z.sup.1 --A.sup.2 --R.sup.2 IwhereinR.sup.1 and R.sup.2 are each H or an alkyl group which has 1-10 C atoms and in which one or two non-adjacent CH.sub.2 groups can also be replaced by 0 atoms and/or --CO-groups, and/or --CO--O-- groups and/or --CH.dbd.CH-- groups, or are F, Cl, Br, CN or R.sup.3 --A.sup.3 --Z.sup.2 --,A.sup.1 is --A--, A.sup.4 --Z.sup.o --A-- or --A--Z.sup.o --A.sup.4 --,A is a trans-1,4-cyclohexylene or 1,4-cyclohexenylene group which is unsubstituted or is monosubstituted or polysubstituted in the 2-, 3-, 5- and/or 6-position by F and/or Cl and/or Br and/or CN and/or an alkyl group or a fluorinated alkyl group each of which has 1-10 C atoms and in which one or two non-adjacent CH.sub.2 groups can also be replaced by 0 atoms and/or --CO-- groups and/or --CO--O-- groups, which trans-1,4-cyclohexylene or 1,4-cyclohexenylene group can optionally also be substituted in the 1-position and/or 4-position and one or two CH.sub.Type: GrantFiled: November 21, 1986Date of Patent: July 24, 1990Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Wolfgang Sucrow, Herbert Wolter, Rudolf Eidenschink
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Patent number: 4921994Abstract: Compounds having the formula ##STR1## R.sub.1 is hydrogen, benzyl or an ester moiety; Y is --CH(R.sub.2 ")CH(R.sub.2)-- or --CH(R.sub.3)CH.sub.2 --;R.sub.2 " is hydrogen or methyl;R.sub.2 is OH or X-substituted (C.sub.1-16) alkyl;R.sub.3 is OH, cyano or X-substituted (C.sub.1-3) alkyl;X is --OR.sub.6, --SR.sub.6, --S(O)R.sub.6, --S(O).sub.2 R.sub.6, --NR.sub.6 R.sub.7, --COOR.sub.7, --CONR.sub.7 R.sub.8 or oxo;with the proviso that when X is --NR.sub.6 R.sub.7, --COOR.sub.7 or --CONR.sub.7 R.sub.8, said group is located on the terminal carbon atom of R.sub.2 or R.sub.3 ;R.sub.6 is hydrogen, (C.sub.1-6) alkyl or acetyl;each of R.sub.7 and R.sub.8 is hydrogen or (C.sub.1-6) alkyl;s is an integer of 1 or 2;with the proviso that when R.sub.6 is acetyl, R.sub.7 is hydrogen and X is other than S(O)R.sub.6 or S(O).sub.2 R.sub.6 ;z-w is alkyl, phenylalkyl or pyridylalkyl which can have an oxygen atom as part of the alkyl chain, and their use as CNS agents, antidiarrheals and antiemetics.Type: GrantFiled: February 28, 1989Date of Patent: May 1, 1990Assignee: Pfizer Inc.Inventors: Michael R. Johnson, Lawrence S. Melvin, Jr.
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Patent number: 4918236Abstract: A compound of the formula ##STR1## wherein R is halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 alkoxy, nitro; cyano; C.sub.1 -C.sub.2 haloalkyl, or R.sup.a SO.sub.m -wherein m is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl; R.sup.1 is hydrogen or C.sub.1 -C.sub.2 alkyl; R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.1 and R.sup.2 together are alkylene having 2 to 5 carbon atoms; R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.3 and R.sup.4 together are oxo; R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.6 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.5 and R.sup.6 together are alkylene having 2 to 5 carbon atoms; R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 - C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n -wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.Type: GrantFiled: June 9, 1986Date of Patent: April 17, 1990Assignee: ICI Americas Inc.Inventors: Christopher G. Knudsen, William J. Michaely
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Patent number: 4912220Abstract: Nitroaryl carbonyl Formula (IIA) compounds, their nitrodihydroaryl carbonyl Formula (I) intermediates, processes for preparing Formula (II) compounds, and a process for preparing Formula (I) compounds, wherein each process comprises the reaction of a nitroaryl compound with a silane.Type: GrantFiled: February 3, 1988Date of Patent: March 27, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thaliyil V. Rajanbabu
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Patent number: 4886619Abstract: Compounds are provided which comprise a fluorocarbon terminal portion and a chiral hydrocarbon terminal portion, said terminal portions being connected by a central core, said compounds having tilted smectic mesophases or having latent tilted smectic mesophases which develop when said compounds having said latent mesophases are in admixture with said compounds having tilted smectic mesophases or said compounds having latent tilted smectic mesophases.Type: GrantFiled: May 29, 1987Date of Patent: December 12, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventor: Eugene P. Janulis
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Patent number: 4871470Abstract: Cyclohexane derivatives of formula I ##STR1## wherein R is an alkyl group which has 1-12 C atoms and in which one or two non-adjacent CH.sub.2 groups can also be replaced by O, --CO--O-- or --OCO--,A.sup.1 and A.sup.2 each independently of one another are trans-1,4-cyclohexylene or unsubstituted or fluorine-substituted 1,4-phenylene, and one of the groups A.sup.1 and A.sup.2 can also be a single bond,X is --CN, halogen, OH, --COOR.sup.1, --OOCR.sup.1, --COR.sup.1, --OR.sup.1 or R.sup.1 andR.sup.1 is an alkyl group which has 1-12 C atoms and in which one or two CH.sub.2 groups can also be replaced by O, but excluding direct links between two O atoms,with the proviso that, in the case of X=CN, A.sup.2 is trans-1,4-cyclohexylene or fluorine-substituted, 1,4-phenylene, are suitable as components of liquid-crystalline phases.Type: GrantFiled: October 30, 1987Date of Patent: October 3, 1989Assignee: Merck Patent Gesellschaft mit Beschrankter HaftungInventors: Andreas Wachtler, Joachim Krause, Rudolf Eidenschink, Georg Weber
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Patent number: 4853151Abstract: Dispirotetradecanes of the formula I ##STR1## wherein R.sup.1 and R.sup.2 are each independently of each other alkyl containing 1 to 12 carbon atoms wherein one or more non-adjacent CH.sub.2 groups may also be replaced by --O--, --CO--, --CO--O--, --O--CO--, --O--COO-- and/or --CH.dbd.CH-- (trans), one of the radicals R.sup.1 and R.sup.2 also being H, F, Cl, Br, I, CN, NO.sub.2, NCS,A.sup.1 and A.sup.2 are each independently of each other trans-1,4-cyclohexylene wherein one or two non-adjacent CH.sub.2 groups may be replaced by --O-- and/or --S--, or 1,4-phenylene wherein one or more CH groups may also be replaced by N, with it also being possible optionally for A.sup.1 and A.sup.2 to be substituted laterally or axially by F, Cl, CN, CH.sub.3,Z.sup.1 and Z.sup.2 are each independently of each other --C--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--, --OCH.sub.2 -- or a single bond,m and n are each 0, 1 or 2,(m+n) 0, 1 or 2,X.sup.1, X.sup.2, X.sup.3 and X.sup.Type: GrantFiled: August 11, 1987Date of Patent: August 1, 1989Assignee: Merck Patent Gesellschaft Mit Beschrankfter HaftungInventors: Fritz Vogtle, Wolfgang Calaminus
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Patent number: 4837352Abstract: An intermediate compound having the structural formula ##STR1## wherein R is halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 alkoxy, nitro; cyano; C.sub.1 -C.sub.2 haloalkyl, or R.sup.a SO.sub.n - wherein n is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl; R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.1 and R.sup.2 together are alkylene having 2 to 5 carbon atoms; R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.3 and R.sup.4 together can be oxo; R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.6 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.5 and R.sup.6 together are alkylene having 2 to 5 carbon atoms; R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub. 1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n - wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.Type: GrantFiled: March 21, 1988Date of Patent: June 6, 1989Assignee: Stauffer Chemical CompanyInventor: Christopher G. Knudsen
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Patent number: 4829091Abstract: An improved method for the decarbalkoxylation of alkylated .beta.-keto esters to obtain high yields of ketones. In accordane with the method, decarbalkoxylation of alkylated .beta.-keto esters is accomplished by heating the esters in the presence of dilute aqueous alkali and an effective amount of a phase-transfer agent. The method produces commercially practical yields of ketone in a manner which is facile, economical and environmentally safe. Novel methylene-linked pyrethroid ketones produced from the improved method exhibit insecticidal activity against various agricultural pests.Type: GrantFiled: May 27, 1987Date of Patent: May 9, 1989Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Frank D. Mills, Richard T. Brown, Giles D. Mills, Jr
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Patent number: 4822905Abstract: Compounds having the structural formula ##STR1## wherein R.sub.1, R.sub.2 R.sub.3, R.sub.4 and R.sup.5 are the same or different and are selected from the group consisting of hydrogen, chlorine, bromine, iodine, nitro, alkyl having from 1 to 4 carbon atoms, alkoxy having from 1 to 4 carbon atoms, trifluoromethyl, trifluoromethoxy, cyano, alkylsulfonyl, and alkylthio having from 1 to 4 carbon atoms, and wherein R.sub.2 and R.sub.3 or R.sub.3 and R.sub.4 together can be methylene or ethylenedioxy.Type: GrantFiled: June 9, 1986Date of Patent: April 18, 1989Assignee: Stauffer Chemical CompanyInventors: David L. Lee, Donald R. James, William J. Michaely
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Patent number: 4820331Abstract: Cyclohexenone derivatives of the general formula ##STR1## where R is C.sub.1 -C.sub.6 -alkyl, cyclopropyl, phenyl or C.sub.2 -C.sub.6 -alkoxyalkyl, R.sup.1 is hydrogen, tetrahydropyran-2-yl, benzoyl or unsubstituted or halo-substituted C.sub.1 -C.sub.6 -alkanoyl, and R.sup.2 is hydrogen or C.sub.1 -C.sub.6 -alkyl, and phytophysiologically tolerable salts thereof, and their use for regulating plant growth.Type: GrantFiled: December 3, 1987Date of Patent: April 11, 1989Assignee: BASF AktiengesellschaftInventors: Michael Keil, Ulrich Schirmer, Dieter Kolassa, Juergen Kast, Wilhelm Rademacher, Johann Jung
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Patent number: 4795488Abstract: Compounds of the formula ##STR1## wherein R is halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; trifluoromethoxy or difluoromethoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; R.sup.a SO.sub.n --wherein n is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl, trifluoromethyl or difluoromethyl;R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are C.sub.2 -C.sub.5 alkylene;R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.3 and R.sup.4 together are C.sub.2 -C.sub.5 alkylene;R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n -- wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) --NR.Type: GrantFiled: September 12, 1986Date of Patent: January 3, 1989Assignee: Stauffer Chemical CompanyInventor: David L. Lee
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Patent number: 4783213Abstract: Compounds of the formula ##STR1## wherein X is oxy, thio, sulfinyl or sulfonyl;R is halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; trifluoromethoxy; difluoromethoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; R.sup.a SO.sub.n -- wherein n is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl, trifluoromethyl or difluoromethyl;R.sup.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl or substituted phenyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are C.sub.2 -C.sub.5 alkylene;R.sup.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl or substituted phenyl with the proviso that R.sup.1 and R.sup.3 are not both phenyl or substituted phenyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.6 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, or phenyl;R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.Type: GrantFiled: August 20, 1987Date of Patent: November 8, 1988Assignee: Stauffer Chemical CompanyInventor: David L. Lee
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Patent number: 4781751Abstract: Compounds of the formula ##STR1## wherein R is halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; trifluoromethoxy; difluoromethoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; R.sup.a SO.sub.n -- wherein n is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl; trifluoromethyl or difluoromethyl;R.sup.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, halogen, phenyl or substituted phenyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are C.sub.2 -C.sub.5 alkylene;R.sup.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl or substituted phenyl, with the proviso that R.sup.1 and R.sup.3 are not both phenyl or substituted phenyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.5 is hydrogen, halogen or C.sub.1 -C.sub.4 alkyl;R.sup.6 is halogen, cyano, nitro, trifluoromethyl, --C(O)--OR.sup.f wherein R.sup.f is C.sub.1 -C.sub.4 alkyl, or --C(O)NR.sub.2.sup.b wherein R.sup.b is hydrogen or C.sub.1 -C.sub.2 alkyl;R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.Type: GrantFiled: October 2, 1987Date of Patent: November 1, 1988Assignee: Stauffer Chemical CompanyInventor: Hsiao-Ling M. Chin
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Patent number: 4767447Abstract: Compounds of the formula ##STR1## wherein R is halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; trifluoromethoxy or difluoromethoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; R.sup.a SO.sub.n -- wherein n is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl, trifluoromethyl or difluoromethyl;R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are C.sub.2 -C.sub.5 alkylene;R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.3 and R.sup.4 together are C.sub.2 -C.sub.5 alkylene;R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n -- wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) --NR.Type: GrantFiled: September 12, 1986Date of Patent: August 30, 1988Assignee: Stauffer Chemical CompanyInventors: David L. Lee, William J. Michaely
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Patent number: 4767879Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: X is selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkynyl, alkenyloxy, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, amino, substituted amino, and the groups formyl and alkanoyl and the oxime, imine and Schiff base derivatives thereof;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl, substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl, and phenyl;m is an integer chosen from 3 to 5.Type: GrantFiled: December 17, 1986Date of Patent: August 30, 1988Assignee: ICI Australia LimitedInventors: Keith G. Watson, Lynette A. Garson, Graham J. Bird, Lindsay E. Cross, Graeme J. Farquharson
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Patent number: 4760192Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, acyl, alkylsulfonyl, benzenesulfonyl, substituted benzenesulfonyl, and an inorganic or organic cation;R.sup.2 is selected from alkyl, alkenyl, alkynyl, substituted alkyl, haloalkenyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl and phenyl; andn is an integer chosen from 2 to 5.The compounds are cereal selective herbicides and in further embodiments the invention provides processes for the preparation of compounds of formula I, intermediates useful in the preparation of compounds of formula I, herbicidal compositions containing as active ingredient a compound of formula I, and processes for severely damaging or killing unwanted plants by applying to the plants or to the growth medium of the plants an effective amount of a compound of formula I.Type: GrantFiled: December 29, 1986Date of Patent: July 26, 1988Assignee: Imperial Chemical Industries plcInventors: Richard B. Warner, Alexander Serban, Keith G. Watson, Graham J. Bird, Lindsay E. Cross, Graeme Farquharson
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Patent number: 4743690Abstract: Nitroaryl carbonyl Formula (IIA) compounds, their nitrodihydroaryl carbonyl Formula (I) intermediates, processes for preparing Formula (II) compounds, and a process for preparing Formula (I) compounds, wherein each process comprises the reaction of a nitroaryl compound with a silane.Type: GrantFiled: January 16, 1987Date of Patent: May 10, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thaliyil V. Rajanbabu
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Patent number: 4724263Abstract: Compounds of the formula ##STR1## wherein R is hydrogen; halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; or R.sup.a SO.sub.m --wherein m is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl;R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are methyl or ethyl;R.sup.5 and R.sup.6 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n --wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) --NR.sup.c R.sup.d wherein R.sup.c and R.sup.d independently are hydrogen or C.sub.1 -C.sub.4 alkyl; (11) R.sup.e C(O)--wherein R.sup.e is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; or (12) --SO.sub.2 NR.sup.c R.sup.d wherein R.sup.c and R.sup.d are as defined; and (13) --N(R.sup.c)C(O)R.sup.d wherein R.sup.c and R.sup.Type: GrantFiled: June 9, 1986Date of Patent: February 9, 1988Assignee: Stauffer Chemical CompanyInventor: Charles G. Carter
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Patent number: 4713392Abstract: A compound of formula IIR.sub.A CH.sub.2 COCHDR.sub.bin which formula:R.sub.A represents a group ArCR.sub.1 R.sub.2 -- in which Ar represents a phenyl or naphthyl group optionally substituted by one or more halogen, alkoxy, haloalkoxy, methylenedioxy or C.sub.1 -C.sub.6 alkyl or haloalkyl groups;R.sub.1 and R.sub.2 together with the carbon to which they are attached jointly represent a C.sub.3 -C.sub.6 cycloalkyl group optionally substituted by one or more halogen atoms or C.sub.1 -C.sub.6 cycloalkyl groups andR.sub.B represents the residue of an alcohol R.sub.B CHDOH in which D is hydrogen or cyano and of which the [IR, cis]2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropane carboxylic ester is signficantly insecticidal.Type: GrantFiled: May 10, 1985Date of Patent: December 15, 1987Assignee: National Research Development CorporationInventors: Michael Elliott, Norman F. Janes, Bhupinder P. S. Khambay
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Patent number: 4701536Abstract: Disclosed are a compound of Formula I: ##STR1## wherein R.sub.1 represents a hydrogen atom or a protective group for a hydroxyl group; and Z represents a direct bond (2,3-cis-5R*, 8S*) or an oxygen atom which forms an oxirane ring having a configuration of (2R*, 3R*, 5R*, 8S*),and a process for preparing the same.By use of the above compound as an intermediate, there can be synthesized periplanone-B which is a sex pheromone of periplaneta.Type: GrantFiled: July 7, 1986Date of Patent: October 20, 1987Assignee: UBE Industries, Ltd.Inventors: Jiro Tsuji, Takashi Takahashi
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Patent number: 4659862Abstract: Nitroaryl carbonyl Formula (IIA) compounds, their nitrodihydroaryl carbonyl Formula (I) intermediates, processes for preparing Formula (II) compounds, and a process for preparing Formula (I) compounds, wherein each process comprises the reaction of a nitroaryl compound with a silane.Type: GrantFiled: May 3, 1984Date of Patent: April 21, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thaliyil V. Rajanbabu
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Patent number: 4656192Abstract: New tropolone derivatives of the general formula: ##STR1## wherein R.sup.1 represents H or an alkyl group, R.sup.2 represents an alkyl, aryl, aralkyl or heterocyclic group and R.sup.3 represents an alkoxyl, aryl or heterocyclic group or a group of the formula: ##STR2## or R.sup.2 and R.sup.3 may form together a part of a heterocyclic group, their metal complex salts, processes for the preparation thereof and the use thereof as anti-tumor agents.Type: GrantFiled: June 14, 1984Date of Patent: April 7, 1987Assignee: Mect CorporationInventor: Masatoshi Yamato
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Patent number: 4625066Abstract: Novel substituted acetylene-ketones of the formulaR.sup.2 --C.tbd.C--CO--R.sup.1 (I)in whichR.sup.1 represents optionally substituted cycloalkyl with 4 to 7 carbon atoms or the groupings ##STR1## or represents optionally substituted aryl, if R.sup.2 represents optionally substituted cycloalkenyl or optionally substituted cycloalkylalkyl;R.sup.2 represents alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, optionally substituted cycloalkylalkyl, optionally substituted aryl or optionally substituted aralkyl;R.sup.3 represents halogen;R.sup.4 represents hydrogen or halogen;R.sup.5 represents alkyl with more than 1 carbon atom, alkenyl, alkinyl or the CHO group or a derivative thereof, or represents methyl, if R.sup.2 represents optionally substituted cycloalkenyl or optionally substituted cycloalkylalkyl;R.sup.6 represents cyano, optionally substituted aryl or the groupings --XR.sup.7 or --CONR.sup.8 R.sup.9 ;R.sup.Type: GrantFiled: November 29, 1984Date of Patent: November 25, 1986Assignee: Bayer AktiengesellschaftInventor: Hans-Ludwig Elbe
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Patent number: 4621901Abstract: Liquid crystalline mixtures containing compounds of the formula ##STR1## wherein n stands for the number 0 or 1; X.sup.1 and X.sup.2 denote single covalent bonds or one of the symbols X.sup.1 and X.sup.2 also denotes --COO--, --OOC-- or --CH.sub.2 CH.sub.2 --; the rings A.sup.1, A.sup.2, and A.sup.3 represent 1,4-phenylene, 2-fluoro-1,4-phenylene or trans-1,4-cyclohexylene or one of these rings also represents a 2,5-disubstituted pyrimidine ring or a trans-2,5-disubstituted m-dioxane ring; R.sup.1 signifies 4-alkenyl or on a cyclohexyl ring also 2Z-alkenyl; and R.sup.2 denotes alkyl, alkoxy, --CN or --NCS,as well as the manufacture of these compounds and the use for electro-optical purposes are described.Type: GrantFiled: June 26, 1985Date of Patent: November 11, 1986Assignee: Hoffmann-La Roche Inc.Inventors: Martin Petrzilka, Martin Schadt
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Patent number: 4618627Abstract: A catechol derivative represented by the formula ##STR1## The compounds of this invention are useful for the prophylaxis and treatment for various allergic diseases, ischemic heart diseases and inflammations caused by slow reacting substance of anaphylaxis (SRS-A), since the compounds inhibit very potently the formation and release of SRS-A.Type: GrantFiled: May 11, 1984Date of Patent: October 21, 1986Assignee: Yamanouchi Pharmaceutical Co., Ltd.Inventors: Kiyoshi Murase, Toshiyasu Mase, Hideki Arima, Kenichi Tomioka
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Patent number: 4614747Abstract: This invention relates to novel compounds having pharmaceutical activity and having the general structure ##STR1## wherein the Z, R.sub.1, R.sub.2, R.sub.3, R.sub.4, n and m are defined within.Type: GrantFiled: November 29, 1984Date of Patent: September 30, 1986Assignee: USV Pharmaceutical Corp.Inventors: Bernard Loev, Howard Jones, Wan-kit Chan
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Patent number: 4594465Abstract: Novel terphenyls having a relatively high clearing point and which are suitable for use in liquid crystal materials or in the preparation of compounds for use in such material are characterised by a formula: ##STR1## wherein: R.sub.1 is selected from H, alkyl, alkoxy, alkylcarbonyl, alkylcarbonyloxy and alkoxycarbonyloxy;R.sub.2 is selected from H, alkyl, alkoxy;X.sub.1 is selected from H and fluorine;X.sub.2 is selected from H and fluorine; and ##STR2## is selected from ##STR3## and ##STR4## provided that one of X.sub.1 and X.sub.2 is fluroine. Compounds wherein ##STR5## is ##STR6## or ##STR7## are generally useful as liquid crystal compounds.Type: GrantFiled: July 19, 1984Date of Patent: June 10, 1986Assignees: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland, Merck Patent Gesellschaft mit beschrankter HaftungInventors: Lawrence Kam Ming Chan, George W. Gray, Kenneth J. Toyne, David Lacey, Rudolf Eidensschink, Michael Romer
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Patent number: 4587357Abstract: A process for direct preparation of enantiomers of a substituted fluorenyloxyacetic acid is disclosed. The acetic acid derivative is useful for treating brain edema.Type: GrantFiled: October 1, 1984Date of Patent: May 6, 1986Assignee: Merck & Co., Inc.Inventor: Apurba Bhattacharya
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Patent number: 4551264Abstract: New polyhalogenoaromatic compounds of Formula I ##STR1## wherein Y and Z are each independently alkyl, alkoxy or alkanoyl each of 1 to 12 C atoms, --COOR.sup.1, --O--CO--R.sup.1, CN, NO.sub.2, NH.sub.2 or OH;Q is one or two identical or different radicals selected from Ph, Cy, 1,4-bicyclo[2,2,2]octylene or 1,3-dioxane-2,5-diyl;X.sup.1 to X.sup.4 are each independently H, F, Cl or Br;R.sup.1 is alkyl of 1 to 4 C atoms, Ph--R.sup.2 or Cy--R.sup.2 ;R.sup.2 is alkyl or alkoxy each of 1-12 C atoms or CN;Ph is 1,4-phenylene; and Cy is 1,4-cyclohexylene,can be used as components of liquid-crystal dielectrics.Type: GrantFiled: March 14, 1983Date of Patent: November 5, 1985Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Rudolf Eidenschink, Michael Romer, Georg Weber
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Patent number: 4544771Abstract: Halogenobiphenyl derivatives of Formula I ##STR1## wherein R.sup.1 and R.sup.2 are each alkyl or alkoxy in each case of 1-10 C atoms, Cy is 1,4-cyclohexylene, Ph is 1,4-phenylene, Q is --O--Cy-- or --O--Ph--, m and n are each 0 or 1 and X is F, Cl or Br, can be used as components of liquid crystal dielectrics for electrooptical display elements.Type: GrantFiled: February 8, 1985Date of Patent: October 1, 1985Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Michael Romer, Joachim Krause, Georg Weber
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Patent number: 4536321Abstract: Novel liquid crystal compounds having a large positive dielectric anisotropy value and also a low viscosity and a good stability to heat, light, air and water, and liquid crystal compositions containing the same are provided, which compounds are fluorobenzene derivatives expressed by the general formula ##STR1## wherein n represents 1 or 2, X represents CN or COCH.sub.3, and R represents hydrogen atom or an alkyl group or an alkoxy group each of 1 to 15 carbon atoms.Type: GrantFiled: February 16, 1984Date of Patent: August 20, 1985Assignee: Chisso CorporationInventors: Shigeru Sugimori, Tetsuhiko Kojima, Yasuyuki Goto, Toyoshiro Isoyama, Kazunori Nigorikawa
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Patent number: 4529490Abstract: Aryliodonium salts resulting from the condensation of aryliodosotosylates and aryl ketones are provided which are used as photoinitiators to effect deep section UV cures. Deep section photopolymerizable organic materials are also provided which can be used as encapsulating agents to encapsulate a wide variety of electronic components.Type: GrantFiled: May 23, 1983Date of Patent: July 16, 1985Assignee: General Electric CompanyInventors: James V. Crivello, Julia L. Lee