Chalcogen Attached Directly To The Hetero Ring By Nonionic Bonding Patents (Class 549/52)
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Patent number: 5051421Abstract: Benzo[b]thiophene derivatives of formula ##STR1## their tautomers and salts, in which the index n is 0, 1 or 2, alk is lower alkylene, Ar is phenyl, naphthyl or a monocyclic, five- or six-membered heteroaryl radical, wherein the aromatic radical is unsubstituted or is mono- or poly-substituted by lower alkyl, halo-lower alkyl, halogen and/or by nitro, and the ring A is unsubstituted or is mono- or poly-substituted by lower alkyl, lower alkoxy, lower alkylthio, lower alkanesulfinyl, lower alkanesulfonyl, halo-lower alkyl, halogen and/or by nitro, can be used, for example, as active ingredients in medicaments.Type: GrantFiled: January 18, 1990Date of Patent: September 24, 1991Assignee: Ciba-Geigy CorporationInventor: Pier G. Ferrini
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Patent number: 5028725Abstract: This invention relates to novel compounds which are precursors for di- and triarylmethane dye precursor compounds possessing a thiolactone, dithiolactone or thioether ring-closing moiety.Type: GrantFiled: December 7, 1989Date of Patent: July 2, 1991Assignee: Polaroid CorporationInventor: Patrick F. King
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Patent number: 4999436Abstract: Aryl substituted thiophenes 3-ols, its dihydro derivatives, 1-oxide and 1,1-dioxide analogs, as well as aryl substituted furans, are 5-lipoxygenase inhibitors useful in the treatment of inflammation and other leukotriene-mediated diseases.Type: GrantFiled: August 22, 1989Date of Patent: March 12, 1991Assignee: Merck & Co., Inc.Inventors: Bruce E. Witzel, Debra L. Allison, Charles G. Caldwell, Kathleen Rupprecht
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Patent number: 4970309Abstract: This invention relates to a novel method of synthesizing di- and triarylmethane dye precursor compounds possessing a thiolactone ring-closing moiety, from the corresponding lactones.Type: GrantFiled: December 7, 1989Date of Patent: November 13, 1990Assignee: Polaroid CorporationInventor: Patrick F. King
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Patent number: 4929738Abstract: Microbicidal substituted pyrazolin-5-ones of the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another each represent hydrogen, alkyl, alkenyl, alkinyl, cyanoalkyl, hydroxyalkyl, alkoxyalkyl, alkylthioalkyl, alkoxycarbonyl, hydroxycarbonylalkyl, alkoxycarbonylalkyl, aminocarbonylalkyl, alkylaminocarbonylalkyl or dialkylaminocarbonylalkyl, or represent in each case optionally substituted oxiranylalkyl, aralkyl, heterocyclyl or aryl andHet represents an optionally substituted heterocyclic radial.Intermediates therefor of the formula ##STR2## in which R is alkyl, are also new.Type: GrantFiled: May 10, 1989Date of Patent: May 29, 1990Assignee: Bayer AktiengesellschaftInventors: Klaus Jelich, Wilhelm Brandes, Gerd Hanssler, Paul Reinecke
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Patent number: 4888351Abstract: This invention relates to compounds presented by the general formula: ##STR1## [wherein R.sup.1 and R.sup.2 are: (i) R.sup.1, R.sup.2 and carbon atoms to which R.sup.1 and R.sup.2 are linked, together represent the group of the general formula: ##STR2## (wherein R.sup.5 and R.sup.6 represent hydrogen, alkyl, cycloalkyl, cycloalkyl-alkyl or phenyl, independently, with the proviso that R.sup.5 and R.sup.6 is not hydrogen atoms at the same time), or(ii) R.sup.1 represents hydrogen and R.sup.2 represents the group of the formula: --COR.sup.7 (wherein R.sup.7 represents the group of the formula: ##STR3## (wherein Y represents a single-bond, alkylene, alkenylene, W represents oxygen or sulfur, m represents 1 to 3, R.sup.8 represents hydrogen, halogen, nitro, hydroxy, alkyl or alkoxy, with the proviso that when m represents two or more, plural R.sup.8 s may be different each, and R.sup.9 represents hydrogen, alkyl or phenyl group, with the proviso that two of R.sup.9 may be different each)), R.sup.Type: GrantFiled: November 7, 1988Date of Patent: December 19, 1989Assignee: Ono Pharmaceutical Co., Ltd.Inventors: Katsuhiro Imaki, Tadao Okegawa, Yoshinobu Arai
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Patent number: 4873259Abstract: Compounds of the formula: ##STR1## wherein R.sub.1 is (1) hydrogen, (2) C.sub.1 to C.sub.4 alkyl, (3) C.sub.2 to C.sub.4 alkenyl, or (4) NR.sub.2 R.sub.3, wherein R.sub.2 and R.sub.3 are independently selected from (1) hydrogen, (2) C.sub.1 to C.sub.4 alkyl and (3) hydroxyl, but R.sub.2 and R.sub.3 are not simultaneously hydroxyl;wherein X is oxygen, sulfur, SO.sub.2, or NR.sub.4, wherein R.sub.4 is (1) hydrogen, (2) C.sub.1 to C.sub.6 alkyl, (3) C.sub.1 to C.sub.6 alkoyl, (4) aroyl, or (5) alkylsulfonyl;A is selected from C.sub.1 to C.sub.6 alkylene and C.sub.2 to C.sub.6 alkenylene;n is 1-5;Y is selected independently at each occurrence from (1) hydrogen, (2) halogen, (3) hydroxy, (4) cyano, (5) halosubstituted alkyl, (6) C.sub.1 to C.sub.12 alkyl, (7) C.sub.2 to C.sub.12 alkenyl, (8) C.sub.1 to C.sub.12 alkoxy, (9) C.sub.3 to C.sub.8 cycloalkyl, (10) C.sub.1 -C.sub.8 thioalkyl, (11) aryl, (12) aryloxy, (13) aroyl, (14) C.sub.1 to C.sub.12 arylalkyl, (15) C.sub.2 to C.sub.12 arylalkenyl, (16) C.sub.1 to C.Type: GrantFiled: January 11, 1988Date of Patent: October 10, 1989Assignee: Abbott LaboratoriesInventors: James B. Summers, Jr., Bruce P. Gunn, Dee W. Brooks
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Patent number: 4853149Abstract: Heterocyclic liquid crystal compounds containing the structural element ##STR1## wherein M is H, CN,, NCS, halogen or an alkyl group with 1-5 C atoms,X is CR.sup.4 or N,Y is CHR.sup.4, O, S or NR.sup.5,R.sup.4 is H, alkyl with 1-15 C atoms, halogen or cyano andR.sup.5 is H or alkyl with 1-15 C atoms,with the proviso that in the case where Y=CHR.sup.4, X is N, are suitable as components of liquid crystal phases.Type: GrantFiled: October 26, 1987Date of Patent: August 1, 1989Assignee: Merck Patent Gesellschaft Mit Beschrankter HaftungInventors: Joachim Krause, Andreas Wachtler, Bernhard Scheuble, Georg Weber
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Patent number: 4792634Abstract: A method for preparing aryl sulfides by heating an iodoaromatic compound with elemental sulfur at a temperature above about 150.degree. C.Type: GrantFiled: August 20, 1987Date of Patent: December 20, 1988Assignee: Eastman Kodak CompanyInventor: Mark Rule
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Patent number: 4791123Abstract: There are provided new alkane and alkoxyalkane derivatives of the general formula I ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4 and A have the meanings given in the description, processes for their preparation and insecticidal and acaricidal compositions containing these compounds.Type: GrantFiled: January 22, 1987Date of Patent: December 13, 1988Assignee: Schering Akt.Inventors: Helga Franke, Heinrich Franke, Hans-Rudolf Kruger, Hartmut Joppien, Dietrich Baumert, David Giles
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Patent number: 4762853Abstract: 1-Oxo-1,3,4,7-tetrahydrobenzofuranes of the formula ##STR1## in which X is O or S,R is optionally substituted phenyl or heteroaryl,R.sup.1 is OH, monoalkylamino or dialkylamino, andR.sup.2 is an acyl or esterified carboxy radical,or pharmacologically acceptable salts thereof, which are active in circulation, e.g. they increase myocardial contractility, increase the flow of Ca.sup.2+ into the cell, increase blood pressure, reduce blood sugar, reduce swelling of mucous membranes and affect the salt and/or fluid balance.Type: GrantFiled: October 10, 1986Date of Patent: August 9, 1988Assignee: Bayer AktiengesellschaftInventors: Siegfried Goldmann, Matthias Schramm, Gunter Thomas, Rainer Gross
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Patent number: 4760086Abstract: N-Alkenyl-3-hydroxybenzo[b]thiophene-2-carboxamide derivatives have been prepared by:(1) treating a substituted 2-halobenzoate with thioacetamide followed by N-alkenylation with appropriate agents, such as aldehydes, ketones, enol ethers, epoxides, acetals or ketals;(2) treating a substituted thiosalicylate with an appropriately substituted haloacetamide, followed by dehydration; and(3) further synthetic modification of compounds prepared above.These compounds have been found to be effective inhibitors of both cyclooxygenase and lipoxygenase and thereby useful in the treatment of pain, fever, inflammation, arthritic conditions, asthma, allergic disorders, skin diseases, cardiovascular disorders, psoriasis, inflammatory bowel disease, glaucoma or other prostaglandins and/or leukotriene mediated diseases.Type: GrantFiled: February 27, 1985Date of Patent: July 26, 1988Assignee: Merck & Co., Inc.Inventors: Allan N. Tischler, Bruce E. Witzel, Philippe L. Durette, Kathleen M. Rupprecht, Timothy F. Gallagher, Debra L. Allison, Marvin M. Goldenberg
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Patent number: 4742077Abstract: Compounds of formula I ##STR1## wherein R.sub.1 represents a group of formula ##STR2## whereby R.sub.4 and R.sub.5 are the same or different and represent hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl and X represents oxygen, sulfur, imino, lower alkylimino, --(CH.sub.2)--, --(S.CH.sub.2)-- or --(O.CH.sub.2)--,R.sub.2 represents hydrogen or lower alkyl,R.sub.3 represents a group of formula ##STR3## whereby R.sub.6, R.sub.7 and R.sub.8 are the same or different and represent hydrogen or alkyl or R.sub.6 together with R.sub.7 or R.sub.7 together with R.sub.8 represent --(CH.sub.2).sub.m -- wherein m is 3 to 6,R.sub.9 represents alkyl, alkenyl, trialkylsilyl or alkyl substituted by hydroxy, lower alkoxy, lower halogenalkyl or aryl andn stands for 1, 2 or 3,which possess pharmaceutical in particular antimycotic activity as well as activity against phytopathogenic fungi.Type: GrantFiled: September 8, 1986Date of Patent: May 3, 1988Assignee: Sandoz Ltd.Inventor: Anton Stutz
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Patent number: 4663344Abstract: 3-Hydroxybenzo[b]thiophene derivatives, such as 2-aralkyl, 2-alkyl and 2-alkenyl-3-hydroxybenzo[b]-thiophenes, were prepared by, among other methods, ring closure of 2-(2-carboxy-phenylthio)-.alpha.-substituted acetic acids. These compounds are found to be useful in the treatment of pain, fever, inflammation, arthritic conditions, asthma, allergic disorders, skin diseases, cardiovascular disorders, psoriasis, inflammatory diseases and other prostaglandin and/or leukotriene mediated diseases.Type: GrantFiled: March 11, 1985Date of Patent: May 5, 1987Assignee: Merck & Co., Inc.Inventors: Philippe L. Durette, Bruce E. Witzel, Kathleen M. Rupprecht, Allan N. Tischler, Timothy F. Gallagher
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Patent number: 4652660Abstract: Process for preparing thioindigo compounds of the formula ##STR1## in which A and B denote identical or different, optionally substituted benzene rings or benzene rings to which may be joined further carbocyclic and heterocyclic rings,characterized in that compounds of the formulae ##STR2## in which A and B have the abovementioned meaning andX denotes halogen, such as bromine and preferably chlorine,are reacted in a liquid mixture of an aluminium halide, an alkali metal halide and a carboxamide or sulphonamide, and the resulting intermediate product is subsequently, if desired after prior isolation, oxidized in a manner known per se, and the batch is worked up for the compounds of the formula (I).Type: GrantFiled: July 15, 1985Date of Patent: March 24, 1987Assignee: Bayer AktiengesellschaftInventors: Detlef-Ingo Schutze, Klaus Wunderlich
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Patent number: 4617407Abstract: Compounds having the formula: ##STR1## are antagonists of leukotrienes of C.sub.4, D.sub.4 and E.sub.4, the slow reacting substance of anaphylaxis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory and cytoprotective agents.Type: GrantFiled: August 30, 1984Date of Patent: October 14, 1986Assignee: Merck Frosst Canada, Inc.Inventors: Robert N. Young, Joshua Rokach
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Patent number: 4579865Abstract: Compounds of the structure; ##STR1## and pharmaceutically acceptable salts thereof, wherein:R.sub.1 is H, alkyl, alkoxy, carboxyl, alkylcarboxy, trifluoromethyl, halogen, nitro or hydroxy;X is O, N, S or C;Y is O, N or S; andR.sub.2 is H, alkyl, cycloalkyl, aryl or heteroaryl useful in the treatment of ischemic heart disease and hypertriglyceridemia.Type: GrantFiled: March 28, 1984Date of Patent: April 1, 1986Assignee: USV Pharmaceutical Corp.Inventors: John H. Musser, Charles A. Sutherland
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Patent number: 4571406Abstract: Compounds of formula (I): ##STR1## wherein: either one of R.sub.1 and R.sub.2 is hydrogen and the other is selected from the class of C.sub.1-6 alkylcarbonyl, C.sub.1-6 alkoxycarbonyl, C.sub.1-6 alkylcarbonyloxy, C.sub.1-6 alkylhydroxymethyl, nitro, cyano, chloro, trifluoromethyl, C.sub.1-6 alkylsulphinyl, C.sub.1-6 alkylsulphonyl, C.sub.1-6 alkoxysulphinyl, C.sub.1-6 alkoxysulphonyl, C.sub.1-6 alkylcarbonylamino, C.sub.1-6 alkoxycarbonylamino, C.sub.1-6 alkyl-thiocarbonyl, C.sub.1-6 alkoxy-thiocarbonyl, C.sub.1-6 alkyl-thiocarbonyloxy, 1-mercapto C.sub.2-7 alkyl, formyl or aminosulphinyl, aminosulphonyl or aminocarbonyl, the amino moiety being optionally substituted by one or two C.sub.1-6 alkyl groups, or C.sub.1-6 alkylsulphinylamino, C.sub.1-6 alkylsulphonylamino C.sub.1-6 alkoxysulphinylamino or C.sub.1-6 alkoxysulphonylamino, or ethylenyl terminally substituted by C.sub.1-6 alkylcarbonyl, nitro or cyano, or --C(C.sub.1-6 alkyl)NOH or --C(C.sub.1-6 alkyl)NNH.sub.2, or one of R.sub.1 and R.sub.Type: GrantFiled: May 16, 1984Date of Patent: February 18, 1986Assignee: Beecham Group p.l.c.Inventors: John M. Evans, Frederick Cassidy
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Patent number: 4563476Abstract: Substituted 5-hydroxy-2,3-dihydrobenzofuran and analogs such as the substituted 6-hydroxy-2,3-dihydrobenzopyrans were prepared from an appropriately substituted (5-hydroxy-2,3-dihydrobenzofuran-6-yl) formaldehyde or analog thereof with an aryl amine followed by reduction. These compounds were found to be potent topical anti-inflammatory agents.Type: GrantFiled: November 21, 1983Date of Patent: January 7, 1986Assignee: Merck & Co., Inc.Inventors: Michael N. Chang, Milton L. Hammond, Norman P. Jensen, Robert A. Zambias
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Patent number: 4555580Abstract: Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different, optionally substituted benzene rings or benzene rings to which further carbocyclic and heterocyclic rings can be fused,characterized in that compounds of the formula ##STR2## in which A and B have the abovementioned meaning, are reacted in a mixture of chlorosulphonic acid and a further halide of an inorganic acid and, if appropriate, the resulting reaction product is oxidized in a manner which is in itself known and the batch is worked up to give compounds of the formula (I).Type: GrantFiled: September 26, 1983Date of Patent: November 26, 1985Assignee: Bayer AktiengesellschaftInventors: Detlef-Ingo Schutze, Reinold Schmitz, Klaus Wunderlich
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Patent number: 4495353Abstract: The invention relates to a process for substituting for a halogen atom attached to the nuclear carbon atom of an aromatic ring, a substituent of the formula -O-R wherein R represents alkyl, alkenyl, alkynyl or benzyl, which process comprises reacting the halogen-substituted aromatic compound with an alcoholate of the formula M.sup.n+ [O--R].sub.n.sup..crclbar. wherein M is an alkali metal atom or alkaline earth metal atom, n is the valency of M, and R is as defined above, in the presence of an active catalyst mixture comprising (i) a formic acid ester of an organic alcohol having the formula R.sup.2 --O--CO--H wherein R.sup.2 is as defined for R above; and (ii) a cuprous salt; in a liquid medium which is a solvent for the catalyst mixture and in which the halogen-substituted aromatic compound is at least partially soluble, under substantially anhydrous conditions and a non-oxidizing atmosphere. The invention further relates to a catalyst used in the above process.Type: GrantFiled: June 13, 1983Date of Patent: January 22, 1985Assignee: Sterling Drug Inc.Inventor: Robert J. Bryant
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Patent number: 4451654Abstract: A process for the preparation of deeply colored organic pigments by crystallizing finely divided crude organic pigments, whose primary particles have a size of .ltoreq.0.2 .mu.m, in C.sub.3 -C.sub.5 -alkanes, C.sub.3 -C.sub.5 -alkenes or C.sub.1 -C.sub.3 -chloroalkanes at from 40.degree. to 250.degree. C. to under atmospheric pressure or superatmospheric pressure, and isolating the pigment.The pigments obtained by the process give deep, brilliant colorations.Type: GrantFiled: September 20, 1982Date of Patent: May 29, 1984Assignee: BASF AktiengesellschaftInventors: Fritz Graser, Gerhard Wickenhaeuser
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Patent number: 4426385Abstract: Novel bicyclooxyphenyl ureas, such as 1-(bicyclooxyphenyl)-benzoyl ureas, are provided which exhibit pesticidal activity. The compositions are conveniently prepared by reacting an isocyanate with either an amide or a bicyclooxyaniline.Type: GrantFiled: September 28, 1981Date of Patent: January 17, 1984Assignee: Union Carbide CorporationInventor: Paul A. Cain
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Patent number: 4424231Abstract: There are described compounds of formula I, ##STR1## in which Ra, Rb, Rc, Rd, Re, Rf and Rg, which may be the same or different, each represent hydrogen, amino, hydroxy, alkoxy, alkenyloxy, halogen, acyl, alkenyl, alkyl, or alkoxy substituted by phenyl,Rh is hydrogen, alkyl or --COOH.X is a hydrocarbon chain containing from 2 to 10 carbon atoms and optionally substituted by a hydroxy group,A has no significance or represents Y, OY, or SY and Y represents a C 1 to 4 hydrocarbon chain which is optionally substituted by alkyl C 1 to 4,E and G, which may be the same or different, each represent --O--, --S-- or --CH.sub.2 --, provided that at least one of E and G is --O-- or --S--,L, together with the carbon atoms to which it is attached, forms a benzene, furan, thiophene, pyrrole, or pyran-2-one ring,and pharmaceutically acceptable derivatives thereof.Type: GrantFiled: March 19, 1982Date of Patent: January 3, 1984Assignee: Fisons LimitedInventors: John R. Bantick, John Fuher, David N. Hardern, Thomas B. Lee
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Patent number: 4362740Abstract: New spiro compounds of the formula: ##STR1## wherein n is an integer of 1 to 4, and X is halogen, lower alkyl, nitro, amino which may be substituted, hydroxyl which may be substituted, acyl, carboxyl, lower alkoxycarbonyl, carbamoyl which may be substituted, sulfamoyl which may be substituted, lower alkylthio or lower alkylsulfonyl, or two of X at the 5- and 6-positions together form --CH.dbd.CH--CH.dbd.CH--, exhibit inhibitory activity to thrombocyte aggregation and are useful for the prophylaxis or treatment of cardiovascular disturbance such as thrombosis.Type: GrantFiled: September 19, 1980Date of Patent: December 7, 1982Assignee: Takeda Chemical Industries, Ltd.Inventors: Isuke Imada, Hirosada Sugihara, Mitsuru Kawada
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Patent number: 4316046Abstract: A process for the preparation of aryl carboxylates is provided in which an arylmetallo carboxylate is contacted with an aryliodoso carboxylate in liquid medium to form the desired aryl carboxylate. Promoters can be employed to increase the rate of reaction and improve selectivity to the aryl carboxylate.Type: GrantFiled: August 29, 1980Date of Patent: February 16, 1982Assignee: The Halcon SD Group, Inc.Inventor: Lawrence C. Costa
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Patent number: 4316045Abstract: A process for the catalytic preparation of aryl carboxylates is provided in which an arylmetallo carboxylate is contacted in liquid medium with an organic peracid in the presence of a catalytic amount of an aryl iodide, to form the desired aryl carboxylate.Type: GrantFiled: August 29, 1980Date of Patent: February 16, 1982Assignee: The Halcon SD Group, Inc.Inventor: Lawrence C. Costa
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Patent number: 4304919Abstract: The invention relates to asymmetrical thioindigo compounds of the formula I ##STR1## wherein at least one substituent R is different from a substituent R' and preferably at most three Rs or R's are different from hydrogen, e.g. the compound (I), wherein theRs and R's in the positions 4, 6, 7, 4', 6' and 7' are hydrogen, the R in position 5 is methyl and the R' in position 5' is --(CH.sub.2) OCOCH.sub.3. These compounds can be obtained by a novel process in simple and economic manner and in high purity by reacting a compound of the formula II ##STR2## (wherein X is halogen) with corresponding thiophenols, and cyclising the unsubstituted or substituted 2-thiophenyl-carboxymethylene-benzothiophen-3-ones thereby obtained. Some of the compounds of the formula I are known per se and they are used, inter alia, as disperse, melt spinning and pigment dyes.Type: GrantFiled: July 14, 1980Date of Patent: December 8, 1981Assignee: Ciba-Geigy CorporationInventors: Niklaus Buhler, Hans Bosshard
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Patent number: 4299966Abstract: 4,4',7,7'-Tetrachlorothioindigo can be obtained in a form directly suitable for use as a pigment if the oxidation of 3-hydroxy-4,7-dichloro-1-thionaphthene is performed in an alkaline medium in the presence of oxygen or an oxygen-containing gas.Type: GrantFiled: June 27, 1980Date of Patent: November 10, 1981Assignee: Bayer AktiengesellschaftInventors: Hans-Samuel Bien, Werner Beinert, Klaus Wunderlich
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Patent number: 4284789Abstract: Thioindigo and its derivatives are obtained in high yield and excellent purity by oxidizing corresponding 3-hydroxy-thionaphthenes with peroxo-disulfate in an aqueous alkaline solution.Type: GrantFiled: May 9, 1980Date of Patent: August 18, 1981Assignee: Hoechst AktiengesellschaftInventors: Ernst Spietschka, Manfred Urban
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Patent number: 4260778Abstract: Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different optionally substituted benzene rings or benzene rings onto which further carbocyclic and heterocyclic rings are fused,characterized in that compounds of the formula ##STR2## in which A and B have the meaning indicated above andX designates halogen, such as bromine and, preferably, chlorine,are reacted in a liquid mixture of an aluminium halide, an alkali metal halide and SO.sub.2 and the resulting intermediate product is then oxidized in a manner which is in itself known, if appropriate after first being isolated, and the mixture is worked up to give the compounds of the formula (I).Type: GrantFiled: May 21, 1979Date of Patent: April 7, 1981Assignee: Bayer AktiengesellschaftInventors: Detlef-Ingo Schutze, Klaus Wunderlich
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Patent number: 4260779Abstract: Oxothia compounds, especially 2-oxo-2,3-dihydro-benzo[b]thiophene compounds of the formula ##STR1## in which Ph represents an optionally substituted 1,2-phenylene radical, X represents oxygen or sulphur, R.sub.1 represents an organic radical bonded via a carbon atom and R.sub.2 denotes hydrogen or an optionally substituted hydrocarbon radical of aliphatic character, and their salts are useful as peripheral analgetics and/or as antiphlogistic uricosuric and/or thrombolytic agents.Type: GrantFiled: November 9, 1979Date of Patent: April 7, 1981Assignee: Ciba-Geigy CorporationInventors: Raymond Bernasconi, Pier G. Ferrini, Richard Goschke, Jacques Gosteli
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Patent number: 4255585Abstract: The present application relates to benzoheterocyclic derivatives of 2,3-dichlorophenoxyacetic acid, the preparation thereof and pharmaceutical compositions containing them.Type: GrantFiled: October 22, 1975Date of Patent: March 10, 1981Assignee: Centre European de Recherches PharmacologiqueInventors: Germaine Thuillier nee Nachmias, Jacqueline S. Laforest nee Boutillier du Retail, Bernard J. M. Cariou, Pierre A. R. Bessin, Jacqueline S. Bonnet nee Roux, Jean E. Thuillier
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Patent number: 4252739Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yields. The process involves reacting an alkylating agent and an activated methylene compound in the presence of an onium compound, an alkali metal compound and water, which while only necessary in trace amounts can be present in substantial quantities.Type: GrantFiled: August 20, 1979Date of Patent: February 24, 1981Assignee: Emery Industries, Inc.Inventors: Richard G. Fayter, Jr., John F. White, Eugene G. Harris
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Patent number: 4233206Abstract: A process for the production of a colored polyolefin molded articles comprising adding to a polyolefin either a compound of the formula D--CH.sub.2 O.OC--R]).sub.n as a colorant wherein D is the residue of a common organic pigment, R is an alkyl, alkenyl or aryl group having up to 20 carbon atoms and n is an integer of 1-4, or a mixture of the compound of the above formula with at least one usual pigment, to form a mixture, and then molding the mixture thereby producing the desired colored articles. This invention also relates to the compound of said formula and to a mixture thereof with at least one common pigment.Type: GrantFiled: November 6, 1975Date of Patent: November 11, 1980Assignee: Toyo Ink Manufacturing Co., Ltd.Inventors: Hiromitsu Katsura, Morihiko Endo, Takashi Kanno
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Patent number: 4229583Abstract: Thioindigo and its derivatives are obtained in high yield and excellent purity by oxidizing corresponding 3-hydroxythionaphthenes with peroxo-disulfate in an aqueous alkaline solution.Type: GrantFiled: November 13, 1978Date of Patent: October 21, 1980Assignee: Hoechst AktiengesellschaftInventors: Ernst Spietschka, Manfred Urban
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Patent number: 4219658Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is an optionally halo-substituted hydrocarbyl group, and X is --C(O)Cl, --C(O)Br or C(O)OR in which R is H, a salt-forming cation, an alkyl group or the residue of a pyrethroid alcohol are new pesticides or intermediates therefore. The compounds are prepared using a multi-step synthesis starting from the natural terpene, 3-carene.Type: GrantFiled: July 26, 1979Date of Patent: August 26, 1980Assignee: Shell Oil CompanyInventor: Steven A. Roman
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Patent number: 4219562Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is an optionally halo-substituted hydroxcarbyl group, and X is --C(O)Cl, --C(O)Br or C(O)OR in which R is H, a salt-forming cation, an alkyl group or the residue of a pyrethroid alcohol are new pesticides or intermediates therefore. The compounds are prepared using a multi-step synthesis starting from the natural terpene, 3-carene.Type: GrantFiled: March 8, 1979Date of Patent: August 26, 1980Assignee: Shell Oil CompanyInventor: Steven A. Roman
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Patent number: 4187234Abstract: Compounds of the formula ##STR1## in which Ar represents optionally substituted 1,2-phenylene, X.sub.1 represents oxygen or sulphur, R.sub.1 represents the radical of the formula ##STR2## in which Ph represents optionally substituted phenylene, X.sub.2 represents oxygen or sulphur, R.sub.3 and R.sub.4 independently of one another denote hydrogen or alkyl and R.sub.5 represents optionally etherified hydroxyl or optionally substituted amino and in which R.sub.2 denotes hydrogen, lower alkyl or the radical of the formula Ia and one of the groups R.sub.1 and R.sub.2 takes up the 2-position and the other takes up the 3-position, and salts of such compounds having salt-forming groups, e.g. ethyl 2-[4-(2-benzofuranyl)-phenoxy]-heptanoate. These compounds may be used as fibrinolytic and thrombolytic agents.Type: GrantFiled: August 4, 1978Date of Patent: February 5, 1980Assignee: Ciba-Geigy CorporationInventors: Raymond Bernasconi, Pier G. Ferrini
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Patent number: 4183842Abstract: A method for clear-coloring of linear aromatic polyesters, which comprises mixing at least one pigment selected from the group consisting of a pigment of the formula ##STR1## and pigments of the formula ##STR2## wherein X.sub.1 and X.sub.2 represent a hydrogen atom, a chlorine atom or a methyl group, and X.sub.3 represents a chlorine atom or a methyl group, with a linear aromatic polyester, and heating the mixture to the melting temperature of the polyester to dissolve or substantially dissolve the pigment in the polyester.Type: GrantFiled: July 18, 1977Date of Patent: January 15, 1980Assignee: Dainippon Ink & Chemicals, Inc.Inventors: Seibei Ono, Kouichi Shibuya, Hiroshi Marikawa