Two Aryl Rings Or Ring Systems Bonded Directly To The Same Carbon Patents (Class 564/315)
  • Patent number: 4912262
    Abstract: According to the present invention there is provided process for preparing a compound of formula (I): ##STR1## or a salt, acylate or sulphonate derivative thereof; wherein R.sup.1 is an optionally substituted aryl group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are selected from hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkanoyl or --CO.sub.2 R.sup.a wherein R.sup.a is C.sub.1-4 alkyl or R.sup.2 and R.sup.3 or R.sup.4 and R.sup.5 together with the carbon atom to which they are attached form a C.sub.3-6 cycloalkyl ring, provided that at least R.sub.2 and R.sup.3 or R.sup.4 and R.sup.5 are not both hydrogen and that not more than two of R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are C.sub.1-4 alkanoyl or --CO.sub.2 R.sup.a ; which process comprises reacting a compound of formula (II): ##STR2## wherein R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as defined in relation to formula (I) with a compound of formula (III):R.sup.1 COCN (III)wherein R.sup.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: March 27, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventor: Glynn Mitchell
  • Patent number: 4898941
    Abstract: A process for preparing a diphenylalkene derivative of the formula [II] ##STR1## which comprises oxidizing a diphenylalkanoic acid derivative of the formula [I] ##STR2## wherein R.sub.1 and R.sub.2 are each substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aralkyl or substituted or unsubstituted aryl, R.sub.1 and R.sub.2 may form a heteroring together theirwith or with an adjacent benzene ring, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 are each hydrogen atom, halogen atom, substituted or unsubstituted alkyl, substituted or unsubstituted hydroxyl or substituted or unsubstituted amino, R.sub.12 and R.sub.13 are each hydrogen atom or substituted or unsubstituted alkyl, X is carboxyl, amide, ester or halide thereof.
    Type: Grant
    Filed: August 11, 1987
    Date of Patent: February 6, 1990
    Assignee: Kanzaki Paper Manufacturing Co., Ltd.
    Inventors: Nobuo Kanda, Haruo Omura, Yukihiro Abe, Mitsuru Kondo
  • Patent number: 4892973
    Abstract: Disclosed herein is a novel process for producing 1,1-diphenylalkenes, comprising contacting lead peroxide with 1,1-diphenylalkanes having the structure wherein a nitrogen atom of a tertiary amino group is bonded to the para-position of each of the two benzene rings of the 1,1-diphenylalkane, thereby obtaining the corresponding 1,1-diphenylalkenes.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: January 9, 1990
    Assignee: Yamada Chemical Co., Ltd.
    Inventors: Kozo Mizuno, Hideaki Fujisaki, Yoshinori Uda, Tadashi Imai, Katsuhiko Tsunemitsu
  • Patent number: 4892949
    Abstract: An electrophotograhic photoconductor is disclosed which comprises an electroconductive support material and a photosensitive layer comprising at least one of the stilbene compounds of the formula ##STR1## wherein R.sup.1 represents hydrogen or ##STR2## R.sup.2 represents hydrogen, an alkyl group or a substituted or unsubstituted phenyl group; A represents ##STR3## when R.sup.1 is hydrogen; while when R.sup.1 is ##STR4## A represents ##STR5## a 9-anthryl group or a substituted or unsubstituted N-alkylcarbazolyl group, wherein R.sup.3 represents hydrogen, an alkyl group, an alkoxy group, a halogen or a substituted amino group represented by ##STR6## in which R.sup.4 and R.sup.5 independently represent an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group, and R.sup.4 and R.sup.5 may form a ring in combination, and m is an integer of 0 through 3 and n is an integer of 0 or 1, provided that, when R.sup.1 is hydrogen and n=0, A is ##STR7## in which R.sup.
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: January 9, 1990
    Assignee: Ricoh Company, Ltd.
    Inventor: Masaomi Sasaki
  • Patent number: 4889955
    Abstract: ar-(Hydrocarbylthio)aromatic amines, such as (alkylthio) anilines, are prepared by heating one or more other ar-(hydrocarbylthio)aromatic amines in the presence of a catalyst, such as aluminum chloride, to redistribute the hydrocarbylthio groups with little or no co-formation of secondary or tertiary amines. The amine starting material is one or more primary aromatic amines having at least one free ring position and at least one hydrocarbylthio substituent in a ring position other than a meta-position.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: December 26, 1989
    Assignee: Ethyl Corporation
    Inventor: Paul F. Ranken
  • Patent number: 4876377
    Abstract: This invention pertains to an improved process for the alkylation of aromatic amines. The improvement resides in the use with particular aromatic amines and olefins a catalyst which is a highly acidic partially dealuminated zeolite having an increased silica to alumina molar ratio over the original zeolite and an acidity factor of at least 0.3. The partially dealuminated zeolites are preferably exchanged with hydrogen or rare earth metal and are particularly effective for producing an alkylated aromatic amine where the alkyl group is ortho to the amine. The highly acidic partially dealuminated H-mordenite and partially dealuminated HY faujasite are very effective for the alkylation of aniline with propylene.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: October 24, 1989
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Rakesh Agrawal, Steven R. Auvil, Michel Deeba
  • Patent number: 4853442
    Abstract: Novel sulfur containing polyarylene polyether oligomers are disclosed. The oligomers are prepared through condensing salts of hydroxy and/or thio aromatic compounds, halobenzenoid compounds bearing two replaceable halogens and metal or ammonium sulfides following by end capping the resultant oligomer intermediate with a salt of a hydroxy and/or thio aromatic compound.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: August 1, 1989
    Assignee: Hercules Incorporated
    Inventor: Tuyen T. Nguyen
  • Patent number: 4833164
    Abstract: 2-Substituted-1-naphthols are 5-lipoxygenase inhibitors which make them useful in the treatment of inflammation, obstructive lung diseases and/or psoriasis. Useful 2-substituent groups are alkyls, alkenyls, alkynyls, cycloalkyls, cycloalkenyls, the groups CH.sub.2 --C.tbd.C--(CH.sub.2).sub.m R.sup.5 and CH.dbd.CH--(CH.sub.2).sub.n R.sup.5 (where m is 1-4, n is 0-3 and R.sup.5 includes phenyl, COOR.sup.9, where R.sup.9 is H or alkyl of 1-4 carbons, AR.sup.6 (where A is a methylene chain and R.sup.6 is a variety of groups including Cl, Br, I, CHO, CN, COOR.sup.9, NH.sub.2, SC(NH)NH.sub.2, phenyl, P(O)(OR.sup.9).sub.2, etc.), and CHR.sup.7 R.sup.21 (where R.sup.7 is a variety of aromatic and heterocyclic groups and R.sup.21 is H, optionally substituted phenyl and a variety of heterocyclic groups).
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: May 23, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Douglas G. Batt
  • Patent number: 4808754
    Abstract: Cyclic polyamide oligomers are prepared by the reaction of various spirobiindane diamines, including spirobiindane bisphenol bis-aminophenoxy ethers, with dicarboxylic acid chloride such as isophthaloyl chloride. The oligomer compositions may be converted to copolyamides by reaction with lactams in the presence of basic reagents.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: February 28, 1989
    Assignee: General Electric Company
    Inventors: Thomas L. Guggenheim, Joseph W. Guiles, Sharon J. McCormick
  • Patent number: 4792623
    Abstract: Novel meta phenylenediamines are provided having one or two particular benzyl radicals as substituents along with other optional substituents on the aromatic diamine ring and optionally substituents on the benzyl aromatic ring.The diamines are sterically hindered and thereby have lower amine reactivity as compared with the unsubstituted diamines.The diamines are useful as curing agents for epoxy resins and find particular utility as extenders in the formation of novel polyurethane-polyurea polymers.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: December 20, 1988
    Assignee: The Dow Chemical Company
    Inventor: Kwok K. Sun
  • Patent number: 4788336
    Abstract: In accordance with the present invention there is provided an organic compound having the formula selected from the group consisting of: ##STR1## wherein x is an integer from 0 to 2, y is an integer from 1 to 6, and z is an integer from 0 to 2; ##STR2## wherein L is aliphatic, alicyclic or aromatic and a is an integer from 2 to 6; and wherein G has the formula ##STR3## wherein n is an integer from 0 to 6 and Q.sub.1, Q.sub.2, Q.sub.3, Q.sub.5, Q.sub.6, and Q.sub.7, which may be the same or different, represent H or CH.sub.3, and Q.sub.4 represents H or CH.sub.3 when x and z are 0 or n is greater than 0, or Q.sub.4 represents CH.sub.3 when x or z are 1 or 2 and n is 0.The compounds, which exhibit unexpectedly high T.sub.g and unexpectedly high resistance to oxidation, are useful in electrophotographic elements.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: November 29, 1988
    Assignee: Eastman Kodak Company
    Inventor: Norman G. Rule
  • Patent number: 4783547
    Abstract: The difunctional polyfluoroaromatic compounds represented by the formula ##STR1## wherein X and Y are identical and are selected from the class consisting of --COOR.sup.1, --CH.sub.2 NH.sub.2, --CH.sub.2 NCO and ##STR2## wherein R.sup.1 is --H, alkyl and R.sup.2 and R.sup.3 independently are either --H, X or alkyl and n is either 0 or 1 are disclosed. These compounds are derived from those wherein X and Y are --CN which are produced in a solvent specific reaction. The process comprises reacting pentafluorobenzonitrile with a Grignard reagent of the formula CH.sub.3 MgHal, wherein Hal is --Cl or --Br, in the presence of either tetrahydrofuran, 1,3-dioxolane, dimethoxyethane or diglyme. When the solvent employed is tetrahydrofuran, the cyano compound wherein n is 1 is obtained. When the solvent is 1,3-dioxolane, the cyano compound wherein n is 0 is obtained.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: November 8, 1988
    Assignee: ICI Americas Inc.
    Inventors: Ludwig A. Hartmann, John F. Stephen
  • Patent number: 4777296
    Abstract: Styryl derivatives of the formula ##STR1## and an electrophotographic photoconductor comprising an electroconductive support material and a photosensitive layer comprising at least one styryl derivative of the same formula are disclosed, in which R.sup.1 is selected from the group consisting of an alkyl group, a substituted alkyl group, an aryl group and substituted aryl group; R.sup.2 is selected from the group consisting of hydrogen, an alkyl group, a substituted alkyl group, an aryl group and a substituted aryl group; and Ar represents an aryl group or a substituted aryl group.
    Type: Grant
    Filed: April 29, 1986
    Date of Patent: October 11, 1988
    Assignee: Ricoh Company, Ltd.
    Inventor: Masaomi Sasaki
  • Patent number: 4774359
    Abstract: The synthesis and characterization of several polyenamine ketones are discussed wherein conjugated diacetylenic diketones and aromatic diamines are used as a route to the formation of high molecular weight polyenamine ketones which exhibit good mechanical properties and can be cast into creasible films. Typical polymerization conditions involved the reaction of stoichiometric amounts of 1,4- or 1,3-PPPO and a diamine at 60.degree.-130.degree. C. in m-cresol at (w/w) solids content of 8-26% for a specified period of time under a nitrogen atmosphere. Novel polyenamine ketones were prepared with inherent viscosities as high as 1.99 dl/g and tough, clear amber films with tensile strengths of 12,400 psi and tensile moduli of 397,000 psi were cast from solutions of the polymers in chloroform. The polymers exhibited T.sub.g s as high as 235.degree. C. and weight losses of 14% after aging at 232.degree. C. in circulating air for sixty hours.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: September 27, 1988
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Paul M. Hergenrother, Robert G. Bass, Mark S. Sinsky, John W. Connell
  • Patent number: 4769302
    Abstract: A photosensitive member according to the present invention comprises an electrically conductive substrate and a photosensitive layer comprising a binder resin and a styryl compound dispersed therein and represented by the general formula (I), ##STR1## wherein R.sub.1, R.sub.3 and R.sub.5 each represent hydrogen or an alkyl, aryl, aralkyl or heterocyclic group, the aryl, aralkyl and heterocyclic groups having or not having a substituent, R.sub.2, R.sub.4 and R.sub.6 each represent a substituted or unsubstituted aryl, aralkyl or heterocyclic group, R.sub.1 and R.sub.2, R.sub.3 and R.sub.4, and R.sub.5 and R.sub.6 taken together form a ring, and R.sub.7, R.sub.8 and R.sub.9 each represent hydrogen or an alkyl, alkoxyl, aralkyl or aryl group.A photosensitive member of this structure exhibits high sensitivity, is outstanding in the ability to retain charges and in charge transporting ability and less prone to deterioration when repeatedly used.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: September 6, 1988
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Hideaki Ueda
  • Patent number: 4760185
    Abstract: m-Phenylenediamines are alkylated in the orthoposition by heating them with an Al/Zn alloy and aluminium chloride, and reacting them with lower alkenes at elevated pressures and temperatures when the evolution of hydrogen is complete.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: July 26, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventor: Hans-Joachim Becker
  • Patent number: 4760184
    Abstract: This invention relates to a process for producing ring alkylated aromatic amines. In accordance with this process an aromatic amine is reacted with an olefin, diolefin or an alcohol using a non-zeolitic molecular sieve as a catalyst. Under the conditions of the process the catalyst is extremely active, and with aromatic amines that are capable of alkylation at the ortho and para positions, high selectivity to the ortho alkylated isomer can be achieved.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: July 26, 1988
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Ronald Pierantozzi
  • Patent number: 4740620
    Abstract: This invention relates to a process for producing ring alkylated aromatic amines. In the process an aromatic amine is reacted with an olefin using an acidic crystalline molecular sieve as a catalyst. Under the conditions of the process the catalyst is extremely active and with amines that are capable of alkylation at the ortho and para positions, high selectivity to the ortho alkylated isomer can be achieved.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: April 26, 1988
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Dale D. Dixon, William F. Burgoyne, Jr.
  • Patent number: 4731423
    Abstract: Titled materials and their preparation. The materials contain a moiety such as, for example, 4-oxy-3,5-dimethyl-2,6-dibromobenzyl which can impart a high degree of thermal and hydrolytic stability to the materials, for example, epoxy thermosets such as in electronic encapsulations. For example, when used in electronic encapsulation formulations, these materials can provide a substantial increase in electronic device reliability. Their preparation involves an alkylation of an aromatic ring, for example, such as a Friedel-Crafts alkylation with 4-bromomethyl-3,5-dibromo-2,6-dimethylphenol or with 4-hydroxymethyl-3,5-dibromo-2,6-dimethylphenol.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: March 15, 1988
    Assignee: The Dow Chemical Company
    Inventors: Abel Mendoza, Chun S. Wang, Eric E. Bancroft, David B. Fritz
  • Patent number: 4720584
    Abstract: Nitro-isopropenyldiphenyl ethers are provided which can serve as a useful source of known monomer intermediates or as intermediates for the preparation of nitro-haloisopropyl substituted diphenyl ethers. The latter have been discovered to act as facile alkylating agents with phenols providing nitro-p-hydroxyphenylisopropyl substituted diphenyl ethers. When the latter compounds are reduced there are obtained the corresponding amino-p-hydroxyphenylisopropyl substituted diphenyl ethers.The polymerization of this last class of compounds with acid halides provides polyamide-esters. The polymers can be used in the manufacture of such articles as tubing, hose, bellows hose, and the like.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: January 19, 1988
    Assignee: The Dow Chemical Company
    Inventor: Shenghong A. Dai
  • Patent number: 4714778
    Abstract: This invention relates to a class of alkenylated toluenediamines having at least one alkenyl group ortho to an amine group. More particularly the toluenediamines are represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are hydrogen, C.sub.1-3 aliphatic, phenyl, halogen or alkoxy radicals, or R.sub.2 and R.sub.4 or R.sub.5 are bridged via an alkylene radical --(CH.sub.2).sub.y -- wherein y=2 to 5, and x is one or two provided that in said formula at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4 or R.sub.5 is C.sub.1 or greater.The above described alkenylated toluenediamines have been found to be well suited as antioxidants and as tri- and tetra functional chain extenders in forming polyurethane/urea elastomers systems and for providing pendant unsaturation for post curing and polymerization.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: December 22, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventors: William F. Burgoyne, Jr., Dale D. Dixon
  • Patent number: 4656192
    Abstract: 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: Grant
    Filed: June 14, 1984
    Date of Patent: April 7, 1987
    Assignee: Mect Corporation
    Inventor: Masatoshi Yamato
  • Patent number: 4618727
    Abstract: Nitro-isopropenyldiphenyl ethers are provided which can serve as a useful source of known monomer intermediates or as intermediates for the preparation of nitro-haloisopropyl substituted diphenyl ethers. The latter have been discovered to act as facile alkylating agents with phenols providing nitro-p-hydroxyphenylisopropyl substituted diphenyl ethers. When the latter compounds are reduced there are obtained the corresponding amino-p-hydroxyphenylisopropyl substituted diphenyl ethers.The polymerization of this last class of compounds with acid halides provides polyamide-esters. The polymers can be used in the manufacture of such articles as tubing, hose, bellows hose, and the like.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: October 21, 1986
    Assignee: The Dow Chemical Company
    Inventor: Shenghong A. Dai
  • Patent number: 4532350
    Abstract: Process for the selective preparation of metachloroanilines.It is carried out by the hydrodechlorination of polychloroanilines or polychloronitrobenzenes with hydrogen, in the liquid phase and in an acid medium, under the action of heat and under pressure, in the presence of a noble metal used in association with a heavy metal.These meta-chloroanilines are intermediates especially for active plant-protection substances.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: July 30, 1985
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Georges Cordier, Pierre Fouilloux
  • Patent number: 4418213
    Abstract: Process for the selective preparation of meta-chloroanilines.It is carried out by the hydrodechlorination of polychloroanilines or polychloronitrobenzenes with hydrogen, in the liquid phase, under the action of heat, at atmospheric pressure or under pressure, in the presence of a noble metal, in an anhydrous organic medium and in the presence of a Lewis acid.These meta-chloroanilines are intermediates especially for active plant-protection substances.
    Type: Grant
    Filed: July 14, 1981
    Date of Patent: November 29, 1983
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Georges Cordier, Pierre Fouilloux
  • Patent number: 4374272
    Abstract: A process for preparing 2-(4'-hydroxyaryl)-2-(4'-aminoaryl)-propanes of the general formula ##STR1## wherein R represents a hydrogen or halogen atom or an alkyl, aryl, nitro, nitrile, acyl, acyloxy or amino group, R.sup.1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 and R.sup.3, independently from each other, represent a hydrogen or halogen atom, a nitro group or an alkyl group having 1 to 4 carbon atoms,which comprises reacting (A) at least one isopropenyl phenol compound selected from the group consisting of isopropenyl phenol derivatives of the general formula ##STR2## wherein R is as defined, and di- to eicosa-mers of said isopropenyl phenol derivatives with (B) an aromatic amine of the general formula ##STR3## wherein R.sup.1 , R.sup.2 and R.sup.3 are as defined, in the presence of 0.00001 to 0.008 mole, per mole of said isopropenylphenol compound (A) calculated as a monomer, of a acid catalyst and in the presence or absence of a phenolic solvent.
    Type: Grant
    Filed: November 7, 1979
    Date of Patent: February 15, 1983
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Teruo Yuasa, Noboru Yamazaki, Yoshio Morimoto
  • Patent number: 4351959
    Abstract: A process for the dechlorination of aromatic nitro or amino compounds consists in reacting anilines or nitrobenzenes which are polysubstituted by chlorine, with hydrogen, under the action of heat, in the presence of iodide or bromide ions, in the liquid phase and at low pressure.The process makes it possible selectively to obtain anilines which are chlorine-substituted in the meta-position.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: September 28, 1982
    Assignee: Rhone-Poulenc Agrochimie
    Inventor: Georges Cordier
  • Patent number: 4348335
    Abstract: Polynitrated diaryl compounds of the formula given in the description are reduced with 1-2 mols of sulphides, or compounds which donate sulphide ions, per mol of nitro group in the presence of 0.5-10 mols of ammonia per mol of starting compound at 30.degree.-110.degree. C. to give nitroamino-diaryl compounds, for example 4,4'-dinitro-dibenzyl-2,2'-disulphonic acid is reduced to 4-nitro-4'-amino-stilbene-2,2'-disulphonic acid.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: September 7, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Linhart, Dieter Pawellek, Harald Gleinig
  • Patent number: 4340759
    Abstract: A process for the dechlorination of aromatic nitro or amino compounds consists in reacting anilines or nitrobenzenes which are polysubstituted by chlorine, with hydrogen, under the action of heat, in the presence of cations (Bi, Pb, Sn, Tl, Hg and Ag), in the liquid phase and at low pressure.The process makes it possible selectively to obtain anilines which are chlorine-substituted in the meta-position.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: July 20, 1982
    Assignee: Rhone-Poulenc Agrochimie
    Inventor: Georges Cordier
  • Patent number: 4324914
    Abstract: A process for the dechlorination of aromatic nitro or amino compounds comprising reacting anilines or nitrobenzenes, which are polysubstituted by chlorine, with hydrogen, under the action of heat, in the presence of an excess of chloride ions, in the liquid phase and at low pressure.The process makes it possible selectively to obtain anilines which are chlorine-substituted in the meta-position.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: April 13, 1982
    Assignee: Rhone-Poulenc Agrochimie
    Inventor: Georges Cordier
  • Patent number: 4322442
    Abstract: 1-Halo-1-propyn-3-ols of the formula ##STR1## in which R is optionally substituted phenyl, pyridyl, furyl, thienyl or pyrazolyl,R' is optionally substituted phenyl, andX is halogen,which possess fungicidal properties.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: March 30, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Jager, Erich Klauke, Wilhelm Brandes, Paul-Ernst Frohberger
  • Patent number: 4314086
    Abstract: Aliphatic/aromatic ethers are prepared by reacting an aliphatic halide with either an alkali or alkaline earth metal, or ammonium phenolate or naphtholate, in an inert organic solvent, and in the presence of at least one tertiary amine sequestering agent having the formula:N--CHR.sub.1 CHR.sub.2 --O--CHR.sub.3 --CHR.sub.4 --O--.sub.n R.sub.5 ].sub.
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: February 2, 1982
    Assignee: Rhone-Poulenc Industries
    Inventors: Gerard Soula, Daniel Michelet
  • Patent number: 4289907
    Abstract: This invention relates to a process of preparing N-alkyl-nitroanilines selected from the group consisting of N-alkyl-mononitroanilines and N-alkyl-dinitroanilines by the O-alkylation of a nitrophenol to produce the corresponding alkoxy derivative, followed by reaction of the alkoxy derivative with alkylamine to produce the desired N-alkyl-nitroaniline.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: September 15, 1981
    Assignee: Union Carbide Corporation
    Inventor: John K. Chan
  • Patent number: 4279637
    Abstract: This invention discloses chemical compounds of the formula ##STR1## wherein X and Z are each independently selected from the group consisting of halogen, haloalkyl, nitro, cyano, alkyl, alkoxy and alkylthio; m and n are each independently integers of from 0 to 4; Y is selected from the group consisting of oxygen, sulfur, methylene, sulfonyl and sulfinyl; and R is selected from the group consisting of hydrogen, alkyl and alkoxy. The compounds of the above description are useful as herbicides.
    Type: Grant
    Filed: May 29, 1980
    Date of Patent: July 21, 1981
    Assignee: Velsicol Chemical Corporation
    Inventor: Frank Wu
  • Patent number: 4263456
    Abstract: Styrenated diphenylamine is prepared by reacting styrene with diphenylamine in the presence of undried acidic clay catalyst.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: April 21, 1981
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Edward A. Rogers, Jr.
  • Patent number: 4257954
    Abstract: Mono and bis substituted (arylsulfonyl)alkanes useful as color formers, particularly in carbonless duplicating and thermal marking systems, are prepared by the interaction of the appropriate aldehyde or dialdehyde with the appropriate aryl or heterocyclic moiety and the appropriate phenylsulfinic acid in the presence of a catalyst.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: March 24, 1981
    Assignee: Sterling Drug Inc.
    Inventors: Paul J. Schmidt, William M. Hung
  • Patent number: 4231757
    Abstract: Nitrogen-containing compositions made by condensing a nitro phenol with an organic amino compound having at least one hydrogen atom directly bonded to a nitrogen or oxygen atom are useful as additives for lubricants and fuels. A specific embodiment comprises compositions made by reacting nitro phenols having hydrocarbyl substituents of up to 750 aliphatic carbon atoms with alkylene polyamines.
    Type: Grant
    Filed: June 2, 1978
    Date of Patent: November 4, 1980
    Assignee: The Lubrizol Corporation
    Inventor: Kirk E. Davis