Abstract: Unsaturated dinitriles are reacted with an aromatic compound such as benzene in the presence of a Lewis acid such as aluminum chloride to yield novel aralkylenedinitriles, such as 5-methyl-5-phenylnonanedinitrile and isomers thereof. The aralkylenedinitriles can be reduced to novel aralkylenediamines or novel cycloalkylalkylenediamines. Polymerization of the aralkylenediamines or cycloalkylalkylenediamines with polycarboxylic acids provides novel polyamides of tough, clear, colorless character.
Abstract: Covers a method of preparing diaminodiphenylmethanes and higher homologues thereof which comprises the step of condensing aniline and formaldehyde in the presence of a molybdenum aluminide catalyst.
Type:
Grant
Filed:
September 24, 1980
Date of Patent:
September 1, 1981
Assignee:
Texaco Inc.
Inventors:
Edward T. Marquis, Robert M. Gipson, Lewis W. Watts, Jr.
Abstract: Novel 2-aryl-1,2-dialkylcycloalkylamines, physiologically tolerable acid addition salts thereof, and a method of preparing the same are described. These compounds are useful as analgesic and diuretic agents.
Type:
Grant
Filed:
February 27, 1978
Date of Patent:
September 1, 1981
Assignee:
American Hoechst Corporation
Inventors:
Grover C. Helsley, Horst Dornauer, Larry Davis
Abstract: Covers a method of preparing diaminodiphenylmethanes and higher homologues thereof which comprises the step of condensing aniline and formaldehyde in the presence of a silver tungstate catalyst.
Abstract: Covers a method of preparing diaminodiphenylmethanes and higher homologues thereof which comprises the step of condensing aniline and formaldehyde in the presence of a tungsten boride or sulfide catalyst.
Type:
Grant
Filed:
September 22, 1980
Date of Patent:
August 18, 1981
Assignee:
Texaco Inc.
Inventors:
Edward T. Marquis, Lewis W. Watts, Jr., Robert M. Gipson
Abstract: Covers a method of preparing diaminodiphenylmethanes and higher homologues thereof which comprises the step of condensing aniline and formaldehyde in the presence of a tungsten silicide catalyst.
Abstract: The present invention provides novel 2-decarboxy-2-hydroxymethyl-19,20-didehydro-13,14-dihydro-PG.sub.1 compounds methods for their preparation and pharmacological use for the induction of prostaglandin-like effect.
Abstract: Substituted N-alkylated aromatic amines are produced by reductively alkylating and dehalogenating the corresponding m-nitrobenzyl halides with pressurized hydrogen in the presence of a ketone and a platinum catalyst.
Abstract: It has been found that bis(2-benzylaminoethyl)-disulfides with the phenyl rings carrying various simple substituents, are highly effective anti-inflammatories and inhibit chemotaxis of human neutrophils.
Abstract: Cyclohexadiene derivatives of the formula ##STR1## wherein R.sup.1,R.sup.2,R.sup.3 and R.sup.4 are as hereinafter set forth, are described. The compounds of formula I are useful as analgesic agents.
Type:
Grant
Filed:
October 4, 1979
Date of Patent:
May 26, 1981
Assignee:
Hoffmann-La Roche Inc.
Inventors:
Peter M. Muller, Rudolf Pfister, Rene Urban
Abstract: Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a nonacidic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a cobalt component, a lanthanide series component and an alkali or alkaline earth component with a porous carrier material in amounts sufficient to result in a composite containing about 0.01 to about 2 wt. % platinum group metal, about 0.05 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % lanthanide series metal and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal.
Abstract: N-substituted-4-(polyfluoro-2-hydroxy-2-propyl)anilines and compounds related thereto, useful as antihypertensive agents, are prepared by reaction of an N-substituted aniline with a polyfluoroacetone.
Abstract: 5,6,7,8-Tetrahydronaphthalenes having the structure ##STR1## and the pharmaceutically acceptable salts thereof, are useful as blood pressure lowering agents. In the above formula R.sub.1 can be hydrogen or alkyl; R.sub.2 is alkyl; R.sub.3 and R.sub.4 can each be hydrogen, hydroxyl, alkoxy, or arylalkoxy, but both cannot be hydroxyl. Those compounds wherein at least one of R.sub.3 and R.sub.4 is other than hydrogen are novel, and constitute a part of this invention.
Type:
Grant
Filed:
November 14, 1977
Date of Patent:
May 12, 1981
Assignee:
E. R. Squibb & Sons, Inc.
Inventors:
Frederic P. Hauck, Christopher M. Cimarusti, Joseph E. Sundeen
Abstract: Insecticidal compounds having the formula: ##STR1## wherein R is halogen (Cl, F, Br), C.sub.1 -C.sub.4 alkyl, NO.sub.2, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, cyano, CF.sub.3, CF.sub.3 O, CF.sub.3 S, ClF.sub.2, CHF.sub.2 O, or CHF.sub.2 S; n is 0, 1, or 2; R.sub.1 is C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.6 cycloalkyl, or C.sub.2 -C.sub.4 alkenyl; and R.sup.2 is hydrogen, cyano, formyl, C.sub.1 -C.sub.4 acyl, C.sub.1 -C.sub.4 carboalkoxy, carbamoyl, N-C.sub.1 -C.sub.4 alkylcarbamoyl, or N,N-di C.sub.1 -C.sub.4 alkylcarbamoyl.
Abstract: Tertiary amines such as alkyl or benzyl amines are catalytically oxidized by oxygen over an activated carbon catalyst to selectively produce secondary amines.
Abstract: A simple process for the preparation of .beta.-aminostyrenes proceeds from anilines by successively diazotizing, reacting with a vinyl ester, and reacting with a secondary amine without purification of the intermediate products. The compounds are reactive enamines useful in organic synthesis.
Abstract: Disclosed is a lubricant composition containing an oil of lubricating viscosity having dispersed therein a particulate hydrated alkali metal borate and an effective amount oil soluble acid which stabilizes the composition against the adverse effects of water contamination.