Abstract: Liquid distillation residue formed in the phosgenation of polyamines to form polyisocyanates are hydrolyzed to reform the polyamine. The process comprises forming an adduct of the distillation residue with additional polyamine and then hydrolyzing the resulting adduct to convert the adduct to said polyamine.

Abstract: A low temperature and pressure process for preparing rimantadine in high yields from 1-adamantyl methyl ketoxime is provided. The process comprises contacting a solution of the ketoxime with hydrogen in the presence of a platinum on carbon catalyst at a low temperature and pressure, e.g., room temperature and a pressure of about 25-115 psia (170-790 KPa) are preferred.

Abstract: A method for the reduction of nitrogen compounds containing an N--N or N.dbd.N bond, which are soluble in water or lower alcohols, particularly nitrosamines, hydrazines, nitramines, azo- and azoxy-compounds, to the corresponding amines; comprising contacting the nitrogen compounds with a hydroxide solution and a nickel-aluminum alloy in the absence of a hydrogen atmosphere, at room temperature and at atmospheric pressure, for a sufficient time to produce the corresponding amine in a single step.

Abstract: New cyclic keto-butyraldehydes of the formula ##STR1## in which R.sub.1 and R.sub.2 are either identical or different and denote hydrogen or lower alkyl and in which the cycloaliphatic ring may contain a double bond, can be prepared from the corresponding cyclic keto-olefins in the presence of a rhodium-containing catalyst by reaction with carbon monoxide and hydrogen. The new cyclic keto-butyraldehydes can be used in the preparation of diisocyanates which are used as crosslinking agents in the preparation of polyurethanes.

Abstract: This invention relates to the preparation of amines by the reduction of imines with phosphorous acid, preferably under basic conditions.

Abstract: Primary amines and/or diamines can be prepared from oxo compounds, optionally containing additional reducible groups, by a process comprising:(1) reacting the oxo compound with ammonia in the presence of an imine-forming catalyst, preferably an ion exchanger loaded with ammonia ions, at a temperature of 10.degree. to 120.degree. C. and a pressure of 1 to 300 bar, whereby a Schiff base is formed; and(2) reducing the Schiff base by reaction with ammonia and hydrogen in the presence of a hydrogenation catalyst.

Abstract: This invention provides a general method for the conversion of alkenes to primary vicinal diamines by use of a cobalt alkylnitroso complex and reduction with lithium aluminum hydride.

Abstract: This invention relates to a method of synthesizing 3-amino-2-hydroxy-2-cyclopentenones possessing an aliphatic substituent in the 4-position which comprises reacting cyanoacetamide with an aliphatic aldehyde to yield the corresponding .beta.-substituted-.alpha.,.alpha.'-dicyanoglutaramide, hydrolyzing the amide to the corresponding .beta.

Abstract: New biscyclohexylamine derivatives represented by the following formula ##STR1## wherein R.sup.1 to R.sup.4 represent identical or different alkyl groups having 1 to 6 carbon atoms;X is a single bond,a divalent aliphatic straight-chain or branched-chain group having from 2 to 10 carbon atoms,a methylene group, when at least one of the substituents R.sup.1 to R.sup.4 has more than 1 carbon atom,a divalent cycloaliphatic group having from 6 to 12 carbon atoms,a divalent aliphatic straight-chain or branched-chain group with cycloaliphatic substituents having from 6 to 8 carbon atoms,a divalent straight-chain or branched-chain dialkyl cyclohexane group having from 8 to 12 carbon atoms and a divalent straight-chain or branched-chain dialkyl benzene group having from 8 to 12 carbon atoms.

Abstract: A process for prolonging the activity of catalysts during the hydrogenation of unsaturated dinitriles comprising pretreating the dinitrile feed with a crystalline zeolite.

Abstract: New dinitriles are prepared by reacting an alpha, beta saturated nitrile with an alpha, beta unsaturated nitrile. For this preparation subzero temperatures are preferred. Higher diamines can be prepared by hydrogenating the dinitriles thus obtained, such diamines being reacted with a dicarboxylic acid or a salt, ester or chloride of such an acid to prepare polyamides having an amorphous character, i.e. transparent polyamides.

Abstract: Process for hydrogenating unsaturated compounds in the liquid phase in the presence of a soluble catalyst obtained by reacting an organometal derivative or a metal hydride with a synergistic mixture of (a) a compound of zinc, zirconium, manganese, molybdenum, or iron and (b) a nickel or cobalt compound.

Abstract: A novel process is described for the homogeneous hydrogenation of nitriles to primary amines utilizing anionic Group VIII metal hydride compositions as catalysts which contain phosphorus, arsenic or antimony organoligands. Use of these anionic catalysts allows the high yield hydrogenation of nitriles to primary amines to be conducted under mild conditions of temperature and pressure with high selectivity and eliminates the need for the presence of ammonia to suppress the formation of significant amounts of secondary and tertiary amines.

Abstract: Vinyl cyclohexene is reacted with nitrobenzene to produce ethylbenzene, aniline, and styrene at 170.degree. C.-360.degree. C. in the presence of a hydrogen transfer catalyst typified by palladium acetylacetonate optionally containing cobalt acetylacetonate or copper oxide.