Uniroyal Inc.

Uniroyal Chemical Company, Inc.

Harold Greenfield

Russell E Malz, Jr

Roger W Amidon

Robert W Brown

2,2,6,6-tetraalkyl-4-piperidylamines are produced by reacting an amine with a 2,2,6,6-tetraalkyl-4-piperidone in the presence of a catalyst selected from the group consisting of platinum, nickel and cobalt, employing a reaction medium comprising (a) between about 10 and 100 weight percent water and (b) between 0 and about 90 weight percent of a polar organic compound selected from the group consisting of C.sub.1 -C.sub.10 aliphatic alcohols and C.sub.2 -C.sub.6 aliphatic glycols.

Process for the production of 2,2,6,6-tetraalkyl-4-piperidylamines

2,2,6,6-tetraalkyl-4-piperidylamines are produced by reacting an amine with a 2,2,6,6-tetraalkyl-4-piperidone in the presence of a palladium catalyst.

An improved process for preparing diarylamines from alicyclic ketones, a primary aromatic amine, and a hydrogen acceptor, in the presence of a platinum metal catalyst and an acid promoter.

Process for making diarylamines

N-Alicyclic carbamates, useful in making polyurethanes, are prepared by nuclear hydrogenation of an N-aryl carbamate using a group VIII transition metal catalyst. E.g., dimethyl 4,4'-methylenedicarbanilate is contacted with hydrogen and ruthenium catalyst in 2-propanol medium, at 50.degree. C. for 1.3 hours under a pressure of 500-800 psi, to form dimethyl 4,4'-methylenedicyclohexylcarbamate. Acid activation of catalyst is a feature of the invention.

Nuclear hydrogenation of n-aryl carbamates

A process for preparing N'-methylacethydrazide by reacting acethydrazide, a formaldehyde source, and hydrogen in the presence of a palladium catalyst is disclosed.

Process for preparing N'-methyl acethydrazide

Fiber-forming polyamides are made by transamidation of N-alicyclic diamides with dicarboxylic acids. E.g., bis(4-acetamidocyclohexyl)methane and 1,12-dodecanedioic acid are heated together under nitrogen, then under reduced pressure, to produce a fiber-forming polyamide.

Production of fiber-forming polyamides by transamidation of N-alicyclic

A process for preparing N',N'-disubstituted acid hydrazides by reacting N'-monosubstituted acid hydrazides with aldehydes in the presence of hydrogen and a hydrogenation catalyst is disclosed.

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Watertown, CT, United States of America

Harold Greenfield