Process for the production of urethanes

Details Process for the production of urethanes Process for the production of urethanes

B - Operations, Transporting

01

J

260/468.5

B01J 31/04 (2006.01) B01J 27/02 (2006.01) B01J 31/02 (2006.01)

Patent

CA 1133928

Mo-2031 LeA 19,439 A PROCESS FOR THE PRODUCTION OF URETHANES ABSTRACT OF THE DISCLOSURE A process for producing urethanes by reacting aromatic amino compounds with aliphatic, cycloaliphatic or araliphatic alcohols and carbon monoxide under conditions of elevated temperature and pressure characterized in that the reaction takes place in the presence of (a) selenium, selenium compounds, sulfur and/or sulfur compounds, (b) aromatic nitro compounds, (c) tertiary organic amines and/or alkali metal salts of weak acids, (d) oxidizing agents of a specified group and, optionally (e) ammonia and/or aliphatic, araliphatic, cycloaliphatic or heterocyclic amines containing at least one hydrogen atom bound to an amine nitrogen. LeA 19,439

345676

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