Title:
PREPARATION OF URETHANE
Document Type and Number:
Japanese Patent JPS5515416
Kind Code:
A
Abstract:
PURPOSE: To obtain urethane in high yield with a high reaction rate, by reacting an aromatic nitro compound with an alcohol or phenol and carbon monoxide in the presence of a solid catalyst comprising palladium and molybdenum.
CONSTITUTION: An aromatic nitro compound, e.g. 2,4-dinitrotoluene, is reacted with a hydroxyl group-containing organic compound, e.g. ethanol, and carbon monoxide in the presence of a solid catalyst comprising palladium and molybdenum, and a cocatalyst consisting of (a) a tertiary amine, (b) iron or vanadium compound, and (c) chloride ions, to give urethane. The three-or four-component catalyst comprising additionally selenium and/or tellurium permits a reduction in loss by the dissolution in the reaction system.
Inventors:
ONODA TAKESHI
TANO KAZUO
HABU HARUO
TANO KAZUO
HABU HARUO
Application Number:
JP8699078A
Publication Date:
February 02, 1980
Filing Date:
July 17, 1978
Export Citation:
Assignee:
MITSUBISHI CHEM IND
International Classes:
C07B61/00; B01J23/00; B01J23/44; B01J27/00; B01J31/00; B01J31/04; B01J31/16; C07C67/00; C07C239/00; C07C269/00; (IPC1-7): B01J23/44; B01J27/00; B01J31/04; B01J31/16; C07C125/06
Domestic Patent References:
| JPS4725152A | ||||
| JPS51125216A | 1976-11-01 |