Login| Sign Up| Help| Contact|

Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0251902
Kind Code:
B2
Abstract:
1. Process for the preparation of urethanes by reacting a) unsubstituted or substituted ureas which do however still contain at least one hydrogen atom attached to a urea nitrogen atom, with b) organic compounds containing at least one hydroxyl group and c) carbon monoxide in the presence of d) molecular oxygen and e) a catalyst system containing at least one noble metal and/or noble metal compound of the eighth sub-group of the periodic system of elements, characterised in that the reaction is carried out in the presence of catalyst systems e) which contain as a further component at least one quinoid compound having oxidizing action and/or at least one compound which can be converted, under the reaction conditions, into a quinoid compound having oxidizing action.

Inventors:
GYUNTAA SHUTAAMAN
ROBERUTO BETSUKAA
YOHAN GUROORITSUHI
HERUMUUTO UARUTOMAN
Application Number:
JP13384382A
Publication Date:
November 08, 1990
Filing Date:
August 02, 1982
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BAYER AG
International Classes:
C07B61/00; A01N47/10; B01J23/00; B01J23/40; B01J23/74; B01J31/00; B01J31/28; C07C67/00; C07C239/00; C07C269/00; C07C269/04; C07C271/06; C07C271/10; C07C271/26; C08G71/04



 
Next Patent: OSCILLATION CIRCUIT