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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6331461
Kind Code:
B2
Abstract:
This invention relates to an improved process for the preparation of urethanes by the reaction of aromatic nitro compounds with alcohols and carbon monoxides in the presence of catalyst systems containing sulphur and/or selenium and/or compounds of these elements.

Inventors:
HANSU YOAHIMU SHORU
ARUMIN TSUENNERU
Application Number:
JP11249079A
Publication Date:
June 23, 1988
Filing Date:
September 04, 1979
Export Citation:
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Assignee:
BAYER AG
International Classes:
B01J31/02; B01J31/00; C07B61/00; C07C67/00; C07C239/00; C07C269/00; C07C271/06