Title:
【発明の名称】ウレタンと炭酸エステルの製造法
Document Type and Number:
Japanese Patent JPH0830038
Kind Code:
B2
Abstract:
PURPOSE:To obtain the titled compound useful as an intermediate for producing isocyanate efficiently, industrially and advantageously without causing toxicity and by-products, by using an inexpensive catalytic system consisting essentially of copper and reacting a primary amine with CO and molecular oxygen, etc. CONSTITUTION:A primary amine (e.g. aniline or 1,2-diaminobenzene) is reacted with carbon monoxide, molecular oxygen and a hydroxyl group-containing organic compound (e.g. methanol, ethanol or n-propanol) in the presence of a catalytic system comprising one selected from copper and a copper-containing compound (e.g. copper iodide or copper bromide) and one halogen selected from I, Cl and Br to give urethane and a carbonic acid ester. Since the catalyst is a simple system and contains no different metal, the catalyst is smoothly recovered and reused and this process is advantageous.
Inventors:
Takashi Okawa
Nobuo Isogai
Tomoji Tsuji
Nobuo Isogai
Tomoji Tsuji
Application Number:
JP27832887A
Publication Date:
March 27, 1996
Filing Date:
November 05, 1987
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
C07C269/04; B01J23/72; B01J27/122; C07B61/00; C07C67/00; C07C68/00; C07C69/96; C07C239/00; C07C271/20; C07C271/28; (IPC1-7): C07C69/96; C07C68/00; C07C269/04; C07C271/20; C07C271/28