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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0417947
Kind Code:
B2
Abstract:
A process is disclosed for producing substituted asymmetric ureas, starting from dialkylcarbonates, aromatic amines and aliphatic amines, by a two-step procedure and in the presence of a catalyst selected from among the Lewis' acids and the alkoxides or the hydroxides of alkali metals or alkaline earth metals.

Inventors:
UUGO ROMAANO
JANKARURO FUORUNASAARI
UNBERUTO SUGANBAATO
Application Number:
JP15421783A
Publication Date:
March 26, 1992
Filing Date:
August 25, 1983
Export Citation:
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Assignee:
ENICHEM SINTESI
International Classes:
C07C273/16; A01N47/30; C07C67/00; C07C239/00; C07C273/18; C07C275/28; C07C275/30