1266554-70-4Relevant articles and documents
N - substituted carbamic acid ester
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Paragraph 0102, (2017/08/29)
PROBLEM TO BE SOLVED: To provide a method of manufacturing N-substituted carbamate ester with a high yield, a high purity and high efficiency (in a short time) without generation of byproducts.SOLUTION: A method of manufacturing N-substituted carbamate ester from an organic amine, urea and an aromatic hydroxy compound includes a process of supplying a composition containing a carbonic acid derivative and the aromatic hydroxy compound to a bottom part of a reaction apparatus where a synthetic reaction of the N-substituted carbamate ester occurs.
PROCESS FOR THE PREPARATION OF N-SUBSTITUTED CARBAMIC ACID ESTER AND PROCESS FOR THE PREPARATION OF ISOCYANATE USING THE N-SUBSTITUTED CARBAMIC ACID ESTER
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, (2011/06/10)
The present invention provides a method for producing N-substituted carbamic acid-O-aryl ester derived from a compound having an ureido group, the method comprising the step of carrying out esterification or esterification and transesterification from the compound having the ureido group and a hydroxy composition containing one type or a plurality of types of hydroxy compounds.