PROCESS FOR THE PREPARATION OF N-SUBSTITUTED CARBAMIC ACID ESTER AND PROCESS FOR THE PREPARATION OF ISOCYANATE USING THE N-SUBSTITUTED CARBAMIC ACID ESTER
N-Substituted Carbamic Acid Ester Production Method and Isocyanate Production Method Using the N-Substituted Carbamic Acid Ester
申请人:Miyake Nobuhisa
公开号:US20110160476A1
公开(公告)日:2011-06-30
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.
US8884047B2
申请人:——
公开号:US8884047B2
公开(公告)日:2014-11-11
PROCESS FOR THE PREPARATION OF N-SUBSTITUTED CARBAMIC ACID ESTER AND PROCESS FOR THE PREPARATION OF ISOCYANATE USING THE N-SUBSTITUTED CARBAMIC ACID ESTER