n-Butylammonium carboxylates/Tf2O: ionic liquid based systems for the synthesis of unsymmetrical imides via a Ritter-type reaction
摘要:
We have developed a new method for the preparation of unsymmetrical imides using liquid carboxylate salts via a Ritter-type process. The reactions were carried out with nitriles and n-butylammonium carboxylates as ionic liquids in the presence of triflic anhydride (Tf2O) as the promoter. Mild reaction conditions, simplicity of the procedure, and proton-free conditions are the main advantages of this procedure. (C) 2012 Elsevier Ltd. All rights reserved.
N-(alpha-alkylbenzylidene)-alpha-phenylalkylamine, its use and process for producing the same and process for producing intermediate therefor
申请人:SUMITOMO CHEMICAL COMPANY LIMITED
公开号:EP0735018A1
公开(公告)日:1996-10-02
There is disclosed an N-(α-alkylbenzylidene)-α-phenylalkylamine represented by the general formula (1):
wherein R1 represents a lower alkyl group, R2 represents a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group and X represents a halogen atom or a lower alkoxy group, its use and a process for producing the same and processes for producing intermediates therefor.