Tetrahedron Letters

A facile and economical procedure for the synthesis of maleimide derivatives using an acidic ionic liquid as a catalyst

K Li, C Yuan, S Zheng, Q Fang

Index: Li, Kai; Yuan, Chao; Zheng, Shijun; Fang, Qiang Tetrahedron Letters, 2012 , vol. 53, # 32 p. 4245 - 4247

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Citation Number: 8

Abstract

Seven maleimide derivatives were synthesized in good yields and high purity from the corresponding maleamic acids using a Brønsted acidic room temperature ionic liquid (RTIL) as a catalyst. The products were obtained through merely a decanting and removal of the solvent, suggesting that this procedure is superior to the conventional routes, in which the strong organic/inorganic acids were used as the catalysts, as well as a complicated post- ...