Synthesis of cyclic and acyclic imides, sulfonimides, and N-carbobenzyloxyamides by ketene trapping

DI MaGee, M Ramaseshan…

Index: MaGee, David I.; Ramaseshan, Mahesh; Leach, James D. Canadian Journal of Chemistry, 1995 , vol. 73, # 12 p. 2111 - 2118

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Citation Number: 11

Abstract

A convenient and general method for the synthesis of cyclic and acyclic imides, sulfonimides, and N-benzyloxycarbonyl amides via the inter-and intramolecular trapping of ketenes has been developed. Heating the corresponding amido, sulfonamido, and carbamamido ethyl ethynyl ethers at 150° C for 3 h produced the desired compounds in good to excellent yields. Key words: ketenes, imides, sulfonimides, N-benzyloxycarbonyl ...