Beckmann fragmentation of diphenylcarbamoylated N-aryldiphenacylamine dioximes. New method for the synthesis of imidazooxadiazolones

Coskun N., Tat F., Guven O.

SYNTHETIC COMMUNICATIONS, vol.29, no.22, pp.3889-3894, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 22
  • Publication Date: 1999
  • Doi Number: 10.1080/00397919908085909
  • Journal Name: SYNTHETIC COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3889-3894
  • Bursa Uludag University Affiliated: Yes

Abstract

N-Aryl-N,N-diphenacylamine dioximes were prepared by the reaction of corresponding arylamines with alpha-bromoacetophenone oxime in ethanol-water at room temperature. These compounds reacted with aryl isocyanates in acetonitrile to give imidazooxadiazolones 9. The probable mechanism of the reaction is discussed.