A novel ring transformation of mesoionic 1,3-oxazolium-5-olates into 5-trifluoroacetylated and 5-perfluoroacylated imidazoles by reaction with amidines
作者:Masami Kawase
DOI:10.1039/c39940002101
日期:——
Treatment of mesoionic 1,3-oxazolium-5-olates with amidines causes a novel ring transformation affording 5-trifluoroacetyl- and 5-perfluoroacyl-imidazoles in moderate yields.