The Dakin-West Reaction of N-Acylprolines in the Presence of Inorganic Bases: Unexpected Formation of Enol Esters
作者:Masami Kawase、Momoko Saeki、Yuri Hagimoto、Hidemitsu Uno
DOI:10.3987/com-08-s(d)50
日期:——
novel transformation of N-acylprolines (1) to enol esters (2) was realized by utilizing chlorodifluoroacetic or trifluoroacetic anhydrides in the presence of inorganic bases, in which probableintermediates were mesoionic 1,3-oxazolium-5-olates. The structure of the enol ester (2a) was determined by single crystal X-ray analysis.