Unprecedented 1,3-dipolar cycloaddition of azomethine ylides to ester carbonyl
作者:Mikhail S. Novikov、Igor V. Voznyi、Alexander F. Khlebnikov、Jürgen Kopf、Rafael R. Kostikov
DOI:10.1039/b204464a
日期:2002.7.11
Fluorinated azomethine ylides generated by the reaction of difluorocarbene with aryl and alkyl imines of O-acylated salicylaldehyde undergo intramolecular 1,3-dipolarcycloaddition across the estercarbonyl to give 2,8-dioxa-6-azabicyclo[3.2.1]octane derivatives.