Cycloaddition reactions of methyl 2-N-trifluoroacetyliminotrifluoropropionate

Conclusions The methyl ester of 2-(N-trifluoroacetylimino)trifluoropropionic acid reacts with diazo-alkanes at the isolated C=N bond similarly to azomethines, forming [1+2]- and/or [3+2]-cycloadducts, and with unsaturated donating type compounds as a 1,3-dipolar conjugated system to give products of [2+4]-cycloaddition regio- and stereo-selectively.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 132–136, January, 1988.