Kinetic of the [2 +3] cycloaddition of Z-C-aryl-N-phenylonitrones with 1-bromo-1-nitroethene

Abstract

Kinetic measurements of the [2+3] cycloaddition reaction between 1-bromo-1-nitroethene and Z-C-aryl-N-phenylnitrones were carried out. Kinetic studies proved that despite the high p-deficiency of the nitroalkene, the reactions proceed according to the concerted mechanism. This is evidenced in particular by the character of the Dimroth-Hammet correlation.