Complementarity of (4+ 2) cycloaddition reactions and [2, 3] sigmatropic rearrangements in synthesis. New synthesis of functionalized hasubanan derivatives

DA Evans, CA Bryan, CL Sims

Index: Evans,D.A. et al. Journal of the American Chemical Society, 1972 , vol. 94, # 8 p. 2891 - 2892

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Citation Number: 106

Abstract

Sir: Although a number of elegant rearrangements generally classified as [2, 3] sigmatropic processes have recently been reported, the incorporation of this class of reactions into synthetic methodology has been quite limited. 3 The purpose of this communication is to define the complementary nature of certain (4+ 2) cycloaddition and [2, 3] sigmatropic reactions. As illustrated in Scheme I, the merging of these two processes