Carbon-carbon bond formation by condensation at metal-activated olefins. Regio-and stereoselectivity of cycloaddition reactions

P Lennon, M Rosenblum

Index: Lennon,P.; Rosenblum,M. Journal of the American Chemical Society, 1983 , vol. 105, p. 1233

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Citation Number: 22

Abstract

Abstract: Monodeprotonation of Fp2 ($, q2-1, 7-octadiene)(BF4),[4, Fp= C, H, Fe (CO),] at 0 “C with n-Bu3N leads to the formation of the trans-1, 2-disubstituted cyclopentane complex 6- t as the major product. Evidence is provided that this is the kinetic product. The structure of 6- t is established by degradation to trans-1-methyl-2-vinylcyclopentane and by comparison of this with synthetic material. By contrast, the homologous 1, 8-nonadiene complex 11 is ...