Intramolecular cyclization of enyne [3] cumulenals

JG Garcia, B Ramos, LM Pratt, A Rodríguez

Index: Garcia, J. Gabriel; Ramos, Bethzaida; Pratt, Lawrence M.; Rodriguez, Augusto Tetrahedron Letters, 1995 , vol. 36, # 41 p. 7391 - 7394

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Citation Number: 56

Abstract

Enyne [3] cumlenals have been shown to undergo a Bergman cyclization or an intramolecular [2+ 2] cycloaddition depending on the nature of substituents on the yne carbon. A hydrogen substituted [3] cumulenal is cleanly converted to a naphthalene product while a trimethylsilyl substituted substrate produces a cyclobutene product.