Cyclobutene photochemistry. Adiabatic photochemical ring opening of alkylcyclobutenes

WJ Leigh, JA Postigo…

Index: Leigh, William J.; Postigo, J. Alberto; Zheng Canadian Journal of Chemistry, 1996 , vol. 74, # 6 p. 951 - 964

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Citation Number: 8

Abstract

The photochemistry of the cis and trans isomers of a series of dimethylbicyclo [n 2.0] alk-(n+ 2)-enes (n= 2-5)(bicyclic cyclobutene derivatives in which the C= C bond is shared by the two rings) in pentane solution is described. Irradiation of these compounds using monochromatic 193-or214-nm light sources results in ring opening to yield the corresponding 1, 2-bis (1-ethylidene) cycloalkanes (C4-C7) in high chemical and ...