The role of central bond torsional motions in the direct cis⇌ trans-photoisomerization of conjugated dienes

WJ Leigh, JA Postigo

Index: Leigh, William J.; Postigo, J. Alberto Journal of the Chemical Society, Chemical Communications, 1993 , # 24 p. 1836 - 1838

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Citation Number: 2

Abstract

The photochemistry of the E, E-and E, Z-geometric isomers of 1, 2-bis (ethylidene)- cyclopentane and-cyclobutane, and 2, 3-bis (ethylidene) norbornane has been studied in hydrocarbon solution at room temperature; the results are inconsistent with the classical theoretical models for diene cis⇌ trans photoisomerization and ring closure, which assume that both processes involve only simple torsional motions about (one or both of) the ...