Photochemical transformations of small ring compounds. 112. Photochemistry of cyclopropene derivatives. Formation and intramolecular trapping reactions of …

…, TJ Blacklock, R Loza, R Polniaszek

Index: Padwa, Albert; Blacklock, Thomas J.; Loza, Roman; Polniaszek, Richard Journal of Organic Chemistry, 1980 , vol. 45, # 11 p. 2181 - 2189

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Citation Number: 11

Abstract

The intramolecular photocycloaddition reactions of a number of 3-allyl-substituted diphenylcyclopropenes have been studied. Photodimerization occurred when 1, 2-diphenyl- 3-allylcyclopropene was irradiated in benzene. The photodimerization reaction was shown to be derived from the triplet state since the photodimer could be quenched when the irradiation was carried out in the presence of piperylene. The major product formed under ...