Allylic Reactions of Benzocyclopropenes. Discrimination of halogen substituents in 1, 1??Dihalogenobenzocyclopropenes

P Müller, R Etienne, J Pfyffer, N Pineda…

文献索引：Mueller,P. et al. Helvetica Chimica Acta, 1978 , vol. 61, p. 2482 - 2487

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被引用次数: 5

摘要

Abstract Reaction of 1, 1-dichloro-2, 5-diphenylbenzocyclopropene (10a) with 1 equiv. of silver fluoride yields 1-chloro-1-fluoro-2, 5-diphenylbenzocyclopropene (10c). Both 10a and 10c react with excess silver fluoride to give the difluoro compound 10b. Both 10b and 10c are also prepared via cyclo-additions of 1, 2-dichloro-3, 3-difluorocyclopropene (14) or 1, 2, 3-flurocyclopropene (13) with diphenylbutadiene and subsequent aromatization with base ...