Synthetic applications of intramolecular insertion in arylcarbenes. VII. Aryl-substituted benzocycloalkenylidenes
WD Crow, U Engkaninan-Low, YT Pang
Index: Crow, Wilfrid D.; Engkaninan-Low, U.; Pang, Y. T. Australian Journal of Chemistry, 1984 , vol. 37, # 9 p. 1915 - 1924
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Citation Number: 10
Abstract
Abstract A series of benzo-fused cyclic carbenes, bearing suitably located alkoxy substituents in the phenyl ring, has been generated in the gas phase and pyrolysed at 250º/0.002-0.40 mm. In all cases, carbene insertion into the adjacent CH bond (Bamford- Stevens insertion) occurs, either exclusively or predominantly, with up to 35% 1, 5 CH insertion in the alkoxy side chain to form peri-fused tricyclic heterocycles.
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