Preparation of 2-methylenebenzocyclobutenone by the flash vacuum pyrolysis of 3-[(benzoyloxy) methyl] benzofuran

WS Trahanovsky, AN Amah…

Index: Trahanovsky,W.S.; Amah,A.N.; Cassady,T.J. Journal of the American Chemical Society, 1984 , vol. 106, p. 2696

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Citation Number: 6

Abstract

2 3 (35%) stituted methylenecyclobutenones have been prepared by this route, 4 but this route cannot be used to prepare 1. The precursor of 1 would have to be an isobenzofuran which would be too reactive to be pyrolyzed under FVP conditions. In this communication we report the synthesis of 1 by a route involving the FVP of 3 4 (benzoy1oxy) methyl) benzofuran (4).