A new and short synthesis of 7H-benzo[a]cyclohepten-7-one and some derivatives: Oxidation of 7-bromo-5H-benzo[a]cycloheptene

Abstract

Oxidation of 7-bromo-5H-benzo[a]cycloheptene with some oxidation reagents has been studied. Several 2,3- and 4,5-benzotropone derivatives has been obtained. The structures of the products were determined by H-1-, (CNMR)-C-13 data and chemical transformation.