Photochemistry of b-(2-Furyl) Substituted o-Divinylbenzenes

Abstract

Irradiation of the benzene solution of l-(2-vinylpheny1)-2-(2-furyllethenes (71 resulted in the formation of furo(3.2-bl-6.7benzobicyclo[3.2.llocta-2,6-dienes (101 as the main product.The structure of the products was determined by spectroscopic data.Intramolecular photochemical cycloadditions of o-divinylbenzene (1) and its derivatives containing alkyl and/or aryl substituents at any of the double bond