Effects of Aryl Substituents on Electron-Transfer-Mediated Photochemical Addition of Alcohol to 1,1,2-Triarylcyclopropanes

Article abstract of DOI:10.1246/bcsj.61.1404

Direct irradiation of 1,1,2-triarylcyclopropanes in alcohol resulted in the formation of all possible products arising from trimethylene biradicals, while DCB-sensitised irradiation gave a novel "anti-Markownikoff" addition product of alcohol almost exclusively.In order to get insight into the nature and fate of intermediates in the reactions, the effects of nucleophiles and aryl substituents are examined.