Synthesis of 2,2-difluoro-homoallylic alcohols <i>via</i> ring-opening of <i>gem</i>-difluorocyclopropane and aerobic oxidation by photo-irradiation in the presence of an organic pigment

Abstract

We found that aerobic oxidation took place after the visible light-mediated ring-opening reaction of gem-difluorocyclopropane in the presence of an organic dye and amine to furnish 2,2-difluoro-homoallylic alcohols in good yields.