Alkene homologation <i>via</i> visible light promoted hydrophosphination using triphenylphosphonium triflate
Vitalij V. Levin, Alexander D. Dilman
Abstract
A hydrophosphination reaction of alkenes with triphenylphosphonium triflate under photocatalytic conditions is described. The reaction is promoted by naphthalene-fused N-acylbenzimidazole and is believed to proceed through intermediate formation of a phosphinyl radical cation. The resulting phosphonium salts are directly involved in the Wittig reaction leading to homologated alkenes.
Topics & Concepts
TrifluoromethanesulfonateAlkeneChemistryOrganic chemistryPhotocatalysisPhotochemistryCatalysisRadical Photochemical ReactionsCatalytic C–H Functionalization MethodsSulfur-Based Synthesis Techniques