Amine–borane complex-initiated SF5Cl radical addition on alkenes and alkynes

Abstract

The SF5Cl radical addition on unsaturated compounds was performed using an air-stable amine–borane complex as the radical initiator. This method showed to be complementary to the classic Et3B-mediated SF5Cl addition on alkenes and alkynes. A total of seven alkene and three alkyne derivatives were tested in the reaction, with yields ranging from 3% to 85%.

Keywords

• amine-borane complex
• pentafluorosulfanyl chloride
• pentafluorosulfanyl substituent
• radical addition
• radical initiation