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%.

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Scheme 1: Corrected Scheme 4 of the original article. Scope of the Et 3 B and the DICAB-initiated SF 5 Cl additions on alkynes. Unless noted otherwise, isolated yields are reported. a Yield estimated by 19 F NMR analysis of the crude mixture using 2-fluoro-4-nitrotoluene as an internal standard.