Sodiump-Toluenesulfinate/KI-Mediated Aerobic Oxidative Iodination of Terminal Alkynes for Synthesis of 1-Iodoalkynes and 1,3-Diynes

Electrochemically enabled C(sp3)–C(sp) cross-coupling of alkyl iodides, N-hydroxyphthalimide esters, and Katritzky salts with acetylenic sulfones

“…In recent years, several research groups have reported metal-free C(sp 3 )–C(sp) coupling reactions via radical pathways (Scheme 1b). 11 Notably, the construction of the C(sp 3 )–C(sp) bond through visible light photocatalysis has been developed. 12 In the existing synthetic methods, most of the C(sp 3 )–C(sp) coupling protocols are achieved by the use of Ru, 13 Ir 14 and other metal-based photocatalysts 15 upon visible light excitation (Scheme 1c).…”