A heavy-metal-free desulfonylative Giese-type reaction of benzothiazole sulfones under visible-light conditions
Tetsuya Sengoku, Daichi Ogawa, Haruka Iwama, Toshiyasu Inuzuka, Hidemi Yoda
Abstract
A visible-light-induced desulfonylative Giese-type reaction has been developed. Essential to the success is the employment of Hantzsch ester to activate benzothiazole sulfones without any heavy-metal additives. Not only benzylic benzothiazole sulfones but also alkyl ones were viable substrates and reacted with electron-deficient alkenes and a propiol amide.
Topics & Concepts
BenzothiazoleChemistryMetalPhotochemistryVisible spectrumPolymer chemistryOrganic chemistryMaterials scienceOptoelectronicsSulfur-Based Synthesis TechniquesRadical Photochemical ReactionsCatalytic C–H Functionalization Methods