66499-26-1Relevant articles and documents
General sulfone construction: Via sulfur dioxide surrogate control
Chen, Shihao,Li, Yaping,Wang, Ming,Jiang, Xuefeng
supporting information, p. 322 - 326 (2020/02/13)
A highly efficient one-step synthesis of alkyl-alkyl and aryl-alkyl sulfones with a facile combination of halides, sulfur dioxide surrogates and phosphate esters is described. When thiourea dioxide was employed as a reductive sulfur dioxide surrogate, alkyl-alkyl sulfones were obtained under transition metal free conditions. Aryl-alkyl sulfones were obtained with an extremely low catalytic loading (0.2 mol%) via altering the mask of sulfur dioxide surrogates to sodium dithionite. A phosphate ester was employed as a stable and readily available alkyl source. Notably, this protocol has been applied to the late-stage modification of natural products and bioactive molecules.
