Yinxia Cai

Aryl sulfonyl fluoride synthesis via organophotocatalytic fluorosulfonylation of diaryliodonium salts A mild and efficient synthesis of various aryl sulfonyl fluorides from diaryliodonium salts under organophotocatalysis via radical sulfur dioxide insertion and fluorination strategy is presented. Diaryliodonium salts are used as aryl radical precursor, 1,4-diazabicyclo[2.2.2]octane bis(sulfur dioxide) adduct (DABSO) as sulfonyl source and cheap KHF2 as desirable fluorine source, respectively.

We disclose herein a photocatalytic decarboxylative fluorosulfonylation reaction of various hypervalent iodine(III) carboxylates in combination with 1,4-diazabicyclo[2.2.2]octane–bis(sulfur dioxide) adduct as a sulfonyl source and KHF2 as a desirable fluorine source via a radical sulfur dioxide insertion and fluorination strategy. A one-pot photocatalytic decarboxylative fluorosulfonylation reaction of various carboxylic acids mediated by PhI(OAc)2 was realized, as well.

Aryl sulfonyl fluoride synthesis via palladium-catalyzed fluorosulfonylation of aryl thianthrenium salts Lingling Shan, Zhanhu Ma, Caiyun Ou, Yinxia Cai, Yuyang Ma, Yong Guo, Xiaoyu Ma and Chao Liu Abstract We developed an efficient palladium-catalyzed fluorosulfonylation reaction of aryl thianthrenium salts to smoothly prepare various aryl sulfonyl fluorides using cheap Na2S2O4 as a convenient sulfonyl source in combination with N-fluorobenzenesulfonimide (NFSI) as an ideal fluorine source...