Synlett 2021; 32(01): 81-85
DOI: 10.1055/s-0040-1707310
letter

Dual Roles of Rongalite: Reductive Coupling Reaction to Construct Thiosulfonates Using Sulfonyl Hydrazides

Guofu Zhang
a   College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. of China   Email: gfzhang@zjut.edu.cn   Email: dingcr@zjut.edu.cn
,
Qiankun Fan
a   College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. of China   Email: gfzhang@zjut.edu.cn   Email: dingcr@zjut.edu.cn
,
Yiyong Zhao
b   Zhejiang Ecological Environment Low Carbon Development Center, Hangzhou 310012, P. R. of China
,
Huimin Wang
a   College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. of China   Email: gfzhang@zjut.edu.cn   Email: dingcr@zjut.edu.cn
,
a   College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. of China   Email: gfzhang@zjut.edu.cn   Email: dingcr@zjut.edu.cn
› Author Affiliations
We acknowledge financial support from the National Natural Science Foundation of China (20702051), the Natural Science Foundation of Zhejiang Province (LY13B020017).


Abstract

A tunable and practical transformation of structurally diverse sulfonyl hydrazides into thiosulfonates in the presence of Rongalite (NaHSO2·CH2O) was developed. Transition-metal-free conditions, operational simplicity, and readily available reagents are the striking features of this protocol. It is the first example for the synthesis of thiosulfonates using sulfonyl hydrazides with the assistance of reductant. Additionally, the mechanistic studies revealed that this transformation probably undergoes via a reducing–coupling pathway.

Supporting Information



Publication History

Received: 21 July 2020

Accepted after revision: 04 September 2020

Article published online:
09 October 2020

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