Copper-Catalyzed TBHP-Mediated Radical Cross-Coupling Reaction of Sulfonylhydrazides with Thiols Leading to Thiosulfonates
作者:Guo-Yu Zhang、Shuai-Shuai Lv、Adedamola Shoberu、Jian-Ping Zou
DOI:10.1021/acs.joc.7b01121
日期:2017.9.15
A tert-butyl hydroperoxide (TBHP)-mediated coupling of sulfonylhydrazides with thiols catalyzed by CuBr2 to afford thiosulfonates via a radical process is described.
Hypervalent Iodine in Synthesis XXII: A Novel Way for the Preparation of Unsymmetric S-Aryl Thiosulfonates by the Reaction of Potassium Thiosulfonates with Diaryliodonium Salts
作者:Min Xia、Zhen-Chu Chen
DOI:10.1080/00397919708006058
日期:1997.4
Abstract Unsymmetric S-aryl thiosulfonates can be generated through a novel way for the reaction of potassium thiosulfonates with diaryliodonium salts in good yields under mild conditions.
The first example of Sc(OTf)(3)-catalyzed sulfenylation of sodium sulfinates with N-(organothio)succinimides in ionic liquids (ILs) and water cosolvent system was developed, achieving thiosulfonates in moderate to excellent yields. Additionally, Sc(OTf)(3)/ILs could be recovered easily after the reactions and reused without a significant loss in the catalytic activity. Thus, the present protocol represents an interesting complement to known methods for thiosulfonates synthesis. (C) 2012 Elsevier Ltd. All rights reserved.