Unsymmetrical disulfide and sulfenamide synthesis via reactions of thiosulfonates with thiols or amines
作者:Nobukazu Taniguchi
DOI:10.1016/j.tet.2017.02.047
日期:2017.4
The reactivity of thiosulfonates with nucleophilic reagents was investigated. When reactions of thiosulfonates with thiols were performed, unsymmetricaldisulfides were obtained in excellent yields. This procedure could employ numerous aryl or alkyl thiols. On the other hand, reactions of thiosulfonates with amines proceeded in the presence of a copper catalyst. The procedure was performed efficiently
A Versatile and Convenient Preparation of Unsymmetrical Diaryl Disulfides
作者:Dariusz Witt、Sebastian Demkowicz、Janusz Rachon
DOI:10.1055/s-2008-1067118
日期:——
of unsymmetrical diaryl disulfides under mild conditions in excellent yields. The described method is based on the straightforward preparation of 5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinane-2-sulfenyl bromide from readily available 5,5-dimethyl-2-sulfanyl-2-thioxo-1,3,2-dioxaphosphorinane or bis(5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinan-2-yl) disulfide. The unsymmetrical diaryl disulfides can