A palladium-catalyzed three-component coupling of arylboronic acids, sulfur dioxide and hydrazines
作者:Shengqing Ye、Jie Wu
DOI:10.1039/c2cc33725h
日期:——
to aryl N-aminosulfonamides via a palladium-catalyzed three-component coupling of arylboronic acids, sulfurdioxide and hydrazines in the presence of a balloon of dioxygen is reported. The reaction proceeded smoothly under mild conditions and DABCO.(SO(2))(2) was used as the source of sulfurdioxide.
A palladium-catalyzed coupling reaction of aryl nonaflates, sulfur dioxide, and hydrazines
作者:Yuanyuan An、Hongguang Xia、Jie Wu
DOI:10.1039/c5ob02514a
日期:——
nonaflates, sulfurdioxide, and hydrazines is reported. This transformation proceeds in the presence of Pd(OAc)2/XantPhos, and TBAB in 1,4-dioxane at 80 °C, leading to the corresponding N-aminosulfonamides in moderate to good yields. The reaction scope has been demonstrated, and good functional tolerance is observed. A plausible mechanism is proposed through the insertion of sulfurdioxide.
A palladium-catalyzed reaction of aryl halides, potassium metabisulfite, and hydrazines
作者:Shengqing Ye、Jie Wu
DOI:10.1039/c2cc34957d
日期:——
Aryl N-aminosulfonamides could be easily produced via a palladium-catalyzed coupling of aryl halides, potassium metabisulfite, and hydrazines. Potassium metabisulfite is an excellent equivalent of sulfur dioxide in the reaction of palladium-catalyzed aminosulfonylation.