Metal-free I<sub>2</sub>O<sub>5</sub>-mediated direct construction of sulfonamides from thiols and amines
作者:Minghui Zhu、Wei Wei、Daoshan Yang、Huanhuan Cui、Leilei Wang、Guoqing Meng、Hua Wang
DOI:10.1039/c7ob00668c
日期:——
A simple and convenient method has been developed for the construction of sulfonamides via I2O5-mediated sulfonylation of amines with arylthiols. The present protocol provides an attractive approach to sulfonamides in moderate to good yields from readily accessible and easy to handle starting materials under mild and metal-free conditions.
One-Pot Sulfonamide Synthesis Exploiting the Palladium-Catalyzed Sulfination of Aryl Iodides
作者:Michael Willis、Emmanuel Flegeau、Jack Harrison
DOI:10.1055/s-0035-1560578
日期:——
prepared from aryl iodides and the sulfurdioxidesurrogateDABSO, under the action of a palladium(0) catalyst, are transformed in a one-pot process to a variety of functionalized sulfonamides. The sulfinate to sulfonamide transformation is achieved by simple treatment with an aqueous solution of the relevant amine and sodium hypochlorite (bleach). A broad range of amines, including anilines, and amino
Copper-catalyzed electrophilic amination of sodium sulfinates at room temperature
作者:Haibo Zhu、Yajing Shen、Qinyue Deng、Tao Tu
DOI:10.1039/c5cc06069a
日期:——
By using O-benzoyl hydroxylamines as amine source, the first convenient copper-catalyzed electrophilic amination of sodium sulfinates has been realized. Even with 2 mol% catalyst loading, the protocol provided an efficient...
Sulfuric chloride is used as the source of the –SO2– group in a palladium-catalyzed three-component synthesis of sulfonamides. Suzuki–Miyaura coupling between the in situ generated sulfamoyl chlorides and boronic acids gives rise to diverse sulfonamides in moderate to high yields with excellent reaction selectivity. Although this transformation is not workable for primary amines or anilines, the results