Metal-Free Direct Construction of Sulfonamides<i>via</i>Iodine- Mediated Coupling Reaction of Sodium Sulfinates and Amines at Room Temperature
作者:Wei Wei、ChunLi Liu、Daoshan Yang、Jiangwei Wen、Jinmao You、Hua Wang
DOI:10.1002/adsc.201400801
日期:2015.3.23
simple, practical, and metal‐free protocol has been developed for the synthesis of sulfonamides from sodiumsulfinates and various amines through an iodine‐mediated SN bond formation reaction at room temperature. This green reaction is cost‐effective, operationally straightforward, and especially proceeds under very mildconditions to afford the target products in good to excellent yields (up to 98%)
Nickel-catalyzed product-controllable amidation and imidation of sp<sup>3</sup> C–H bonds in substituted toluenes with sulfonamides
作者:Ze-lin Li、Li-kun Jin、Chun Cai
DOI:10.1039/c7ob00022g
日期:——
A nickel-catalyzed product-controllable imidation and amidation of sp3 C–H bonds in substituted toluenes with sulfonamides were developed. Based on the change of the reaction time and atmosphere from N2 to O2, this reaction proceeded in high yields and excellent selectivity under different conditions. Mechanistic details were also described.
Amide Iridium Complexes As Catalysts for Transfer Hydrogenation Reduction of <i>N</i>-sulfonylimine
作者:Huiling Wen、Nianhua Luo、Qianheng Zhu、Renshi Luo
DOI:10.1021/acs.joc.0c02680
日期:2021.3.5
water-soluble amide iridium complexes-catalyzed transfer hydrogenation reduction of N-sulfonylimine is developed, which can be carried out under environmentally friendly conditions, affording a series of sulfonamide compounds in excellent yields (96–98%). In comparison with organic solvents, water is shown to be critical for a high catalytic transfer hydrogenation reduction in which the catalyst loading can
(EWG) and silylatednucleophiles was developed to furnish coupling products in high yields, thus opening up new frontiers in organocatalyzed reactions. This reaction proceeded through the activation of N‐halogenated amides by a nitroxyl‐radical catalyst, followed by carbon–carbon coupling with silylatednucleophiles. Studies of the reaction mechanism indicated that the nitroxyl radical activates N‐halogenated