Competitive Reaction Pathways in the Nucleophilic Substitution Reactions of Aryl Benzenesulfonates with Benzylamines in Acetonitrile
作者:Jin Heui Choi、Byung Choon Lee、Hai Whang Lee、Ikchoon Lee
DOI:10.1021/jo0161835
日期:2002.2.1
The reactions of aryl benzenesulfonates (YC6H4SO2OC6H4Z) with benzylamines (XC6H4CH2NH2) in acetonitrile at 65.0 degrees C have been studied. The reactions proceed competitively by S-O (kS-O) and C-O (kC-O) bond scission, but the former provides the major reaction pathway. On the basis of analyses of the Hammett and Brönsted coefficients together with the cross-interaction constants rho(XY), rho(YZ)
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