Synthesis of Indolines via a Domino Cu-Catalyzed Amidation/Cyclization Reaction
作者:Ana Minatti、Stephen L. Buchwald
DOI:10.1021/ol8008792
日期:2008.7.3
A highly efficient one-pot procedure for the synthesis of indolines and their homologues based on a domino Cu-catalyzed amidation/nucleophilic substitution reaction has been developed. Substituted 2-iodophenethyl mesylates and related compounds afforded the corresponding products in excellent yields. No erosion of optical purity was observed when transforming enantiomerically pure mesylates under the
Photoinduced Copper(I)-Catalyzed Cyanation of Aromatic Halides at Room Temperature
作者:Kicheol Kim、Soon Hyeok Hong
DOI:10.1002/adsc.201700213
日期:2017.7.17
copper(I)-catalyzed cyanation of aromatichalides at room temperature has been developed. The sp2 cyanation reaction exhibits outstanding tolerance to functionalgroups including primary amines and carboxylic acids, and chemoselectivity to SN2-reactive alkyl chlorides. Mechanistic investigations indicate that the reaction occurs via a single-electron transfer (SET) between the aryl halide and an excited copper(I)
Described herein is the direct chlorination of carboxylic acids using copper(II) chloride via a gallium(III)-catalyzed reduction in the presence of a hydrosiloxane. During this reductive chlorination, the counteranions of CuCl2 functioned as a chloride source.
radical-mediated SH reaction on the sulfonium center of SAM. The sulfonium-based SH reactions were then investigated in detail by density functional theory calculations and model reactions, which showed that this type of reactions is thermodynamically favorable and kinetically competent. These findings represent the first report of sulfonium-based SH reactions, which could be useful in synthetic chemistry.