Modulating Reactivity and Diverting Selectivity in Palladium-Catalyzed Heteroaromatic Direct Arylation Through the Use of a Chloride Activating/Blocking Group
作者:Benoît Liégault、Ivan Petrov、Serge I. Gorelsky、Keith Fagnou
DOI:10.1021/jo902515z
日期:2010.2.19
Through the introduction of an aryl chloride substituent, the selectivity of palladium-catalyzeddirectarylation may be diverted to provide alternative regioisomeric products in high yields. In cases where low reactivity is typically observed, the presence of the carbon−chlorine bond can serve to enhance reactivity and provide superior outcomes. From a strategic perspective, the C−Cl bond is easily
Metal‐Free Regioselective Chlorosulfenylation of Indoles by Dimethylsulfoxide and 1,2‐Dichloroethane
作者:Kuntal Palit、Niranjan Panda
DOI:10.1002/ejoc.202400110
日期:2024.4.22
Csp2−H difunctionalization of indole was reported. The common solvents dimethyl sulfoxide (DMSO) and dichloroethane (DCE) were used as precursor to generate chlorodimethylsulfonium ion for electrophilic methylthiolation followed by chlorination by enabling 2-chloro-3-methylthioindoles.