Dabco-catalysed selective chlorination of aromatics
作者:Jun Xu、Xue Li、Qiji Li、Weiyi Tian、Xiaosheng Yang
DOI:10.1016/j.tetlet.2024.154928
日期:2024.2
A Lewis base catalyst DABCO for highly efficient electrophilic aromatic chlorination using NCS was presented. The mild conditions, easy-availability and stability of the catalyst and reagents, as well as good functional-group tolerance, showed the approach to be a versatile protocol for the late-stage aromatic chlorination of complex natural products and drugs.
A Chlorinating Reagent: N-chloro-N-methoxybenzene Sulfonamide
作者:Xiaoqiu Pu、Qingwei Li、Zehai Lu、Xianjin Yang
DOI:10.1002/ejoc.201601226
日期:2016.11
Abstract: A structurally simple and reactive chlorinatingreagent,N-chloro-N-methoxybenzenesulfonamide, was conveniently and economically prepared in high yield. 1,3-Diketones, β-keto esters, benzoyl trifluoroacetones, phenols, anisoles, heteroarenes andaromatic amines were chlorinated with it, obtaining chlorinated products in good to high yields.