Rh-Catalyzed C–H bond alkylation of indoles with α,α-difluorovinyl tosylate <i>via</i> indolyl group migration
作者:Lu Zhou、Chuan Zhu、Teck-Peng Loh、Chao Feng
DOI:10.1039/c8cc02183j
日期:——
Herein we demonstrate that an alkylation of indoles could be accessed through C–H bond functionalization with α,α-difluorovinyl tosylate. The key aspect for the effective alkylation is the influence of the fluorine substituents on the reactivity of the CC double bond, allowing regioselective insertion as well as an indolyl group shift process. Furthermore, the fluorides are removed through alcoholysis
Rh(III)-Catalyzed three-component C H functionalization reaction with vinylene carbonate: Late-stage C H esterification of indole derivatives
作者:Bin-Shi Li、Huai-Xuan Guo、Wei Sun、Meng Sun
DOI:10.1016/j.tetlet.2022.153854
日期:2022.6
An efficient and robust Rh(III)-catalyzedthree-component CH esterification reaction of indole derivatives with vinylene carbonate to access indolyl acetates has been developed.This protocol exhibits high efficiency, good yields, and excellent functional group tolerance. Significantly, this method provides a powerful approach for the late-stage modification of indole-based substrates and natural alcohols
开发了一种高效、稳健的 Rh(III) 催化的吲哚衍生物与碳酸亚乙烯酯的三组分 C H 酯化反应以获取乙酸吲哚酯。该协议具有高效、良好的收率和优异的官能团耐受性。值得注意的是,该方法为吲哚基底物和天然醇的后期改性提供了一种强有力的方法。