Palladium-Catalyzed Regioselective C4-H Acyloxylation of Indoles with Carboxylic Acids via a Transient Directing Groups Strategy
作者:Xing-Long Zhang、Meng-Yue Wang、Hui-Jin Liu、Yong-Qiang Wang
DOI:10.1021/acs.orglett.3c03568
日期:2024.1.12
oxy-substituted indoles is an appealing yet challenging task. Herein, we report a general palladium-catalyzed TDG approach for the direct C4-H acyloxylation of indoles. The protocol features atom and step economy, excellent regioselectivity, and good tolerance of functional groups. Moreover, the reaction can accommodate a range of carboxylic acids including benzoic acids, phenylacetic acids, and aliphatic
开发一种有效的 C4 氧基取代吲哚合成方法是一项有吸引力但具有挑战性的任务。在此,我们报告了一种用于吲哚直接 C4-H 酰氧基化的通用钯催化 TDG 方法。该协议具有原子和步骤经济性、优异的区域选择性和良好的官能团耐受性。此外,该反应可以适应一系列羧酸,包括苯甲酸、苯乙酸和脂肪酸。