The regioselective direct C3-esterification of indoles with OXA is developed in an efficient reaction with carboxylic acids using the catalyst CuBr2 and oxidants Ag2CO3 and K2S2O8. The simple experimental procedure is proved to be broadly applicable to a range of substrates, including aromatic and aliphatic acids, and the corresponding products were obtained in good yields up to 87%. At the same time
使用催化剂CuBr 2和氧化剂Ag 2 CO 3和K 2 S 2 O 8在与
羧酸的有效反应中开发了
吲哚与OXA的区域选择性直接C3-酯化反应。简单的实验程序被证明可广泛适用于一系列底物,包括
芳香酸和
脂肪酸,并且以高达 87% 的良好收率获得了相应的产物。同时为在相同反应条件下与苄基
羧酸反应制备
吲哚的C3-苄基衍
生物提供了一种有价值的途径。