Rhodium(III)‐Catalyzed Regioselective C−H Allylation and Prenylation of Indoles at C4‐Position
作者:Shang‐Shi Zhang、Yan‐Zhi Liu、Yi‐Chuan Zheng、Hui Xie、Shao‐Yong Chen、Jia‐Lin Song、Bing Shu
DOI:10.1002/adsc.202100882
日期:2022.1.4
Herein, Rh(III)-catalyzed C4-selective C−H allylation and prenylation of indoles by using a weak carbonyl coordination directing group have been reported. By employing 5-methylene-1,3-dioxan-2-ones, 4-vinyl-1,3-dioxolan-2-ones and 2-methyl-2,3-butadiene as scalable cross-coupling partners, these divergent synthesis protocols proceed smoothly under redox-neutral reaction conditions, delivering various
在本文中,已经报道了通过使用弱羰基配位导向基团,Rh(III) 催化的 C4 选择性 C-H 烯丙基化和吲哚异戊二烯化。通过采用 5-methylene-1,3-dioxan-2-ones、4-vinyl-1,3-dioxolan-2-ones 和 2-methyl-2,3-butadiene 作为可扩展的交叉偶联伙伴,这些不同的合成方案在氧化还原中性反应条件下顺利进行,以中等至满意的产率提供各种烯丙基化和异戊二烯化吲哚。这种转变表现出高官能团兼容性和广泛的底物范围。还完成了放大实验和机理研究。