Switchable Reductive <i>N</i>-Trifluoroethylation and <i>N</i>-Trifluoroacetylation of Indoles with Trifluoroacetic Acid and Trimethylamine Borane
作者:Yao-Fu Zeng、Ming-Xi Zhou、Yi-Na Li、Xin Wu、Yu Guo、Zhen Wang
DOI:10.1021/acs.orglett.2c03011
日期:2022.10.14
The metal-free reductive N-trifluoroethylation and N-trifluoroacetylation of indoles have been developed. Bench stable and inexpensive trimethylamine borane and trifluoroacetic acid (TFA) were utilized as the reductive and fluorinating reagents, respectively. These transformations were switchable on the basis of altering the loading of trimethylamine borane and TFA. Preliminary experiments indicated
开发了吲哚的无金属还原性N-三氟乙基化和N-三氟乙酰化。实验室稳定且廉价的三甲胺硼烷和三氟乙酸 (TFA) 分别用作还原剂和氟化剂。这些转化可根据改变三甲胺硼烷和 TFA 的负载量进行切换。初步实验表明二氢吲哚是这两种转化中的常见中间体。