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