Trimethylamine borane, Borane trimethylamine complex
see also: ammonia borane
The use of trimethylamine-borane facilitates a six-electron reduction of CO2 for a highly selective monomethylation of 2-arylacetonitrile derivatives. Various 2-arylpropionitriles were obtained in good yields.
X. Zhang, S. Wang, C. Xi, J. Org. Chem., 2019, 84, 9744-9749.
Metal-free reductive N-trifluoroethylation and N-trifluoroacetylation of indoles provide trifluoroethylated or trifluoroacetylated indolines depending on the loading of trimethylamine borane as reducing agent and TFA as trifluoroethyl or trifluoroacetyl source, respectively.
Y.-F. Zeng, M.-X. Zhou, Y.-N. Li, X. Wu, Y. Guo, Z. Wang, Org. Lett., 2022, 24, 7440-7445.