Alumina-Promoted Copper-Catalyzed Hydroboration of Alkynes
作者:Gennadij V. Latyshev、Xenia A. Barashkova、Mikhail J. Parulava、Yury N. Kotovshchikov、Nikolay V. Lukashev、Irina P. Beletskaya
DOI:10.1055/a-2236-8874
日期:2024.5
Alumina was found to activate Cu(I) catalysts in hydroboration of alkynes. This allowed to develop a simple and efficient protocol for hydroboration of alkynes with B2Pin2 using inexpensive CuCl/PPh3 catalytic system. The approach does not require moisture-sensitive activators and stepwise preparation of ‘activated’ Cu complex. The developed conditions were applied to the preparation of β-styrylboronates