Multigram Synthesis and C−C/C−N Couplings of Functionalized 1,2‐Disubstituted Cyclopropyltrifluoroborates
作者:Oleksandr V. Hryschuk、Yevhen Yurov、Andriy V. Tymtsunik、Volodymyr O. Kovtunenko、Igor V. Komarov、Oleksandr O. Grygorenko
DOI:10.1002/adsc.201900879
日期:2019.12.3
A convenient approach to the multigram synthesis of functionalized 1,2‐disubstituted cyclopropyltrifluoroborates was developed, based on Pd(II)‐ or Cu(I)‐catalyzed reaction of vinyltrifluoroborate and diazo compounds. Optimized protocols allowed for the preparation of the target products as pure diastereomers on multigram scale. It was shown that the title compounds were good coupling partners for