posted on 2024-01-05, 13:34authored byGuodong Zhang, Wei Tan, Duo Zhang, Kaiping Wang, Pan Gao, Shuli Wang, Shuang-Liang Liu, Feng Chen
In the presence of visible light irradiation, organophoto/nickel
dual catalysts, and the mild base K2HPO4, 1,3-enynes
react with silanecarboxylic acids to give the corresponding α-silylallenes
with high selectivity. In this uniquely decarboxylative hydrosilylation
of 1,3-enynes, a silyl radical process is involved and diverse electron-rich
and -poor substrates proceed smoothly in moderate to excellent yields.
This transformation is particularly synthetically worthwhile when
using MeOD as the solvent, which furnishes new access to α-silyldeuteroallenes.