Enantioselective Synthesis of α-Aminosilanes by Copper-Catalyzed Hydroamination of Vinylsilanes
作者:Nootaree Niljianskul、Shaolin Zhu、Stephen L. Buchwald
DOI:10.1002/anie.201410326
日期:2015.1.26
The synthesis of α‐aminosilanes by a highly enantio‐ and regioselective copper‐catalyzed hydroamination of vinylsilanes is reported. The system employs Cu‐DTBM‐SEGPHOS as the catalyst, diethoxymethylsilane as the stoichiometric reductant, and O‐benzoylhydroxylamines as the electrophilic nitrogen source. This hydroamination reaction is compatible with differentially substituted vinylsilanes, thus providing
A General Strategy for the Asymmetric Preparation of α‐Stereogenic Allyl Silanes, Germanes, and Boronate Esters via Dual Copper Hydride‐ and Palladium‐Catalysis
作者:James Levi Knippel、Anton Z. Ni、Alexander W. Schuppe、Stephen L. Buchwald
DOI:10.1002/anie.202212630
日期:2022.11.21
A general method for the enantioselective preparation of α-stereogenic allyl metalloids (M=B, Si, Ge) with broad functional group compatibility has been developed. This protocol employs dual CuH- and Pd-catalysis to access a variety of allyl metalloid species from readily accessible vinyl metalloids and enol triflates.