Ruthenium-Catalyzed Asymmetric Hydrogenation of <i>N</i>-Boc-Indoles
作者:Ryoichi Kuwano、Manabu Kashiwabara
DOI:10.1021/ol061039x
日期:2006.6.1
enantioselective hydrogenation of various N-Boc-indoles proceeded successfully in the presence of the ruthenium complex generated from an appropriate ruthenium precursor and a trans-chelate chiral bisphosphine PhTRAP. Various 2- or 3-substituted indoles were converted into chiral indolines with high enantiomeric excesses (up to 95% ee). The PhTRAP-ruthenium catalyst was able to promote the hydrogenation of 2,3-dimethylindoles
Ru-NHC-Catalyzed Asymmetric, Complete Hydrogenation of Indoles and Benzofurans: One Catalyst with Dual Function
作者:Fuhao Zhang、Himadri Sekhar Sasmal、Constantin G. Daniliuc、Frank Glorius
DOI:10.1021/jacs.3c04983
日期:2023.7.26
The highly enantioselective and complete hydrogenation of protected indoles and benzofurans has been developed, affording facile access to a range of chiral three-dimensional octahydroindoles and octahydrobenzofurans, which are prevalent in many bioactive molecules and organocatalysts. Remarkably, we are in control of the nature of the ruthenium N-heterocyclic carbene complex and employed the complex