Direct enantioselective hydrogenation of unsaturated compounds to generate chiral three-dimensional motifs is one of the most straightforward and important approaches in synthetic chemistry. We realized the Ru(II)-NHC-catalyzed asymmetrichydrogenation of 2-quinolones under mild reaction conditions. Alkyl-, aryl- and halogen-substituted optically active dihydro-2-quinolones were obtained in high yields
Multicomponent Strategy to Indeno[2,1-<i>c</i>]pyridine and Hydroisoquinoline Derivatives through Cleavage of Carbon–Carbon Bond
作者:Xian Feng、Jian-Jun Wang、Zhan Xun、Zhi-Bin Huang、Da-Qing Shi
DOI:10.1021/jo5025199
日期:2015.1.16
A concise and efficient three-component domino reaction has been developed for the synthesis of polyfunctionalized indenopyridine and hydroisoquinoline derivatives via the cleavage of a C–C bond under transition-metal-free conditions. This reaction provides facile access to complex nitrogen-containing heterocycles by simply mixing three common starting materials in EtOH in the presence of 20 mol %