Organocatalytic asymmetric multicomponent reactions of aromatic aldehydes and anilines with β-ketoesters: facile and atom-economical access to chiral tetrahydropyridines
作者:Xuejian Li、Yanyan Zhao、Haijun Qu、Zhenjun Mao、Xufeng Lin
DOI:10.1039/c2cc38349g
日期:——
The first catalytic asymmetric pseudo five-component (AB(2)C(2) type) reaction is reported. A spirocyclic chiral phosphoric acidcatalyzedone-potmulticomponentreaction of aromatic aldehydes, anilines and beta-ketoesters and afforded highlyfunctionalized enantioenriched tetrahydropyridines with high levels of stereocontrol.
Synthesis of tetrahydropyridines by one-pot multicomponent reaction using nano-sphere silica sulfuric acid
作者:Masoume Daraei、Mohammad Ali Zolfigol、Fateme Derakhshan-Panah、Morteza Shiri、Hendrik G. Kruger、Mohammad Mokhlesi
DOI:10.1007/s13738-014-0548-x
日期:2015.5
A highly efficient protocol for the synthesis of 1,2,3,4-tetrahydropyridines in the presence of nano-sphere silica sulfuric acid (NS-SSA) was used for good yields by one-potmulticomponentreaction (MCRs). The reagent nano-sphere silica sulfuric acid (NS-SSA) has several advantages, such as easy workup, nontoxicity, convenience and high yields of products.