Construction of Chiral Tetrahydro-β-Carbolines: Asymmetric Pictet-Spengler Reaction of Indolyl Dihydropyridines
作者:Shou-Guo Wang、Zi-Lei Xia、Ren-Qi Xu、Xi-Jia Liu、Chao Zheng、Shu-Li You
DOI:10.1002/anie.201703178
日期:2017.6.19
A highly efficient synthesis of the enantioenriched tetrahydro-β-carbolines was developed by using a chiral phosphoric acid catalyzed Pictet–Spengler reaction of indolyl dihydropyridines. The reaction proceeds under mild reaction conditions to afford the desired chiral tetrahydro-β-carbolines in good to excellent yields (up to 96 %) and high enantioselectivities (up to 99 % ee). With this method, a
Hydrogenative Dearomatization of Pyridine and an Asymmetric Aza‐Friedel–Crafts Alkylation Sequence
作者:Shuo‐Guo Wang、Shu‐Li You
DOI:10.1002/anie.201309876
日期:2014.2.17
Highly efficient synthesis of enantiomerically enriched substitutedpiperidines has been realized via chiral phosphoric acid catalyzed cascade hydrogenative dearomatization of substituted pyridines and aza‐Friedel‐Crafts reaction in good to excellent yields and enantioselectivity.
Catalytic Asymmetric Dearomatization of Indolyl Dihydropyridines through an Enamine Isomerization/Spirocyclization/Transfer Hydrogenation Sequence
作者:Zi-Lei Xia、Chao Zheng、Shou-Guo Wang、Shu-Li You
DOI:10.1002/anie.201712435
日期:2018.3.1
A highly efficient synthesis of enantioenriched spiroindolines by catalyticasymmetric dearomatization of indolyl dihydropyridines through a chiral phosphoric acid catalyzed enamine isomerization/spirocyclization/transferhydrogenation sequence has been developed. This reaction proceeds under mild reaction conditions, affording novel spiroindolines in good yields (up to 88 %) with excellent enantioselectivity