Confinement‐Driven Enantioselectivity in 3D Porous Chiral Covalent Organic Frameworks
作者:Bang Hou、Shi Yang、Kuiwei Yang、Xing Han、Xianhui Tang、Yan Liu、Jianwen Jiang、Yong Cui
DOI:10.1002/anie.202013926
日期:2021.3.8
3D covalent organic frameworks (COFs) with well‐defined porous channels are shown to be capable of inducing chiral molecular catalysts from non‐enantioselective to highly enantioselective in catalyzing organic transformations. By condensations of a tetrahedral tetraamine and two linear dialdehydes derived from enantiopure 1,1′‐binaphthol (BINOL), two chiral 3D COFs with a 9‐fold or 11‐fold interpenetrated
Short asymmetric synthesis of phenanthroindolizidines through chiral homoallylic sulfinamines
作者:Cintia Anton-Torrecillas、Jose C. Gonzalez-Gomez
DOI:10.1039/c4ob01133c
日期:——
An expeditious synthesis of enantioenriched phenanthroindolizidines has been achieved using tert-butylsulfinamide as a chiral inductor and without any other protecting group.