Frontispiece: Design and Catalytic Asymmetric Construction of Axially Chiral 3,3′‐Bisindole Skeletonsdoi:10.1002/anie.201981061asymmetric catalysisatropisomerismchiralityenantioselectivityorganocatalysisChiral Bisindole Skeletons. Organocatalytic asymmetric addition reactions of 2‐substituted 3,3′‐bisindoles and ...
The first catalytic asymmetric construction of 3,3′‐bisindole skeletons bearing both axial and central chirality has been established by organocatalytic asymmetric addition reactions of 2‐substituted 3,3′‐bisindoles with 3‐indolylmethanols (up to 98?% yield, all >95:5 d.r., >99?% ee)....
Frontispiece: Design and Catalytic Asymmetric Construction of Axially Chiral 3,3′‐Bisindole Skeletons 来自 Wiley 喜欢 0 阅读量: 2 摘要: Chiral Bisindole Skeletons. Organocatalytic asymmetric addition reactions of 2‐substituted 3,3′‐bisindoles and electrophiles create interesting structural skeletons,...
Axially chiral 1,1′-binaphthols (BINOLs) and 1,1′-spirobiindanes (SPINOLs) have achieved great success in the field of asymmetric catalysis. Although several modifications of these skeletons have been reported, new useful scaffolds are in high demand f
Design and Synthesis of Optically Active Trans-Chelating Diphosphine Ligands. Application for Catalytic Asymmetric Synthesis New chiral diphosphines 2,2-bis[1-(disubstituted phosphino)ethyl]-1,1-biferrocene, having both central and planar elements of chirality, was designed for a... Y Ito,R Kuwan...
Design and synthesis of chiral ketones or catalytic asymmetric epoxidation of unfunctionalized...Provides information on a study designing and synthesizing a series of C2 symmetric chiral ketones for catalytic asymmetric epoxidation of unfunctionalized olefins. Methodology used to conduct the study; ...
However, compared to the various examples of catalytic asymmetric transfer hydrogenation reactions of C= C and C= N double bonds mediated by Hantzsch esters, fairly limited work has been reported on asymmetric hydrogenation reactions of C= O double bonds by chiral NADH models13. Therefore,...
The catalytic control of automobile exhaust pollutants (hydrocarbons, carbon monoxide, nitrogen oxides) is now a common practice in the United States and J... CJ Pereira,G Kim,LL Hegedus - 《Catalysis Reviews》 被引量: 13发表: 1984年 Promoting Terminal Olefin Metathesis with a Supported Cationic...
The first catalytic asymmetric construction of 3,3′‐bisindole skeletons bearing both axial and central chirality has been established by organocatalytic asymmetric addition reactions of 2‐substituted 3,3′‐bisindoles with 3‐indolylmethanols (up to 98?% yield, all >95:5 d.r., >99?% ee)....
asymmetric allylic substitution[4+2] annulation reactionisosorbideisomannideL﹑rolineThe development of new and more efficient catalytic systems is the subject of increasing attention from both academic and industrial research. Moreover, biomass is an endless supply of hydrocarbon materials that can be ...