Their high performance was observed in rhodium-catalyzed asymmetric addition of organoboron reagents to 伪,尾-unsaturated ketones, N-sulfonylimines, and so on. In this Symposium, some of the recent results obtained with the chiral diene ligands will be presented.Tamia Hayashi...
M. Chiral olefins as steering ligands in asymmetric catalysis. Angew. Chem. Int. Ed. 47, 4482–4502 (2008). Article CAS Google Scholar Feng, X. & Du, H. Synthesis of chiral olefin ligands and their application in asymmetric catalysis. Asian J. Org. Chem. 1, 204–213 (2012). ...
ChemInform Abstract: Development of Bicyclo[3.3.0]octadiene- or Dicyclopentadiene-Based Chiral Diene Ligands for Transition-Metal-Catalyzed Reactions Chiral Olefin Ligands New "Spectators" in Asymmetric Catalysis. Angew. Chem., Int. Ed. 2004, 43, 3364-3366. (b) Defieber, C.; Grützmacher, H...
DevelopmentofChiralPhosphine–OlefinLigands andTheirUseinAsymmetricCatalysis ResearchWorksinHayashiGroup,KyotoUniversity (Oct,2003–Mar,2007) Wei-LiangDuan July31,2007 PPh 2 Ph ConventionalChiralLigandsinAsymmetricCatalysis (R)-Binapand(R,R)-Ph-bod*intheRhodium-Catalyzed 1,4-AdditionofPhenylboronictoCycloh...
ChemInform Abstract: Chiral Ditopic Cyclophosphazane (CycloP) Ligands: Synthesis, Coordination Chemistry, and Application in Asymmetric Catalysis. ChemInform Abstract: Chiral Ditopic Cyclophosphazane (CycloP) Ligands: Synthesis, Coordination Chemistry, and Application in Asymmetric Catalysis... T Roth,H Wa...
Carbohydrate phosphinites as chiral ligands for asymmetric synthesis catalyzed by complexes: V. New rhodium(I)-chelates prepared by precipitation from the ... Some byproducts of the preparation of cationic rhodium(I)bis(phosphinite)-chelates 3 from rhodium(I)-[(Z,Z)-cycloocta-1,5-diene]-ace...
Finally, we employed t-Bu-BOX ligands with a variable bite angle (L10, L11, and L12) and found the optimum conditions with a cyclopentyl-substituted t-Bu-BOX (L12), which gave the azidodecalin (4a) in 80% yield with 93% ee (entry 7)....
Organic chemistry of dinitrogen and related ligands. Part 6. Crystal and molecular structure of [WBr(dppe)2{N2CN(Me)CH2CH2NMe}][PF6](dppe = Ph2PCH2CH2PPh2), a complex in which fluxional behaviour results from steric destabilisation of th... J. CHEW SOC. DALTON TRANS. 1984 I675 Organic...
ChiralLigandDesign DongLab LiteratureTalk February19,2014 Overview •Background •DIOPandSons:C 2 Symmetry •C 1 Symmetry •Non-symmetrical •OtherChiralLigands •Conclusions LigandsandOtherInventions •PaulEhrlich:“Fatherof Chemotherapy” 1.Geist-Goodidea 2.Geld-Money 3.Geduld-Patience 4....
OPEN Organocatalytic atroposelective synthesis of axially chiral styrenes Sheng-Cai Zheng1, San Wu1, Qinghai Zhou1, Lung Wa Chung1, Liu Ye1 & Bin Tan1 Axially chiral compounds are widespread in biologically active compounds and are useful chiral ligands or organocatalysts in asymmetric catalysis....