Asymmetric organic catalysis with modified cinchona alkaloids.
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Catalytic Kinetic Resolution of a Dynamic Racemate: Highly Stereoselective β-Lactone Formation by N-Heterocyclic Carbene CatalysisOrganocatalytic asymmetric assembly reactions for the syntheses of carbohydrate derivatives by intermolecular Michael-Henry reactionsCarbene radicals in cobalt(II)-porphyrin-catalysed carbene carbonylation reactions; a catalytic approach to ketenes.Quantum mechanical investigations of organocatalysis: mechanisms, reactivities, and selectivities.Syntheses of manzacidins: a stage for the demonstration of synthetic methodologies.Mechanism and selectivity of cinchona alkaloid catalyzed [1,3]-shifts of allylic trichloroacetimidates.Recent advances in enantioselective organocatalyzed anhydride desymmetrization and its application to the synthesis of valuable enantiopure compounds.Catalytic dynamic kinetic resolutions with N-heterocyclic carbenes: asymmetric synthesis of highly substituted β-lactonesHomobenzotetramisole-Catalyzed Kinetic Resolution of alpha-Aryl-, alpha-Aryloxy-, and alpha-Arylthioalkanoic Acids.Enantioselective synthesis of alpha,alpha-disubstituted cyclopentenes by an N-heterocyclic carbene-catalyzed desymmetrization of 1,3-diketonesAsymmetric synthesis of beta,gamma-unsaturated alpha-amino acids via efficient kinetic resolution with cinchona alkaloids.Synthesis of Enantioenriched α,α-Disubstituted Cyclopentenes Catalyzed by N-Heterocyclic Carbenes.Asymmetric synthesis of functionalized cyclopentanones via a multicatalytic secondary amine/N-heterocyclic carbene catalyzed cascade sequence.Catalytic, asymmetric reactions of ketenes and ketene enolates.Enantioselective synthesis of coumarins catalyzed by a bifunctional amine-thiourea catalyst.Chiral bifunctional phase transfer catalysts for asymmetric fluorination of beta-keto esters.Asymmetric synthesis of fluorinated flavanone derivatives by an organocatalytic tandem intramolecular oxa-Michael addition/electrophilic fluorination reaction by using bifunctional cinchona alkaloids.Asymmetric cyanation of aldehydes, ketones, aldimines, and ketimines catalyzed by a versatile catalyst generated from cinchona alkaloid, achiral substituted 2,2'-biphenol and tetraisopropyl titanate.Organocatalytic synthesis of highly functionalized pyridines at room temperature.A branched domino reaction: asymmetric organocatalytic two-component four-step synthesis of polyfunctionalized cyclohexene derivatives.Inner workings of a cinchona alkaloid catalyzed oxa-Michael cyclization: evidence for a concerted hydrogen-bond-network mechanism.Quinine-thiourea catalyzed enantioselective hydrophosphonylation of trifluoromethyl 2(1H)-quinazolinones.Kinetic resolution of sec-alcohols using a new class of readily assembled (S)-proline-derived 4-(pyrrolidino)-pyridine analogues.Organocatalytic asymmetric cyanation of isatin derived N-Boc ketoimines.Highly diastereo- and enantioselective [3+2] annulation of isatin-derived Morita-Baylis-Hillman carbonates with trifluoropyruvate catalyzed by tertiary amines.Construction of bispirooxindoles containing three quaternary stereocentres in a cascade using a single multifunctional organocatalyst.Highly efficient asymmetric additions of diethylzinc to aldehydes triply activated by chiral phosphoramide-Zn(II) complexes derived from cinchona alkaloids.Organocatalytic Intramolecular [4+2] Cycloaddition between In Situ Generated Vinylidene ortho-Quinone Methides and Benzofurans.Total Syntheses of Pyroclavine, Festuclavine, Lysergol, and Isolysergol via a Catalytic Asymmetric Nitro-Michael Reaction.Michael Addition Catalyzed by Chiral Secondary Amine Phosphoramide Using Fluorinated Silyl Enol Ethers: Formation of Quaternary Carbon Stereocenters.Highly enantioselective Michael addition of 3-arylthio- and 3-alkylthiooxindoles to nitroolefins catalyzed by a simple cinchona alkaloid derived phosphoramide.A catalyst-free, one-pot three-component aminomethylation of α-substituted nitroacetates: theoretical and experimental studies into the rate-accelerating effects of the solvent methanol.Organocatalytic asymmetric synthesis of 3-difluoroalkyl 3-hydroxyoxindoles.A highly enantioselective Friedel-Crafts reaction of 3,5-dimethoxylphenol with nitroolefins mediated by a bifunctional quinine derived thiourea catalyst.Enantioselective Synthesis of Quaternary α-Amino Acids Enabled by the Versatility of the Phenylselenonyl Group.Asymmetric additions of thioglycolates and N-Boc aldimines catalyzed by a bifunctional tertiary-amine squaramide.Synthesis and application of a recyclable ionic liquid-supported imidazolidinone catalyst in enantioselective 1,3-dipolar cycloaddition.Enantioselective Stetter reactions of enals and modified chalcones catalyzed by N-heterocyclic carbenes.Enantioselective assembly of amphipathic chiral polymer and racemic chiral small molecules during preparation of micro-scale polymer vesicles.A Highly Efficient Chirality Switchable Synthesis of Dihydropyran-Fused Benzofurans by Fine-Tuning the Phenolic Proton of β-Isocupreidine (β-ICD) Catalyst with Methyl.
P2860
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P2860
Asymmetric organic catalysis with modified cinchona alkaloids.
description
2004 nî lūn-bûn
@nan
2004年の論文
@ja
2004年学术文章
@wuu
2004年学术文章
@zh-cn
2004年学术文章
@zh-hans
2004年学术文章
@zh-my
2004年学术文章
@zh-sg
2004年學術文章
@yue
2004年學術文章
@zh
2004年學術文章
@zh-hant
name
Asymmetric organic catalysis with modified cinchona alkaloids.
@en
Asymmetric organic catalysis with modified cinchona alkaloids.
@nl
type
label
Asymmetric organic catalysis with modified cinchona alkaloids.
@en
Asymmetric organic catalysis with modified cinchona alkaloids.
@nl
prefLabel
Asymmetric organic catalysis with modified cinchona alkaloids.
@en
Asymmetric organic catalysis with modified cinchona alkaloids.
@nl
P2093
P356
P1476
Asymmetric organic catalysis with modified cinchona alkaloids.
@en
P2093
Jianfeng Hang
Liang Tang
Paul McDaid
Shi-Kai Tian
Yonggang Chen
P304
P356
10.1021/AR030048S
P407
P577
2004-08-01T00:00:00Z