NHC-mediated enantioselective formal [4 + 2] cycloadditions of alkylarylketenes and β,γ-unsaturated α-ketocarboxylic esters and amides

NHC-Promoted Asymmetric β-Lactone Formation from Arylalkylketenes and Electron-Deficient Benzaldehydes or Pyridinecarboxaldehydes

(2013) James Douglas et al.   JOURNAL OF ORGANIC CHEMISTRY

Exploiting Acyl and Enol Azolium Intermediates via N-Hetero- cyclic Carbene-Catalyzed Reactions of α-Reducible Aldehydes

(2012) Harit U. Vora et al.   ADVANCED SYNTHESIS & CATALYSIS

Dihydropyridones: Catalytic Asymmetric Synthesis, N- to C-Sulfonyl Transfer, and Derivatizations

(2012) Carmen Simal et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Isothiourea-Mediated Asymmetric O- to C-Carboxyl Transfer of Oxazolyl Carbonates: Structure-Selectivity Profiles and Mechanistic Studies

(2012) Caroline Joannesse et al.   CHEMISTRY-A EUROPEAN JOURNAL

Catalytic asymmetric α-amination of carboxylic acids using isothioureas

(2012) Louis C. Morrill et al.   Chemical Science

Extending NHC-Catalysis: Coupling Aldehydes with Unconventional Reaction Partners

(2011) Akkattu T. Biju et al.   ACCOUNTS OF CHEMICAL RESEARCH

N-Heterocyclic Carbene Catalysis: Enantioselective Formal [2+2] Cycloaddition of Ketenes and N-Sulfinylanilines

(2011) Teng-Yue Jian et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Isothiourea-Catalysed Asymmetric C-Acylation of Silyl Ketene Acetals

(2011) Philip A. Woods et al.   CHEMISTRY-A EUROPEAN JOURNAL

Organocatalytic Functionalization of Carboxylic Acids: Isothiourea-Catalyzed Asymmetric Intra- and Intermolecular Michael Addition−Lactonizations

(2011) Dorine Belmessieri et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Organic base effects in NHC promoted O- to C-carboxyl transfer; chemoselectivity profiles, mechanistic studies and domino catalysis

(2011) Craig D. Campbell et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

NHC-Catalyzed Enantioselective [2 + 2] and [2 + 2 + 2] Cycloadditions of Ketenes with Isothiocyanates

(2011) Xiao-Na Wang et al.   ORGANIC LETTERS

Catalytic enantioselective Steglich rearrangements using chiral N-heterocyclic carbenes

(2011) Craig D. Campbell et al.   TETRAHEDRON-ASYMMETRY

Enantioselective Synthesis of Spirocyclic Oxindole-β-lactones via N-Heterocyclic Carbene-Catalyzed Cycloaddition of Ketenes and Isatins

(2010) Xiao-Na Wang et al.   ADVANCED SYNTHESIS & CATALYSIS

Formal [3+2] Cycloaddition of Ketenes and Oxaziridines Catalyzed by Chiral Lewis Bases: Enantioselective Synthesis of Oxazolin-4-ones

(2010) Pan-Lin Shao et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Enantioselective [4+2] cycloaddition of ketenes and 1-azadienes catalyzed by N-heterocyclic carbenes

(2010) Teng-Yue Jian et al.   CHEMICAL COMMUNICATIONS

α-Aroyloxyaldehydes: scope and limitations as alternatives to α-haloaldehydes for NHC-catalysed redox transformations

(2010) Kenneth B. Ling et al.   CHEMICAL COMMUNICATIONS

NHC-Mediated Chlorination of Unsymmetrical Ketenes: Catalysis and Asymmetry

(2010) James Douglas et al.   EUROPEAN JOURNAL OF ORGANIC CHEMISTRY

Enantioselective Synthesis of Indole-Fused Dihydropyranones via Catalytic Cycloaddition of Ketenes and 3-Alkylenyloxindoles

(2010) Hui Lv et al.   JOURNAL OF ORGANIC CHEMISTRY

Enantioselective formal [2+2] cycloaddition of ketenes with nitroso compounds catalyzed by N-heterocyclic carbenes

(2010) Tong Wang et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Structure-enantioselectivity effects in 3,4-dihydropyrimido[2,1-b]benzothiazole-based isothioureas as enantioselective acylation catalysts

(2010) Dorine Belmessieri et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Isothiourea-Mediated StereoselectiveC-Acylation of Silyl Ketene Acetals

(2010) Philip A. Woods et al.   ORGANIC LETTERS

Chiral N-heterocyclic carbene-catalyzed generation of ester enolate equivalents from  , -unsaturated aldehydes for enantioselective Diels-Alder reactions

(2010) J. Kaeobamrung et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Enantioselective [4+2] cycloaddition of ketenes and 9,10-phenanthrenequinone catalyzed by N-heterocyclic carbenes

(2010) Pan-Lin Shao et al.   TETRAHEDRON LETTERS

Chiral relay in NHC-mediated asymmetric β-lactam synthesis II; asymmetry from NHCs derived from acyclic 1,2-diamines

(2010) Nicolas Duguet et al.   TETRAHEDRON-ASYMMETRY

Chiral relay in NHC-mediated asymmetric β-lactam synthesis I; substituent effects in NHCs derived from (1R,2R)-cyclohexane-1,2-diamine

(2010) Nicolas Duguet et al.   TETRAHEDRON-ASYMMETRY

Enantioselective Synthesis of DihydrocoumarinsviaN-Heterocyclic Carbene-Catalyzed Cycloaddition of Ketenes ando-Quinone Methides

(2009) Hui Lv et al.   ADVANCED SYNTHESIS & CATALYSIS

N-Heterocyclic Carbene-Mediated Enantioselective Addition of Phenols to Unsymmetrical Alkylarylketenes

(2009) Carmen Concellón et al.   ADVANCED SYNTHESIS & CATALYSIS

Organocatalytic Regio- and Stereoselective Inverse-Electron-Demand Aza-Diels-Alder Reaction of α,β-Unsaturated Aldehydes andN-Tosyl-1-aza-1,3-butadienes

(2009) Bo Han et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Isothiourea-Catalyzed Enantioselective Carboxy Group Transfer

(2009) Caroline Joannesse et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Enantioselective Synthesis of Aza-β-lactams via NHC-Catalyzed [2 + 2] Cycloaddition of Ketenes with Diazenedicarboxylates

(2009) Xue-Liang Huang et al.   JOURNAL OF ORGANIC CHEMISTRY

Enantioselective Synthesis of β-Trifluoromethyl-β-lactones via NHC-Catalyzed Ketene−Ketone Cycloaddition Reactions

(2009) Xiao-Na Wang et al.   ORGANIC LETTERS

Organocatalytic Enantioselective Synthesis of Nitrogen-Substituted Dihydropyran-2-ones, a Key Synthetic Intermediate of 1β-Methylcarbapenems

(2009) Shoji Kobayashi et al.   ORGANIC LETTERS

Enantioselective Organocatalytic Diels-Alder Reactions

(2009) Pedro Merino et al.   SYNTHESIS-STUTTGART

Asymmetric Dimerization of Disubstituted Ketenes Catalyzed by N-Heterocyclic Carbenes

(2008) Hui Lv et al.   ADVANCED SYNTHESIS & CATALYSIS

[4+2] Cycloaddition of Ketenes withN-Benzoyldiazenes Catalyzed by N-Heterocyclic Carbenes

(2008) Xue-Liang Huang et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Organocatalytic Asymmetric Inverse-Electron-Demand Aza-Diels-Alder Reaction ofN-Sulfonyl-1-aza-1,3-butadienes and Aldehydes

(2008) Bo Han et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Lewis Base Catalysis in Organic Synthesis

(2008) Scott E. Denmark et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Tandem multi-step synthesis of C-carboxyazlactones promoted by N-heterocyclic carbenes

(2008) Craig D. Campbell et al.   CHEMICAL COMMUNICATIONS

ChiralN-Heterocyclic Carbene-Catalyzed Formal [4+2] Cycloaddition of Ketenes with Enones: Highly Enantioselective Synthesis oftrans- andcis-δ-Lactones

(2008) Yan-Rong Zhang et al.   CHEMISTRY-A EUROPEAN JOURNAL

Probing the Efficiency of N-Heterocyclic Carbene PromotedO- to C-Carboxyl Transfer of Oxazolyl Carbonates

(2008) Jennifer E. Thomson et al.   JOURNAL OF ORGANIC CHEMISTRY

Formal Cycloaddition of Disubstituted Ketenes with 2-Oxoaldehydes Catalyzed by Chiral N-Heterocyclic Carbenes

(2008) Lin He et al.   JOURNAL OF ORGANIC CHEMISTRY

Amidine catalysed O- to C-carboxyl transfer of heterocyclic carbonate derivatives

(2008) Caroline Joannesse et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

N-Heterocyclic carbene catalysed β-lactam synthesis

(2008) Nicolas Duguet et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Chiral NHC-Catalyzed Oxodiene Diels−Alder Reactions with α-Chloroaldehyde Bisulfite Salts

(2008) Ming He et al.   ORGANIC LETTERS

Proline-Catalyzed Direct Inverse Electron Demand Diels–Alder Reactions of Ketones with 1,2,4,5-Tetrazines

(2008) Hexin Xie et al.   ORGANIC LETTERS

Chiral N-Heterocyclic Carbene Catalyzed Staudinger Reaction of Ketenes with Imines:  Highly Enantioselective Synthesis ofN-Boc β-Lactams

(2007) Yan-Rong Zhang et al.   ORGANIC LETTERS