Determination of enantioselectivity and enantiomeric excess by mass spectrometry in the absence of chiral chromatographic separation: an overview.Unsaturated beta-ketoesters as versatile electrophiles in organocatalysis.Synthesis of new chiral 2,2'-bipyridine ligands and their application in copper-catalyzed asymmetric allylic oxidation and cyclopropanation.Synthetic studies on thiostrepton: construction of thiostrepton analogues with the thiazoline-containing macrocycle.Studies toward diazonamide A: development of a hetero-pinacol macrocyclization cascade for the construction of the bis-macrocyclic framework of the originally proposed structure.A novel regio- and stereoselective synthesis of sulfamidates from 1,2-diols using Burgess and related reagents: a facile entry into beta-amino alcohols.Direct organocatalytic and highly enantio- and diastereoselective Mannich reactions of alpha-substituted alpha-cyanoacetates.The Rabe amination after a century: direct addition of N-heterocycles to carbonyl compounds.Cross-Aldol Reaction of Isatin with Acetone Catalyzed by Leucinol: A Mechanistic Investigation.Quinine-Catalyzed Asymmetric Synthesis of 2,2'-Binaphthol-Type Biaryls under Mild Reaction Conditions.Organocatalytic Regio- and AsymmetricC-Selective SNAr ReactionsStereoselective Synthesis of Optically Active Spiro-pyrrolidone-3,3‘-oxoindolesOrganocatalysis and catalyst aggregation: a study using the asymmetric synthesis of benzofuranones as a test reactionThere is no mass spectrometry evidence that the C14 sample from the Shroud of Turin comes from a “medieval invisible mending”Vicinal Amino Alcohols as Organocatalysts in Asymmetric Cross-Aldol Reaction of Ketones: Application in the Synthesis of Convolutamydine A†Organocatalytic regioselective Michael additions of cyclic enones via asymmetric phase transfer catalysisNon-biaryl atropisomers in organocatalysisOrganocatalytic enantioselective conjugate addition to alkynonesAsymmetric construction of quaternary stereocenters by direct organocatalytic amination of alpha-substituted alpha-cyanoacetates and beta-dicarbonyl compoundsIntriguing behavior of cinchona alkaloids in the enantioselective organocatalytic hydroxyamination of alpha-substituted-alpha-cyanoacetatesOrganocatalytic asymmetric hydroxylation of beta-keto esters: metal-free synthesis of optically active anti-diolsChirally aminated 2-naphthols--organocatalytic synthesis of non-biaryl atropisomers by asymmetric Friedel-Crafts aminationA formidable challenge: catalytic asymmetric dichlorinationSynergic asymmetric organocatalysis (SAOc) of Cinchona alkaloids and secondary amines in the synthesis of bicyclo[2.2.2]octan-2-onesImproved asymmetric S(N)Ar reaction of beta-dicarbonyl compounds catalyzed by quaternary ammonium salts derived from cinchona alkaloidsMultiple catalysis with two chiral units: an additional dimension for asymmetric synthesisNon-asymmetric organocatalysisBiomimetic organocatalytic asymmetric synthesis of 2-substituted piperidine-type alkaloids and their analoguesKinetic resolution of oxazinones: rational exploration of chemical space through the design of experimentsSynthesis of Benzofuranones via Malonates Desymmetrization: Yield Increase by the Portion-wise Addition of QuinonesConstruction of the Complete Aromatic Core of Diazonamide A by a Novel Hetero Pinacol Macrocyclization Cascade Reaction We thank Drs. D. H. Huang and G. Suizdak for NMR spectroscopic and mass spectrometric assistance, respectively. Financial support
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