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Efficient direct asymmetric vinylogous Michael addition reactions of gamma-butenolides to chalcones catalyzed by vicinal primary-diamine salts.
The first direct organocatalytic asymmetric vinylogous Michael addition reactions of gamma-butenolides to chalcones have been developed by using chiral 1,2-diaminocyclohexane as a novelExpand
Biomimetic dehydrogenative Diels-Alder cycloadditions: total syntheses of brosimones A and B.
Passing (H2) Gas Concise syntheses of the natural products brosimones A and B using sequential dehydrogenative Diels-Alder (DHDA) cycloadditions are reported. The syntheses employ eitherExpand
Asymmetric Syntheses of the Flavonoid Diels-Alder Natural Products Sanggenons C and O.
Metal-catalyzed, double Claisen rearrangement of a bis-allyloxyflavone has been utilized to enable a concise synthesis of the hydrobenzofuro[3,2-b]chromenone core structure of the natural productsExpand
Total Synthesis and Stereochemical Assignment of (±)-Sorbiterrin A
A concise, biomimetic approach to sorbiterrin A has been developed employing consecutive Michael additions of a 4-hydroxypyrone to a sorbicillinol derivative and silver nanoparticle-mediated bridgedExpand
Total Synthesis of Aurofusarin: Studies on the Atropisomeric Stability of Bis-Naphthoquinones.
An efficient annulation involving pyrone addition to a quinone and Dieckmann condensation was developed for rapid assembly of a γ-naphthopyrone monomeric precursor to the bis-naphthoquinone naturalExpand
Primary 1,2-diamine catalysis III: an unexpected domino reaction for the synthesis of multisubstituted cyclohexa-1,3-dienamines.
The first organocatalyzed multicomponent domino reactions of aryl ketones, aldehydes and malononitrile were carried out successfully to afford multisubstituted cyclohexa-1,3-dienamines inExpand
Bicyclic heteroaromatic compounds as immunomodulators
Primary 1,2-Diamine Catalysis III: An Unexpected Domino Reaction for the Synthesis of Multisubstituted Cyclohexa-1,3-dienamines.
The first organocatalyzed multicomponent domino reactions of aryl ketones, aldehydes, and malononitrile are conducted to form multi-substituted cyclohexadienamines in satisfactory yields.
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