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Review: 53 refs. [ABSTRACT FROM AUTHOR]

For the first time, an enantioselective hetero-Diels-Alder reaction of an in situ generated diene with β,γ-unsaturated α-keto esters or α-keto esters is reported. [ABSTRACT FROM AUTHOR]

This one-pot reaction sequence allows the direct synthesis of di- and tetra-brominated products. [ABSTRACT FROM AUTHOR]

Spiro-pseudoindoxyl derivatives with three stereocenters including one quaternary one are formed in high yields, with excellent diastereoselectivities and high enantioselectivities. [ABSTRACT FROM AUTHOR]

Review: [83 refs. [ABSTRACT FROM AUTHOR]

An abstract of the article "A Quadruple Cascade Protocol for the One-Pot Synthesis of Fully-Substituted Hexahydroisoindolinones from Simple Substrates" by Hong-Bo Zhang and colleagues is presented.

An abstract of the article "Enantioselective Amine-Catalyzed [4 + 2] Annulations of Allene Ketones and 2,3-Dioxopyrrolidine Derivatives: Synthesis of 4H-Pyran Derivatives" by S. Zhang and colleagues is presented.

An abstract of the article "Organocatalyzed Asymmetric Vinylogous Allylic-Allylic Alkylation of Morita-Baylis-Hillman Carbonates with Olefinic Azlactones: Facile Access to Chiral Multifunctional α -Amino Acid Derivatives" by S. Zhao and colleagues is presented.

A Sc(OTf)3-catalyzed formal [3 + 3] cycloaddition of cyclopropane dicarboxylates with mercaptoacetaldehyde is developed to produce tetrahydrothiopyranols in good yields. [ABSTRACT FROM AUTHOR]

Review: [46 refs. [ABSTRACT FROM AUTHOR]

An abstract of the article "New Chiral C<1-Symmetric NHC-Catalyzed Addition to α-Aryl Substituted α,β-Disubstituted Enals: Enantioselective Synthesis of Fully Functionalized Dihydropyranones" by Hong Lu and colleagues is presented.

A diagram is presented which explains the molecular structure of organocatalytic Michael-Cyclization of carboxylic acids containing aldehydes.

The first direct vinylogous Michael addition of unmodified linear substrates to α,β-unsaturated aldehydes by employing a rationally designed multifunctional supramolecular iminium catalysis strategy is developed. [ABSTRACT FROM AUTHOR]

By application of the presented protocol a large scope of functionalized pyrroloindolones can be obtained with good yields and enantioselectivities and excellent diastereoselectivity. [ABSTRACT FROM AUTHOR]

A highly enantioselective asymmetric hetero-Diels--Alder reaction is achieved through hydrogen-bond directed γ-addition of olefinic azlactones (II) to isatins (I) in the presence of β-isocupreidine as catalyst. [ABSTRACT FROM AUTHOR]

The Ph3PO-catalyzed reaction of α,β-unsaturated esters (I) and β,γ-unsaturated α-ketoesters (VII) with oxalyl bromide affords trans-dibromides (II) and (VIII), resp., with good to high diastereoselectivity. [ABSTRACT FROM AUTHOR]

Michael-Michael cascade reaction of indole derivatives with nitroalkenes in the presence of cinchona derived bifunctional thiourea catalyst results in the formation of piperidinoindolines with moderate diastereoselectivities and excellent enantioselectivities. [ABSTRACT FROM AUTHOR]

An asymmetric formal [5 + 1] cyclization of oxindoles and ester-tagged bisenones is developed using a bifunctional thiourea catalyst. [ABSTRACT FROM AUTHOR]

The reaction proceeds with excellent yields and nearly complete enantioselectivities (<99% e.e.) and can be carried out on a multi-gram scale. [ABSTRACT FROM AUTHOR]

The article presents chemical reactions related to an article on organocatalytic cascade Sulfa-Michael/Aldol Reactions of β, β Disubstituted Enones by Y. Su which appeared in a 2013 issue of the periodical "Journal of Organic Chemistry".

The enantioselective β-functionalization of aldehydes (I) is successfully achieved by a Saegusa oxidation-Michael addition cascade reaction using palladium(II) acetate and the proline PRL as a catalytic system. [ABSTRACT FROM AUTHOR]

The article presents chemical equations related to the synthesis of oxindole derivatives via 1,3-proton shift and [3 + 2] cycloaddition published in the journal "Chemical Communications" in 2013.

The title reaction provides a mild and efficient approach for the synthesis of the chiral benzopyrans (III) and (VI) with three consecutive stereocenters. [ABSTRACT FROM AUTHOR]

By tandem iminium-enamine activation of enals transformable pyrrole-functionalized cyclobutanes are obtained with high regio-, diastereo- and enantioselectivity. [ABSTRACT FROM AUTHOR]

The title compounds can be easily transformed into various ring-fused tetrahydroquinolines. [ABSTRACT FROM AUTHOR]