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with MBH carbonates (II) leading to chiral oxindole derivatives (III) with good to high enantioselectivity and Z/E-selectivity [ABSTRACT FROM AUTHOR]

Review: [71 refs. [ABSTRACT FROM AUTHOR]

The 3,5-bis(trifluoromethyl)benzyl substituted compound (THU) and the analogous methyl derivative are found to be suitable catalysts for the Michael addition of 3-substituted benzofurans and alkyl 2-phthalimidoacrylates. [ABSTRACT FROM AUTHOR]

The addition of water is crucial for the stereocontrol of the title process providing sulfur containing products in high yields with moderate to high enantioselectivities. [ABSTRACT FROM AUTHOR]

The scalable reaction proceeds with high yields and excellent regio- and stereoselectivity. [ABSTRACT FROM AUTHOR]

An asymmetric Michael reaction of 2-alkyl substituted benzofuran-3(2H)-ones with nitroolefins via bifunctional tertiary-amine squaramide catalysis is developed. [ABSTRACT FROM AUTHOR]

Chiral 3,3′-disubstituted benzofuranones are synthesized from the title addition in excellent yields with very good diastereoselectivities and enantioselectivities. [ABSTRACT FROM AUTHOR]

About 20 target ring structures are prepared from 3-olefinic oxindoles. [ABSTRACT FROM AUTHOR]

Starting from 2-benzylidenebenzofuran-3-ones the synthesis of chiral dihydropyran-fused benzofurans is elaborated. [ABSTRACT FROM AUTHOR]

The article presents chemical equations for the article "Asymmetric Sulfa-Michael Addition to α-Substituted Vinyl Ketones Catalyzed by Chiral Primary Amine" by L. Zhang and others published in "Organic Letters" in 2014.

N,N-Dimethylethylenediamine·TfOH is found to be an efficient catalyst for the direct α-allylic alkylation of unmodified aldehydes with allylic alcohols. [ABSTRACT FROM AUTHOR]

The first example of the enantioselective conjugate addition of alkenes to enones, catalyzed by chiral primary amines are reported.The reaction is enabled by chiral primary amines through a typical iminium ion cycle. [ABSTRACT FROM AUTHOR]

The article presents chemical equations related to the article "Asymmetric Diels-Alder Reaction of 3-Olefinic Benzofuran-2-ones and Polyenals: Construction of Chiral Spirocyclic Benzofuran-2-ones" by X. Li and others, published in the journal "Organic Letters" in 2014.

The reactions of α-substituted vinyl aldehydes are a summary of previous results and are not shown. [ABSTRACT FROM AUTHOR]

The exchange of the metal ion from In(III) to Sc(III) in a binary acid catalyst leads to a switch in the diastereoselectivity of [4 + 2] cycloadditions. [ABSTRACT FROM AUTHOR]

This reaction sequence yields the spiro-products with adjacent quaternary and tertiary stereocenters with excellent enantioselectivities. [ABSTRACT FROM AUTHOR]

The reaction proceeds with moderate to high dia- and high enantioselectivities for the symmetrical and unsymmetrical diaryldienones. [ABSTRACT FROM AUTHOR]

The title reaction affords the desired spirocyclic products (III)/(IV) and (VI)/(VII) in good to high yields and with moderate to good regioselectivities. [ABSTRACT FROM AUTHOR]

Nazarov reaction of aryl vinyl β-ketoesters is optimally catalyzed by a binary acid catalyst consisting of In(OTf)3 and diphenyl phosphoric acid (DPP). [ABSTRACT FROM AUTHOR]

Review: 206 refs. [ABSTRACT FROM AUTHOR]

Qunidine-catalyzed treatment of Boc-protected 3-substituted oxindoles with (arylthio)phthalimides is found to allow a highly enantioselective access to 3-sulfurated derivatives of type (III) and (V) which are of biological and chemical interest. [ABSTRACT FROM AUTHOR]

A bifunctional Cinchona alkaloid-based organocatalyst efficiently catalyzes the asymmetric Michael addition of 3-substituted benzofuranones (I) and (IV) with bis(phenylsulfonyl)ethylene (II). [ABSTRACT FROM AUTHOR]

The amine efficiently promotes the enantioselective formation of the title ketones and related compounds. [ABSTRACT FROM AUTHOR]