Organocatalytic Asymmetric Vinylogous Michael Addition of 3-(2-Oxoindolin-3-ylidene)butanoates to Nitroalkenes Catalyzed by a Bifunctional Cinchona-Based S...

The highly efficient asymmetric vinylogous Michael addition of 3-(2-oxoindolin-3-ylidene)butanoates to nitroalkenes, catalyzed by a cinchona-based squarami...

C Zheng，HF Wang，WQ Chen，... - 《Asian Journal of Organic Chemistry》

Organocatalytic Asymmetric Vinylogous Michael Addition of 3-(2-Oxoindolin-3-ylidene)butanoates to Nitroalkenes Catalyzed by a Bifunctional Cinchona-Based S...

The highly efficient asymmetric vinylogous Michael addition of 3-(2-oxoindolin-3-ylidene)butanoates to nitroalkenes, catalyzed by a cinchona-based squarami...

FE Zheng - 《Asian Journal of Organic Chemistry》

ChemInform Abstract: Organocatalytic Asymmetric Vinylogous Michael Addition of 3-(2-Oxoindolin-3-ylidene)butanoates to Nitroalkenes Catalyzed by a Bifuncti...

An efficient, enantioselective, vinylogous Michael addition of 3-(2-oxoindolin-3-ylidene)butanoates to nitroalkenes is presented which is catalyzed by a ci...

C Zheng，HF Wang，WQ Chen，... - 《Cheminform》

Asymmetric catalysis of Diels-Alder reactions with in situ generated heterocyclic ortho-quinodimethanes.

The Diels-Alder reaction is probably the most powerful technology in the synthetic repertoire for single-step constructions of complex chiral molecules. Th...

Y Liu，M Nappi，E Arceo，... - 《Journal of the American Chemical Society》

Approaches to N-methylwelwitindolinone C isothiocyanate: facile synthesis of the tetracyclic core.

The synthesis of a functionalized, tetracyclic core of N-methylwelwitindolinone C isothiocyanate is reported. The approach features a convergent coupling b...

RW Heidebrecht，B Gulledge，SF Martin - 《Organic Letters》

Diastereoselective Mukaiyama aldol reaction of (N-alkyl) isatins with 2-(trimethylsilyloxy)furan by using lanthanum triflate

An efficient vinylogous Mukaiyama aldol reaction (VMAR) of 2-(trimethylsilyloxy)furan with various (N-alkyl)isatins is described in the presence of lanthan...

Harshadas，Mitaram，Meshram，... - 《Tetrahedron》

Investigation of Spectral Sensitization V. A Study of the Visible and Infrared Spectra of Some Very Pure 2-bis-Benzoxazolyl, 2-bis-Indolinyl, and 2-bis-Qui...

A detailed study of the visible spectra in solution and the infrared spectra in the solid state has been made for the following vinylogous series of cyanin...

A Leifer，D Bonis，M Boedner，... - 《Applied Spectroscopy》

Highly Diastereoselective Vinylogous Mukaiyama Aldol Reaction of Isatins with 2-(Trimethylsilyloxy)furans Catalyzed by Quinine

The diastereoselective formation of 未-hydroxyalkyl butenolide oxindoles has been achieved via a vinylogous Mukaiyama aldol reaction. The reaction was perf...

S Kong，W Fan，H Lyu，... - 《Cheminform》

Vinylogous propargylation of α,α-dicyanoalkenes: construction of an all-carbon quaternary center

The first highly efficient vinylogous propargylation of α,α-dicyanoalkenes catalyzed by a copper catalyst to construct an all-carbon quaternary center wi...

Shuhui Lu，Yujie Zhao，Su Xie，... - 《New Journal of Chemistry》

Enantioselective Organocatalytic Three-Component Vinylogous Michael/Aldol Tandem Reaction among 3-Alkylidene oxindoles, Methyleneindolinones, and Aldehydes

We reported a one-pot enantioselective three-component vinylogous Michael/aldol tandem reaction of prochiral 3-alkylidene oxindoles with methyleneindolinon...

JX Xu，YS Jiang，CH Chen，... - 《Journal of Organic Chemistry》