Organocatalytic enantioselective construction of isatin-derived N-alkoxycarbonyl 1,3-aminonaphthols via sterically encumbered hydrocarbon-substituted quinine-based squaramide

A highly enantioselective Friedel–Crafts reaction of 3,5-dimethoxylphenol with nitroolefins mediated by a bifunctional quinine derived thiourea catalyst

(2017) Xiaoyu Han et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Squaramide-Catalyzed Enantioselective Cascade Approach to Bispirooxindoles with Multiple Stereocenters

(2016) Bo-Liang Zhao et al.   ADVANCED SYNTHESIS & CATALYSIS

Asymmetric Synthesis of Spiro β-Lactamsviaa Squaramide- Catalyzed Sulfa-Michael Addition/Desymmetrization Protocol

(2016) Pankaj Chauhan et al.   ADVANCED SYNTHESIS & CATALYSIS

Stereoselective Organocatalyzed Synthesis of α-Fluorinated β-Amino Thioesters and Their Application in Peptide Synthesis

(2016) Elena Cosimi et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Organocatalytic cascade Michael/Michael reaction for the asymmetric synthesis of spirooxindoles containing five contiguous stereocenters

(2016) Bo-Liang Zhao et al.   CHEMICAL COMMUNICATIONS

Asymmetric Assembly of All-Carbon Tertiary/Quaternary Nonadjacent Stereocenters through Organocatalytic Conjugate Addition of α-Cyanoacetates to a Methacrylate Equivalent

(2016) Igor Iriarte et al.   CHEMISTRY-A EUROPEAN JOURNAL

Diastereo- and Enantioselective Synthesis of Spiro-Pyrrolidine-Pyr­azolones by Squaramide-Catalyzed Cascade Aza-Michael/Michael Reactions

(2016) Jun-Hua Li et al.   EUROPEAN JOURNAL OF ORGANIC CHEMISTRY

Synthesis of hydrazinoheterocycles from Morita–Baylis–Hillman adducts of nitroalkenes with azodicarboxylates

(2016) Vaijinath Mane et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Organocatalytic asymmetric Michael addition of α-alkylidene succinimides to nitrostyrenes

(2016) Bo-Liang Zhao et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Catalytic Asymmetric Conjugate Addition of Carboxylic Acids via Oxa-Michael Reaction of Peroxy Hemiacetals followed by Kornblum DeLaMare Fragmentation

(2016) Biswajit Parhi et al.   ORGANIC LETTERS

A Combination of Metal and Organic Catalysis: Highly Diastereo- and Enantioselective Construction of Fluorinated 2-Aminocyclopenta[b]pyran Derivatives

(2015) Jiahuan Peng et al.   ADVANCED SYNTHESIS & CATALYSIS

Organocatalytic Asymmetric Addition of Naphthols and Electron-Rich Phenols to Isatin-Derived Ketimines: Highly Enantioselective Construction of Tetrasubstituted Stereocenters

(2015) Marc Montesinos-Magraner et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Organocatalytic Asymmetric Michael/Cyclization Cascade Reactions of 3-Hydroxyoxindoles/3-Aminooxindoles with α,β-Unsaturated Acyl Phosphonates for the Construction of Spirocyclic Oxindole-γ-lactones/lactams

(2015) Lin Chen et al.   JOURNAL OF ORGANIC CHEMISTRY

Cinchona Alkaloid Squaramide-Catalyzed Asymmetric Michael Addition of α-Aryl Isocyanoacetates to β-Trifluoromethylated Enones and Its Applications in the Synthesis of Chiral β-Trifluoromethylated Pyrrolines

(2015) Mei-Xin Zhao et al.   JOURNAL OF ORGANIC CHEMISTRY

Modularly Evolved 2-AminoDMAP/Squaramides as Highly Active Bifunctional Organocatalysts in Michael Addition

(2015) Murat Işık et al.   JOURNAL OF ORGANIC CHEMISTRY

The origin for highly enantioselective induction of 1-naphthol to isatin-derived N-Boc ketimines catalyzed by quinine thiourea catalyst: an experimental and computational study

(2015) Prathibha kumari et al.   RSC Advances

Enantioselective Michael Addition of Nitroalkanes to Nitroalkenes Catalyzed by Chiral Bifunctional Quinine-Based Squaramides

(2015) Esra Kanberoğlu et al.   Asian Journal of Organic Chemistry

Organocatalytic Enantioselective Strecker Reaction of Imines Containing a Thiazole Moiety by Using a Cinchona-Based Squaramide Catalyst

(2014) Hai-Xiao He et al.   EUROPEAN JOURNAL OF ORGANIC CHEMISTRY

An Organocatalytic Michael–Michael Cascade for the Enantioselective Construction of Spirocyclopentane Bioxindoles: Control of Four Contiguous Stereocenters

(2014) Wangsheng Sun et al.   ORGANIC LETTERS

Highly enantioselective Mannich reactions of imines with tert-butyl acetoacetate catalyzed by squaramide organocatalyst

(2014) Hai-Xiao He et al.   TETRAHEDRON-ASYMMETRY

Organocatalytic Asymmetric Assembly Reactions: Synthesis of Spirooxindoles via Organocascade Strategies

(2014) Daojuan Cheng et al.   ACS Catalysis

Cinchona Alkaloid Squaramide Catalyzed Enantioselective Hydrazination/Cyclization Cascade Reaction of α-Isocyanoacetates and Azodicarboxylates: Synthesis of Optically Active 1,2,4-Triazolines

(2013) Mei-Xin Zhao et al.   JOURNAL OF ORGANIC CHEMISTRY

Squaramide-Catalyzed Enantioselective Michael Addition of Masked Acyl Cyanides to Substituted Enones

(2013) Kin S. Yang et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Chiral squaramide-catalysed one-pot enantioselective sulfa-Michael addition/thioesterification of thiols with α,β-unsaturated N-acylated succinimides

(2013) Bo-Liang Zhao et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Regiospecific synthesis of arenofurans via cascade reactions of arenols with Morita–Baylis–Hillman acetates of nitroalkenes and total synthesis of isoparvifuran

(2013) Tarun Kumar et al.   TETRAHEDRON

Squaramide-catalysed enantionselective Mannich reaction of imines bearing a heterocycle with malonates

(2013) Hai-Xiao He et al.   RSC Advances

Synthesis of N-Alkoxycarbonyl Ketimines Derived from Isatins and Their Application in Enantioselective Synthesis of 3-Aminooxindoles

(2012) Wenjin Yan et al.   ORGANIC LETTERS

Syntheses, transformations and applications of aminonaphthol derivatives prepared via modified Mannich reactions

(2012) István Szatmári et al.   TETRAHEDRON

Squaramides: Bridging from Molecular Recognition to Bifunctional Organocatalysis

(2011) José Alemán et al.   CHEMISTRY-A EUROPEAN JOURNAL

Highly Enantioselective Michael Addition of Nitroalkanes to Chalcones Using Chiral Squaramides as Hydrogen Bonding Organocatalysts

(2010) Wen Yang et al.   ORGANIC LETTERS

Chiral Squaramide Derivatives are Excellent Hydrogen Bond Donor Catalysts

(2008) Jeremiah P. Malerich et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Bromoethylsulfonium SaltA More Effective Annulation Agent for the Synthesis of 6- and 7-Membered 1,4-Heterocyclic Compounds

(2008) Muhammad Yar et al.   ORGANIC LETTERS