Asymmetric cycloaddition reactions catalyzed by bifunctional thiourea and squaramide organocatalysts: recent advances

Catalytic Enantioselective [5+2] Cycloaddition between Oxidopyrylium Ylides and Enals under Dienamine Activation

(2015) Ane Orue et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Enantioselective Cycloaddition Reactions Catalyzed by BINOL-Derived Phosphoric Acids and N-Triflyl Phosphoramides: Recent Advances

(2015) Felix Held et al.   MOLECULES

Catalytic Asymmetric Tamura Cycloadditions

(2014) Francesco Manoni et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Catalytic Asymmetric Synthesis of 8-Oxabicyclooctanes by Intermolecular [5+2] Pyrylium Cycloadditions

(2014) Michael R. Witten et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Catalytic Asymmetric Synthesis of 4-Nitropyrazolidines: An Access to Optically Active 1,2,3-Triamines

(2014) Lennart Lykke et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Enantioselective Construction of Functionalized Thiopyrano-Indole Annulated Heterocycles via a Formal Thio [3 + 3]-Cyclization

(2014) Xiang Chen et al.   ORGANIC LETTERS

Squaramide Equilibrium Acidities in DMSO

(2014) Xiang Ni et al.   ORGANIC LETTERS

Hydrogen-Bond-Directed Formal [5 + 1] Annulations of Oxindoles with Ester-Linked Bisenones: Facile Access to Chiral Spirooxindole δ-Lactones

(2014) Shuai Zhao et al.   ORGANIC LETTERS

CinchonaAlkaloid-Derived Thiourea-Catalyzed Diastereo- and Enantioselective [3+2] Cycloaddition Reaction of Isocyanoacetates to Isatins: A Facile Access to Optically Active Spirooxindole Oxazolines

(2013) Mei-Xin Zhao et al.   ADVANCED SYNTHESIS & CATALYSIS

Recent Advances in Asymmetric Organocatalytic Construction of 3,3′-Spirocyclic Oxindoles

(2013) Liang Hong et al.   ADVANCED SYNTHESIS & CATALYSIS

Organocatalytic Diastereo- and Enantioselective 1,3-Dipolar Cycloaddition of Azlactones and Methyleneindolinones

(2013) Wangsheng Sun et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Efficient construction of highly functionalized spiro[γ-butyrolactone-pyrrolidin-3,3′-oxindole] tricyclic skeletons via an organocatalytic 1,3-dipolar cycloaddition

(2013) Long Wang et al.   CHEMICAL COMMUNICATIONS

Procedure-Controlled Enantioselectivity Switch in Organocatalytic 2-Oxazolidinone Synthesis

(2013) Yukihiro Fukata et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Enantioselective Formal Aza-Diels–Alder Reactions of Enones with Cyclic Imines Catalyzed by Primary Aminothioureas

(2013) Mathieu P. Lalonde et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Bifunctional primary amine-thioureas in asymmetric organocatalysis

(2013) Olga V. Serdyuk et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Bifunctional Organocatalytic Strategy for Inverse-Electron-Demand Diels-Alder Reactions: Highly Efficient In Situ Substrate Generation and Activation to Construct Azaspirocyclic Skeletons

(2012) Xianxing Jiang et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Enantioselective H-Bond-Directing Approach for Trienamine-mediated Reactions in Asymmetric Synthesis

(2012) Łukasz Albrecht et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Organocatalytic stereocontrolled synthesis of 3,3′-pyrrolidinyl spirooxindoles by [3+2] annulation of isocyanoesters with methyleneindolinones

(2012) Liang-Liang Wang et al.   CHEMICAL COMMUNICATIONS

Asymmetric Synthesis of 1,3-Dioxolanes by Organocatalytic Formal [3 + 2] Cycloaddition via Hemiacetal Intermediates

(2012) Keisuke Asano et al.   ORGANIC LETTERS

A New Class of Enantioselective Catalytic 2-Pyrone Diels-Alder Cycloadditions

(2011) Wanqing Wu et al.   ADVANCED SYNTHESIS & CATALYSIS

Asymmetric Organocatalytic Cyclization and Cycloaddition Reactions

(2011) Albert Moyano et al.   CHEMICAL REVIEWS

Core Structure-Based Design of Organocatalytic [3+2]-Cycloaddition Reactions: Highly Efficient and Stereocontrolled Syntheses of 3,3′-Pyrrolidonyl Spirooxindoles

(2011) Bin Tan et al.   CHEMISTRY-A EUROPEAN JOURNAL

Metal-Free Asymmetric 1,3-Dipolar Cycloaddition of N-Arylmaleimides to Azomethine Ylides Catalyzed by Chiral Tertiary Amine Thiourea

(2011) Jian-Fei Bai et al.   EUROPEAN JOURNAL OF ORGANIC CHEMISTRY

Dual Catalysis in Enantioselective Oxidopyrylium-Based [5 + 2] Cycloadditions

(2011) Noah Z. Burns et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Anticancer compounds derived from fungal endophytes: their importance and future challenges

(2011) Ravindra N. Kharwar et al.   NATURAL PRODUCT REPORTS

One-pot asymmetric cyclocarbohydroxylation sequence for the enantioselective synthesis of functionalised cyclopentanes

(2010) Wilfried Raimondi et al.   CHEMICAL COMMUNICATIONS

Efficient kinetic resolution of racemic 3-nitro-2H-chromene derivatives catalyzed by Takemoto's organocatalyst

(2010) Jian-Wu Xie et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

An elegant approach for stereocontrolled synthesis of furopyran building blocks

(2010) U. Murali Krishna   TETRAHEDRON LETTERS

Asymmetric Organocatalytic Relay Cascades: Catalyst-Controlled Stereoisomer Selection in the Synthesis of Functionalized Cyclohexanes

(2009) Yao Wang et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Chiral Squaramide Derivatives are Excellent Hydrogen Bond Donor Catalysts

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

Englerin A, a Selective Inhibitor of Renal Cancer Cell Growth, fromPhyllanthus engleri

(2008) Ranjala Ratnayake et al.   ORGANIC LETTERS