1,3-Dipolar cycloadditions of azomethine imines

Stereoselective Lewis base catalyzed formal 1,3-dipolar cycloaddition of azomethine imines with mixed anhydrides

(2015) Lena Hesping et al.   Chemical Science

Synthesis of 2-trifluoromethylpyrazolo[5,1-a]isoquinolines via silver triflate-catalyzed or electrophile-mediated one-pot tandem reaction

(2014) Xiaoli Zhou et al.   Beilstein Journal of Organic Chemistry

Organocatalysed multicomponent synthesis of pyrazolidinones: Meldrum's acid approach

(2014) Etienne Pair et al.   CHEMICAL COMMUNICATIONS

Synthesis and Transformations of Nitrogen Heterocycles in Ionic Liquids (Review)

(2014) N. N. Makhova et al.   Chemistry of Heterocyclic Compounds

Desymmetrization of 1,4-Pentadien-3-ol by the Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Imines

(2014) Mari Yoshida et al.   CHEMISTRY-A EUROPEAN JOURNAL

Amine-Catalyzed Enantioselective 1,3-Dipolar Cycloadditions of Aldehydes to C,N-Cyclic Azomethine Imines

(2014) Wenjun Li et al.   CHEMISTRY-A EUROPEAN JOURNAL

Asymmetric Synthesis of Tetrahydroquinolines through a [3+2] Cycloaddition Controlled by Dienamine Catalysis

(2014) Wenjun Li et al.   CHEMISTRY-A EUROPEAN JOURNAL

Phosphine-Catalyzed [3+2] Cycloaddition Reactions of Azomethine Imines with Electron-Deficient Alkenes: A Facile Access to Dinitrogen-Fused Heterocycles

(2014) Zhen Li et al.   CHEMISTRY-A EUROPEAN JOURNAL

A Phosphine-Catalyzed Novel Asymmetric [3+2] Cycloaddition of C,N-Cyclic Azomethine Imines with δ-Substituted Allenoates

(2014) De Wang et al.   CHEMISTRY-A EUROPEAN JOURNAL

Organocatalytic Asymmetric Inverse-Electron-Demand 1,3-Dipolar Cycloaddition of N,N′-Cyclic Azomethine Imines

(2014) Ren-Yi Zhu et al.   JOURNAL OF ORGANIC CHEMISTRY

Control of the Dual Reactivity (Iminium-Dienamine) of β-Arylmethyl α,β-Unsaturated Aldehydes in Organocatalytic 1,3-Dipolar Cycloadditions with N-Benzoyl C,N-Cyclic Azomethine Imines

(2014) Cristina Izquierdo et al.   JOURNAL OF ORGANIC CHEMISTRY

Enantioselective 1,3-Dipolar Cycloaddition of Azomethine Imines with Propioloylpyrazoles Induced by Chiral π–Cation Catalysts

(2014) Masahiro Hori et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Mechanism and Selectivity of N-Triflylphosphoramide Catalyzed (3+ + 2) Cycloaddition between Hydrazones and Alkenes

(2014) Xin Hong et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

[3 + 3]-Cycloaddition Reactions of α-Acidic Isocyanides with 1,3-Dipolar Azomethine Imines

(2014) Juan Du et al.   ORGANIC LETTERS

Microwave-assisted facile synthesis of [a]-annelated pyrazolopyrroloindoles via intramolecular azomethine imine 1,3-dipolar cycloaddition

(2014) Anand H. Shinde et al.   TETRAHEDRON LETTERS

Cu(I)-catalyzed [3+2] Cycloadditions of tert-Butyl (S)-(3-Oxopent-4- yn-2-yl)carbamate to 1-Benzylidenepyrazole-3-one-derived Azomethine Imines

(2014) Eva Pušavec et al.   ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES

Silver Triflate-Palladium Chloride Cooperative Catalysis in a Tandem Reaction for the Synthesis ofH-Pyrazolo[5,1-a]isoquinolines

(2013) Qing Xiao et al.   ADVANCED SYNTHESIS & CATALYSIS

Enantioselective Copper-Catalyzed [3+3] Cycloaddition of Azomethine Ylides with Azomethine Imines

(2013) Hongchao Guo et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Highly Enantioselective Dearomatizing Formal [3+3] Cycloaddition Reactions ofN-Acyliminopyridinium Ylides with Electrophilic Enol Carbene Intermediates

(2013) Xinfang Xu et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Catalytic Asymmetric 1,3-Dipolar Cycloaddition of Two Different Ylides: Facile Access to Chiral 1,2,4-Triazinane Frameworks

(2013) Min-Chao Tong et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Dipolar addition to cyclic vinyl sulfones leading to dual conformation tricycles

(2013) Steven S Y Wong et al.   Beilstein Journal of Organic Chemistry

Gold catalyzed [3+2] cycloaddition of N-allenyl amides with azomethine imines

(2013) Wen Zhou et al.   CHEMICAL COMMUNICATIONS

Enantioselective 1,3-dipolar cycloaddition of methyleneindolinones and N,N′-cyclic azomethine imines

(2013) Liang Hong et al.   CHEMICAL COMMUNICATIONS

Development of a tailor-made bis(oxazolidine)pyridine–metal catalyst for the [3+2] cycloaddition of azomethine imines with propiolates

(2013) Takayoshi Arai et al.   CHEMICAL COMMUNICATIONS

Dirhodium(ii)-catalyzed formal [3+2+1]-annulation of azomethine imines with two molecules of a diazo ketone

(2013) Xinfang Xu et al.   CHEMICAL COMMUNICATIONS

[4+3] Cycloaddition of in situ generated azoalkenes with C,N-cyclic azomethine imines: efficient synthesis of tetrazepine derivatives

(2013) Xiao-Qiang Hu et al.   CHEMICAL COMMUNICATIONS

Metal Amides as the Simplest Acid/Base Catalysts for Stereoselective Carbon-Carbon Bond-Forming Reactions

(2013) Yasuhiro Yamashita et al.   CHEMISTRY-A EUROPEAN JOURNAL

Nickel(II)-Catalyzed Enantioselective 1,3-Dipolar Cycloaddition of Azomethine Imines with Alkylidene Malonates

(2013) Jiangting Li et al.   CHEMISTRY-A EUROPEAN JOURNAL

Synthesis of Azomethine Imines Using an Intramolecular Alkyne Hydrohydrazination Approach

(2013) Ashley D. Hunt et al.   JOURNAL OF ORGANIC CHEMISTRY

Enantioselective 1,3-Dipolar Cycloaddition of C,N-Cyclic Azomethine Imines to Unsaturated Nitriles Catalyzed by NiII–Pigiphos

(2013) Sandra Milosevic et al.   JOURNAL OF ORGANIC CHEMISTRY

Highly Selective Catalyst-Dependent Competitive 1,2-C→C, -O→C, and -N→C Migrations from β-Methylene-β-silyloxy-β-amido-α-diazoacetates

(2013) Xichen Xu et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Catalytic Asymmetric Three-Component 1,3-Dipolar Cycloaddition of Aldehydes, Hydrazides, and Alkynes

(2013) Takuya Hashimoto et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Unexpected regioselectivities of [3 + 2] cycloaddition of azomethine imines to acrylonitrile and 4-nitrophenyl vinyl sulfone

(2013) Mikhail I. Pleshchev et al.   MENDELEEV COMMUNICATIONS

Highly Diastereoselective DABCO-Catalyzed [3 + 3]-Cycloaddition of 1,4-Dithiane-2,5-diol with Azomethine Imines

(2013) Xin Fang et al.   ORGANIC LETTERS

Base-Catalyzed Diastereoselective [3 + 3] Annulation of 3-Isothiocyanatooxindoles and Azomethine Imines

(2013) Gongming Zhu et al.   ORGANIC LETTERS

Bicyclic Pyrazolidinone Derivatives from Diastereoselective Catalytic [3 + 3]-Cycloaddition Reactions of Enoldiazoacetates with Azomethine Imines

(2013) Yu Qian et al.   ORGANIC LETTERS

Synthesis of 3,3′-Spirocyclic Oxindoles via Phosphine Catalyzed [4 + 2] Cyclizations

(2013) Maxime Gicquel et al.   ORGANIC LETTERS

Phosphine-Catalyzed [4 + 2] Annulation of γ-Substituent Allenoates: Facile Access to Functionalized Spirocyclic Skeletons

(2013) Erqing Li et al.   ORGANIC LETTERS

Catalyst-Free and Stereoselective Synthesis of N,N-Bicyclic Pyrazolidinone Derivatives

(2013) Desuo Yang et al.   SYNTHESIS-STUTTGART

Palladium-catalyzed oxidation of amine in air: an efficient approach to H-pyrazolo[5,1-a]-isoquinolines

(2013) Jie Sheng et al.   TETRAHEDRON

Synthesis of H-pyrazolo[5,1-a]isoquinolines via a silver triflate-catalyzed tandem reaction of N′-(2-alkynylbenzylidene)hydrazide with alcohol

(2013) Wenyan Hao et al.   TETRAHEDRON

A novel and diastereoselective construction of H-pyrazolo[3,2-a]isoquinoline fused spirooxindoles via [3+2] cycloaddition

(2013) Panneerselvam Yuvaraj et al.   TETRAHEDRON LETTERS

Phosphine-Catalyzed [3+2] and [4+3] Annulation Reactions of C,N-Cyclic Azomethine Imines with Allenoates

(2012) Chengfeng Jing et al.   ADVANCED SYNTHESIS & CATALYSIS

Asymmetric Brønsted Acid Catalyzed Cycloadditions-Efficient Enantioselective Synthesis of Pyrazolidines, Pyrazolines, and 1,3-Diamines fromN-Acyl Hyrazones and Alkenes

(2012) Magnus Rueping et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Highly Enantioselective [3+3] Cycloaddition of Aromatic Azomethine Imines with Cyclopropanes Directed by π-π Stacking Interactions

(2012) You-Yun Zhou et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Silver triflate–copper(ii) acetate cooperative catalysis in a cascade reaction for concise synthesis of 2-carbonyl H-pyrazolo[5,1-a]isoquinolines

(2012) Zhiyuan Chen et al.   CHEMICAL COMMUNICATIONS

Phosphine-catalyzed [3 + 2] and [3 + 3] Annulations of Azomethine Imines with Ethyl 2-Butynoate

(2012) Jun Liu et al.   CHEMISTRY LETTERS

Generation of Polyfluoroaryl-Fused H-Pyrazolo[5,1-a]isoquinolines through a Reaction of N′-(2-Alkynylbenzylidene)hydrazide with Polyfluoroarene

(2012) Ling Zhang et al.   Chemistry-An Asian Journal

Highly Efficient Construction of Trifluoromethylated Heterocycles; [3+2] Annulation of N,N′-Cyclic or C,N-Cyclic Azomethine Imines with Trifluoromethyl-Containing Electron-Deficient Olefins

(2012) De Wang et al.   EUROPEAN JOURNAL OF ORGANIC CHEMISTRY

Metal Cocatalyzed Tandem Alkynylative Cyclization Reaction of in Situ Formed N-Iminoisoquinolinium Ylides with Bromoalkynes via C–H Bond Activation

(2012) Ping Huang et al.   JOURNAL OF ORGANIC CHEMISTRY

A Tunable Route for the Synthesis of Azomethine Imines and β-Aminocarbonyl Compounds from Alkenes

(2012) Christian Clavette et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Group 11 Metal Amide-Catalyzed Asymmetric Cycloaddition Reactions of Azomethine Imines with Terminal Alkynes

(2012) Takaki Imaizumi et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Chiral Bis(Imidazolidine)Pyridine-Cu Complex-Catalyzed Enantioselective [3+2]-Cycloaddition of Azomethine Imines with Propiolates

(2012) Takayoshi Arai et al.   MOLECULES

Silver triflate-catalyzed tandem reaction of N′-(2-alkynylbenzylidene)hydrazide with pyridyne

(2012) Lingyong Jiang et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Synthesis of pyrazolo[5,1-a]isoquinolines via silver(i)–rhodium(i) cooperative catalysis in the reaction of N′-(2-alkynylbenzylidene)hydrazide with cycloprop-2-ene-1,1-dicarboxylate

(2012) Liangqing Yao et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Regioselective Synthesis of Pyrazole Triflones Based on Triflyl Alkyne Cycloadditions

(2012) Hiroyuki Kawai et al.   ORGANIC LETTERS

Silver Triflate and Palladium Acetate Co-catalyzed Reaction of N′-(2-Alkynylbenzylidene)hydrazide with N-Allyl Ynamide

(2012) Ping Huang et al.   ORGANIC LETTERS

[5 + 1] Cycloaddition of C,N-Cyclic N′-Acyl Azomethine Imines with Isocyanides

(2012) Takahiro Soeta et al.   ORGANIC LETTERS

An efficient approach to H-pyrazolo[5,1-a]isoquinolines via a silver triflate-catalyzed reaction of N′-(2-alkynylbenzylidene)hydrazide with allenoate

(2012) Liang Gao et al.   TETRAHEDRON

Thermal [3+2] cycloaddition reaction of azomethine imines with allenoates for dinitrogen-fused heterocycles

(2012) Risong Na et al.   TETRAHEDRON

A silver(I)–rhodium(I) cooperative catalysis in the reaction of N′-(2-alkynylbenzylidene)hydrazide with 2-vinyloxirane

(2012) Hongliang Liu et al.   TETRAHEDRON

Allenoate-derived 1,5-, 1,7-, and 1,9-zwitterions as highly versatile coupling-partners for phosphine-triggered cycloaddition reactions

(2012) Wei Meng et al.   Chemical Science

Reaction of N′-(2-alkynylbenzylidene)hydrazide with tertiary amine: a concise synthesis of H-pyrazolo[5,1-a]isoquinolines

(2012) Chao Ye et al.   RSC Advances

Intermolecular and Selective Synthesis of 2,4,5-Trisubstituted Oxazoles by a Gold-Catalyzed Formal [3+2] Cycloaddition

(2011) Paul W. Davies et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Asymmetric Inverse-Electron-Demand 1,3-Dipolar Cycloaddition of C,N-Cyclic Azomethine Imines: An Umpolung Strategy

(2011) Takuya Hashimoto et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

An Efficient, Ligand-Free, Heterogeneous Supported Copper Hydroxide Catalyst for the Synthesis of N,N-Bicyclic Pyrazolidinone Derivatives

(2011) Kazuaki Yoshimura et al.   CHEMISTRY-A EUROPEAN JOURNAL

Phosphine-Catalyzed Annulations of Azomethine Imines: Allene-Dependent [3 + 2], [3 + 3], [4 + 3], and [3 + 2 + 3] Pathways

(2011) Risong Na et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Cascade cyclization, dipolar cycloaddition of azomethine imines for the synthesis of pyrazolidines

(2011) Hélène D. S. Guerrand et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Aryne [3 + 2] cycloaddition with N-sulfonylpyridinium imides and in situ generated N-sulfonylisoquinolinium imides: a potential route to pyrido[1,2-b]indazoles and indazolo[3,2-a]isoquinolines

(2011) Jingjing Zhao et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Highly Regioselective [3 + 2] Annulation of Azomethine Imines with 1-Alkynyl Fischer Carbene Complexes to FunctionalizedN,N-Bicyclic Pyrazolidin-3-ones

(2011) Ning Luo et al.   ORGANIC LETTERS

Synthesis ofH-Pyrazolo[5,1-a]isoquinolines via Copper(II)-Catalyzed Oxidation of an Aliphatic C−H Bond of Tertiary Amine in Air

(2011) Shaoyu Li et al.   ORGANIC LETTERS

Three-Component Reaction ofN′-(2-Alkynylbenzylidene)hydrazide, Alkyne, with Sulfonyl Azide via a Multicatalytic Process: A Novel and Concise Approach to 2-Amino-H-pyrazolo[5,1-a]isoquinolines

(2011) Shaoyu Li et al.   ORGANIC LETTERS

1,3-Dipolar Cycloaddition of Hydrazones with α-Oxo-ketenes: A Three-Component Stereoselective Entry to Pyrazolidinones and an Original Class of Spirooxindoles

(2011) Marc Presset et al.   ORGANIC LETTERS

Stereoselective synthesis of polyoxygenated linear diaza-triquinanes via intramolecular 1,3-dipolar cycloaddition of sugar-derived hex-5-enals

(2011) Yunfeng Li et al.   TETRAHEDRON

Asymmetric organocatalytic cycloadditions

(2011) Hélène Pellissier   TETRAHEDRON

Facile Assembly of H-Pyrazolo[5,1-a]isoquinolines via Silver Triflate-Catalyzed One-Pot Tandem Reaction of 2-Alkynyl- benzaldehyde, Sulfonohydrazide, and Ketone or Aldehyde

(2010) Xingxin Yu et al.   ADVANCED SYNTHESIS & CATALYSIS

Silver triflate-catalyzed three-component reaction of 2-alkynylbenzaldehyde, sulfonohydrazide, and α,β-unsaturated carbonyl compound

(2010) Shengqing Ye et al.   CHEMICAL COMMUNICATIONS

Recent progress in a chiral multinucleating system utilizing tartaric acid esters

(2010) Yutaka Ukaji et al.   CHEMICAL RECORD

Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Imines to Homoallylic Alcohols

(2010) Katsuyoshi Tanaka et al.   CHEMISTRY LETTERS

Tandem Reactions ofN′-(2-Alkynylbenzylidene)hydrazides with Silyl Enolates: A Facile Route toH-Pyrazolo[5,1-a]isoquinolines

(2010) Xingxin Yu et al.   JOURNAL OF COMBINATORIAL CHEMISTRY

Catalytic Enantioselective 1,3-Dipolar Cycloaddition of C,N-Cyclic Azomethine Imines with α,β-Unsaturated Aldehydes

(2010) Takuya Hashimoto et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Ionic liquids as substrate-specific recoverable solvents and catalysts of regio-, stereo- and enantioselective organic reactions

(2010) Sergei G. Zlotin et al.   MENDELEEV COMMUNICATIONS

Efficient Generation of Biologically ActiveH-Pyrazolo[5,1-a]isoquinolines via Multicomponent Reaction

(2010) Zhiyuan Chen et al.   ORGANIC LETTERS

Three-component reaction of N′-(2-alkynylbenzylidene)hydrazide, α,β-unsaturated carbonyl compound, with bromine

(2010) Hui Ren et al.   TETRAHEDRON

An efficient route to diverse H-pyrazolo[5,1-a]isoquinolines via sequential multi-component/cross-coupling reactions

(2010) Xingxin Yu et al.   TETRAHEDRON

Silver Triflate-Catalyzed or Electrophile-Mediated Tandem Reaction ofN′-(2-Alkynylbenzylidene)hydrazides with Dimethyl Acetylenedicarboxylate

(2009) Zhiyuan Chen et al.   ADVANCED SYNTHESIS & CATALYSIS

AgOTf-catalyzed tandem reaction of N′-(2-alkynylbenzylidene)hydrazide with alkyne

(2009) Zhiyuan Chen et al.   CHEMICAL COMMUNICATIONS

NO Cations as Highly Efficient Catalysts for Carbon–Carbon Bond Forming Reactions

(2009) Yasuhiro Yamashita et al.   CHEMISTRY LETTERS

Copper(I) Zeolites as Heterogeneous and Ligand-Free Catalysts: [3+2] Cycloaddition of Azomethine Imines

(2009) Murielle Keller et al.   CHEMISTRY-A EUROPEAN JOURNAL

1,3-Dipolar cycloadditions of (4R*,5R*)-1-alkylidene-4-(benzoylamino)-5-phenyl-3-pyrazolidinon-1-azomethine imines

(2009) Lidija Pezdirc et al.   JOURNAL OF HETEROCYCLIC CHEMISTRY

Gold-Catalyzed [3+3]-Annulation of Azomethine Imines with Propargyl Esters

(2009) Nathan D. Shapiro et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Synthesis of functionalized H-pyrazolo[5,1-a]isoquinolines via sequential reactions of N′-(2-alkynylbenzylidene)hydrazides

(2009) Zhiyuan Chen et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

1,3-Dipolar cycloaddition of arynes with azomethine imines: synthesis of 1,2-dihydropyrazolo[1,2-a]indazol-3(9H)-ones

(2009) Feng Shi et al.   TETRAHEDRON LETTERS

Enantioselective Copper-Catalyzed 1,3-Dipolar Cycloadditions

(2008) Levi M. Stanley et al.   CHEMICAL REVIEWS

Asymmetric 1,3-Dipolar Cycloaddition Reaction of Azomethine Imines to Allyl Alcohol

(2008) Tomomitsu Kato et al.   CHEMISTRY LETTERS

1,3-Dipolar Cycloadditions of Acetylenic Sulfones in Solution and on Solid Supports

(2008) Detian Gao et al.   JOURNAL OF ORGANIC CHEMISTRY

Theory of 1,3-Dipolar Cycloadditions: Distortion/Interaction and Frontier Molecular Orbital Models

(2008) Daniel H. Ess et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Copper(II)-Catalyzed Exo and Enantioselective Cycloadditions of Azomethine Imines

(2008) Mukund P. Sibi et al.   ORGANIC LETTERS

Cycloadditions of Aromatic Azomethine Imines with 1,1-Cyclopropane Diesters

(2008) Christian Perreault et al.   ORGANIC LETTERS

Highly efficient electrophilic cyclization of N′-(2-alkynylbenzylidene)hydrazides

(2008) Qiuping Ding et al.   TETRAHEDRON LETTERS