1 Synthesis of bi- and bis-1,2,3-triazoles by copper-catalyzed Huisgen cycloaddition: A family of valuable products by click chemistry.

2 Novel heterocyclic chitosan derivatives and their derived nanoparticles: Catalytic and antibacterial properties.

3 A theoretical study on the metal-free triazole formation through tandem [3+2] cycloaddition/retro-Diels-Alder reaction of benzyl azide and oxanorbornadienedicarboxylate.

4 novel one-pot green synthesis of indolizines biocatalysed by candida antarctica lipases

5 multifaceted strategy for the synthesis of diverse 2,2'-bithiophene derivatives

6 synthesis of bicyclic isoxazoles and isoxazolines via intramolecular nitrile oxide cycloaddition

7 an experimental and quantumchemical study of [2+3] cycloaddition between (z)-c-(m,m,p-trimethoxyphenyl)-n-(p-methyphenyl)-nitrone and (e)-3,3,3-trichloro-1-nitroprop-1-ene: mechanistic aspects

8 computational and spectral investigation of 5,12-dihydro-5,12-ethanonaphthacene-13-carbaldehyde

9 Intracellular dark-field imaging of ATP and photothermal therapy using a colorimetric assay based on gold nanoparticle aggregation via tetrazine/trans-cyclooctene cycloaddition.

10 Enamine/enolate-mediated organocatalytic azide- Carbonyl [3+2] cycloaddition reactions for the synthesis of densely functionalized 1,2,3-triazoles

11 An enolate-mediated organocatalytic Azide-Ketone [3+2]-cycloaddition reaction: Regioselective high-yielding synthesis of fully decorated 1,2,3-Triazoles

12 P -toluenesulfonic acid mediated 1,3-dipolar cycloaddition of nitroolefins with NaN 3 for synthesis of 4-Aryl- NH -1,2,3-triazoles

13 2,5-Dihydro-1,2,3-triazine derivatives from attempted 1,3-dipolar cycloaddition of 1,2,3-triazole N-oxides with dimethyl acetylenedicarboxylate: A new ring expansion

14 Zur Regio‐ und Stereoselektivität neuer thermischer [3 + 2]‐Cycloadditionen mesoionischer 1,3‐Oxathiol‐4‐one an Alkine und Alkene

15 Ein neuer Zugang zu Alkylthio(trifluoracetyl)furanen durch thermische [3 + 2]‐Cycloadditionen neuer mesoionischer 1,3‐Oxathiol‐4‐one an Alkine

16 Quantum chemical studies on the mechanistic aspects of tandem sequential cycloaddition reactions of cyclooctatetraene with ester and nitrones

17 Nitrous Oxide-Promoted Pauson-Khand Cycloadditions.

18 INVESTIGATION OF PYRIDINE-CATALYZED HUISGEN CYCLOADDITION REACTIONS IN NICOTINE-BASED TASK SPPECIFIC IONIC LIQUID

19 INVESTIGATION OF PYRIDINE-CATALYZED HUISGEN CYCLOADDITION REACTIONS IN NICOTINE-BASED TASK SPPECIFIC IONIC LIQUID

20 Studies toward the Total Synthesis of Parvifolals A/B: An Intramolecular o‑Quinone Methide [4 + 2]-Cycloaddition To Construct the Central Tetracyclic Core

21 A molecular electron density theory study on the [3+2] cycloaddition reaction of 5,5-dimethyl-1-pyrroline N-oxide with 2-cyclopentenone.

22 Visible-Light-Induced Oxidation/[3 + 2] Cycloaddition/Oxidative Aromatization to Construct Benzo[]carbazoles from 1,2,3,4-Tetrahydronaphthalene and Arylhydrazine Hydrochlorides.

23 Divergent synthesis of chiral cyclic azides via asymmetric cycloaddition reactions of vinyl azides

24 Ultrasound-assisted Cu(I)-catalyzed azide-alkyne click cycloaddition as polymer-analogous transformation in chitosan chemistry. High antibacterial and transfection activity of novel triazol betaine chitosan derivatives and their nanoparticles

25 Facile immobilization of copper(I) acetate on silica: A recyclable and reusable heterogeneous catalyst for azide–alkyne clickable cycloaddition reactions

26 Synthesis, characterization, and investigation of catalytic activity of copper(II) porphyrin graphene oxide for azide–alkyne cycloaddition

27 Intramolecular azide-alkene cycloaddition-elimination reaction in an aldohex-2-enonic acid derivative

28 Benzyne-azide polycycloaddition: A facile route toward functional polybenzotriazoles

29 CF3-Substituted Pyrazolines and Pyrazoles via Huisgen Cycloaddition

30 Ultra-selective p-xylene production through cycloaddition and dehydration of 2,5-dimethylfuran and ethylene over tin phosphate

31 Synthesis of 1,4,5-trisubstituted triazoles by [3+2] cycloaddition of a ruthenium azido complex with ynoate esters

32 Mechanistic Studies of CO Cycloaddition Reaction Catalyzed by Amine-Functionalized Ionic Liquids.

33 Ab initio study of mechanism of forming a Si-heterocyclic spiro-Sn-heterocyclic ring compound by cycloaddition reaction of Me2Si=Sn: and ethene

34 Ab Initio Study of Mechanism of Forming a Si-heterocyclic Spiro-Sn-heterocyclic Ring Compound by Cycloaddition Reaction of Cl2Si=Sn: And ethylene①

35 Synthesis of 1,4,5-Trisubstituted-1,2,3-triazoles by Copper-Catalyzed Cycloaddition-Coupling of Azides and Terminal Alkynes.

36 Synthesis of 1,4,5-trisubstituted-1,2,3-triazoles by copper-catalyzed cycloaddition-coupling of azides and terminal alkynes

37 ChemInform Abstract: Direct Access to 1,4-Disubstituted 1,2,3-Triazoles Through Organocatalytic 1,3-Dipolar Cycloaddition Reaction of α,β-Unsaturated Esters with Azides.

38 Direct access to 1,4-disubstituted 1,2,3-triazoles through organocatalytic 1,3-dipolar cycloaddition reaction of α,β-unsaturated esters with azides

39 ChemInform Abstract: And If Everything Was as Easy as a “Click”: Cu(I)-Catalyzed 1,3-Dipolar Cycloaddition Between Terminal Alkynes and Azides

40 (NHC)Copper(I)-Catalyzed [3 + 2] Cycloaddition of Azides and Mono- or Disubstituted Alkynes.

41 ChemInform Abstract: Regioselective Formation of 2,5-Disubstituted Oxazoles via Copper(I)-Catalyzed Cycloaddition of Acyl Azides and 1-Alkynes.

42 ChemInform Abstract: Ln[N(SiMe3)2]3-Catalyzed Cycloaddition of Terminal Alkynes to Azides Leading to 1,5-Disubstituted 1,2,3-Triazoles: New Mechanistic Features.

43 Ln[N(SiMe3)2]3-catalyzed cycloaddition of terminal alkynes to azides leading to 1,5-disubstituted 1,2,3-triazoles: new mechanistic features

44 RuH2(CO)(PPh3)3 Catalyzed Selective Formation of 1,4-Disubstituted Triazoles from Cycloaddition of Alkynes and Organic Azides

45 Advances in 1,3-Dipolar Cycloaddition Reaction of Azides and Alkynes: A Prototype of “Click” Chemistry

46 Highlights in Organic Chemistry Advances in 1,3-Dipolar Cycloaddition Reaction of Azides and Alkynes - A Prototype of “Click” Chemistry

47 ChemInform Abstract: Ruthenium-Catalyzed Cycloaddition of Aryl Azides and Alkynes.

48 A Study of the Scope and Regioselectivity of the Ruthenium-Catalyzed [3 + 2]-Cycloaddition of Azides with Internal Alkynes.

49 Ruthenium-Catalyzed Cycloaddition of Alkynes and Organic Azides.

50 Electronic effects of ruthenium-catalyzed [3+2]-cycloaddition of alkynes and azides

51 Ruthenium-Catalyzed Cycloaddition of Aryl Azides and Alkynes

52 Potassium tert-Butoxide Promoted Cycloaddition Reaction for the Synthesis of 1,5-Disubstituted 1,2,3-Triazoles from Aromatic Azides and Trimethylsilyl-Protected Alkynes

53 ChemInform Abstract: Potassium tert-Butoxide Promoted Cycloaddition Reaction for the Synthesis of 1,5-Disubstituted 1,2,3-Triazoles from Aromatic Azides and Trimethylsilyl-Protected Alkynes.

54 Enantiopure 1,2,3-triazolyl-β-amino acids via click cycloaddition reaction on racemic alkynyl precursors followed by separation of stereoisomers.

55 Fused polycyclic compounds via cycloaddition of 4-(1'-cyclohexenyl)-5-iodo-1,2,3-triazoles with 4-phenyl-1,2,4-triazoline-3,5-dione: the importance of a sacrificial iodide leaving group.

56 Fused polycyclic compounds via Cycloaddition of 4-(1′-Cyclohexenyl)- 5-iodo-1,2,3-triazoles with 4-phenyl-1,2,4-triazoline-3,5-dione: The importance of a sacrificial iodide leaving group

57 Regiospecific synthesis by copper- and ruthenium-catalyzed azide–alkyne 1,3-dipolar cycloaddition, anticancer and anti-inflammatory activities of oleanolic acid triazole derivatives

58 A new route to 1,2,3-triazole fused benzooxazepine and benzodiazepine analogues through metal-free intramolecular azide-olefin oxidative cycloaddition

59 Synthesis of Isoxazole and 1,2,3-Triazole Isoindole Derivatives via Silver- and Copper-Catalyzed 1,3-Dipolar Cycloaddition Reaction

60 [8+3]-Cycloaddition of Tropones with Azaoxyallyl Cations.

61 Sequencing [4+1]-Cycloaddition and Aza-Michael Addition Reactions: A Diastereoselective Cascade for the Rapid Access of Pyrido[2',1':2,3]/Thiazolo[2',3':2,3]imidazo[1,5-a]quinolone Scaffolds as Potential Antibacterial and Anticancer Motifs.

62 Exploiting Synergistic Catalysis for an Ambient Temperature Photocycloaddition to Pyrazoles.

63 Synthesis of 1-Pyrazol-5-yl-pyridin-2-yl-[1,2,4]triazinyl Soft-Lewis Basic Complexants via Metal and Oxidant Free [3 + 2] Dipolar Cycloaddition of Terminal Ethynyl Pyridines with Tosylhydrazides.

64 Synthesis of Dihydropyrano[3,2-c]pyrazolone through 1,3-Dipolar Cycloaddition of Nitrilimines with Methyl Coumalate

65 A Calix[4]resorcinarene-Based [Co] Coordination Cage for Highly Efficient Cycloaddition of CO to Epoxides.

66 Enantioselective Synthesis of Fused Polycyclic Tropanes via Dearomative [3 + 2] Cycloaddition Reactions of 2-Nitrobenzofurans.

67 Correction: A formal [4 + 2] cycloaddition of sulfur-containing alkylidene heterocycles with allenic compounds (Organic Chemistry Frontiers (2019) 6 (3259-3263) DOI: 10.1039/C9QO00886A)

68 Facile synthesis of a luminescent copper(I) coordination polymer containing a flexible benzotriazole-based ligand: An effective catalyst for three-component azide-alkyne cycloaddition

69 Unexpected Reactions of Terminal Alkynes in Targeted "Click Chemistry'' Coppercatalyzed Azide-alkyne Cycloadditions.

70 Push-pull nitronates in the [3+2] cycloaddition with nitroethylene: Molecular Electron Density Theory study.

71 High-Pressure Cycloaddition Reactions in the Synthesis of Biologically Relevant Heterocycles

72 Ultrasound-assisted synthesis of a benzimidazole-containing Zn(II) coordination polymer as highly effective Lewis acid catalyst for cycloaddition of epoxides with CO2

73 Understanding the 1,3-Dipolar Cycloadditions of Allenes.

74 Reaction Mechanisms on [3 + 2] Cycloaddition of Azides with Metal Carbyne Complexes: Significant Effects of Aromaticity, Substituent, and Metal Center.

75 Functionalization of maleimide-coated silver nanoparticles through Diels–Alder cycloaddition

76 synthesis of 2-(9,10-dihydro-9,10-propanoanthracen-9-yl)-n-methylethanamine via a [4+2] cycloaddition

77 synthesis with perfect atom economy: generation of furan derivatives by 1,3-dipolar cycloaddition of acetylenedicarboxylates at cyclooctynes

78 dft studies on the stereoselectivity of α-silyloxy diazoalkane cycloadditions

79 a facile synthesis of functionalized dispirooxindole derivatives via a three-component 1,3-dipolar cycloaddition reaction

80 cycloaddition reaction of ethyl thioxoacetate and the dienamine derived from pummerer's ketone

81 new spiro (thio) barbiturates based on cyclohexanone and bicyclo [3.1.1]heptan-6-one by nonconcerted [1+5] cycloaddition reaction and their conformational structures

82 synthesis of pyrrolo[2,1-a]isoquinolines by multicomponent 1,3-dipolar cycloaddition

83 diastereoselective [2+2] photocycloaddition of chiral cyclic enones with olefins in aqueous media using surfactants

84 reactive energetic plasticizers utilizing cu-free azide-alkyne 1,3-dipolar cycloaddition for in-situ preparation of poly(thf-co-gap)-based polyurethane energetic binders

85 synthesis of (2r,5r)-2-amino-5-hydroxyhexanoic acid by intramolecular cycloaddition

86 1,3-dipolar cycloadditions of n-benzyl furfuryl nitrones with electron-rich alkenes

87 quantum chemical study of reaction mechanism of [4+2]-cycloaddition between 2,3-dimethylbuta-1,3-diene and methyl acrylate

88 Nonstoichiometric copper chalcogenides for photo-activated alkyne/azide cycloaddition

89 Nonstoichiometric copper chalcogenides for photo-activated alkyne/azide cycloaddition

90 [3 + 3]-Cycloaddition of α-Diazocarbonyl Compounds and N-Tosylaziridines: Synthesis of Polysubstituted 2 H-1,4-Oxazines through Synergetic Catalysis of AgOTf/Cu(OAc).

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