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Upstream product

• 1777-56-6 4-chlorobenzoylmethylenetriphenylphosphorane 
• 873-73-4 4-n-chlorophenylacetylene 
• 75-52-5 nitromethane 
• 104-88-1 4-chlorobenzaldehyde 
• 24653-99-4 (2RS,3SR)-2,3-dibromo-3-(4-chlorophenyl)propanoic acid 
• 77295-59-1 1-chloro-4-(2,2-dibromovinyl)benzene 
• 3240-10-6 (4-chlorophenyl)propiolic acid 
• 706-07-0 1-chloro-4-(2-nitrovinyl)benzene 
• 75230-50-1 p-chloroacetophenone tosylhydrazone 
• 99-91-2 para-chloroacetophenone 
• 26086-60-2 2-azido-4'-chloroacetophenone 
• 1576-35-8 toluene-4-sulfonic acid hydrazide 
• 101671-01-6 1-nitro-2-(4-chlorophenyl)ethylene 
• 128256-29-1 C₁₄H₁₂BrClN₂O₂S 

Relevant academic research and scientific papers

Direct Synthesis of 4-Aryl-1,2,3-triazoles via I2-Promoted Cyclization under Metal- And Azide-Free Conditions

We herein report an iodine-mediated formal [2 + 2 + 1] cyclization of methyl ketones, p-toluenesulfonyl hydrazines, and 1-aminopyridinium iodide for preparation of 4-aryl-NH-1,2,3-triazoles under metal- and azide-free conditions. Notably, this is achieved

Access to (Z)-β-Substituted Enamides from N1-H-1,2,3-Triazoles

A direct ring-opening/nucleophilic substitution reaction of N1-H-1,2,3-triazoles has been described. Divergent (Z)-β-halogen- or sulfonyl-substituted enamides could be stereospecifically synthesized in a tunable manner. This strategy might not only enable

A green metal-free "one-pot" microwave assisted synthesis of 1,4-dihydrochromene triazoles

The synthesis of several 4-aryl-1,4-dihydrochromene-triazoles was achieved via a metal-free "one-pot"procedure using PEG400 as the sole solvent in an eco-friendly process. Using microwave irradiation, the triazole derivatives were obtained in good yields and short reaction times starting from readily accessible building blocks.

Sulfonic acid-functionalized magnetic carbon nitride as highly efficient ionic composite for sustainable assembly of 1,2,3-triazoles

Abstract: An efficient and straightforward method for constructing of biologically active 4-aryl-NH-1,2,3-triazoles by the 1,3-dipolar cycloaddition reaction of β-nitrostyrene?and sodium azide in the presence of acidic graphitic carbon nitride (Fe3/

Zinc Oxide Nanoparticles Catalysed One-Pot Three-Component Reaction: A Facile Synthesis of 4-Aryl-NH-1,2,3-Triazoles

Abstract: A facile one-pot, three component reaction has been developed using aldehydes, nitroalkane and sodium azide with zinc oxide nanocatalyst for the synthesis of 4-aryl-NH-1,2,3-triazoles. ZnO nanoparticles with controlled size (15–25?nm) and morpho

Cu-Catalyzed Site-Selective and Enantioselective Ring Opening of Cyclic Diaryliodoniums with 1,2,3-Triazoles

A Cu-catalyzed enantioselective ring-opening/triazolylation reaction is reported. The reaction shows excellent chemoselectivity regarding the three different nitrogen atoms of 1,2,3-triazoles. The optically enriched axially chiral aryl iodides thus obtained were readily derivatized to different types of chiral phosphine ligands and their corresponding copper or palladium complexes.

Iodine-Mediated Condensation–Cyclization of α-Azido Ketones with p-Toluenesulfonyl Hydrazide for Synthesis of 4-Aryl-NH-1,2,3-Triazoles

A molecular iodine mediated condensation–cyclization reaction for the synthesis of 4-aryl-NH-1,2,3-triazoles has been developed from readily available α-azido acetophenones and p-toluenesulfonyl hydrazide. This reaction provides a metal-free strategy for the sequential formation of C–N and N–N bonds in mild condition.

Sulfated tungstate a heterogeneous acid catalyst for synthesis of 4-aryl-NH-1,2,3-triazoles by 1,3-dipolar cycloaddition of nitroolefins with NaN3

A facile and new method for the synthesis of 4-aryl-NH-1,2,3-triazoles from nitroolefins and NaN3 by 1,3-dipolar cycloaddition reaction, employing a mild solid inorganic acid sulfated tungstate as a heterogeneous catalyst, has been developed. T

Metal-Free Cascade [4 + 1] Cyclization Access to 4-Aryl- NH-1,2,3-triazoles from N-Tosylhydrazones and Sodium Azide

A molecular iodine-mediated coupling cyclization reaction for the synthesis of 4-aryl-NH-1,2,3-triazoles has been developed from N-tosylhydrazones and sodium azide. This metal-free cascade [4 + 1] cyclization reaction could rapidly synthesize valuable com

Facile Synthesis of 1,3,5-Triarylbenzenes and 4-Aryl-NH-1,2,3-Triazoles Using Mesoporous Pd-MCM-41 as Reusable Catalyst

We report mesoporous nano-Pd-MCM-41 catalyzed rapid and efficient synthesis of 1,3,5-triarylbenzenes via de-nitrative cyclotrimerization of β-nitrostyrenes. All the reactions were very fast and high yielding. The Pd-MCM-41 was also very effective in catalyzing de-nitrative [3+2] cycloaddition of β-nitrostyrenes with TMSN3 to synthesize 4-aryl-NH-1,2,3-triazoles. The catalyst was reused at least up to eight times with minimum loss of catalytic activity.