68809-45-0

Upstream product

• 84817-32-3 1-Phenyl-5-p-tolyl-4,5-dihydro-1H-[1,2,3]triazole 
• 4186-14-5 1-(2-(trimethylsilyl)ethynyl)toluene 
• 622-37-7 Phenyl azide 
• 62-53-3 aniline 
• 766-97-2 4-n-methylphenylacetylene 
• 101671-00-5 (E)-2-(4-methylphenyl)-1-nitroethene 
• 1453-81-2 1-phenyl-1,2,3-triazole 
• 60655-80-3 (E)-4-methylstyrenyl bromide 
• 14939-05-0 1-phenyl-3-(4-methylphenyl)prop-2-yn-1-one 
• 1025784-74-0 (Z)-3-(4-methylphenyl)-1-phenyl-3-(phenylamino)prop-2-en-1-one 

Relevant academic research and scientific papers

Transition-metal-free regioselective construction of 1,5-diaryl-1,2,3-triazoles through dehydrative cycloaddition of alcohols with aryl azides mediated by SO2F2

A novel, simple and practical method for mild, efficient, cost-effective and regioselective synthesis of highly valuable 1,5-diaryl-1,2,3-triazoles was achieved through dehydrative annulation of readily available alcohols with aryl azides. The reaction proceeded at room temperature, without any metal catalysts, exhibiting excellent compatibility to a large variety of functional groups (>50 examples), resulting in up to quantitative yields. 2019

Regioselective synthesis of 1,5-disubstituted 1,2,3-triazoles by 1,3-dipolar cycloaddition: Role of Er(OTf)3, ionic liquid and water

A simple procedure to obtain 1,5-disubstituted 1,2,3-triazoles, using the Er(OTf)3/[mpy]OTf/H2O catalytic system is described. The reaction proceeds through an eliminative azide–olefin cycloaddition (EAOC) offering a highly regiosele

Palladium-Catalyzed Regioselective C-5 Arylation of 1,2,3-Triazoles with Diaryliodonium Salts

An effective method for C-5 arylation of 1,4-disubstituted 1,2,3-triazoles and C-5 regioselective arylation of 1-substituted 1,2,3-triazoles via sp 2 C-H activation with palladium as a catalyst and diaryliodonium salts as arylating reagents is described. Various electron-rich and electron-deficient substituents attached to triazoles and diaryliodonium salts were tolerable to give the desired products with good isolated yields in 24 hours under air atmosphere.

Base-mediated reaction of vinyl bromides with aryl azides: One-pot synthesis of 1,5-disubstituted 1,2,3-triazoles

A one-pot base-mediated reaction of azides and β- or α-vinyl bromides has been reported. The effects of bases and solvents have been investigated in the process. A variety of 1,5-disubstituted triazoles were prepared in low to good yields. Further studies reveal that the corresponding alkynes were produced as intermediates via elimination reaction. Under the same reaction conditions, the reactions of alkyl alkynes with phenyl azide would give 1,5-disubstituted 1,2,3-triazoles.

A metal-free multicomponent cascade reaction for the regiospecific synthesis of 1,5-disubstituted 1,2,3-triazoles

About specifics: A method for the regiospecific synthesis of the title compounds through an unprecedented Michael addition/deacylative diazo transfer/cyclization sequence has been established. The simple and practical method can be used for the modification of primary amines including chiral α-amines. The process involves the formation three covalent bonds and the cleavage of two covalent bonds (see scheme, Ts=4-toluenesulfonyl).

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

The first example of rare earth metal-catalyzed cycloaddition of terminal alkynes to azides resulting in the formation of 1,5-disubstituted 1,2,3-triazoles is described. Preliminary studies revealed that the present cycloaddition shows unprecedented mecha

Potassium tert-butoxide promoted cycloaddition reaction for the synthesis of 1,5-disubstituted 1,2,3-triazoles from aromatic azides and trimethylsilyl-protected alkynes

The cycloaddition reaction of aromatic azides and trimethylsilyl alkynes upon treatment with desilylating reagents was investigated. In the process, the use of t-BuOK in wet DMF generated 1,5-disubstituted 1,2,3-triazoles regioselectively in moderate to g