Base-mediated reaction of vinyl bromides with aryl azides: one-pot synthesis of 1,5-disubstituted 1,2,3-triazoles
作者:Luyong Wu、Yuxue Chen、Jianheng Luo、Qi Sun、Mingsheng Peng、Qiang Lin
DOI:10.1016/j.tetlet.2014.03.029
日期:2014.7
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-disubstituted1,2,3-triazoles.
Transition-metal-free regioselective construction of 1,5-diaryl-1,2,3-triazoles through dehydrative cycloaddition of alcohols with aryl azides mediated by SO<sub>2</sub>F<sub>2</sub>
作者:Xu Zhang、K. P. Rakesh、Hua-Li Qin
DOI:10.1039/c8cc09693g
日期:——
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 developed.
A Metal-Free Multicomponent Cascade Reaction for the Regiospecific Synthesis of 1,5-Disubstituted 1,2,3-Triazoles
作者:Guolin Cheng、Xiaobao Zeng、Jinhai Shen、Xuesong Wang、Xiuling Cui
DOI:10.1002/anie.201307499
日期:2013.12.9
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
Palladium-Catalyzed Regioselective C-5 Arylation of 1,2,3-Triazoles with Diaryliodonium Salts
作者:Zhengyin Du、Hua Feng、Fangli Gang、Yang Che、Ying Fu
DOI:10.1055/s-0036-1588815
日期:2017.8
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 sp2 C–H activation with palladium as a catalyst and diaryliodoniumsalts as arylating reagents is described. Various electron-rich and electron-deficient substituents attached to triazoles and diaryliodoniumsalts were tolerable to give the desired products
Potassium tert-Butoxide Promoted Cycloaddition Reaction for the Synthesis of 1,5-Disubstituted 1,2,3-Triazoles from Aromatic Azides and Trimethylsilyl-Protected Alkynes
作者:Luyong Wu、Yuxue Chen、Mi Tang、Xinming Song、Guangying Chen、Xiaoping Song、Qiang Lin
DOI:10.1055/s-0031-1291042
日期:2012.6
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-disubstituted1,2,3-triazoles regioselectively in moderate to good yields at ambient temperature.