Synthesis of 1,2,3-triazoles from heterocyclic α-nitro azides
作者:D. V. Katorov、G. F. Rudakov、I. N. Katorova、A. V. Yakushkov、D. P. Simonov、V. F. Zhilin
DOI:10.1007/s11172-012-0296-y
日期:2012.11
Noncatalytic and Cu(I)-catalyzed dipolar cycloadditions of heterocyclic a-nitro azides to substituted alkynes were studied. Catalytic cyclization gave 1,4-disubstituted triazoles only. The effect of the substituents in alkynes and that of the nature of the starting heterocycles on the isomer ratio of triazoles were examined. New representatives of 1,2,3-triazoles were obtained; their physicochemical