Regioselective synthesis of 1,2,3-triazole derivatives via 1,3-dipolar cycloaddition reactions in waterElectronic supplementary information (ESI) available: experimental procedures, elemental analyses and spectroscopic data. See http://www.rsc.org/suppdata/cc/b3/b307084k/
作者:Zhong-Xia Wang、Hua-Li Qin
DOI:10.1039/b307084k
日期:——
Reaction of an arylacetylene with an azide in hot water gave 1,4-disubstituted 1,2,3-triazoles in high yields, while similar reaction between a terminal aliphatic alkyne and an azide (except m-nitroazidobenzene) afforded a mixture of regioisomers with the ratio of 1,4- to 1,5-isomers ranging from 3:1 to 28.6:1. Reactions of m-nitroazidobenzene with either arylalkynes or aliphatic alkynes formed only