Novel Synthesis of Difluoromethyl-Containing 1,4-Disubstituted 1,2,3-Triazoles via a Click-Multicomponent Reaction and Desulfanylation Strategy
作者:Jian Zhang、Jingjing Wu、Li Shen、Guanyi Jin、Song Cao
DOI:10.1002/adsc.201000791
日期:2011.3.7
Fourteen difluoromethyl‐containing 1,4‐disubstituted 1,2,3‐triazoles were synthesized via a novel copper‐catalyzed click‐multicomponent reaction of 2,2‐difluoro‐2‐phenylsulfanylethanol, sodium azide and terminal alkynes in the presence of N‐ (p‐toluenesulfonyl)imidazole, tetrabutylammonium iodide and triethylamine, followed by reductive cleavage of the phenylsulfanyl group using tributyltin hydride
十四含有二氟甲基- 1,4-二取代的1,2,3-三唑,合成通过2,2-二氟-2- phenylsulfanylethanol,叠氮化钠和末端炔烃的存在下新颖铜催化的点击多组分反应ñ - (对甲苯磺酰基)咪唑,碘化四丁基铵和三乙胺,然后使用氢化三丁基锡和偶氮二异丁腈还原裂解苯硫烷基。