Triazabicyclodecene as an Organocatalyst for the Regiospecific Synthesis of 1,4,5-Trisubstituted<i>N</i>-Vinyl-1,2,3-triazoles
作者:Dhevalapally B. Ramachary、Jagjeet Gujral、Swamy Peraka、G. Surendra Reddy
DOI:10.1002/ejoc.201601497
日期:2017.1.18
Herein we report on the 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) catalyzed enolate-mediated regiospecific synthesis of 1,4,5-trisubstituted N-vinyl-1,2,3-triazoles from simple activated carbonyl compounds and N-vinyl azides through [3+2] cycloaddition; upon further hydrogenation, 1,4,5-trisubstituted N-alkyl-1,2,3-triazoles are furnished. Both the organo-click and hydrogenation reactions proceeded
在此,我们报告了 1,5,7-三氮杂双环 [4.4.0]dec-5-烯 (TBD) 催化烯醇介导的 1,4,5-三取代 N-乙烯基-1,2,3-三唑的区域特异性合成由简单的活性羰基化合物和 N-乙烯基叠氮化物通过 [3+2] 环加成;进一步氢化后,得到1,4,5-三取代的N-烷基-1,2,3-三唑。在 25 °C 下,有机点击和氢化反应均在几小时内以高产率和高选择性进行。