Another Example of Organo-Click Reactions: TEMPO-Promoted Oxidative Azide-Olefin Cycloaddition for the Synthesis of 1,2,3-Triazoles in Water
作者:Dasari Gangaprasad、John Paul Raj、Tayyala Kiranmye、Kesavan Karthikeyan、Jebamalai Elangovan
DOI:10.1002/ejoc.201601121
日期:2016.12
The water-mediated, metal-free, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) promoted oxidative [3+2] cycloaddition of organic azides with electron-deficient terminal and internal olefins was explored. A library of 1,4-disubstituted and 1,4,5-trisubstituted-1,2,3-triazoles were synthesized in moderate to excellent yields. This method was also found to be compatible not only with open-chain olefins
探索了水介导的无金属 2,2,6,6-四甲基哌啶-1-氧基 (TEMPO) 促进了具有缺电子末端和内烯烃的有机叠氮化物的氧化 [3+2] 环加成。合成了 1,4-二取代和 1,4,5-三取代-1,2,3-三唑的文库,产率中等至极好。还发现该方法不仅与开链烯烃相容,而且与环烯烃相容。