Cuprous oxide on charcoal-catalyzed ligand-free, synthesis of 1,4-disubstituted 1,2,3-triazoles via click chemistry
作者:Susana Rojas-Lima、Heraclio López-Ruiz、José Emilio de la Cerda-Pedro、Susana Rojas-Lima、Imelda Pérez-Pérez、Brianda Viridiana Rodríguez-Sánchez、Rosa Santillán、Oscar Coreño
DOI:10.3998/ark.5550190.0014.312
日期:——
Cuprous oxide on charcoal (Cu2O/C), the preparation of which is described for the first time, catalyzes the formation of 1,4-disubstituted 1,2,3-triazoles from organic azides and terminal alkynes in good to excellent yields (69-94%). These disubstituted triazoles can be equally efficiently generated in a one-pot process from alkyl bromides, sodium azide, and terminal acetylenes in 50% aqueous isopropanol
木炭上的氧化亚铜 (Cu2O/C) 的制备是首次描述,它催化有机叠氮化物和末端炔烃形成 1,4-二取代的 1,2,3-三唑,产率良好至极好(69 -94%)。这些二取代的三唑可以在含有催化剂悬浮液的 50% 异丙醇水溶液中的烷基溴化物、叠氮化钠和末端乙炔的一锅法中同样有效地生成。这消除了分离潜在爆炸性有机叠氮化物的必要性。