Palladium‐Catalyzed Selective Three‐Component Tandem Reaction to Bicyclic 1,2,3‐Triazole Derivatives
作者:Xinyu Duan、Xin Huang、Chunling Fu、Shengming Ma
DOI:10.1002/adsc.201901284
日期:2020.2.6
A Pd‐catalyzed highly selective tandem reaction of allenynes, aryl or alkenyl iodides, and sodium azide for the synthesis of bicyclic 1,2,3‐triazole derivatives with a very broad substrate scope including mono‐substituted, 1,3‐disubstituted, and trisubstituted allenynes as well as different types of organic iodides has been reported. Control experiments showed that the reaction went through a cascade
丙二烯,芳基或烯基碘化物和叠氮化钠的Pd催化高选择性串联反应,用于合成具有非常广泛的底物范围的双环1,2,3-三唑衍生物,包括单取代,1,3-二取代和已经报道了三取代的烯丙炔以及不同类型的有机碘。对照实验表明,该反应经历了级联艾伦双官能化/ Winstein烯丙基叠氮化物重排/分子内叠氮化物-炔烃环加成过程。