[4+3] Cycloaddition of in situ generated azoalkenes with C,N-cyclic azomethine imines: efficient synthesis of tetrazepine derivatives
作者:Xiao-Qiang Hu、Jia-Rong Chen、Shuang Gao、Bin Feng、Liang-Qiu Lu、Wen-Jing Xiao
DOI:10.1039/c3cc43888k
日期:——
An unprecedented [4+3] cycloaddition of in situ generated azoalkenes with C,N-cyclic azomethine imines has been developed without the use of any catalyst, providing an efficient and mild approach to synthesise highly functionalized 1,2,4,5-tetrazepine derivatives in high yields (76-92%).
在不使用任何催化剂的情况下,已开发出前所未有的[4 + 3]与C,N-环偶氮甲亚胺就地生成的偶氮烯烃环加成反应,为合成高度官能化的1,2,4,5-四氮杂苯提供了有效而温和的方法衍生物的高收率(76-92%)。