作者:Ming-Yang Xiao、Meng-Meng Zheng、Xing Peng、Xiao-Song Xue、Fa-Guang Zhang、Jun-An Ma
DOI:10.1021/acs.orglett.0c03025
日期:2020.10.2
Cyano-tetrazole is the first reported compound that bears four nitrogen atoms in a single five-membered ring. This unique molecular scaffold has long been ignored after its discovery in 1885, mainly attributed to the scarcity of available synthetic methods. Indeed, the most popular approach to tetrazoles (that is the cycloaddition reaction between nitriles and azides) has inevitably excluded the possibility
氰基四唑是第一个报道的在一个五元环上带有四个氮原子的化合物。这种独特的分子支架在1885年被发现后就一直被人们忽略,这主要归因于缺乏可用的合成方法。确实,最流行的四唑方法(即腈与叠氮化物之间的环加成反应)不可避免地排除了引入有价值的氰基来修饰最终杂环核的可能性。在这里,我们通过容易获得的芳基重氮盐和重氮乙腈之间的简单,直接和实用的环加成转化,描述了与长时间追求的氰基-四唑完全不同的分离策略。