Powerful Approach to Heterocyclic Skeletal Diversity by Sequential Three-Component Reaction of Amines, Isothiocyanates, and 1,2-Diaza-1,3-dienes
作者:Orazio A. Attanasi、Silvia Bartoccini、Gianfranco Favi、Gianluca Giorgi、Francesca Romana Perrulli、Stefania Santeusanio
DOI:10.1021/jo2021949
日期:2012.1.20
By highly efficient, one-pot, three-component reactions, combining one set of 1,2-diaza-1,3-dienes (DDs), primary amines, and isothiocyanates in a different sequential order of addition, heterocyclic skeletal diversity can be achieved. The key feature discriminating the different heterocyclic core formation is the availability of the N or S heteronucleophile to give the first Michael addition step
通过高效的一锅三组分反应,将一组1,2-二氮杂-1,3-二烯(DDs),伯胺和异硫氰酸酯按不同的顺序添加,可以实现杂环骨架多样性实现。区分不同杂环核心形成的关键特征是N或S异源亲核试剂可用于提供第一步迈克尔加成步骤,从而提供区域选择性取代的2-硫代乙内酰脲或2-iminothiazolidinones。两个杂环的5位上的或enehydrazino侧链代表有价值的功能,可达到难以通过其他方法获得的新型5-羟基亚乙基衍生物。