作者:Andreas P. Häring、Phillip Biallas、Stefan F. Kirsch
DOI:10.1002/ejoc.201601625
日期:2017.3.17
discovered that 2,2-diazido acylacetates, a class of compounds with essentially unknown reactivity, can be coupled to amines through a new strategy that does not involve any reagents. 2,2-Diazido acetate is the unconventional leaving group under carbon–carbon bond cleavage. This reaction leads to the construction of amide bonds, tolerates various functionalities and is performed equally well in numerous
我们发现 2,2-二叠氮基乙酰乙酸酯是一类具有基本未知反应性的化合物,可以通过一种不涉及任何试剂的新策略与胺偶联。2,2-二叠氮乙酸酯是碳-碳键断裂下的非常规离去基团。该反应导致酰胺键的构建,耐受各种官能度,并且在实验简单的条件下在多种溶剂中同样表现良好。我们还证明可以避免 2,2-二叠氮基酰基乙酸酯化合物的分离:在室温下在胺存在下用 (Bu4N)N3 和碘处理酰基乙酸酯时很容易碎裂。通过使用这种方法,具有各种结构基序的多种酰基乙酸酯被直接转化为酰胺。