<i>o</i>-Amine-Assisted Cannizzaro Reaction of Glyoxal with New 2,6-Diaminoanilines
作者:Yuhki Irie、Yuji Koga、Taisuke Matsumoto、Kouki Matsubara
DOI:10.1002/ejoc.200900079
日期:2009.5
The preparation of several new o-amine-substituted anilines was achieved according to a new bifunctional molecular design, and their reactions with glyoxal were conducted. Cannizzaro reactions of glyoxal proceeded using specifically designed anilines, such as 2,6-dipyrrolidinyl-, 2,6-dipiperidinyl-, 2,6-dimorpholinyl-, and 2-pyrrolidinyl-aniline, which are new and can easily be synthesized by substitution
根据新的双功能分子设计,实现了几种新的邻胺取代苯胺的制备,并进行了它们与乙二醛的反应。乙二醛的 Cannizzaro 反应使用专门设计的苯胺进行,例如 2,6-二吡咯烷基-、2,6-二哌啶基-、2,6-二吗啉基-和 2-吡咯烷基-苯胺,它们是新的并且很容易通过取代合成作为坎尼扎罗反应的结果,卤素取代的硝基苯与胺和随后用氢还原,形成α-羟基乙酰胺和α-氨基乙酰胺衍生物。与乙二醛与对吡咯烷基苯胺反应形成普通二亚胺产物相比,与邻吡咯烷基苯胺反应仅生成α-羟基酰胺,