摘要
3-hydroxy-N-(pyrrolidin-2-ylmethyl)-2-naphthamide(化合物Ⅰ)是最近合成的一种有机小分子催化剂,能催化麦克尔非对称加成反应,且具有高产率、高度立体专一性、反应条件易实现等优点.目前普遍认为:在催化过程中该催化剂萘环上的OH和NH与反应物形成氢键.为了研究该过程,合成了tert-butyl 2-((3-hydroxy-2-naphthamido)methyl)pyrrolidine-1-carboxylate(化合物Ⅱ),应用一系列一维和二维核磁共振(NMR)技术对化合物Ⅱ进行了1H1、3C NMR信号归属.为进一步用NMR实验方法研究催化剂与反应物的氢键作用机理奠定了良好基础,同时为类似化合物的NMR信号归属提供了参考依据.
3- ganocatalyst proceeded in (pyrrolidin-2-ylmethylamino) naphthalen-2 (compound Ⅰ) is a new or which can effectively catalyze asymmetric Michael addition. The reactions good to high yield and excellent enantioselectivities. It's generally consid- ered that hydrogen bond is likely formed between the catalyst and the reactant β-nitro- styrene. In the interest of research this process, We synthesized the compound 1-(2- ((3-hydroxynaphthalen-2-ylamino) methyl ) pyrrolidin-l-yl )-2, 2-dimethylpropan-l-one (compound Ⅱ ). In this study, 1D and 2D nuclear magnetic resonance (NMR) experiments were used for the assignments of ^1H and ^13C NMR signals of compound Ⅱ , which may be of help for further investigate the catalyzing mechanism. In addition, may sup- ply reference for assignments of similar chemicals.
出处
《华中师范大学学报(自然科学版)》
CAS
CSCD
2008年第4期562-564,591,共4页
Journal of Central China Normal University:Natural Sciences
基金
湖北省自然科学基金项目(2004ABA118).