Transition Metal-Free α-C(<i>sp</i><sup>3</sup>)H Bond Functionalization of Amines by Oxidative Cross Dehydrogenative Coupling Reaction: Simple and Direct Access to C-4-Alkylated 3,4-Dihydroquinazoline Derivatives
作者:R. Arun Kumar、G. Saidulu、K. Rajendra Prasad、G. Sathish Kumar、B. Sridhar、K. Rajender Reddy
DOI:10.1002/adsc.201200679
日期:2012.11.12
A transition metal-free catalytic system has been developed for the cross dehydrogenative coupling of amines with nitroalkanes under mild condition employing potassium iodide/tert-butyl hydrogen peroxide catalytic system. This methodology was further extended for the construction of biologically important N-heterocycles, namely, 3,4-dihydroquinazoline derivatives. This novel strategy provides a simple
已经开发了一种无过渡金属的催化体系,该体系使用碘化钾/叔丁基过氧化氢催化体系在温和条件下将胺与硝基烷烃进行交叉脱氢偶联。该方法被进一步扩展用于构建生物学上重要的N-杂环,即3,4-二氢喹唑啉衍生物。这种新颖的策略提供了一种简单,有效且直接的获取4-烷基-3,4-二氢喹唑啉衍生物的方法。