Cu-Catalyzed [3 + 3] Annulation for the Synthesis of Pyrimidines via β-C(sp<sup>3</sup>)–H Functionalization of Saturated Ketones
作者:Jun-Long Zhan、Meng-Wei Wu、Fei Chen、Bing Han
DOI:10.1021/acs.joc.6b02181
日期:2016.12.2
A novel, efficient, and facile approach for the synthesis of structurally important pyrimidines has been successfully developed by Cu-catalyzed and 4-HO-TEMPO-mediated [3 + 3] annulation of commercially available amidines with saturated ketones. This method provides a new protocol for the synthesis of pyrimidines by a cascade reaction of oxidative dehydrogenation/annulation/oxidative aromatization
通过Cu催化和4-HO-TEMPO介导的[3 + 3]环戊烷与饱和酮的合成,已成功开发出一种新颖,高效且简便的方法,用于合成结构上重要的嘧啶。该方法为氧化嘧啶脱氢/环化/氧化芳构化的级联反应提供了一个新的协议,该反应通过饱和酮的直接β-C(sp 3)-H官能化,然后与am进行环氧化而进行。