School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou, 510006, China.
State Key Laboratory of Natural and Biomimetic Drugs, Peking University , Beijing, 100191, China.
Org Lett. 2017 Nov 17;19(22):6108-6111. doi: 10.1021/acs.orglett.7b02959. Epub 2017 Oct 19.
A simple and efficient protocol for the regioselective synthesis of 5-aminooxazoles is disclosed. The reaction, catalyzed by a cheap Cp*Co(III) catalyst, starts from easily accessible N-(pivaloyloxy)amides and ynamides. Mild reaction conditions, a broad substrate scope, good functional group tolerance, and good to excellent yields were observed.
本文公开了一种 5-氨基恶唑区域选择性合成的简单高效的方法。该反应在廉价的 Cp*Co(III)催化剂的催化下,由易得的 N-(特戊酰氧基)酰胺和炔酰胺起始。反应条件温和,底物适用范围广,官能团容忍性好,产率高。