Zheng Chen, Wang Yu, Fan Renhua
Department of Chemistry, Fudan University , 220 Handan Road, Shanghai 200433, China.
Org Lett. 2015 Feb 20;17(4):916-9. doi: 10.1021/acs.orglett.5b00026. Epub 2015 Feb 6.
A PhIO/Bu4NI-mediated oxidative cross-coupling reaction between enamines and propargylamines under metal-free conditions has been developed. Bu4NI works as an activator of PhIO. The resulting coupling products are ready to undergo copper(II)-mediated electrophilic cyclization to form highly substituted 3-pyrrolines.
已开发出一种在无金属条件下,由二(4-碘苯基)碘鎓盐(PhIO)/四丁基碘化铵(Bu4NI)介导的烯胺与炔丙胺之间的氧化交叉偶联反应。Bu4NI作为PhIO的活化剂。所得的偶联产物可直接进行铜(II)介导的亲电环化反应,以形成高度取代的3-吡咯啉。