Synthesis of Pyrrolidines via Palladium(II)-Catalyzed Aerobic Oxidative Carboamination of Butyl Vinyl Ether and Styrenes with Allyl Tosylamides
作者:Christopher C. Scarborough、Shannon S. Stahl
DOI:10.1021/ol061057e
日期:2006.7.1
[Structure: see text] Palladium(II) catalyzes the oxidative coupling of allyl tosylamides with butyl vinyl ether and various styrene derivatives to produce 2,4-substituted pyrrolidine products at room temperature. Molecular oxygen together with a copper(II) cocatalyst mediates reoxidation of the palladium catalyst. The reactions with styrene substrates can be performed in an open flask with ambient
[结构:见正文]钯(II)在室温下催化烯丙基甲苯磺酰胺与丁基乙烯基醚和各种苯乙烯衍生物的氧化偶联,以生产2,4-取代的吡咯烷产物。分子氧与铜(II)助催化剂一起介导钯催化剂的再氧化。与苯乙烯底物的反应可以在开放的烧瓶中以环境空气作为O2的来源进行。几种非传统的助催化剂,包括邻苯二酚,环辛二烯和丙烯酸甲酯,对反应有有益的影响。