Generally applicable and efficient oxidative Heck reaction of arylboronic acids with olefins catalyzed by cyclopalladated ferrocenylimine under base- and ligand-free conditions
作者:Yuting Leng、Fan Yang、Kun Wei、Yangjie Wu
DOI:10.1016/j.tet.2009.12.027
日期:2010.2
A mild and efficient method for oxidative Heck-type reaction of arylboronic acids with olefins catalyzed by cyclopalladated ferrocenylimine was developed. The results represent the first examples involving the palladacycle as the catalyst for such couplings. Moreover, the catalytic system could tolerate various functional groups, such as F, Cl, Br, NO2 and CH3O, and the substrates could be extended
提出了一种温和有效的方法,用于环硼酸二茂铁基亚胺催化芳基硼酸与烯烃的氧化Heck型反应。结果代表了涉及保拉达环作为此类偶联催化剂的第一个实例。此外,该催化体系可耐受各种官能团,例如F,Cl,Br,NO 2和CH 3 O,并且底物可扩展至从丙烯酸酯,α,β-不饱和酮到烯烃的各种烯烃。 。此外,烯化反应可以在无碱和无配体的条件下很好地进行,并采用氧气作为环境友好的氧化剂。