General Route from Simple Methyl, Alkyl, and Cycloalkyl Arenes to Polycyclic Cyclopentenyl Aryl Derivatives. The CpFe<sup>+</sup> Group as an Activator and Tag
作者:Victor Martinez、Jean-Claude Blais、Didier Astruc
DOI:10.1021/ol0172875
日期:2002.2.1
CpFe(+) group activates the perallylation of the benzylic groups of arenes using KOH and allylbromide under ambient conditions. This reaction can be followed by ruthenium-catalyzed RCM metathesis using Grubbs' catalyst at room temperature to give polycyclic aromatic derivatives in high yields, and these products are easily separated from the catalyst by extraction using ether. Alternatively, the RCM metathesis
[反应:见正文]在环境条件下,使用KOH和烯丙基溴,CpFe(+)基团激活芳烃苄基的全烷基化。该反应之后,在室温下使用Grubbs催化剂进行钌催化的RCM复分解,可以高收率得到多环芳族衍生物,并且通过使用醚萃取可以很容易地将这些产物与催化剂分离。或者,最好在80°C的离子液体中进行RCM复分解,然后再用乙醚萃取就很容易了。