Highly chemo- and stereoselective Fe-catalyzed alkenylation of organomanganese reagents
作者:Gérard Cahiez、Sophie Marquais
DOI:10.1016/0040-4039(96)00116-5
日期:1996.3
Organomanganese chlorides react with alkenyl iodides, bromides and chlorides in the presence of 3% Fe(acac)3. The reaction takes place under very mild conditions (THF-NMP, rt, 1h) to afford the substituted olefin in excellent yields with a high stereo- and chemoselectivity. Thus an unprotected keto alkenyl chloride selectively gives the corresponding keto olefin. From a preparative point of view, this
有机锰氯化物在3%Fe(acac)3存在下与链烯基碘化物,溴化物和氯化物反应。该反应在非常温和的条件下(THF-NMP,rt,1h)进行,以高产率得到具有高立体选择性和化学选择性的取代烯烃。因此,未保护的酮烯基氯选择性地得到相应的酮烯烃。从制备的角度来看,该方法是迄今为止使用的Pd和Ni交叉偶联反应的第一个真正替代方法。