Short synthesis of methylenecyclopentenones by intermolecular Pauson–Khand reaction of allyl thiourea
作者:Željko Petrovski、Bruno M.R. Martins、Carlos A.M. Afonso
DOI:10.1016/j.tetlet.2010.04.025
日期:2010.6
N,N,N′-Trimethylallylthiourea promotes the intermolecular Pauson–Khand reaction with alkynes in the presence of Co2(CO)8 and moderate pressure of CO followed by thiourea elimination allowing the formation of methylenecyclopentenone derivatives.
N,N,N'-三甲基烯丙基硫脲在存在Co 2(CO)8和中等压力的CO的情况下促进与炔烃的分子间Pauson-Khand反应,然后通过硫脲消除而形成亚甲基环戊烯酮衍生物。