Comely Alex C, Gibson Susan E, Hales Neil J, Johnstone Craig, Stevenazzi Andrea
Department of Chemistry, King's College London, Strand, London UK WC2R 2LS.
Org Biomol Chem. 2003 Jun 7;1(11):1959-68. doi: 10.1039/b303208f.
Carbonylcobalt(0) species have been used as linkers between alkynes and a polymer support for the first time. The alkynes may be loaded indirectly onto a phosphine functionalised polymer via their hexacarbonyldicobalt(0) complex, or directly onto a cobalt coated polymer. The alkynes have been released either as alkynes, thus providing a traceless method of immobilising alkynes, or by reaction with an alkene to generate a cyclopentenone via the Pauson-Khand reaction. The cobalt coated polymers produced during this study were shown to catalyse the Pauson-Khand reaction.
羰基钴(0)物种首次被用作炔烃与聚合物载体之间的连接体。炔烃可以通过其二羰基六钴(0)配合物间接负载到膦官能化聚合物上，或者直接负载到涂有钴的聚合物上。炔烃可以以炔烃形式释放，从而提供一种无痕固定炔烃的方法，或者通过与烯烃反应，经由Pauson-Khand反应生成环戊烯酮。在本研究中制备的涂有钴的聚合物被证明能催化Pauson-Khand反应。
