Reductive Coupling of Allylic Esters with Carbonyl Compounds Mediated by the Mischmetall/[SmI2/Pd0cat.′]cat. System
作者:Sédami Médégan、Florence Hélion、Jean-Louis Namy
DOI:10.1002/ejoc.200500291
日期:2005.11
“two-stage catalysis” has been carried out using SmI2 and Pd(PPh3)4 in catalytic amounts together with mischmetall (an alloy of the light lanthanides) as a co-reductant. A catalytic scheme that takes into account previously reported reactions of SmI2/Pd0cat. and mischmetall/SmI2,cat. systems is proposed. It has also been shown that palladium complexes catalyse the addition of organolanthanide species
混合金属/[SmI2/Pd0cat.'] 猫。该系统已被用于使用各种烯丙酯(乙酸酯、碳酸酯和磷酸酯)来介导酮的烯丙基化。因此,使用催化量的 SmI2 和 Pd(PPh3)4 以及作为助还原剂的混合稀土(轻镧系元素的合金)进行了“两阶段催化”。考虑到先前报道的 SmI2/Pd0cat 反应的催化方案。和混合金属/SmI2,猫。系统提出。还显示钯配合物催化有机镧系元素与酮的加成。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)