(Alkenylalkylidene)(indenyl)ruthenium(II) Complexes: Synthesis by Protonation of Alkenyl Derivatives
作者:Klaus Bieger、Josefina Díez、M. Pilar Gamasa、José Gimeno、Martin Pavlišta、Yolanda Rodríguez-Álvarez、Santiago García-Granda、Rafael Santiago-García
DOI:10.1002/1099-0682(200207)2002:7<1647::aid-ejic1647>3.0.co;2-y
日期:2002.7
vinylalkenyl complexes 6a−d have been synthesized by the regio- and stereoselective reaction of the hydride complex 2 with 1-ethynylcycloalkynols. Protonation of the vinylalkenyl moiety of complexes 6a,c,d with HBF4·OEt2 in diethyl ether afforded the cationic alkenylalkylidene complexes 7a−c. The structures of complexes [RuH(η5-C9H7)κ2-P,P-(S)-peap}] (2) and [Ru(E)-C(CO2Me)=CH(CO2Me)}(η5-C9H7)κ2-P
烯基配合物 [Ru(E)-C(CO2Me)=C(H)R}(η5-C9H7)κ2-P,P-(S)-peap}] [R = CO2Me (3), H ( 4)], [Ru(E)-CH=C(H)Ph}(η5-C9H7)κ2-P,P-(S)-peap}] (5) 已通过氢化物的反应制备[RuH(η5-C9H7)κ2-P,P-(S)-peap}] (2) [(S)-peap = (-)-(S)-N,N-bis(diphenylphosphanyl)(1-苯乙基)胺]与等摩尔量的乙炔二甲酸二甲酯,或与过量的末端炔烃丙炔酸甲酯或苯乙炔。类似地,乙烯基烯基配合物 6a-d 已通过氢化物配合物 2 与 1-乙炔基环炔醇的区域和立体选择性反应合成。配合物 6a,c,d 的乙烯基烯基部分在乙醚中与 HBF4·OEt2 质子化得到阳离子烯基亚烷基配合物 7a-c。[RuH(η5-C9H7)κ2-P, P-(S)-peap}]