作者:Katsuma Hiraki、Yoshio Fuchita、Hirosuke Kawabata、Koji Iwamoto、Takashi Yoshimura、Hiroyuki Kawano
DOI:10.1246/bcsj.65.3027
日期:1992.11
[RuClH(CO)(PPh3)3] (1) reacted with alkyl allyl sulfides at 10–25 °C to give insertion products, [Ru(CH2CH2CH2SR)Cl(CO)(PPh3)2] (R = CH3, 2; R = CH2C6H5, 3; and R = CH2CH=CH2, 4). Complexes 2–4 exhibited temperature-dependent NMR spectra above −40 °C, indicating that rapid exchange occurred between two structural isomers owing to inversion of the alkyl group upon the coordinated sulfur stom. Upon heating
[RuClH(CO)(PPh3)3] (1) 在 10–25 °C 下与烷基烯丙基硫化物反应生成插入产物 [Ru(CH2CH2CH2SR)Cl(CO)(PPh3)2] (R = CH3, 2; R = CH2C6H5, 3;并且 R = CH2CH=CH2, 4)。配合物 2-4 表现出高于 -40 °C 的温度依赖性 NMR 光谱,表明由于配位硫原子上烷基的反转,两种结构异构体之间发生了快速交换。在 67 °C 加热后,2 转化为双核络合物 [Ru2(μ-Cl)Cl(μ-H)(μ-SCH3)(CO)2(PPh3)3],生成丙烯。络合物 [RuClH(CO)(dppe)(PPh3)] (7) [dppe = 1,2-双(二苯基膦基)乙烷] 在 110 °C 与烯丙基甲基硫醚反应得到 [Ru2Cl2(μ-SMe)2(CO )2(dppe)2] (8),放出丙烯。