Oxidation of Spirocyclohexyl‐1,2,4‐trithiolane and Complexation Reaction with [Pt(η
<sup>2</sup>
‐nb)(PPh
<sub>3</sub>
)
<sub>2</sub>
]
作者:Holm Petzold、Silvio Bräutigam、Helmar Görls、Wolfgang Weigand、Jaroslaw Romanski、Grzegorz Mloston
DOI:10.1002/ejic.200700890
日期:2007.12
1-S-oxide, 2 and 3, respectively. The complexation reactions of 1–3 with [Pt(η2-nb)(PPh3)2] (4; nb = norbornene) have been studied. The formed dithiolato, thioketone, thiolatosulfenato and sulfine complexes 5–8 have been isolated and characterized by 1H-, 31P NMR and IR spectroscopy and by mass spectrometry. The mechanism of the reaction is discussed. The reaction proceeds by insertion of the Pt0 complex fragment
spirocylcohexyl-1,2,4-trithiolane 1 的氧化分别产生 4-S-和 1-S-氧化物 2 和 3。已经研究了 1-3 与 [Pt(η2-nb)(PPh3)2] (4; nb = 降冰片烯) 的络合反应。形成的二硫合、硫酮、硫合次磺基和亚砜配合物 5-8 已被分离并通过 1H-、31P 核磁共振和红外光谱以及质谱进行表征。讨论了反应机理。该反应通过将 Pt0 复合物片段插入硫-硫键中并随后通过硫酮或亚砜的挤出进行环收缩来进行。氧化配合物 7 和 8 与非氧化配合物 5 的分子结构的比较显示了亚磺基-铂键的伸长和相应反位中铂-磷键的伸长。形成的产物表明,在该系统中,硫合-铂键的形成比次磺基-铂键更有利于形成。5、7和8的结构是通过X射线晶体学确定的。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany