Synthesis and Reactivity of [Ru(Cp*)(L)(MeCN)
<sub>2</sub>
][PF
<sub>6</sub>
] (L = Ph
<sub>2</sub>
POMe or Ph
<sub>2</sub>
P‐
<i>o</i>
‐tolyl) and {Ru(Cp*)[Ph
<sub>2</sub>
PCH
<sub>2</sub>
C(
<i>t</i>
Bu)=O](MeCN)}[PF
<sub>6</sub>
] Complexes, Their Involvement as Catalyst Precursors for Regioselective Allylic Substitution Reactions and Related [Ru(Cp*)Cl(Ph
<sub>2</sub>
POMe)(RCHCHCH
<sub>2</sub>
)][PF
<sub>6</sub>
] η
<sup>3</sup>
‐Allyl Ruthenium(
<scp>IV</scp>
) Intermediates
作者:Bernard Demerseman、Jean‐Luc Renaud、Loïc Toupet、Claudie Hubert、Christian Bruneau
DOI:10.1002/ejic.200501051
日期:2006.4
The synthesis of the new complexes [Ru(Cp*)(L)(MeCN)2][PF6] (L = Ph2POMe or Ph2P-o-tolyl) and Ru(Cp*)[Ph2PCH2C(tBu)=O](MeCN)}[PF6] (2a–c) is achieved starting from [Ru(Cp*)(MeCN)3][PF6]. The acetonitrile ligands in complexes 2a–c are labile, as emphasised by the easy formation of Ru(Cp*)(CO)2[Ph2PCH2C(=O)tBu]}[PF6] (3). The keto-phosphane is used as a tool to convert 3 into Ru(Cp*)(CO)[Ph2PCH2C(tBu)=O]}[PF6]
新配合物 [Ru(Cp*)(L)(MeCN)2][PF6](L = Ph2POMe 或 Ph2P-o-tolyl)和 Ru(Cp*)[Ph2PCH2C(tBu)=O]( MeCN)}[PF6] (2a–c) 从 [Ru(Cp*)(MeCN)3][PF6] 开始实现。正如 Ru(Cp*)(CO)2[Ph2PCH2C(=O)tBu]}[PF6] (3) 的容易形成所强调的那样,配合物 2a-c 中的乙腈配体是不稳定的。酮磷烷用作将 3 转化为 Ru(Cp*)(CO)[Ph2PCH2C(tBu)=O]}[PF6] (5) 的工具。配合物 5 在作为溶剂的甲醇中与 1,1-二苯基-2-丙炔-1-醇反应以提供乙烯基-卡宾配合物 Ru(Cp*)(CO)[=C(OMe)CH=CPh2][Ph2PCH2C(= O)tBu]}[PF6]。新的 η3-烯丙基钌 (IV) 衍生物 [Ru(Cp*)Cl(