Ruthenium Complexes Bearing Bulky Pentasubstituted Cyclopentadienyl Ligands and Evaluation of [Ru(η
<sup>5</sup>
‐C
<sub>5</sub>
Me
<sub>4</sub>
R)(MeCN)
<sub>3</sub>
][PF
<sub>6</sub>
] Precatalysts in Nucleophilic Allylic Substitution Reactions
作者:Hui‐Jun Zhang、Bernard Demerseman、Zhenfeng Xi、Christian Bruneau
DOI:10.1002/ejic.200800295
日期:2008.7
[Ru(η5-C5Me4R)(MeCN)3][PF6] (R = CH2tBu, iPr, tBu, and CF3; 2–5) complexes were synthesized in two steps starting from the appropriate cyclopentadienes and RuCl3·3H2O. The fully substituted ruthenocenes [Ru(C5Me5)(C5Me4R*)], [Ru(C5Me5)(C5nPr4R*)] R* = (1R,5S)-6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl} and [Ru(C5Me5)(C5nPr5)] were obtained by treating [Ru(C5Me5)Cl]4 with the corresponding cyclopentadienyllithium
[Ru(η5-C5Me4R)(MeCN)3][PF6] (R = CH2tBu, iPr, tBu, 和 CF3; 2-5) 配合物从适当的环戊二烯和 RuCl3·3H2O 开始,分两步合成。完全取代的钌茂 [Ru(C5Me5)(C5Me4R*)], [Ru(C5Me5)(C5nPr4R*)] R* = (1R,5S)-6,6-二甲基双环[3.1.1]hept-2-en -2-yl} 和 [Ru(C5Me5)(C5nPr5)] 是通过用相应的环戊二烯基锂盐处理 [Ru(C5Me5)Cl]4 获得的。将配合物 2-5 评估为亲核烯丙基取代反应的催化剂前体,并将结果与使用 [Ru(C5Me5)(MeCN)3][PF6] (1) 预催化剂获得的结果进行比较。