Tethered Bis-Amidinates as Supporting Ligands: A Concerted Elimination/σ-π Rearrangement Reaction Forming an Unusual Titanium Arene Complex
作者:John R. Hagadorn、John Arnold
DOI:10.1002/(sici)1521-3773(19980703)37:12<1729::aid-anie1729>3.0.co;2-f
日期:1998.7.3
significant contribution to the structure of the (arene)Ti complex [LTi(η6 -PhCH3 )] (see picture on the right). Labeling experiments have demonstrated that the structure forms through an unusual elimination/σ-π rearrangement reaction in which [LTi(CH2 Ph)2 ] reacts readily with hydrogen; the use of the cyclohexane-linked bis-amidinate ligand L with constrained geometry makes the transformation possible.
甲1,4-环己二烯二价阴离子共振结构使得向(芳烃)的结构的显著贡献的Ti配合物[路斯特(η 6 -PhCH 3)](见右边的图片)。标记实验表明,该结构是通过不寻常的消除/σ-π重排反应形成的,其中[LTi(CH 2 Ph)2 ]易于与氢反应;几何形状受限的环己烷连接的双酰胺基配体L的使用使转化成为可能。