Indenyl Abstraction versus Alkyl Abstraction of [(Indenyl)ScR<sub>2</sub>(thf)] by [Ph<sub>3</sub>C] [B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>]: Aspecific and Syndiospecific Styrene Polymerization
作者:Xin Xu、Yaofeng Chen、Jie Sun
DOI:10.1002/chem.200802220
日期:2009.1.12
Controlled abstraction: [Ph3C][B(C6F5)4] is best known for its excellent ability to abstract alkyl ligands, however, the present study on mono(indenyl)–Sc–dialkyl/[Ph3C][B(C6F5)4] systems has found that [Ph3C][B(C6F5)4] can abstract a π‐bonded indenyl ligand rather than a σ‐alkyl ligand (see scheme). The abstraction pathway can be controlled by changing the substituents on the indenyl ligands.
受控抽象:[Ph 3 C] [B(C 6 F 5)4 ]以其出色的抽象烷基配体能力而闻名,然而,目前对单(茚基)-Sc-二烷基/ [Ph 3 C]的研究[B(C 6 F 5)4 ]系统发现[Ph 3 C] [B(C 6 F 5)4 ]可以提取π键结合的茚基配体,而不是σ-烷基配体(请参见方案)。可以通过改变茚基配体上的取代基来控制抽象途径。