Ansa-bridged η-cyclopentadienyl imido and amido derivatives of titanium, zirconium and molybdenum
作者:Pedro T Gomes、Malcolm L.H Green、Ana M Martins
DOI:10.1016/s0022-328x(97)00516-0
日期:1998.1
An improved synthesis of the ligand precursor [C5H4(SiMe3)](CH2)3N(SiMe3)2} is described. It has been used to prepare the compounds Ti[η:σ-C5H4(CH2)3N(SiMe3)]Cl2}, Ti[η-C5H4(CH2)3(μ-N)]Cl}2, Zr[η:σ-C5H4(CH2)3N(SiMe3)](SMe2)Cl2}, Zr[η:σ-C5H4(CH2)3N(SiMe3)]Cl2} and Mo[η:σ-C5H4(CH2)3N(SiMe3)](PMe3)Cl2}. The zirconium compounds together with methylaluminoxane act as catalysts for ethylene and propylene
描述了配体前体[C 5 H 4(SiMe 3)](CH 2)3 N(SiMe 3)2 }的改进的合成。它已用于制备化合物Ti [ η:σ- C 5 H 4(CH 2)3 N(SiMe 3)] Cl 2 },Ti [ η- C 5 H 4(CH 2)3(μ -N)] Cl} 2,Zr [ η:σ- C 5H 4(CH 2)3 N(SiMe 3)](SMe 2)Cl 2 },Zr [ η:σ- C 5 H 4(CH 2)3 N(SiMe 3)] Cl 2 }和Mo [ η:σ- C 5 H 4(CH 2)3 N(SiMe 3)](PMe 3)Cl 2 }。锆化合物与甲基铝氧烷一起用作乙烯和丙烯聚合的催化剂。