Polymerization of .alpha.-Olefins and Butadiene and Catalytic Cyclotrimerization of 1-Alkynes by a New Class of Group IV Catalysts. Control of Molecular Weight and Polymer Microstructure via Ligand Tuning in Sterically Hindered Chelating Phenoxide Titaniu
Polymerization of .alpha.-Olefins and Butadiene and Catalytic Cyclotrimerization of 1-Alkynes by a New Class of Group IV Catalysts. Control of Molecular Weight and Polymer Microstructure via Ligand Tuning in Sterically Hindered Chelating Phenoxide Titaniu
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DOI：
10.1021/ja00116a006
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发表时间：
1995-03
影响因子：
15
通讯作者：
Arjan van der Linden;C. Schaverien;Nicolaas Meijboom;C. Ganter;A. Orpen
中科院分区：
文献类型：
--
作者：
Arjan van der Linden;C. Schaverien;Nicolaas Meijboom;C. Ganter;A. Orpen
报道了一类新的烯烃齐聚均相催化剂。这些钛或锆空间位阻螯合烷氧化物络合物通过M（CH 2 Ph）4（M= Ti，Zr）或Zr（CH 2 Ph）2Cl 2（OEt 2）2与适当的联苯酚或联萘的反应，或通过TiCl 4与二醇的反应来制备。使用这些方法，已经制备了一系列具有不同空间位阻的联萘氧化物和联苯氧化物催化剂：（2，2'，3，3'-OC10H5SiR3）} 2ZrCl2（R3= Me3（1）; R3= MePh2（2）; R3= Ph3（3）}，{1，1 '-（2，2'，3，3'-OC，oH5SiMe3）} 2Ti（CH2Ph）2（4），{1，1，-（2，2，3，3，-OC10H5SiMePh2）} 2Zr（CH2Ph）2（5），（1，1'-（2，2，3，3，-OC10H5-SiPh3）} 2M（CH2Ph）2 {M=
A new class of homogeneous catalysts for olefin oligo-polymerization is reported. These titanium or zirconium sterically hindered chelating alkoxide complexes were prepared by reaction of M (CH2Ph) 4 (M= Ti, Zr) or Zr (CH2Ph) 2Cl2 (OEt2) 2 with the appropriate biphenol or binaphthol, or by reaction of TiCU with the diol. Using these methodologies, a range of binaphthoxide and biphenoxide catalysts with varying steric hindrance have been prepared:{l, l'-(2, 2', 3, 3'-OCioH5SiR3)} 2ZrCl2 (R3= Me3 (1); R3= MePh2 (2); R3= Ph3 (3)},{l, l'-(2, 2', 3, 3'-OC, oH5SiMe3)} 2Ti (CH2Ph) 2 (4),{l, l,-(2, 2,, 3, 3,-OCi0H5SiMePh2)} 2Zr (CH2Ph) 2 (5),(1, 1'-(2, 2,, 3, 3,-OCi0H5-SiPh3)} 2M (CH2Ph) 2 {M=