Allylsilylcyclopentadienyl Group 4 metal complexes: synthesis, structure and reactivity
作者:Jesús Cano、Pilar Gómez-Sal、Georg Heinz、Gema Martı́nez、Pascual Royo
DOI:10.1016/s0020-1693(02)01280-x
日期:2003.3
metallocene complexes using MeLi, MgMeCl, Mg(CH2Ph)Cl and Mg(CH2Ph)2(THF)2 afforded the monomethyl titanium [Ti(η5-C5H5)η5-C5H4SiMe2(CH2CHCH2)}ClMe] (15) and the dialkyl cyclopentadienyl [M(η5-C5H5)η5-C5H4SiMe2 (CH2CHCH2)}R2] (R=Me, M=Ti 16, Zr 18; R=CH2Ph, M=Ti 20, Zr 22), [Zrη5-C5H4SiMe2(CH2CHCH2)}2R2] (R=Me 17, CH2Ph 21) and indenyl derivatives [Zr(η5-C5H5)η5-C9H6SiMe2(CH2CHCH2)}R2] (R=Me 19, CH2Ph
(Allyldimethyl)甲硅烷基取代的环戊二烯Ç 5 ħ 5森达2(CH 2 CHCH 2)(1)和茚Ç 9 ħ 7 1-森达2(CH 2 CHCH 2)(2)由反应合成森达的2(CH 2 CHCH 2)氯与NAC 5 ħ 5或LIC 9 ħ 7,分别。用n-BuLi和TlOEt金属化1得到相应的锂3和al 5盐。所述disilylcylopentadienesÇ 5 ħ 4 1-森达3 1-森达2(CH 2 CHCH 2)(6)和C 5 H ^ 4 1,1-[森达2(CH 2 CHCH 2)] 2通过使3与相应的氯硅烷反应来制备(7)。化合物7用TiCl 4进行反应4,得到单环戊二烯基化合物钛[Ti η 5 -C 5 H ^ 4森达2(CH 2 CHCH2)}氯3 ](8),而5是用于制备二茂钛钛[Ti(η 5 -Cp)η 5 -C 5 H ^ 4森达2(CH