Use of Olefin Metathesis to Link Phosphinimide−Cyclopentadienyl Ligand Complexes: Synthesis, Structure, and Ethylene Polymerization Activity
作者:Osamah Alhomaidan、Guangcai Bai、Douglas W. Stephan
DOI:10.1021/om800672c
日期:2008.12.8
Efforts to link phosphinimide and cyclopentadienyl ligands via metathesis were undertaken. To this end, the allylic phosphinimine t-Bu2(CH2═CHCH2C(Me2)PNSiMe3 (1) and the Ti complexes t-Bu2(CH2═CHCH2C(Me2)PNTi(Cp)Cl2 (2), t-Bu2(CH2═CHCH2C(Me2)PNTi(C5Me5)Cl2 (3), and t-Bu2(CH2═CHCH2C(Me2)PNTi(C5H4CH2CH═CH2)Cl2 (4) were prepared. Attempts to effect olefin metathesis on 4 using either [Cl2(PCy3)2Ru═CHPh]