Chemical Communications p. 1375 - 1376 (1996)
Update date:2022-09-26
Topics:
Horton, Andrew D.
De With, Jan
Reaction of {(Me3Si)2N}2Zr(CH2Ph)2 1 with B(C6F5)3 gives a cationic benzyl complex, which at -25°C, expels toluene to afford {(Me3Si)2N}Zr(CH2SiMe2NSiMe 3){ηn-PhCH2-B(C6F 5)3} 2; strong anion coordination to zirconium in cyclometallation product 2 suppresses alkene polymerization, whereas the analogous cationic NMe2Ph adduct 3, formed by protonolysis of 1, polymerizes both ethene and propene.
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(1993)
