Synthesis, characterization, and activation of zirconium and hafnium dialkyl complexes that contain a C2-symmetric diaminobinaphthyl dipyridine ligand

被引：24

作者：

Tonzetich, ZJ ^{[1
]}

Schrock, RR ^{[1
]}

Hock, AS ^{[1
]}

Müller, P ^{[1
]}

机构：

[1] MIT, Dept Chem 6 331, Cambridge, MA 02139 USA

来源：

ORGANOMETALLICS | 2005年 / 24卷 / 13期

关键词：

D O I：

10.1021/om058007i

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The diamine rac-H-2[MepyN] (rac-N,N'-di(6-methylpyridin-2-yl)-2,2'-diaminobinaphthalene) has been prepared in good yield through reductive amination of rac-2,2'-diaminobinaphthalene with 6-methylpyridinecarboxaldehyde. The [MepyN](2-) ligand has been employed to prepare a variety of zirconium and hafnium complexes, [MepyN]MX2 (M = Zr, X = NMe2, Cl, OSO2CF3, CH2CHMe2, CH2Ph; M = Hf, X = NMe2, OSO2CF3, CH2CHMe2). The solid state structures of [MepyN]Zr(CH2Ph)(2), [MepyN]Zr(NMe2)Cl, [MepyN]Hf(CH2CHMe2)(2), and [MepyN]Hf(OSO2CF3)(2) have been determined by X-ray diffraction. Activation of [MepyN]Zr(CH2Ph)(2) and [MepyN]Hf(CH2CHMe2)(2) with various Lewis acids leads to observable cationic alkyls that are not active toward 1-hexene polymerization.

引用

页码：3335 / 3342

页数：8

共 44 条

[1] NMR detection of living intermediates prepared from activated [NON]ZrMe2 ([NON]2- = [(t-Bu-d6-N-o-C6H4)2O]2-) and olefins [J].