Synthesis and reactivity of novel niobocene complexes containing allyl or 1-azaallyl ligands.: X-ray crystal structure of [Li{η3-N(SiMe3)C(tBu)CH2}]3

被引：16

作者：

Antiñolo, A

Huertas, C

del Hierro, I

Lappert, MF

Otero, A

Prashar, S

Rodriguez, AM

Villaseñor, E

机构：

[1] Univ Castilla La Mancha, Fac Quim, Dept Quim Inorgan Organ & Bioquim, E-13071 Ciudad Real, Spain

[2] Univ Sussex, Chem Lab, Brighton BN1 9QJ, E Sussex, England

来源：

ORGANOMETALLICS | 1998年 / 17卷 / 26期

关键词：

D O I：

10.1021/om980716r

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The lithium 1-azaallyl complex [LiC{eta(3)-N(SiMe3)C(Bu-t)CH2}](3) (1), has been prepared, and its X-ray crystal structure was determined. The niobocene(III) allyl and 1-azaallyl complexes Cp'Nb-2[eta(3)-CH2C(R)CH2] (Cp' = eta(5)-C5H4SiMe3; R = H (2), Me (3)) and Cp'Nb-2[N(SiMe3)C(Bu-t)CH2] (4) have been synthesized. Oxidation of 2 and 3 by O-2 yields Cp'Nb-2[eta(1)-CH2C(R)CH2](O) (R = H (5), Me (6)). The complexes CpNb(=(NBu)-Bu-t)[eta(1)-CH2C(R)CH2]Cl (Cp = eta(5)-C5H5; R = H (7), Me (8)) have also been prepared. Oxidation of 2-4 by PbCl2 gave Cp'Nb-2[eta(1-)CH(2)C(R)CH2]Cl (R = H (9), Me (10)) and Cp'Nb-2[N(SiMe3)C(Bu-t)CH2]Cl (11). Cp'Nb-2[eta(1)-CH2C(R)CH2](L) (L = CO (12), CN(2,6-Me-2-C6H3) (13)) were prepared by the reaction of Cp'2NbCl(L) with ClMg(CH2CHCH2).

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页码：5874 / 5879

页数：6

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