Reactivity of the tethered alkyl uranium bonds of (η5:κ1-C5Me4SiMe2CH2)2U

被引：26

作者：

Evans, William J. ^{[1
]}

Siladke, Nathan A. ^{[1
]}

Ziller, Joseph W. ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

COMPTES RENDUS CHIMIE | 2010年 / 13卷 / 6-7期

关键词：

Uranium; Cyclopentadienyl ligands; Insertion; Alkyl ligands; Metallocene; ACTINIDE-ALKYL; CARBON BONDS; COMPLEXES; INSERTION; CHEMISTRY; COORDINATION; LN;

D O I：

10.1016/j.crci.2010.02.003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Uranium-carbon bond reactivity has been investigated with the bis(tethered silylalkyl) uranium metallocene (eta(5).kappa(1)-C5Me4SiMe2CH2)(2)U, 1 Tert-butyl nitrile, (BuC)-Bu-t equivalent to N, inserts into both of the tethered U-C bonds to produce the bis(tethered ketimide) complex [eta(5).kappa(1)- C5Me4SiMe2CH2C(Bu-t)N](2)U, 2, which has unusually bent U-N-C bond angles Carbon dioxide also inserts Into both U-C bonds of 1 yielding the bis(tethered carboxylate) (C5Me4SiMe2CH2CO2)(2)U, 3. Neither PhC equivalent to CPh nor PhC=CH insert into the U-C bonds, but PhC equivalent to CH cleaves the silylalkyl tethers in 1 to generate (C5Me4SiMe3)(1-) ligands in the complex (C5Me4SiMe3)(2)U(CmCPh)(2), 4. (C) 2010 Academie des sciences. Published by Elsevier Masson SAS All rights reserved.

引用

页码：775 / 780

页数：6

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