Unexpected C(carbene)-X (X: I, Br, Cl) Reductive Elimination From N-Heterocyclic Carbene Copper Halide Complexes Under Oxidative Conditions.

Unexpected C(carbene)-X (X: I, Br, Cl) Reductive Elimination From N-Heterocyclic Carbene Copper Halide Complexes Under Oxidative Conditions.
复制标题

DOI:
10.1021/om1005726
复制
发表时间:
2010-09-13
期刊:
影响因子:
2.8
通讯作者:
Stack TD
Stack TD
中科院分区:
化学2区
文献类型:
--
作者:
Lin BL;Kang P;Stack TD

文献摘要

参考文献

被引文献

相似文献

NHC配体的非无害行为引起了人们的广泛关注 由于它们对催化剂设计和反应的重要意义 机制等在此,我们报告了容易的Ccarbene-卤素 在室温下氧化还原消除NHC卤化铜络合物 条件对简化模型系统的密度泛函计算表明 反应通过Cu(I)氧化成Cu(III)物质发生, 通过Ccarbene-卤素还原消除NHC Cu(III) 卤化物络合物。Ccarbene-chloride接触时间极短 氯离子孤对电子和 卡宾 在计算的NHC中发现了pπ轨道 Cu(III)氯化物。简单的Ccarbene-X还原剂 这里报告的消除值得考虑作为潜在的分解 在涉及NHC负载的高价金属络合物的反应中的途径, 尤其是后过渡金属。
The non-innocent behaviors of NHC ligands have attracted wide attention due to their important implications for catalyst designs and reaction mechanisms. Herein, we report facile Ccarbene–halogen reductive eliminations from NHC copper halide complexes at RT under oxidative conditions. Density functional calculations on a simplified model system suggest that the reactions occur through oxidation of Cu(I) to Cu(III) species followed by Ccarbene–halogen reductive eliminations from NHC Cu(III) halide complexes. Remarkably short Ccarbene–chloride contacts and rare interactions between the chloride lone pair electrons and the Ccarbene pπ orbital were found for the calculated NHC Cu(III) chlorides. The facile Ccarbene–X reductive elimination reported here warrants consideration as a potential decomposition pathway in reactions involving NHC-supported high-valent metal complexes, especially with late transition metals.
DOI: 10.1021/ja807809x
发表时间: 2009-01-28
影响因子: 15
作者:
Herres-Pawlis, Sonia;Verma, Pratilk;Stack, T. Daniel P.
通讯作者: Stack, T. Daniel P.
DOI: 10.1021/ja010628p
发表时间: 2001-08-29
影响因子: 15
作者:
McGuinness, DS;Cavell, KJ;White, AH
通讯作者: White, AH
DOI: 10.1021/ja0362151
发表时间: 2003-09-03
影响因子: 15
作者:
Dorta, R;Stevens, ED;Nolan, SP
通讯作者: Nolan, SP
DOI: 10.1126/science.1112081
发表时间: 2005-06-24
期刊: SCIENCE
影响因子: 56.9
作者:
Mirica, LM;Vance, M;Stack, TDP
通讯作者: Stack, TDP
DOI: 10.1039/b408750j
发表时间: 2004-01-01
影响因子: 4
作者:
Fooladi, E;Dalhus, B;Tilset, M
通讯作者: Tilset, M