Immobilized complexes of copper(II) chloride with triethylenetetramine as catalysts for the reaction of C-Cl bond metathesis

被引：0

作者：

Kharitonov, D.N. ^{[1
]}

Golubeva, E.N. ^{[1
]}

Pergushov, V.I. ^{[1
]}

Kokorin, A.I. ^{[2
]}

Smirnov, V.V. ^{[1
]}

机构：

[1] Moscow State University, Vorob'evy gory, Moscow, 119899, Russia

[2] Semenov Inst. of Chemical Physics, Russian Academy of Sciences, Moscow, 117977, Russia

来源：

| 2001年 / Maik Nauka-Interperiodica Publishing卷 / 42期

关键词：

Catalyst activity - Copper compounds - Electron spin resonance spectroscopy - Reaction kinetics - Silica;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The structure and activity of C-Cl bond metathesis catalysts containing CuCl2 and tricthylenetetramine (TETA) supported on silica were studied. The catalysts were found to contain ∼40% Cu(II) as paramagnetic complexes of the composition Cu(TETA)2Cl2 and diamagnetic binuclear or polynuclear copper complexes, which are undetectable by EPR spectroscopy. The catalytic activity of the test systems in the radical reaction of C-Cl bond metathesis in the CCl4-C10H22 system was maximum at a Cu(II) concentration of ∼0.5 wt % on the support. A kinetic scheme was proposed, which suggests that only mononuclear copper complexes participate at the stage of radical generation, whereas termination can also occur on binuclear or polynuclear complexes.

引用

共 50 条

[1] Immobilized complexes of Copper(II) chloride with triethylenetetramine as catalysts for the reaction of C-Cl bond metathesis
Kharitonov, DN
Golubeva, EN
Pergushov, VI
Kokorin, AI
Smirnov, VV
KINETICS AND CATALYSIS, 2001, 42 (05) : 673 - 678
[2] Immobilized Complexes of Copper(II) Chloride with Triethylenetetramine as Catalysts for the Reaction of C–Cl Bond Metathesis
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[3] Structure and composition of the anionic chloride complexes of copper(II) as the precursors of catalysts for C-Cl bond metathesis
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