Cyclooctene epoxidation with H2O2 and single crystal X-ray determined crystal structures of new molybdenum and tungsten catalysts bearing the hydrophilic ligand hydroxymethyldiphenylphosphine oxide

被引：35

作者：

Feng, Linsheng ^{[1
]}

Urnezius, Eugenijus ^{[1
]}

Luck, Rudy L. ^{[1
]}

机构：

[1] Michigan Technol Univ, Dept Chem, Houghton, MI 49931 USA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2008年 / 693卷 / 8-9期

关键词：

molybdenum oxide; tungsten oxide; olefin epoxidation; hydrogen peroxide; crystal structures; catalysis;

D O I：

10.1016/j.jorganchem.2007.11.018

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The dioxo molybdenum and tungsten complexes MoO2Cl2(OPPh2CH2OH)(2) and WO2Cl2(OPPh2CH2OH)(2) have been synthesized and characterized by FT-IR, H-1 and P-31 NMR. Their structures, as determined by single crystal X-ray diffraction analysis, reveal distorted octahedral geometries with cis terminal oxygen atoms, trans Cl ligands and that the hydroxymethyldiphenylphosphine oxide ligands coordinate through the oxygen atom bonded to the P atom. Both of the compounds are studied as catalysts for the epoxidation of cis-cyclooctene in the presence of hydrogen peroxide as a source of oxygen. Both complexes showed good activity and very high selectivity for the formation of cyclooctene oxide. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1564 / 1571

页数：8

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