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Catalytic epoxidation of olefins with hydrogen peroxide by hybrid complex containing nickel(III) Schiff base complex covalently linked to polyoxometalate

Paper ID Volume ID Publish Year Pages File Format Full-Text
43197 45958 2008 6 PDF Available
Title
Catalytic epoxidation of olefins with hydrogen peroxide by hybrid complex containing nickel(III) Schiff base complex covalently linked to polyoxometalate
Abstract

The catalytic activity of a hybrid compound, nickel(salen)–POM (1), consisting of nickel(salen) [salen = N,N′-bis(salicylidene)ethylenediamine] complex covalently linked to a lacunary Keggin-type polyoxometalate, K8[SiW11O39] (POM), was studied in the epoxidation of various olefins in acetonitrile, using hydrogen peroxide as an oxygen source. This is the first time that nickel(salen)–POM has been used as a catalyst for the liquid phase epoxidation of olefins. The complex (1) can catalyze epoxidation of various olefins including non-activated terminal olefins. The effect of reaction parameters such as temperature, solvent and oxidant on the epoxidation of styrene were investigated. In comparison with the corresponding Ni(salen), the higher yields obtained in the epoxidation of olefins catalyzed by nickel(salen)–POM.

Graphical abstractThe catalytic activity of a hybrid compound, nickel(salen)–POM (1), consisting of nickel(salen) complex covalently linked to a Keggin-type polyoxometalate (POM) was studied in the epoxidation of various olefins in acetonitrile, using hydrogen peroxide as an oxygen source. The effect of parameters such as temperature, solvent and oxidant in the epoxidation of styrene were also investigated. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Nickel(salen); Hybrid complex; Polyoxometalate; Epoxidation; Hydrogen peroxide
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Catalytic epoxidation of olefins with hydrogen peroxide by hybrid complex containing nickel(III) Schiff base complex covalently linked to polyoxometalate
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 334, Issues 1–2, 1 January 2008, Pages 106–111
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us