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Heterogeneous Baeyer–Villiger oxidation of cyclic ketones using tert-BuOOH as oxidant

Paper ID Volume ID Publish Year Pages File Format Full-Text
42068 45909 2010 9 PDF Available
Title
Heterogeneous Baeyer–Villiger oxidation of cyclic ketones using tert-BuOOH as oxidant
Abstract

The [Sn(salen)]2+ complex moiety has been immobilized into NaY zeolite by in situ synthesis of the salen complex in NaY matrix to prepare a new catalyst, Sn(salen)-NaY. The catalyst has been characterized by UV–vis, infrared (IR) spectroscopy, X-ray powder diffraction, Mössbauer and 119Sn NMR spectroscopy. The catalyst shows impressive catalytic performance (with high selectivity) in Baeyer–Villiger oxidation of various cyclic ketones including 2-adamantanone, cyclohexanone, cyclopentanone, 4-methylcyclohexanone, 2-methylcyclohexanone using tert-butyl hydroperoxide (tert-BuOOH) as an oxidant. The yield of ɛ-caprolactone from catalytic oxidation of cyclohexanone over Sn(salen)-NaY catalyst was ca. 75%. The catalyst can be recycled for several times without any major decline in catalytic activity.

Graphical abstractSn(salen)Cl2 complex was encapsulated into zeolite (NaY) matrix by a template synthesis method. The Sn(salen)-NaY catalyst has been characterized by UV–vis, infrared (IR) spectroscopy, X-ray diffraction, Mössbauer spectra, and 119Sn MAS NMR studies. The catalyst shows high catalytic activity in Baeyer–Villiger oxidation of various cyclic ketones. Recycling of the catalyst shows no major change in its catalytic efficacy.Figure optionsDownload full-size imageDownload high-quality image (17 K)Download as PowerPoint slide

Keywords
Heterogeneous catalytic oxidation; NaY zeolite; Sn(salen)Cl2; Immobilization; Baeyer–Villiger oxidation
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Heterogeneous Baeyer–Villiger oxidation of cyclic ketones using tert-BuOOH as oxidant
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 382, Issue 1, 30 June 2010, Pages 90–98
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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
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Any Questions? feel free to contact us