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Catalytic asymmetric epoxidation of limonene using manganese Schiff-base complexes immobilized in ionic liquids

Paper ID Volume ID Publish Year Pages File Format Full-Text
52387 46872 2008 5 PDF Available
Title
Catalytic asymmetric epoxidation of limonene using manganese Schiff-base complexes immobilized in ionic liquids
Abstract

The asymmetric epoxidation of limonene has been performed using Jacobsen’s catalyst dissolved in 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMI · BF4) ionic liquid and with hydrogen peroxide oxidant giving high stereoselectivity. Limonene was selectively converted into 1,2-epoxi-p-ment-8-enes with a diastereoisomeric excess of 74% and conversions up to 70%. Chirality of limonene was found to play an important role in stereochemical formation of new chiral centers because the synthesis occurs with double asymmetric induction.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Ionic liquids; Asymmetric epoxidation; Chiral Schiff-base; Manganese; Hydrogen peroxide; Limonene
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Catalytic asymmetric epoxidation of limonene using manganese Schiff-base complexes immobilized in ionic liquids
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 1, January 2008, Pages 135–139
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
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Full-text PDF Download
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