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N-heterocyclic carbomethoxylation catalyzed by ionic liquids in the presence of dimethyl carbonate

Paper ID Volume ID Publish Year Pages File Format Full-Text
52973 46892 2009 4 PDF Available
Title
N-heterocyclic carbomethoxylation catalyzed by ionic liquids in the presence of dimethyl carbonate
Abstract

A procedure for the synthesis of N-heterocyclic carbamates from N-heterocycles and dimethyl carbonate catalyzed by ionic liquids was investigated. [Bmim]OH was found to be the most active catalyst among the applied ionic liquids. Effects of the amount of ionic liquid, reaction temperature and the reusability of ionic liquid were also investigated. Ninety six percentage yield and 100% selectivity were obtained under the optimal conditions when using indole as a reactant. Additionally, [Bmim]OH can be reused at least up to four times without any decrease of activity. The possible reaction mechanism was discussed based on the reaction results.

Keywords
Dimethyl carbonate; Ionic liquid; Carbamates; Mechanism
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N-heterocyclic carbomethoxylation catalyzed by ionic liquids in the presence of dimethyl carbonate
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 665–668
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
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