4.2 Article

Copper-exchanged bentonite: a reusable catalysis for the formation of alkoxycarbonyl nitrile ylides under microwave irradiation

Journal

JOURNAL OF CHEMICAL RESEARCH
Volume -, Issue 3, Pages 149-151

Publisher

SCIENCE REVIEWS 2000 LTD
DOI: 10.3184/174751912X13298456741454

Keywords

ethyldiazoacetate; carbene; nitrile; copper exchanged bentonite; oxazole; nitrile ylide; microwave irradiation

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Ethyldiazoacetate reacts as a carbene precursor in presence of copper exchanged bentonite. Reaction with excess nitrile gave oxazole derivatives. Their formation is explained by intramolecular 1,5-cyclisation of alkoxycarbonyl substituted nitrile ylide intermediate.

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