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Organic Synthesis in Solid Media. Alumina Supported Sodium Hydrogen Sulfate as an Effective and Reusable Catalyst for 'One-Pot' Synthesis of Amides from Ketones in Dry Media Under Microwave Irradiation

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A great variety of amides were effectively isolated in high yields from the reaction of ketones and hydroxylamine hydrochloride in the presence of alumina supported sodium hydrogen sulfate catalyst in dry media under microwave irradiation in solvent-free conditions. The major products were formed by the migration of the aryl group of the intermediate ketoximes during Beckmann rearrangement. The catalyst can be reused up to six times after simple washing with diethyl ether.

Keywords: alumina supported sodium hydrogen sulfate; amides; green chemistry

Document Type: Review Article


Affiliations: Department of Chemistry, Annamalai University, Annamalainagar - 608 002, India.

Publication date: August 1, 2005

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  • Letters in Organic Chemistry publishes original letters on all areas of organic chemistry including synthesis, bioorganic, medicinal, natural products, organometallic, supramolecular, molecular recognition and physical organic chemistry. The emphasis is placed on publishing quality papers very rapidly. Letters are processed rapidly and take full advantage of the Internet technology both for the submission and the review of the manuscripts.
    The journal is essential reading for all organic chemists both in academia and industry.

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