Keggin-type Bronsted dodecatungstophosphoric acid: a quasi homogenous and reusable catalyst system for liquid phase Beckmann rearrangement |
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| Authors: | Gagandeep Kaur Jaspreet Kaur RajputPriya Arora Nisha Devi |
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| Affiliation: | Department of Chemistry, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India |
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| Abstract: | A variety of ketoximes, prepared from corresponding ketones, undergo Beckmann rearrangement using H3PW12O40 (DTPA) in acetonitrile under reflux to yield N-substituted amides and lactams in good to excellent yields (72–96%). The present method provides an efficient, clean, eco-friendly, and simple synthesis. The catalyst is cheap, moisture tolerant, recoverable, and reusable without much loss of its activity. |
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| Keywords: | Beckmann rearrangement H3PW12O40 (DTPA) Ketoximes Quasi homogenous catalyst N-substituted amides |
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