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Fe3O4 was employed as an efficient and magnetically separable catalyst for the synthesis of amides via one-pot Beckmann
rearrangement of ketones under solvent-free conditions. Various secondary amides were synthesized by this method in moderate to good
yields. The catalyst showed high thermal stability and was recovered and reused at least five times without any considerable loss of activity. The present process is environmentally benign and economical.
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