Solvent-free microwave-assisted Beckmann rearrangement of benzaldehyde and 2-hydroxyacetophenone oximes

Article abstract of DOI:10.1016/S0040-4039(99)01159-4

Beckmann rearrangements of benzaldehyde and 2-hydroxyacetophenone were largely improved by performing solvent-free reactions in the presence of one equivalent of anhydrous zinc chloride when compared to conventional heating under the same conditions, yields are significantly enhanced under microwave activation.