Base catalyzed rearrangement in which α-halo ketone or cyclopropane having at least one α-H reacts with base give carboxylic acid or their derivatives. In favorskii rearrangement, the base decides our product e.g. if alkoxide is used as a base then an ester will be formed. If hydroxide is used as a base then carboxylic acid…

                               “The acid-induced reaction that converts oxime to amide is called Beckmann rearrangement”  In the Beckmann rearrangement, migration of the group does not depend upon migration aptitude but depends upon the orientation of the group related to a hydroxyl group. In…