They can be formed by reacting ketones with hydraz
They can be formed by reacting ketones with hydrazoic acid in the Schmidt reaction, or from the Willgerodt Rearrangement by reacting an aryl alkyl ketone with an ammonium polysulfide. Cyclic ones are formed in the Beckmann rearrangement, and their hydrolysis is made more difficult due to contributions from a secondary resonance form. The Hoffman rearrangement converts a primary one of these into a primary amine with one fewer carbon atoms, and they are formed by reacting a carboxylic acid with an amine, as in protein synthesis.  For 10 points, name these compounds with a carbonyl group bonded to a nitrogen atom.
They can be formed by reacting ketones with hydrazoic acid in the Schmidt reaction, or from the Willgerodt Rearrangement by reacting an aryl alkyl ketone with an ammonium polysulfide.
amide