Oxazolones or oxazolidinone or azlactones are five membered heterocyclic lactams derived from oxazole, also known as (4H)-oxazol 5-ones. Oxazolones have been very widely explored as important synthons for the synthesis of several biologically active molecules. Oxazolones derivatives have been used as starting materials for the synthesis of modified á- amino acids, peptides, other heterocycles, and biosensors. This review preesnts the various methods of synthesis of oxazolone derivatives.

Keywords: Oxazolone; Hippuric Acid; Benzoylglycine.