Abstract
This review presents a systematic and comprehensive survey of the method of preparation and the chemical reactivity of 2-acetylphenothiazines. The target compounds are important intermediates for the synthesis of a variety of synthetically useful and novel heterocyclic systems with different ring sizes such as isoxazole, pyrazole, pyrimidine, pyridine, quinolone, pyrazolo[3,4-d] pyridazine, 1,5-benzothiazepine, and triazolo[1,5-a] pyridine.
Graphical Abstract