Novel pathways for the formation of phenylpyrroles

Abstract Treatment of 3-phenyl-5,6-dihydro-(4H) -1,2- oxazine (5) with KOH/DMSO at 100 °C g ave 2-phenylpyrrole (2a) ; similar treatment of the nitrone (6) g ave 2-methyl-5-phenylpyrrole (12) .