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Title
Synthesis of 3-Aroylpyrrolo[1,2-a][4,1]benzoxazepine-1,2,4(6H)-triones by the Reaction of 2-(2-Aryl-2-oxoethylidene)-1,5-dihydro-4,1-benzoxazepin-3(2H)-ones with Oxalyl Chloride.
The condensation of aroylpyruvic acids with o-aminobenzyl alcohol gave (Z)-2-(2-aryl-2-oxo-ethylidene)-1,5-dihydro-4,1-benzoxazepin-3(2H)-ones which reacted with oxalyl chloride to afford 3-aroylpyr-rolo-[1,2-a][4,1]benzoxazepine-1,2,4(6H)-triones.