A. Levai et al., OXAZEPINES AND THIAZEPINES .31. SYNTHESIS OF 2,2-DIMETHYLBENZOXAZEPINONES BY THE BECKMANN REARRANGEMENT OF 2,2-DIMETHYL-4-CHROMANONE OXIMES, Heterocycles, 38(2), 1994, pp. 305-318
2, 3-Dihydro-2,2-dimethyl-1,4-benzoxazepin-5(4H)-ones and ihydro-2,2,6
-trimethyl-1,5-benzoxazepin-4(5H)-ones have been synthesized by the Be
ckmann rearrangement of 2,2-dimethyl-4-chromanone oximes.