Abstract
Refluxing the oximes ( 2 ) of naphtho-[1,8-bc] pyran-3(2H)-one and ( 6 ) of 3 (2H)-benzofuranone with alcoholic hydrogen chloride give the corresponding α-alkoxy-ketones 3 , 4 , 5 and α-chloroketone 7 respectively. This transformation appears to be related to the acid conversion of N-aryhydroxylamines to o. and p. substituted anilines (BAMBERGER réarrangement.
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