TRANSPOSITION DES OXIMES DE LA 2h-NAPHTOPYRANNONE-3 ET DE LA 2H-BENZOFURANNONE-3

DOI: 10.1016/S0040-4039(00)87075-6

Source and publish data:

Tetrahedron Letters p. 1255 - 1256 (1982)

Update date:2022-07-29

Topics:

Authors:

Hardy, Jean-Claude

Venet, Marc

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Article abstract of DOI:10.1016/S0040-4039(00)87075-6

Refluxing the oximes (2) of naphto<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-arylhydroxyamines to o. and p. substituted anilines (BAMBERGER rearrangement).

Full text of DOI:10.1016/S0040-4039(00)87075-6

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