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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS631933
Kind Code:
B2
Abstract:
A method for synthesizing p- or o-benzoquinone derivatives represented by formula III or IV by oxidizing, with an aqueous hypohalite solution having a pH of from 8 to 10, a p- or o-hydroquinone derivative represented by formula I or II Oxidation is conducted at a temperature between -20 DEG C. and 35 DEG C., in the presence of a quaternary ammonium salt phase transfer catalyst.

Inventors:
ISHII FUMIO
KUZUMI KENICHI
Application Number:
JP1088480A
Publication Date:
January 14, 1988
Filing Date:
January 31, 1980
Export Citation:
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Assignee:
KONIKA KK
International Classes:
C07C50/04; C07C45/00; C07C46/06; C07C50/02; C07C50/06; C07C50/08; C07C50/10; C07C67/00