Document Type and Number:
Japanese Patent JPS5647892
Kind Code:
B2
Abstract:
1335510 Production of benzoquinones KOPPERS CO Inc 25 July 1972 [15 Nov 1971] 34795/72 Heading C2C The invention comprises a method for the production of a benzoquinone from an aminophenol or an aromatic diamine in which the aminophenol or aromatic diamine is reacted with a pentavalent vanadium compound in an acidic aqueous solution.
Application Number:
JP8859572A
Publication Date:
November 12, 1981
Filing Date:
September 04, 1972
Export Citation:
International Classes:
C07C50/04; B01J38/00; C07C45/00; C07C46/06; C07C67/00