Document Type and Number:
Japanese Patent JPS5516494
Kind Code:
B2
Abstract:
A process for producing a 2-tertiary-alkyl substituted anthraquinone, characterized by carrying out catalytic oxidation of a diphenylmethane type compound having the formula I wherein R1 and R2 are different from each other, and independently hydrogen or tertiary-alkyl having 4 and 5 carbon atoms with the proviso that one of R1 and R2 is hydrogen, and R3 is alkyl having 1-3 carbon atoms, in vapor phase in the presence of a catalyst comprising vanadium oxide is disclosed.
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Application Number:
JP7928175A
Publication Date:
May 02, 1980
Filing Date:
June 25, 1975
Export Citation:
International Classes:
C07C50/18; B01J23/22; C07B61/00; C07C45/00; C07C46/02; C07C67/00