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2 061 669

(13)

C1

(51)

IPC

(21) (22)

Application

5046866/04, 1992-04-10

(22)

Actual filing date

1992-04-10

(45)

Published

1996-06-10

(72)

Inventor

Matveev K.I.Zhizhina E.G.Odjakov V.F.Parmon V.N.

(73)

Holder

Institut Kataliza Sibirskogo Otdelenija Ran

PROCESS FOR PREPARING 2-METHYL-1,4-NAPHTHAQUINONE Russian patent published in 1996 - IPC

Abstract RU 2061669 C1

FIELD: preparation of 2-methyl-1,4-naphthaquinone. SUBSTANCE: product: 2-methyl-1,4-naphthaquinone. Reagent 1: 2-methyl-1-naphthol or mixture thereof with 2,4- dimethyl-1-naphthol. Reagent 2: 0.2-0.45 molar aqueous solution of acid salt of molybdovanadophosphoric acid with transition metal consisting of Me2+a

H3+n-azPVnM12-nO40 wherein Me2+a
= Co2+, Fe3+, Cr3+, Cu2+, Mn2+ or Co2++Fe3+,, n is more than 1 and less than 4. Reaction conditions: reaction is carried out at 40-70 C in inert gas atmosphere. EFFECT: more efficient preparation process. 3 tbl

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RU 2 061 669 C1

Authors

Matveev K.I.

Zhizhina E.G.

Odjakov V.F.

Parmon V.N.

Dates

1996-06-10—Published

1992-04-10—Filed

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