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2 102 383

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Application

96111117/04, 1996-06-03

(22)

Actual filing date

1996-06-03

(45)

Published

1998-01-20

(72)

Inventor

Konarev A.A.Pomogaeva L.S.Zhdamarova V.N.Potapenko S.G.

(73)

Holder

Gosudarstvennyj Nauchnyj Tsentr Rf

METHOD OF PREPARING 4-AMINOBENZAMIDE Russian patent published in 1998 - IPC

Abstract RU 2102383 C1

FIELD: manufacture of photostable and heat resistant pigments. SUBSTANCE: 4-aminobenzamide is prepared by electrochemically reducing 4-nitrobenzamide in the presence of heptaethylene glycol ester of 2-naphtholsulfonic acid at current density of 510A/sq dm at 50-60 C and subsequently recovering the desired product by desalting. Method makes it possible to attain 89-92% of product and 60-66.4 % of current density. EFFECT: more efficient preparation method.

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RU 2 102 383 C1

Authors

Konarev A.A.

Pomogaeva L.S.

Zhdamarova V.N.

Potapenko S.G.

Dates

1998-01-20—Published

1996-06-03—Filed

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