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2 067 087

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C1

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IPC

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Application

93043685/04, 1993-08-30

(22)

Actual filing date

1993-08-30

(45)

Published

1996-09-27

(72)

Inventor

Pomogaeva L.S.Sukhinina N.G.Zajats E.V.Shejn S.M.Sudneko V.V.Barkovskij V.I.Mal'Chevskaja T.N.

(73)

Holder

Moskovskoe Nauchno-Proizvodstvennoe Ob"Edinenie

PROCESS FOR PREPARING N-PHENYLANTHRANYLIC ACID Russian patent published in 1996 - IPC

Abstract RU 2067087 C1

FIELD: chemical industry. SUBSTANCE: ortho-chlorobanzoic acid and aniline are condensed in the presence of cuprous chloride in amount of 0.02-0.10 mole per mole of acid or cupric salt in amount of 0.04-0.07 mole per mole of acid, sodium or potassium carbonate and water. Condensation is carried d out at ortho-chlorobenzoic acid to sodium or potassium carbonate molar ratio of 1:0.70-1.07. EFFECT: more efficient preparation process. 1 tbl

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RU 2 067 087 C1

Authors

Pomogaeva L.S.

Sukhinina N.G.

Zajats E.V.

Shejn S.M.

Sudneko V.V.

Barkovskij V.I.

Mal'Chevskaja T.N.

Dates

1996-09-27—Published

1993-08-30—Filed

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