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2 183 621

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IPC

(21) (22)

Application

2001105579/04, 2001-02-27

(24)

Start date

2001-02-27

(22)

Actual filing date

2001-02-27

(45)

Published

2002-06-20

(72)

Inventor

Varfolomeev L.I.Grodetskij S.A.Dudkin V.V.Kal'K V.R.Kat'Janova V.R.Kozlov N.A.Kurakov V.A.Matveev A.A.Kaurova G.I.Moldavskij D.D.Matalin V.A.Timofeev S.N.Fedorova T.E.Shkul'Tetskaja L.V.Furin G.G.Ki Van Chi

(73)

Holder

Gup Ehlektroliznyj Khimicheskij Kombinat"

METHOD OF PRODUCING ACID FLUORIDE OF SULFONIC ACIDS Russian patent published in 2002 - IPC

Abstract RU 2183621 C1

FIELD: improved methods of production of acid fluorides of sulfonic acids. SUBSTANCE: acid fluorides of sulfonic acids are produced by treatment of corresponding acid chlorides with anhydrous hydrogen fluoride in presence of chromium-magnesium catalyst at temperature of 80-200 C. Invention products find wide application as biologically active compounds and as intermediate products for organic synthesis, particularly, for production of acid fluorides of perfluorated sulfonic acids by electrochemical fluorination. Proposed method excludes hydrolysis and use of fire-hazardous organic solvents with preserved high yield of desired products. EFFECT: higher efficiency. 1 tbl, 7 ex

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RU 2 183 621 C1

Authors

Varfolomeev L.I.

Grodetskij S.A.

Dudkin V.V.

Kal'K V.R.

Kat'Janova V.R.

Kozlov N.A.

Kurakov V.A.

Matveev A.A.

Kaurova G.I.

Moldavskij D.D.

Matalin V.A.

Timofeev S.N.

Fedorova T.E.

Shkul'Tetskaja L.V.

Furin G.G.

Ki Van Chi

Dates

2002-06-20—Published

2001-02-27—Filed