Patenton — panteon of patents

(19)

RU

(11)

2 037 482

(13)

C1

(51)

IPC

(21) (22)

Application

5040770/04, 1992-04-30

(22)

Actual filing date

1992-04-30

(45)

Published

1995-06-19

(72)

Inventor

Bogachev A.A.Kobrina L.S.

(73)

Holder

Novosibirskij Institut Organicheskoj Khimii So Ran

PROCESS FOR TETRAFLUOROPHTHALIC ACID Russian patent published in 1995 - IPC

Abstract RU 2037482 C1

FIELD: organic chemistry. SUBSTANCE: the product: tetrafluorophthalic acid of the empirical formula: C8H2O4F4, mp 152-153 C. Reagent 1: octafluoronaphthyl. Reagent 2: 29-34% aqueous hydrogen peroxide. Reaction conditions: 60-80 C; a water-miscible organic solvent, silica gel having 100- 2000 mcm fractions with a pH o 6.0-7.0 at an octafluoronaphthalene to hydrogen peroxide to silica gel ratio of 1.5-5:25-75:5-20. EFFECT: greater efficiency of the process.

Similar patents RU2037482C1

Title Year Author Number
METHOD OF OBTAINING 4-AMINOBEZOLFURANE 1984
  • Volodarskij L.B.
  • Samsonov V.A.
 RU1187432C
1S,3R - 2,2 - DIMETHYL -3(2-METHYL -2- OXYPROPYL) -CYCLOPROPANECARBONITRILE AS INTERMEDIATE COMPOUND IN SYNTHESIS OF PYRETHROID INSECTICIDE OF DELTAMETRINE AND METHOD FOR PRODUCTION OF INTERMEDIATE COMPOUND 1989
  • Rukavishnikov A.V.
  • Tkachev A.V.
 RU1679761C
METHOD OF SYNTHESIS CHLOROAZINES CONTAINING O-HYDROXYPHENYL GROUP 1991
  • Krivopalov V.P.
  • Nikolaenkova E.B.
  • Mamaev V.P.
 RU2026295C1
1R,3S-2,2- DIMETHYL -3(2-METHYL -2- OXYPROPYL) -CYCLOPROPANECARBONITRILE AS INTERMEDIATE COMPOUND IN SYNTHESIS OF PYRETHROIDE INSECTICIDE - DELTAMETRINE AND METHOD FOR PRODUCING INTERMEDIATE COMPOUND 1989
  • Rukavishnikov A.V.
  • Tkachev A.V.
 RU1679760C
METHOD OF PREPARING VAT DYES AND PIGMENTS CONTAINING PERYLENE FRAGMENT 1997
  • Adonin N.Ju.
  • Starichenko V.F.
  • Rjabinin V.A.
 RU2128200C1
4-HYDROXY-2,6-DIHYDROXYIMINOCYCLOHEXANONE AS A PARENT PRODUCT FOR SYNTHESIS OF 4-HYDROXYBENZOFURAZAN, AND A METHOD OF 4-HYDROXYBENZOFURAZAN SYNTHESIS 1987
  • Volodarskij L.B.
  • Samsonov V.A.
 RU1589598C
METHOD FOR MANUFACTURING URSOLIC ACID 1991
  • Shevtsov S.A.
  • Raldugin V.A.
  • Shchukin G.I.
 SU1816346A3
CYCLOPROPANECARBOXYLIC ACID PYRAZOLIDES IN THE FORM MIXTURE OF DIASTEREOMERS AS INTERMEDIATE COMPOUNDS FOR PREPARATION PYPETROIDS 1995
  • Popov S.A.
  • Tkachev A.V.
 RU2095351C1
METHOD OF PREPARING PARTIALLY FLUORINATED BENZOIC ACIDS 1999
  • Adonin N.Ju.
  • Starichenko V.F.
 RU2155185C1
METHOD OF SYNTHESIS OF MERCAPTANES COMPRISING STERIC HINDRANCE PHENOL FRAGMENTS 2000
  • Krysin A.P.
  • Mashkina A.V.
  • Knjazev V.V.
 RU2184727C2

RU 2 037 482 C1

Authors

Bogachev A.A.

Kobrina L.S.

Dates

1995-06-19—Published

1992-04-30—Filed

read Similar patents