SU602492A1 - Method of preparing fluorine-containing carboxylic acids with terminal multiple link - Google Patents
Method of preparing fluorine-containing carboxylic acids with terminal multiple linkInfo
- Publication number
- SU602492A1 SU602492A1 SU762392565A SU2392565A SU602492A1 SU 602492 A1 SU602492 A1 SU 602492A1 SU 762392565 A SU762392565 A SU 762392565A SU 2392565 A SU2392565 A SU 2392565A SU 602492 A1 SU602492 A1 SU 602492A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- carboxylic acids
- terminal multiple
- containing carboxylic
- multiple link
- preparing fluorine
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
II
Изобретение относитс к новому способу получени новых фторированных карбоновых кислот (Ci,- Сб) с концевой кратной св зью общей формулыThe invention relates to a new process for the preparation of new fluorinated carboxylic acids (Ci, - Sb) with a terminal multiple bond of the general formula
(СРг)СООН(CPG) COOH
где ,ce, п 1,2,3,where, ce, p 1,2,3,
которые могут найти применение в каче стве исходных компонентов дл синтеза поверхностно-активных веществ, смазочных материалов, полимеров, содержащихwhich can be used as starting components for the synthesis of surfactants, lubricants, polymers containing
карбоксильные группы, триазиновых каучуков и т.д.carboxyl groups, triazine rubbers, etc.
Известен способ получени (фторсодержащих .карбоновых кислот с концевой кратной св зью, в частности 2,2,3,3,4, 5,5-гептафторпент-4-ен-1-овой кислоты (А). В основе ее способа получени Лежит реакци пиролиза динатриевой соли адипиновой кислоты, с после о ющим гидролизом образовавшегос фторангидркда кислоты А l .A known method of producing (fluorine-containing. Carboxylic acids with terminal multiple bonds, in particular, 2,2,3,3,4, 5,5-heptafluoropent-4-ene-1-oic acid (A). The basis of its method of obtaining is the reaction of pyrolysis of adipic acid disodium salt, followed by hydrolysis of the resulting acid fluoride.
Существенным недостатком указанного способа вл етс тот факт, чт.о кис-25 лота А - это побочный продукт реакции и образуетс с низким выходом-21% (из расчета на динатриевую соль адипиновой кислоты). Ijjiuiai/ .1 Известен также способ получени фтор- содержащих карбоновых кислот с концевой кратной св зью формулы cceH cctccJFjijC O путем взаимодействи водной гидроокиси кали с Ч, -ненасыщенными цикличесГоТ кимй кетонами 2J .A significant disadvantage of this method is the fact that chic-25 lot A is a by-product of the reaction and is formed in a low yield of -21% (based on the adipic acid disodium salt). Ijjiuiai / .1 There is also known a method for producing fluorine-containing carboxylic acids with terminal multiple bonds of the formula cceH cctccJFjijC O by the interaction of aqueous potassium hydroxide with H, unsaturated cyclic Kim ketones 2J.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762392565A SU602492A1 (en) | 1976-08-02 | 1976-08-02 | Method of preparing fluorine-containing carboxylic acids with terminal multiple link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762392565A SU602492A1 (en) | 1976-08-02 | 1976-08-02 | Method of preparing fluorine-containing carboxylic acids with terminal multiple link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU602492A1 true SU602492A1 (en) | 1978-04-15 |
Family
ID=20672782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762392565A SU602492A1 (en) | 1976-08-02 | 1976-08-02 | Method of preparing fluorine-containing carboxylic acids with terminal multiple link |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU602492A1 (en) |
-
1976
- 1976-08-02 SU SU762392565A patent/SU602492A1/en active
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