SU469681A1 - The method of obtaining fluorinated diphenoxyacetic acids - Google Patents
The method of obtaining fluorinated diphenoxyacetic acidsInfo
- Publication number
- SU469681A1 SU469681A1 SU1903281A SU1903281A SU469681A1 SU 469681 A1 SU469681 A1 SU 469681A1 SU 1903281 A SU1903281 A SU 1903281A SU 1903281 A SU1903281 A SU 1903281A SU 469681 A1 SU469681 A1 SU 469681A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acids
- diphenoxyacetic
- fluorinated
- obtaining fluorinated
- obtaining
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
раствор приливают при перемешивании и температуре не выше 25-30°С к этилату натри . К образовавшейс смеси добавл ют при перемешивании раствор 2-фтор-4-хлорфенол та натри в н-пропаноле и кип т т с обратным холодильником 2 час. По окончании реакции спирт отгон ют, остаток раствор ют в воде и подкисл ют сол ной кислотой. Образовавшийс осадок отфильтровывают, промывают водой и сушат на воздухе. Выход целевого продукта - ди-(2-фтор-4 -. хлорфенокси - уксусной кислоты 4,4 г (55%); т. пл. 126°С.the solution is poured with stirring and at a temperature not higher than 25-30 ° C to sodium ethoxide. Under stirring, a solution of sodium 2-fluoro-4-chlorophenol in n-propanol is added to the resulting mixture and the mixture is heated under reflux for 2 hours. Upon completion of the reaction, the alcohol is distilled off, the residue is dissolved in water and acidified with hydrochloric acid. The precipitate formed is filtered off, washed with water and air dried. The yield of the target product is di- (2-fluoro-4 -. Chlorophenoxy - acetic acid 4.4 g (55%); mp. 126 ° C.
Найдено, %: С 48,09; Н 2,39; F 10,94; С1 20,05. Мол. вес 343.Found,%: C 48.09; H 2.39; F 10.94; C1 20.05. Mol weight 343.
СнН8С12Р2О4.SnH8C12P2O4.
ИК-спектр, см-1; 1763, 1586, 1480, 1464, 1176, 1062, 777, 726.IR spectrum, cm-1; 1763, 1586, 1480, 1464, 1176, 1062, 777, 726.
В услови х примеров 1-3 получают :и Другие фторированные дифеноксиуксусные кИСЛОты , перечень и показатели которых приведены в таблице.Under the conditions of Examples 1-3, the following are obtained: and Other fluorinated diphenoxy acetic acids, the list and indicators of which are listed in the table.
Пред.мет изобретени Способ получени фторированных дифеноксиуксусных кислот, отличающийс тем, 5 что фторированный фенол подвергают взаимодействию с дихлоруксусной кислотой в среде н-пропанола при температуре 95-97°С с последующим выделением целевого продукта известными приемами, The method of producing fluorinated diphenoxyacetic acids, characterized in that 5 fluorinated phenol is reacted with dichloroacetic acid in n-propanol medium at a temperature of 95-97 ° C, followed by separation of the target product by known methods,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1903281A SU469681A1 (en) | 1973-04-02 | 1973-04-02 | The method of obtaining fluorinated diphenoxyacetic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1903281A SU469681A1 (en) | 1973-04-02 | 1973-04-02 | The method of obtaining fluorinated diphenoxyacetic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU469681A1 true SU469681A1 (en) | 1975-05-05 |
Family
ID=20548245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1903281A SU469681A1 (en) | 1973-04-02 | 1973-04-02 | The method of obtaining fluorinated diphenoxyacetic acids |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU469681A1 (en) |
-
1973
- 1973-04-02 SU SU1903281A patent/SU469681A1/en active
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