CH615146A5 - Process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid - Google Patents
Process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid Download PDFInfo
- Publication number
- CH615146A5 CH615146A5 CH952775A CH952775A CH615146A5 CH 615146 A5 CH615146 A5 CH 615146A5 CH 952775 A CH952775 A CH 952775A CH 952775 A CH952775 A CH 952775A CH 615146 A5 CH615146 A5 CH 615146A5
- Authority
- CH
- Switzerland
- Prior art keywords
- product
- acid
- stage
- phenol
- difluorobiphenyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/46—Friedel-Crafts reactions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
- C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
- C07C37/055—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis the substituted group being bound to oxygen, e.g. ether group
- C07C37/0555—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis the substituted group being bound to oxygen, e.g. ether group being esterified hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/80—Ketones containing a keto group bound to a six-membered aromatic ring containing halogen
- C07C49/813—Ketones containing a keto group bound to a six-membered aromatic ring containing halogen polycyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/15—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49062074A | 1974-07-22 | 1974-07-22 | |
| US56720175A | 1975-04-16 | 1975-04-16 | |
| US05/571,165 US3992459A (en) | 1975-05-01 | 1975-05-01 | Preparation of biphenyl compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH615146A5 true CH615146A5 (en) | 1980-01-15 |
Family
ID=27413871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH952775A CH615146A5 (en) | 1974-07-22 | 1975-07-21 | Process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5134135A (da) |
| CH (1) | CH615146A5 (da) |
| DE (1) | DE2532559C3 (da) |
| DK (1) | DK145643C (da) |
| FR (1) | FR2288729A1 (da) |
| GB (2) | GB1496232A (da) |
| IE (1) | IE41582B1 (da) |
| LU (1) | LU73032A1 (da) |
| NL (1) | NL188689C (da) |
| NO (1) | NO143874C (da) |
| SE (1) | SE428560B (da) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4216340A (en) * | 1979-05-02 | 1980-08-05 | Merck & Co., Inc. | Preparation of 5-(2,4-difluorophenyl)salicylic acid and derivatives |
| IT1133963B (it) * | 1980-10-21 | 1986-07-24 | D & D Srl | Derivati piridossinici ad attivita' terapeutica,procedimento per la loro preparazione e relative composizioni farmaceutiche |
| US4482502A (en) * | 1983-04-25 | 1984-11-13 | Ethyl Corporation | Preparation of biaryl compounds |
| JPH0582493U (ja) * | 1992-04-06 | 1993-11-09 | 株式会社エースプレミアム | 走行玩具 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO120372B (da) * | 1966-09-08 | 1970-10-12 | Merck & Co Ltd | |
| US3714226A (en) * | 1970-06-09 | 1973-01-30 | Merck & Co Inc | Phenyl benzoic acid compounds |
| GB1359987A (en) * | 1970-10-12 | 1974-07-17 | Boots Co Ltd | 2-substituted biphenylyl propionic acids |
| JPS4916419A (da) * | 1972-05-31 | 1974-02-13 |
-
1975
- 1975-07-07 SE SE7507764A patent/SE428560B/xx not_active IP Right Cessation
- 1975-07-08 NL NLAANVRAGE7508127,A patent/NL188689C/xx not_active IP Right Cessation
- 1975-07-09 DK DK310075A patent/DK145643C/da not_active IP Right Cessation
- 1975-07-10 NO NO752482A patent/NO143874C/no unknown
- 1975-07-16 GB GB6938/77A patent/GB1496232A/en not_active Expired
- 1975-07-16 IE IE1582/75A patent/IE41582B1/en unknown
- 1975-07-16 GB GB29879/75A patent/GB1496231A/en not_active Expired
- 1975-07-17 FR FR7522332A patent/FR2288729A1/fr active Granted
- 1975-07-21 DE DE2532559A patent/DE2532559C3/de not_active Expired
- 1975-07-21 CH CH952775A patent/CH615146A5/de not_active IP Right Cessation
- 1975-07-21 LU LU73032A patent/LU73032A1/xx unknown
- 1975-07-22 JP JP50088944A patent/JPS5134135A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| LU73032A1 (da) | 1976-07-01 |
| DK145643B (da) | 1983-01-10 |
| DE2532559C3 (de) | 1979-10-04 |
| IE41582B1 (en) | 1980-02-13 |
| SE428560B (sv) | 1983-07-11 |
| FR2288729A1 (fr) | 1976-05-21 |
| DK145643C (da) | 1983-07-11 |
| GB1496232A (en) | 1977-12-30 |
| JPS5134135A (en) | 1976-03-23 |
| DE2532559B2 (de) | 1979-02-15 |
| NL188689B (nl) | 1992-04-01 |
| DK310075A (da) | 1976-01-23 |
| DE2532559A1 (de) | 1976-02-05 |
| NO143874C (no) | 1981-04-29 |
| NO143874B (no) | 1981-01-19 |
| JPS569496B2 (da) | 1981-03-02 |
| NL188689C (nl) | 1992-09-01 |
| NL7508127A (nl) | 1976-01-26 |
| GB1496231A (en) | 1977-12-30 |
| NO752482L (da) | 1976-01-23 |
| IE41582L (en) | 1976-01-22 |
| FR2288729B1 (da) | 1977-12-09 |
| SE7507764L (sv) | 1976-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |