BE875071A - Procede de fabrication de l'acide hydroxy-4, dimethoxy-3,5 benzoique a partir de l'acide trimethoxy-3,4,5 benzoique - Google Patents
Procede de fabrication de l'acide hydroxy-4, dimethoxy-3,5 benzoique a partir de l'acide trimethoxy-3,4,5 benzoiqueInfo
- Publication number
- BE875071A BE875071A BE0/194198A BE194198A BE875071A BE 875071 A BE875071 A BE 875071A BE 0/194198 A BE0/194198 A BE 0/194198A BE 194198 A BE194198 A BE 194198A BE 875071 A BE875071 A BE 875071A
- Authority
- BE
- Belgium
- Prior art keywords
- benzoic acid
- trimethoxy
- dimethoxy
- hydroxy
- manufacturing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7810053A FR2421864A1 (fr) | 1978-04-05 | 1978-04-05 | Procede de fabrication de l'acide hydroxy-4, dimethoxy-3,5 benzoique a partir de l'acide trimethoxy-3,4,5 benzoique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE875071A true BE875071A (fr) | 1979-09-24 |
Family
ID=9206706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE0/194198A BE875071A (fr) | 1978-04-05 | 1979-03-23 | Procede de fabrication de l'acide hydroxy-4, dimethoxy-3,5 benzoique a partir de l'acide trimethoxy-3,4,5 benzoique |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4191841A (fr) |
| BE (1) | BE875071A (fr) |
| CH (1) | CH637621A5 (fr) |
| DE (1) | DE2913590A1 (fr) |
| FR (1) | FR2421864A1 (fr) |
| GB (1) | GB2019401B (fr) |
| NL (1) | NL7902577A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6670505B1 (en) | 2000-03-07 | 2003-12-30 | Eastman Chemical Company | Process for the recovery of organic acids from aqueous solutions |
| US6320061B1 (en) | 2000-06-05 | 2001-11-20 | Eastman Chemical Company | Solvent exchange process |
| US7053218B2 (en) * | 2004-09-08 | 2006-05-30 | Council Of Scientific & Industrial Research | Process for regioselective demethylation of p-methoxy group in phenolic ester and diaryl ketone moieties |
-
1978
- 1978-04-05 FR FR7810053A patent/FR2421864A1/fr active Granted
-
1979
- 1979-03-14 CH CH242479A patent/CH637621A5/fr not_active IP Right Cessation
- 1979-03-23 BE BE0/194198A patent/BE875071A/fr not_active IP Right Cessation
- 1979-03-23 US US06/023,376 patent/US4191841A/en not_active Expired - Lifetime
- 1979-03-28 GB GB7910838A patent/GB2019401B/en not_active Expired
- 1979-04-03 NL NL7902577A patent/NL7902577A/xx not_active Application Discontinuation
- 1979-04-04 DE DE19792913590 patent/DE2913590A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2421864B1 (fr) | 1980-10-24 |
| DE2913590A1 (de) | 1979-10-18 |
| FR2421864A1 (fr) | 1979-11-02 |
| CH637621A5 (fr) | 1983-08-15 |
| NL7902577A (nl) | 1979-10-09 |
| GB2019401B (en) | 1982-08-25 |
| GB2019401A (en) | 1979-10-31 |
| US4191841A (en) | 1980-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: SOC. FRANCAISE HOECHST Effective date: 19940331 |