FR2394520A2 - Procede de preparation d'acides 2-arylalcanoiques et de leurs sels et esters - Google Patents
Procede de preparation d'acides 2-arylalcanoiques et de leurs sels et estersInfo
- Publication number
- FR2394520A2 FR2394520A2 FR7818002A FR7818002A FR2394520A2 FR 2394520 A2 FR2394520 A2 FR 2394520A2 FR 7818002 A FR7818002 A FR 7818002A FR 7818002 A FR7818002 A FR 7818002A FR 2394520 A2 FR2394520 A2 FR 2394520A2
- Authority
- FR
- France
- Prior art keywords
- preparation
- ions
- arylalcanoic
- esters
- salts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/28—Preparation of ethers by reactions not forming ether-oxygen bonds from acetals, e.g. by dealcoholysis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/48—Preparation of compounds having groups
- C07C41/50—Preparation of compounds having groups by reactions producing groups
- C07C41/56—Preparation of compounds having groups by reactions producing groups by condensation of aldehydes, paraformaldehyde, or ketones
-
- 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
-
- 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
- C07C49/82—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
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)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
L'addition concerne la préparation de 2-aryl-(alcanoates en C3 à C6 ) suivant le brevet principal. Un énol-éther d'une arylalkylcétone est amené à réagir avec un sel de thallium trivalent dans un solvant organique. Les ions T1**+++ peuvent être régénérés par addition d'un péracide et d'une forme réactive de Mu, Ru, Co, Ir, Hf, Os ou Nb pour oxyder les ions T1**+ en ions T1**+++. L'ester intermédiaire est ensuite transformé en acide 2-aryl-(alcanoïaque en C3 à C6 ) correspondant ou en sel de cet acide. Application à la préparation de médicaments acides tels que ibuprofène, flurbiprofène, fénoprofène, naproxène, etc.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/807,032 US4135051A (en) | 1977-06-16 | 1977-06-16 | Process for preparing arylalkanoic acid derivatives |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2394520A2 true FR2394520A2 (fr) | 1979-01-12 |
Family
ID=25195406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7818002A Pending FR2394520A2 (fr) | 1977-06-16 | 1978-06-15 | Procede de preparation d'acides 2-arylalcanoiques et de leurs sels et esters |
Country Status (3)
Country | Link |
---|---|
US (1) | US4135051A (fr) |
DE (1) | DE2824856A1 (fr) |
FR (1) | FR2394520A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0627398A1 (fr) * | 1993-06-01 | 1994-12-07 | Hüls America Inc. | Procédé pour la préparation d'ortho esters et 1,1-dialcoxycycloalcanes |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IE50897B1 (en) * | 1980-02-26 | 1986-08-06 | Blaschim Spa | Process for preparing esters of alkanoic acids via rearrangement of alpha-haloketals |
US4472431A (en) * | 1983-08-18 | 1984-09-18 | Methodist Hospital Of Indiana, Inc. | Method for treatment of shock |
US4692227A (en) * | 1986-12-01 | 1987-09-08 | W. R. Grace & Co. | Oxidation of organic compounds using thallium ions |
JPS6363683A (ja) * | 1986-09-04 | 1988-03-22 | Shin Etsu Chem Co Ltd | (フェニルジメチルカルビニル)シラン化合物の製造方法 |
CA2095127C (fr) * | 1990-11-19 | 1998-06-30 | Albemarle Corporation | Procede pour ameliorer les caracteristiques d'ecoulement de l'ibuprofene crystalline |
US5223640A (en) * | 1992-12-23 | 1993-06-29 | Hoechst Celanese Corporation | Preparation of optically active α-aryl propionic acids |
US6080888A (en) * | 1997-01-08 | 2000-06-27 | Albemarle Corporation | Preparation of olefinic compounds and carboxylic derivatives thereof |
US6096920A (en) * | 1997-01-08 | 2000-08-01 | Albemarle Corporation | Preparation of carboxylic compounds and their derivatives |
US5792886A (en) * | 1997-01-08 | 1998-08-11 | Albemarle Corporation | Production of racemic 2-(6-methoxy-2-naphthyl) propionic acid of precursors thereof |
US7021379B2 (en) * | 2003-07-07 | 2006-04-04 | Halliburton Energy Services, Inc. | Methods and compositions for enhancing consolidation strength of proppant in subterranean fractures |
US10865171B1 (en) * | 2019-09-04 | 2020-12-15 | Eastman Chemical Company | Process to make aromatic enol ethers and olefin isomers of aromatic enol ethers |
US10858304B1 (en) * | 2019-09-04 | 2020-12-08 | Eastman Chemical Company | Aromatic enol ethers |
-
1977
- 1977-06-16 US US05/807,032 patent/US4135051A/en not_active Expired - Lifetime
-
1978
- 1978-06-06 DE DE19782824856 patent/DE2824856A1/de not_active Withdrawn
- 1978-06-15 FR FR7818002A patent/FR2394520A2/fr active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0627398A1 (fr) * | 1993-06-01 | 1994-12-07 | Hüls America Inc. | Procédé pour la préparation d'ortho esters et 1,1-dialcoxycycloalcanes |
US5401885A (en) * | 1993-06-01 | 1995-03-28 | Huls America, Inc. | Method of preparing ortho esters and 1.1-dialkoxycycloalkanes |
US5550299A (en) * | 1993-06-01 | 1996-08-27 | Huls America Inc. | Method of preparing 1.1-dialkoxycycloalkanes |
Also Published As
Publication number | Publication date |
---|---|
DE2824856A1 (de) | 1979-01-04 |
US4135051A (en) | 1979-01-16 |
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