FR2403325A1 - Prepn. of alpha-alkylphenyl-alkanoic acids - from alkyl-benzaldehyde or -acetophenone via aldehyde - Google Patents

Prepn. of alpha-alkylphenyl-alkanoic acids - from alkyl-benzaldehyde or -acetophenone via aldehyde

Info

Publication number
FR2403325A1
FR2403325A1 FR7738526A FR7738526A FR2403325A1 FR 2403325 A1 FR2403325 A1 FR 2403325A1 FR 7738526 A FR7738526 A FR 7738526A FR 7738526 A FR7738526 A FR 7738526A FR 2403325 A1 FR2403325 A1 FR 2403325A1
Authority
FR
France
Prior art keywords
alkylphenyl
alpha
prepn
benzaldehyde
alkyl
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.)
Withdrawn
Application number
FR7738526A
Other languages
French (fr)
Inventor
Francisco Javier Vila Pahi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RICORVI SA
Original Assignee
RICORVI SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RICORVI SA filed Critical RICORVI SA
Publication of FR2403325A1 publication Critical patent/FR2403325A1/en
Withdrawn legal-status Critical Current

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
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
    • C07C45/513—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being an etherified hydroxyl group
    • 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
    • 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
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/29—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with halogen-containing compounds which may be formed in situ

Abstract

Prepn. of alpha-(4-alkylphenyl)alkanoic acid of formula (I) is carried out by (a) reacting the corresp. benzaldehyde or acetophenone derivs. (II) with ClCH2OEt in the presence of an alkylmagnesium halide in THF at low temp.; (b) treating the product (III) with an acid to form the corresp. alpha-(4-alkylphenyl)alkanol (IV); and (c) oxidising (IV) with NaClO3 in the presence of sulphamic acid in an aq. medium at room temp. In the formulae, R1 is 1-5C alkyl and R is H or Me. Cpds. (I) are used as anti-inflammatory antipyretic and analgesic agents. The process gives high overall yields (e.g. 66-72%).
FR7738526A 1977-09-15 1977-12-12 Prepn. of alpha-alkylphenyl-alkanoic acids - from alkyl-benzaldehyde or -acetophenone via aldehyde Withdrawn FR2403325A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES77462396A ES462396A1 (en) 1977-09-15 1977-09-15 Prepn. of alpha-alkylphenyl-alkanoic acids - from alkyl-benzaldehyde or -acetophenone via aldehyde

Publications (1)

Publication Number Publication Date
FR2403325A1 true FR2403325A1 (en) 1979-04-13

Family

ID=8474533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738526A Withdrawn FR2403325A1 (en) 1977-09-15 1977-12-12 Prepn. of alpha-alkylphenyl-alkanoic acids - from alkyl-benzaldehyde or -acetophenone via aldehyde

Country Status (2)

Country Link
ES (1) ES462396A1 (en)
FR (1) FR2403325A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968718A (en) * 1988-01-25 1990-11-06 University Of Iowa Research Foundation Topically effective, nonsteroidal drug for use in external and internal eye inflammations
US5179124A (en) * 1988-01-25 1993-01-12 University Of Iowa Research Foundation Anti-inflammatory for use in external and internal eye inflammations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968718A (en) * 1988-01-25 1990-11-06 University Of Iowa Research Foundation Topically effective, nonsteroidal drug for use in external and internal eye inflammations
US5179124A (en) * 1988-01-25 1993-01-12 University Of Iowa Research Foundation Anti-inflammatory for use in external and internal eye inflammations

Also Published As

Publication number Publication date
ES462396A1 (en) 1978-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse