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GB984120A - Anthranilic acid derivatives and methods for producing same - Google Patents

Anthranilic acid derivatives and methods for producing same

Info

Publication number
GB984120A
GB984120A GB22726/61A GB2272661A GB984120A GB 984120 A GB984120 A GB 984120A GB 22726/61 A GB22726/61 A GB 22726/61A GB 2272661 A GB2272661 A GB 2272661A GB 984120 A GB984120 A GB 984120A
Authority
GB
United Kingdom
Prior art keywords
general formula
group
methyl
radical
cooh
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.)
Expired
Application number
GB22726/61A
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.)
Parke Davis and Co LLC
Original Assignee
Parke Davis and Co LLC
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 Parke Davis and Co LLC filed Critical Parke Davis and Co LLC
Publication of GB984120A publication Critical patent/GB984120A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises compounds of the general formula <FORM:0984120/C2/1> (wherein R1 represents a chlorine atom or a methyl group and R2 a chlorine atom or a methyl or ethyl group, R2 being chlorine when R1 is methyl) and their salts, and the preparation thereof by condensing a benzoic acid derivatives of the general formula <FORM:0984120/C2/2> with a compound of the general formula <FORM:0984120/C2/3> (wherein Y and Z are different and represent -NH2 or a halogen atom and M represents hydrogen or a metal) or by hydrolysing (preferably under alkaline conditions) an N-acyldiphenylamine of the general formula <FORM:0984120/C2/4> (wherein Acyl represents an acyl radical, especially an optionally substituted benzoyl radical, and R represents a carboxyl group or a group hydrolysable thereto). N-Acyldiphenylamines of the last general formula above may be prepared as follows: (a) by reacting an anilide of the general formula <FORM:0984120/C2/5> (wherein R3 represents a tertiary alkyl group or an optionally substituted aryl radical) with phosphorus pentachloride to produce a benzimidoyl chloride of the general formula <FORM:0984120/C2/6> which is then reacted with an o-R4-phenol or alkali metal phenate (where R4 is a cyano, carboxy, alkoxycarbonyl, aryloxycarbonyl, aralkoxycarbonyl or carbamido group) to form an imido-ester of the general formula <FORM:0984120/C2/7> from which the desired compounds is formed by thermal rearrangement; (b) (when R = CN) by treating an N-acylaniline of the general formula <FORM:0984120/C2/8> with thionyl chloride to obtain an iminochloride of the general formula <FORM:0984120/C2/9> which with an alkali metal salt of a phenol of the general formula <FORM:0984120/C2/100> yields an imido-ester of the general formula <FORM:0984120/C2/111> from which again the desired compounds is obtained by thermal rearrangement; (c) (when R = COOH and neither R1 nor R2 is an oxidizable substituent) by oxidizing a compound of the general formula <FORM:0984120/C2/122> (wherein R6 represents a radical oxidizable to COOH and Ar an o-chlorophenyl group containing non-oxidizable R1 and R2 substituents); (d) (when R is a carboxylic halide group) by treating the corresponding acid (R = COOH) with a halogenating agent. 2 - Methyl - 3,6 - dichloroaniline is prepared by brominating 2-methyl-3-chloroacetanilide in the 4-position, chlorinating the product in the 6-position, and removing the bromine atom by catalytic hydrogenolysis and the acetyl group by acid hydrolysis. 2,6 - Dichloro - 3 - ethylaniline is prepared analogously from 3-ethylacetanilide, using two molecular proportions of chlorine in the chlorination step. Pharmaceutical preparations, having antiinflammatory activity and suitable for heating rheumatic symptoms, comprise the compounds of the first general formula above, or their salts (e.g. alkali and alkaline-earth metal, ammonium, choline and mono-, di- and tri-ethanolamine salts), together with a solid or liquid carrier or diluent. They are preferably in forms suitable for oral administration, e.g. tablets, capsules, powders, dragees, suspensions or solutions.
GB22726/61A 1961-01-12 1961-06-22 Anthranilic acid derivatives and methods for producing same Expired GB984120A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8218561A 1961-01-12 1961-01-12

Publications (1)

Publication Number Publication Date
GB984120A true GB984120A (en) 1965-02-24

Family

ID=22169584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22726/61A Expired GB984120A (en) 1961-01-12 1961-06-22 Anthranilic acid derivatives and methods for producing same

Country Status (8)

Country Link
BR (1) BR6130119D0 (en)
CH (2) CH405348A (en)
DE (1) DE1149015B (en)
DK (1) DK105594C (en)
ES (1) ES268522A1 (en)
FR (2) FR1457258A (en)
GB (1) GB984120A (en)
NL (2) NL266265A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301834A3 (en) * 1987-07-29 1990-01-10 IDB HOLDING S.p.A. Derivatives of benzoyloxyacetic acid, and preparation and formulations thereof for therapeutic use
WO2016049790A1 (en) * 2014-09-30 2016-04-07 Pontificia Universidad Catolica De Chile Method for producing pyrimido- or imidazo-quinoline-derived compounds from n-(2-cyanophenyl)benzimidoyl chloride with ethylenediamine or 1,3-diaminopropane

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1288123B1 (en) 1996-09-04 1998-09-10 Nicox Sa USE OF NITRO-DERIVATIVES FOR URINARY INCONTINENCE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301834A3 (en) * 1987-07-29 1990-01-10 IDB HOLDING S.p.A. Derivatives of benzoyloxyacetic acid, and preparation and formulations thereof for therapeutic use
WO2016049790A1 (en) * 2014-09-30 2016-04-07 Pontificia Universidad Catolica De Chile Method for producing pyrimido- or imidazo-quinoline-derived compounds from n-(2-cyanophenyl)benzimidoyl chloride with ethylenediamine or 1,3-diaminopropane

Also Published As

Publication number Publication date
ES268522A1 (en) 1962-04-16
DE1149015B (en) 1963-05-22
FR1383M (en) 1962-07-02
NL123122C (en)
CH401992A (en) 1965-11-15
DK105594C (en) 1966-10-17
NL266265A (en)
FR1457258A (en) 1966-01-24
CH405348A (en) 1966-01-15
BR6130119D0 (en) 1973-06-07

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