GB448502A - Manufacture of 3-amino-quinolines - Google Patents

Manufacture of 3-amino-quinolines

Info

Publication number
GB448502A
GB448502A GB34189/34A GB3418934A GB448502A GB 448502 A GB448502 A GB 448502A GB 34189/34 A GB34189/34 A GB 34189/34A GB 3418934 A GB3418934 A GB 3418934A GB 448502 A GB448502 A GB 448502A
Authority
GB
United Kingdom
Prior art keywords
methyl
hydroxyquinoline
atmospheres
pressure
employed
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
GB34189/34A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB448502A publication Critical patent/GB448502A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K27/00—AC commutator motors or generators having mechanical commutator
    • H02K27/12—AC commutator motors or generators having mechanical commutator having multi-phase operation
    • H02K27/14—AC commutator motors or generators having mechanical commutator having multi-phase operation in series connection

Abstract

3-Aminoquinolines are obtained by heating under pressure with ammonia a 2-methyl-3-hydroxyquinoline, which may be substituted in the 4-position by carboxyl and in the 6-position by phenyl groups, if desired in the presence of ammonium sulphite. According to examples, 2-methyl-3-hydroxyquinoline, 2-methyl-3-hydroxyquinoline-4-carboxylic acid, and 2-methyl-3-hydroxy-6-phenylquinoline-4-carboxylic acid (obtainable by the process described in Specification 450,842) are heated with aqueous ammonia to give the corresponding 2 - methyl - 3 - aminoquinoline derivatives, the carboxylic groups being split off; in the first-mentioned example a temperature of 220--225 DEG C. is employed and the pressure rises to 75 atmospheres, but if ammonium sulphite is present a temperature of 180 DEG C. and a pressure of 40 atmospheres are employed; in the second-mentioned example, if anhydrous ammonia is employed at a temperature of 200 DEG C. the pressure rises to 173 atmospheres. A sample has been furnished under Sect. 2 (5) of 2-phenyl-3-aminoquinoline obtained by heating 2-phenyl-3-hydroxyquinoline at 200--210 DEG C. for 25 hours with concentrated ammonia, the pressure rising to 60 atmospheres.
GB34189/34A 1933-12-15 1934-11-28 Manufacture of 3-amino-quinolines Expired GB448502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE448502X 1911-09-22

Publications (1)

Publication Number Publication Date
GB448502A true GB448502A (en) 1936-05-28

Family

ID=6538144

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34189/34A Expired GB448502A (en) 1933-12-15 1934-11-28 Manufacture of 3-amino-quinolines

Country Status (2)

Country Link
FR (1) FR448502A (en)
GB (1) GB448502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593798A (en) * 1947-05-22 1952-04-22 Searle & Co Aminoalkylamino isoquinoline compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593798A (en) * 1947-05-22 1952-04-22 Searle & Co Aminoalkylamino isoquinoline compounds

Also Published As

Publication number Publication date
FR448502A (en) 1913-02-03

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