GB598472A - Manufacture of para-aminobenzene sulphonacylamides - Google Patents
Manufacture of para-aminobenzene sulphonacylamidesInfo
- Publication number
- GB598472A GB598472A GB21582/44A GB2158244A GB598472A GB 598472 A GB598472 A GB 598472A GB 21582/44 A GB21582/44 A GB 21582/44A GB 2158244 A GB2158244 A GB 2158244A GB 598472 A GB598472 A GB 598472A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carboxylic acid
- aminobenzene
- dimethyl
- para
- sulphon
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
- C07D213/82—Amides; Imides in position 3
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
- C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
- C07D261/06—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members
- C07D261/10—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D261/14—Nitrogen atoms
- C07D261/16—Benzene-sulfonamido isoxazoles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Para-aminobenzene sulphonacylamides of the general formula <FORM:0598472/IV/1> where R1 is a heterocyclic residue containing as substituents halogen, an alkyl residue, and/or an alkoxy alkylthio-residue, R2 represents hydrogen, alkyl or aralkyl and R3 represents hydrogen or alkyl are made by treating a sulphonamide of the benzene series, containing in the para position an amino group or a group which may be converted into an amino group by hydrolysis or reduction, with a carboxylic acid of the formula R1-COOH or with a functional derivative of such an acid. In a modified process, a benzene sulpho-halide substituted in the para position with a group containing nitrogen and which is convertible by reduction or hydrolysis to an amino group, is reacted with a salt of an acid amide of the general formula R1-CO.NH2, where R1 has the meaning previously ascribed to it, giving the desired type of product. Suitable sulphonamides are those mentioned in the parent Specification and also the ureides, urethanes and amino alkylene sulphonic acids. Specified heterocyclic carboxylic acids are 2 : 5-dimethylpyrrole-3-carboxylic acid, 2 : 5-dimethylfurane-3-carboxylic acid, 5-tertiary-butyl-furane-2-carboxylic acid, 2 - methylfurane - 5 - carboxylic acid, 2 : 4 - dimethylfurane - 3 - carboxylic acid, 3-methyl-pyrazole-5-carboxylic acid, 5-methyl-isoxazole-3-carboxylic acid, 3-methylisoxazole-5-carboxylic acid, 3 : 5 - dimethylisoxazole-4-carboxylic acid, 4-methyl-thiazole-5-carboxylic acid, 2 - chloro - 4 - methylthiazole - 5 - carboxylic acid, 2 : 4 - dimethylthiazole - 5 - carboxylic acid, 6 - chloro - pyridine - 3 - carboxylic acid, 2 : 4 - dimethylpyridine-3-carboxylic acid, 6-methoxypyridine-3-carboxylic acid, 6-methylmercaptopyridine-3-carboxylic acid, 1 - ethyl - pyridone-(6)-3-carboxylic acid, 1-isobutylpyridone-(6)-3-carboxylic acid, 6 - methoxy - 2 : 4 - dimethylpyridine - 3 - carboxylic acid, 6-ethyl mercapto-2 : 4 - dimethyl - pyridine - 3 - carboxylic acid, 5 - methyl - pyrimidine - 4 - carboxylic acid, 5 - methylthiodiazole-(1 : 2 : 3)-4-carboxylic acid, 4 : 6 - dimethyl - pyrimidine - 2 - carboxylic acid, 3 : 6 - dimethyl - pyridazine - 4 - carboxylic acid, 3-methyl-oxdiazole-(1 : 2 : 4)-5-carboxylic acid, 2 - ethyl - pyrimidine - 4 - carboxylic acid, 5 : 6-dimethylpyrazine-3-carboxylic acid, 1-methylpyrrolidine-2-carboxylic acid, 2-methyl-benzthiazole - 7 - carboxylic acid, 5 - ethylthiodiazole-(1 : 3 : 4)-2-carboxylic acid, 2-methylpyridine-3-carboxylic acid, 2-methylpyridine-3-acetic acid, 2 : 6-dimethyl-4-chlorpyridine-3-carboxylic acid and 4 : 5 - dimethylpyridine - 3 - carboxylic acid. These are made as described in the literature. In examples: (I) para-aminobenzene-sulphon-3 : 5-dimethylisoxazole-4-carboxylic acid is prepared by the reaction of sodium para-nitrobenzene sulphonamide with 3 : 5-dimethylisoxazole-4-carboxylic acid chloride followed by reduction of the nitro group in an analogous manner; (II) 4-aminobenzene-sulphon-21 : 61-dimethyl-41-chloropyridine-31-carboxylic acid amide is prepared from 2 : 6-dimethyl-4-chloropyridine-3-carboxylic acid chloride and 4-acetylaminobenzene sulphonamide. 4-Ureido-aminobenzene - sulphon - 21 : 61 - dimethyl - 41 - chloropyridine-31-carboxylic acid amide and sodium benzene - sulphon - 21 : 61 - dimethyl - 41 - chlorpyridine-31-carboxylic acid amide 4-aminomethane sulphonate can be obtained in a similar manner; (III) 4-aminobenzene-sulphon-11-ethylpyridone-(61) -carboxylic acid amide is prepared from para-acetylaminobenzene sulphonamide and 1-ethylpyridone-(6)-3-carboxylic acid; (IV) 4 - aminobenzene - sulphon - 21 : 41 - dimethylcoumalic acid amide is prepared from 4-carbethoxy-aminobenzene sulphonamide and 2 : 4-dimethyl coumalic acid chloride; (V) 4-aminobenzene - sulphon - 51 - methylpyrimidine - (41)-carboxylic acid amide is prepared from para-nitrobenzene-sulphochloride and 5-methylpyrimidine-(4)-carboxylic acid amide; (VI) 4-aminobenzene-sulphon-21-61-dimethyl-41 -ethoxypyridine-31-carboxylic acid amide is prepared from 2 : 6-dimethyl-4-ethoxypyridine-3-carboxylic acid chloride and para nitrobenzene sulphonamide; (VII) 4-aminobenzene-sulphon-51 - tertiary - butylfurane - 21 - carboxylic acid is prepared from 5-tertiary-butylfurance-2-carboxylic acid chloride and para-nitrobenzene sulphonamide. Specification 578,564 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH598472X | 1943-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB598472A true GB598472A (en) | 1948-02-19 |
Family
ID=4522596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21582/44A Expired GB598472A (en) | 1943-11-05 | 1944-11-03 | Manufacture of para-aminobenzene sulphonacylamides |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB598472A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3065225A (en) * | 1960-02-05 | 1962-11-20 | Hoffmann La Roche | N', n4-di-isoxazolylcarbonyl-sulfanilamide derivatives |
WO2008147797A3 (en) * | 2007-05-25 | 2009-07-09 | Vertex Pharma | Ion channel modulators and methods of use |
-
1944
- 1944-11-03 GB GB21582/44A patent/GB598472A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3065225A (en) * | 1960-02-05 | 1962-11-20 | Hoffmann La Roche | N', n4-di-isoxazolylcarbonyl-sulfanilamide derivatives |
WO2008147797A3 (en) * | 2007-05-25 | 2009-07-09 | Vertex Pharma | Ion channel modulators and methods of use |
US8193194B2 (en) | 2007-05-25 | 2012-06-05 | Vertex Pharmaceuticals Incorporated | Ion channel modulators and methods of use |
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