GB973931A - New sulphonamides and the preparation thereof - Google Patents
New sulphonamides and the preparation thereofInfo
- Publication number
- GB973931A GB973931A GB9910/63A GB991063A GB973931A GB 973931 A GB973931 A GB 973931A GB 9910/63 A GB9910/63 A GB 9910/63A GB 991063 A GB991063 A GB 991063A GB 973931 A GB973931 A GB 973931A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thiadiazole
- amino
- halo
- preparation
- acylaminobenzenesulphonyl
- 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
- C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
- C07D285/01—Five-membered rings
- C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
- C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
- C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
- C07D285/125—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention comprises 3-methoxy- and 3-ethoxy-4-sulphanilamide-1, 2, 5-thiadiazole and their preparation by reacting a 3-halo-4-(mono or bis) [41-acylaminobenzenesulphonyl]-amino-1, 2, 5-thiadazole with an alkali-metal methoxide or ethoxide and heating the product with an aqueous alkali-metal hydroxide. 3-Halo-4-acylaminobenzenesulphonylamino-1, 2, 5-thiadazoles used as starting materials such as the 3-bromo- or chloro-4-(mono or bis) [41-carbethoxyaminobenzenesulphonyl]-amino-1, 2, 5-thiadiazole are made by halogenating 4-amino thiadiazole and treating the resulting 3-halo-4-amino-1, 2, 5-thiadiazole with a p-acylaminobenzenesulphonyl chloride. Specification 972,950 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT210862A AT233004B (en) | 1962-03-14 | 1962-03-14 | Process for the production of new sulfonamides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB973931A true GB973931A (en) | 1964-11-04 |
Family
ID=3527928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9910/63A Expired GB973931A (en) | 1962-03-14 | 1963-03-13 | New sulphonamides and the preparation thereof |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT233004B (en) |
| CH (1) | CH426851A (en) |
| GB (1) | GB973931A (en) |
| SE (1) | SE219931C1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2701632C2 (en) | 1977-01-17 | 1982-04-22 | Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München | Process for the preparation of pure 3-methoxy-4- (4-aminobenzenesulfonamido) -1,2,5-thiadiazole |
| AT383803B (en) * | 1985-11-11 | 1987-08-25 | Chemie Linz Ag | Process for the preparation of a novel crystal modification of 3-methoxy-4-(4'-aminobenzenesulphonamido)- 1,2,5-thiadiazole |
-
1962
- 1962-03-14 AT AT210862A patent/AT233004B/en active
-
1963
- 1963-02-01 CH CH127563A patent/CH426851A/en unknown
- 1963-03-13 GB GB9910/63A patent/GB973931A/en not_active Expired
- 1963-03-14 SE SE280763A patent/SE219931C1/sv unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH426851A (en) | 1966-12-31 |
| AT233004B (en) | 1964-04-25 |
| SE219931C1 (en) | 1968-04-09 |
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