GB814276A - 3-sulphanilamido-5-methylisoxazole and a process for its preparation - Google Patents
3-sulphanilamido-5-methylisoxazole and a process for its preparationInfo
- Publication number
- GB814276A GB814276A GB27293/57A GB2729357A GB814276A GB 814276 A GB814276 A GB 814276A GB 27293/57 A GB27293/57 A GB 27293/57A GB 2729357 A GB2729357 A GB 2729357A GB 814276 A GB814276 A GB 814276A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methylisoxazole
- group
- amino
- sulphanilamido
- substituent
- 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
- 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
- C07D261/18—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
Abstract
The invention comprises 3-sulphanilamido-5-methyl-isoxazole and its preparation by condensing 3-amino-5-methylisoxazole with a p-aminobenzenesulphonyl halide or ester, or with a benzenesulphonyl halide or ester p-substituted by a group convertible to an amino group by reduction or hydrolysis and subsequently so converting the p-substituent. Suitably the p-substituent may be an acylamino or carbalkoxyamino group which is converted by hydrolysis, or a nitro group which is converted by reduction. The condensation is preferably carried out in an inert solvent or in a basic or basified solvent such as pyridine, picoline or acetone-sodium bicarbonate. In an example acetyl-sulphanilyl chloride is condensed with 3-amino-5-methylisoxazole and the resulting 3 - acetylsulphanilamido - 5 - methylisoxazole is saponified with aqueous sodium hydroxide to 3-sulphanilamido-5-methylisoxazole. 3-Amino-5-methylisoxazole is made by hydrolysing ethyl (or benzyl) 5-methylisoxazole-3-carbamate. Specification 595,775, [Group IV], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP814276X | 1956-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB814276A true GB814276A (en) | 1959-06-03 |
Family
ID=13746051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27293/57A Expired GB814276A (en) | 1956-09-04 | 1957-08-29 | 3-sulphanilamido-5-methylisoxazole and a process for its preparation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB814276A (en) |
-
1957
- 1957-08-29 GB GB27293/57A patent/GB814276A/en not_active Expired
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