GB582149A - Manufacture of 6-(para-aminobenzenesulphonamido)-2:4-dimethylpyrimidine - Google Patents
Manufacture of 6-(para-aminobenzenesulphonamido)-2:4-dimethylpyrimidineInfo
- Publication number
- GB582149A GB582149A GB3275/44A GB327544A GB582149A GB 582149 A GB582149 A GB 582149A GB 3275/44 A GB3275/44 A GB 3275/44A GB 327544 A GB327544 A GB 327544A GB 582149 A GB582149 A GB 582149A
- Authority
- GB
- United Kingdom
- Prior art keywords
- group
- amino
- aminobenzenesulphonamido
- dimethylpyrimidine
- pyrimidine
- 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
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three 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, directly attached to ring carbon atoms
- C07D239/69—Benzenesulfonamido-pyrimidines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
6 - (p - Aminobenzenesulphonamido) - 2 : 4 - di - methyl pyrimidine is prepared from a benzene sulphonic acid halide substituted in the paraposition by a group convertible to an amino group by hydrolysis or reduction and 6-amino-2 : 4-dimethyl pyrimidine, characterised in that at least two molecules of the pyrimidine compound are used for each molecule of the sulphonyl halide. It is stated that by using the reagents in the above proportions, a much higher yield is obtained than if the reagents are used in theoretical proportions. Groups mentioned which may be converted into an amino group by hydrolysis or reduction include the acetylamino group, the nitro group and the azo group. The reaction is preferably carried out in the presence of a diluent such as dioxane or pyridine. In examples, two molecules of 6 - amino - 2 : 4 - dimethylpyrimidine is reacted with in example (1) one mol. of p-nitro-benzene-sulpho-chloride and in example (2) one mol. of p-acetylaminobenzene sulphochloride. Specification 553,205 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH582149X | 1943-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB582149A true GB582149A (en) | 1946-11-06 |
Family
ID=4521576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3275/44A Expired GB582149A (en) | 1943-11-04 | 1944-02-22 | Manufacture of 6-(para-aminobenzenesulphonamido)-2:4-dimethylpyrimidine |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE456543A (en) |
| CH (1) | CH242053A (en) |
| FR (1) | FR905573A (en) |
| GB (1) | GB582149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2773061A (en) * | 1949-06-15 | 1956-12-04 | Loop Werner | Process of making 4-(p-aminobenzenesulphonyl) amino-pyrimidines |
-
0
- BE BE456543D patent/BE456543A/xx unknown
-
1943
- 1943-11-04 CH CH242053D patent/CH242053A/en unknown
-
1944
- 1944-02-22 GB GB3275/44A patent/GB582149A/en not_active Expired
- 1944-06-30 FR FR905573D patent/FR905573A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2773061A (en) * | 1949-06-15 | 1956-12-04 | Loop Werner | Process of making 4-(p-aminobenzenesulphonyl) amino-pyrimidines |
Also Published As
| Publication number | Publication date |
|---|---|
| FR905573A (en) | 1945-12-07 |
| BE456543A (en) | |
| CH242053A (en) | 1946-04-15 |
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