GB496690A - The manufacture of substitution products of cyclic amidines - Google Patents
The manufacture of substitution products of cyclic amidinesInfo
- Publication number
- GB496690A GB496690A GB1954737A GB1954737A GB496690A GB 496690 A GB496690 A GB 496690A GB 1954737 A GB1954737 A GB 1954737A GB 1954737 A GB1954737 A GB 1954737A GB 496690 A GB496690 A GB 496690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melamine
- yield
- hydrochloride yield
- aniline
- substitution products
- 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
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Cyclic amidines, i.e. compounds containing one or more groups -N : C(NH2)- within a ring system, are converted into N-substitution products by heating them with other primary or secondary amino compounds, one of the reagents being taken as a mineral-acid salt. Examples are given in which (1) melamine and methylamine hydrochloride yield N : N1-dimethylmelamine, with some trimethylmelamine; (2) melamine and dimethylamine hydrochloride yield N-dimethylmelamine, with some N : N1-di(dimethyl)melamine; (3) melamine and octadecylamine hydrochloride yield N-octadecylmelamine and N : N1-dioctadecylmelamine; (4) melamine and aniline hydrochloride yield sym. triphenylmelamine; (5) melamine monohydrochloride and aniline yield, mainly, triphenylisomelamine; (6) phenylguanazole monohydrochloride and aniline yield N-phenylphenylguanazole, with some N : N1-diphenylphenylguanazole; (7) 2 : 4-diaminoquinazoline and butylamine hydrochloride yield 2 : 4 - di(butylamino)quinazoline; (8) 2 : 4 : 6-triaminopyrimidine and methylamine hydrochloride yield 2 : 4 : 6 - tri(methylamino)pyrimidine. The treatment of diaminopyrimidines and amines of the pyrrodiazole series is mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1954737A GB496690A (en) | 1937-07-14 | 1937-07-14 | The manufacture of substitution products of cyclic amidines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1954737A GB496690A (en) | 1937-07-14 | 1937-07-14 | The manufacture of substitution products of cyclic amidines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB496690A true GB496690A (en) | 1938-12-05 |
Family
ID=10131198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1954737A Expired GB496690A (en) | 1937-07-14 | 1937-07-14 | The manufacture of substitution products of cyclic amidines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB496690A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6878824B2 (en) | 2003-03-19 | 2005-04-12 | Nissan Chemical Industries, Ltd. | Process for preparing N-methylated melamines |
| JP4605328B2 (en) * | 1998-09-17 | 2011-01-05 | 日産化学工業株式会社 | Process for producing alkylene bismelamine |
-
1937
- 1937-07-14 GB GB1954737A patent/GB496690A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4605328B2 (en) * | 1998-09-17 | 2011-01-05 | 日産化学工業株式会社 | Process for producing alkylene bismelamine |
| US6878824B2 (en) | 2003-03-19 | 2005-04-12 | Nissan Chemical Industries, Ltd. | Process for preparing N-methylated melamines |
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