http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-808767-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5528d8d64c9da539b3fa8028a22bede6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-54 |
| filingDate | 1955-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1959-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-808767-A |
| titleOfInvention | Method of preparing n,n-disubstituted formamidines |
| abstract | Poly-N:N1-disubstituted formamidines are made by reacting a poly primary amine with 1:3:5-triazine. The reaction may be effected by mixing the reactants at room temperature and heating if necessary. Ammonia is evolved. An inert solvent or diluent such as heptane, petroleum ether, benzene, toluene, xylene, chlorobenzene, trichloroethylene, tetrachloroethylene, chloroform or carbon tetrachloride may be used. Polyamines mentioned are 1:4-diamino-butane, 1:4-diamino-cyclohexane, and p-phenylene diamine. The chain length of the polymer is controlled by adding a small amount of a monoamine; cross linking is effected by adding polyamines containing greater numbers of amino groups.ALSO:N : N1-disubstituted formamidines of the formula: R-NH-CH=N-R where R is a substituted or unsubstituted hydrocarbon radical, the substituents being non-functional in the reaction, or a heterocyclic radical in which the hetero-atoms do not interfere with the reaction and any substituents of which are non-functional in the reaction, are made by reacting a primary amine of the formula R-NH2 with 1 : 3 : 5-triazine. The reaction occurs on mixing the reactants at room temperature or on heating, and ammonia is evolved. Inert solvents or diluents may be used, such as heptane, petroleum ether, benzene, toluene, xylene, chlorbenzene, trichloroethylene, tetrachloroethylene, chloroform and carbon tetrachloride. Primary amines which are mentioned and which may contain substituents such as halogen atoms, or nitro, carbonyl, amido, carboxylic ester, secondary and tertiary amino, ether, and thioether groups are methyl-, ethyl-, isopropyl-, sec-butyl-, n-butyl-, n-heptyl-, n-dodecyl-, benzyl-, cyclohexyl-, and a - and b -naphthyl-amines, aniline, the toluidines and xylidines, 2-amino-pyridine, amido-thiazole, o-chloro aniline, amino-acetone, amino-acetophenone, ethyl alanine, p-nitraniline, ethoxyethyl amine, m-anisidine, amino-ethyl 2 : 4 : 5 - trichlorophenoxy - acetate, aminoethylthioethane, p - amino - acetanilide, 1 - amino - 4 - ethylamino - butane, 1 - amino - 4 - (ethylmethyl) - amino - butane, and amino-ethyl-methyl-aniline. Examples describe the preparation of N : N1-diphenyl-, dibenzyl-, dicyclohexyl-, di-n-butyl-, di-n-heptyl-, and di-n-dodecyl-formamidines. |
| priorityDate | 1954-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.