http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1103244-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-52 |
| filingDate | 1965-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1968-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1103244-A |
| titleOfInvention | Process for producing nitrodiarylamines |
| abstract | Nitrodiarylamines are obtained by heating a reaction mixture containing (a) a halogenated nitroaryl compound of formula <FORM:1103244/C2/1> wherein R is H or CH3 and X1 is Cl, Br or I; (b) an arylamine compound of the formula <FORM:1103244/C2/2> wherein X2 and X3 may be the same or different and are hydrogen or a methyl, ethyl, methoxy, ethoxy or nitro radical; (c) an amide which is the formic, acetic or propionic acid amide derivative of an arylamine compound of the said formula; (d) a dehydrohalogenation catalyst which is copper, copper oxide, nickel or a salt of either copper or nickel; and (e) a hydrogen halide acceptor in a reaction vessel under reduced pressure to condense the nitro aryl compound with the arylamine compound, distilling off water produced in the reaction, together with arylamine, dehydrating the arylamine and returning the dehydrated arylamine into the reaction mixture. The amide employed is preferably the amide of the specific arylamine being converted to nitrodiaryl amine and the reaction may be initiated by simultaneously charging all the required ingredients into the reaction vessel or by forming the amide derivative in situ and subsequently charging other necessary ingredients into the reaction vessel. The amount of amide employed is suitably 0.05 to 1 mole per mole of the halogenated nitroaryl compound and the reaction may be effected at 100-300 DEG C. under a pressure of 100-600 mm. Hg. The amount of arylamine recycled to the reaction mixture is suitably from 0.1-5 mol/hour per mol. of the halogenated nitroaryl compound. Specific examples describe the preparation of p-nitrodiphenylamine and p-methyl-p1-nitrodiphenylamine. |
| priorityDate | 1964-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.