http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-659529-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14f86e164bb6ab1032c519b42ff81a64 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B5-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-62 |
| filingDate | 1949-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1951-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-659529-A |
| titleOfInvention | Preparation of n,n-diaryl derivatives of perylene-3.4.9.10-tetracarboxylic acid diimid |
| abstract | Perylene 3, 4, 9, 10-tetracarboxylic acid-N,N1-diaryl diimides are made by heating the perylene tetracarboxylic acid or dianhydride thereof with an arylamine with water as diluent. The acids may be precipitated from aqueous solutions of their alkali salts either in presence of the amine, or not. The acid may be halogenated. The reaction may be effected in a closed vessel under pressure. Arylamines specified are aniline, p-anisidine, p-chloraniline, p-ethoxyaniline, dichloraniline, toluidine, p-ethyl aniline, sulphanilic acid, metanilic acid, a - and b -naphthylamines. In examples: (1) perylene - 3,4,9,10 - tetracarboxylic acid is precipitated from its solution in caustic potash by dilute acetic acid, containing p-anisidine, and the whole is heated under pressure; similar reactions (2) use p-chloraniline instead of p-anisidine; (3) use the monochlor derivative of the tetracarboxylic acid, instead of the unsubstituted acid; (4) heat the reactants under reflux; and (5) react p-anisidine with the dried tetracarboxylic acid and water under pressure. Also in examples: (6) perylene-3,4,9,10-tetracarboxylic acid is treated with chlorsulphonic acid, and the product heated with p-anisidine and water under pressure. Specification 201,786, [Class 2 (iii)], is referred to. |
| priorityDate | 1948-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.