http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4227445-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B5-2481 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-24 |
| filingDate | 1992-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7d9598ddec5368aa97e1dae28305354 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c1d8d694f55ea6604560a0984bb2fa4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1a4a56067d00119363b44125b75cf1b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_caa135b702509b8fa806432d1562343e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_168d37ad2515ccc4876f056ce15d5da2 |
| publicationDate | 1993-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-4227445-A1 |
| titleOfInvention | METHOD FOR PRODUCING ANTHRACHINONE DYES |
| abstract | The process concerns the prodn. of an anthraquinone dyestuff, which is a 2-alkyl-l-oxo-3-imino-4,7 -diamino-5,6-phthaloylisoindoline (2-alkyl-4,11-diamino-3-imino -1,5,10-trioxo-1,3,5,10 -tetrahydro-2H-naphth-(2,3)f isoindole) cpd. of the formula (I). In (I), R = an (un)satd. alkyl, alkoxyalkyl, cycloakyl, aryloxyalkyl, aralkyl, aralyloxyalkyl, hydroxyalkyl, alkoxyalkoxyalkyl or furfuryl; by alklating 1-oxo-3-imino-4,7-diamino -5,6-phthoxylisoindoline (II) with an alkylatng agent (III). The novel features are that (a) alkylation is carried out in an inert solvent (IV) in the presence of acid-binding agent (V); (b) (III) is an alkyl halide R-X (IIIA), a sulphate R-OSO3H (IIIB) or R-OSO3R (IIIC), a phosphate O=P(OR)3 (IIID) or an organic sulphonate A-SO (IIIE) where X = Cl, Br or I; A = phenyl or tolyl; and (c) a phase transfer catalyst (VI) is used with (IIIA), (IIID) or (IIIC). There is no reference to the prepn. of (II). USE/ADVANTAGE - (I) with good quality can be produced in high yield on the industrial scale. They are suitable for dyeing synthetic fibres, esp. polyester fibres, in brilliant greenish-blue hues. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4414693-A1 |
| priorityDate | 1991-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 212.