http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1532812-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-503 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-51 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-503 |
| filingDate | 1976-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1532812-A |
| titleOfInvention | Process for the manufacture of anthraquinone compounds |
| abstract | 1532812 Preparing hydroxy aminoanthraquinones IMPERIAL CHEMICAL INDUSTRIES Ltd 1 April 1976 [24 April 1975] 17058/75 Heading C4P Hydroxy aminoanthraquinones having the general formula wherein R is H or an optionally substituted alkyl, cycloalkyl or aryl radical are prepared by reacting 1,4,5-trihydroxy-8-aminoanthraquinones with at least 2 moles of a compound R-NH 2 per mole of the anthraquinone compound in presence of boric acid or a boric acid ester B(OX) 3 where X is C 1 -C 4 alkyl or optionally substituted phenyl and a phenol, the reaction taking place at 50‹ C. to the boiling point of the reaction mixture. Preferably 4-10 moles of RNH 2 or mixtures thereof are used and the boric acid or ester is used in amounts of 45-130% by weight of the anthraquinone starting material. The phenols include cresols and xylenols. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2130596-A |
| priorityDate | 1976-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.