http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2046739-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e9445e5e3626f36e932c6451a928250 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B5-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D221-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D221-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-14 |
| filingDate | 1980-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1980-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2046739-A |
| titleOfInvention | Process for Producing Anthraquinone Intermediates |
| abstract | A process for producing anthraquinone intermediates of the formula <IMAGE> wherein X is hydrogen or a nonionic substituent, Y is a halogen atom having the atomic number 17 to 53 inclusive, and Z is an alkyl group (C1- C4), by acylating an anthraquinone compound of the formula <IMAGE> with a benzylic acid halide of the formula <IMAGE> wherein X, Y and Z have the given meanings, and "Hal" is a halogen atom; and subsequently cyclising the condensation product either by reacting the anthraquinone compound with a benzylic acid halide in an organic, water-miscible solvent under vacuum conditions, and subsequently cyclising the condensation product at a temperature above 70 DEG C in the presence of a base; or by reacting the anthraquinone compound with a benzylic acid halide in an organic, water-immiscible solvent under vacuum conditions, and subsequently cyclising the condensation product at a temperature of above 80 DEG C in the presence of a base and of a phase- transfer catalyst. |
| priorityDate | 1979-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 81.