http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1508067-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_16890954fa97fa1ea88523e23b283152 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B5-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-48 |
| filingDate | 1975-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1508067-A |
| titleOfInvention | Process for preparing indanthrene dyes |
| abstract | 1508067 Process for preparing indanthrene dyes PRODUITS CHIMIQUES UGINE KUHLMANN 20 June 1975 [21 June 1974] 26227/75 Heading C4P Vat dyes of the dianthraquinone-azine or dianthraquinone-N,N<SP>1</SP>-dihydroazine series, or a higher cyclic homologue thereof are prepared by reacting an optionally further substituted primary aminoanthraquinone or a higher cyclic homologue thereof with an alkaline condensing agent in presence of at least one N-oxide of an aliphatic or aromatic amine, N-oxide of a heterocyclic organic nitrogenous base, alkylphosphine oxide, arylphosphine oxide, alkylaminophosphine oxide, alkylarylaminophosphine oxide or arsine oxide. Preferred compounds include hexamethylphosphorotriamide, pyridine-N-oxide, quinoline- or isoquinoline-N-oxides, and dimethyl-aniline-N-oxide. The reaction preferably takes place in presence of an oxidizing agent e.g. air or oxygen, a solvent and a wetting agent at 50-140C. The preferred reactants are 1-amino-anthraquinone and sodium or potassium hydroxide. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102206425-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102206425-B |
| priorityDate | 1974-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.