http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02230-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e9445e5e3626f36e932c6451a928250 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-24 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C205-47 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-236 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-47 |
| filingDate | 1988-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1270b3eec034cfc3366a22ff0622a54f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b3b7df4241ef644425c9b611b747ebe |
| publicationDate | 1990-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02230-A |
| titleOfInvention | Preparation of 1-nitroanthraquinone |
| abstract | PURPOSE: To obtain 1-nitroanthraquinone of high purity, important as a dye intermediate in a high yield by subjecting 1-nitro-tetrahydroanthraquinone obtained by reacting 5-nitro-1,4-naphthoquinone with butadiene in a two-stage oxidation reaction. n CONSTITUTION: 1-nitro-5,8,11,12-tetrahydroanthraquinone obtained by reacting 5-nitro-1,4-naphthoquinone with butadiene is oxidized to 1-nitro-5,8- dihydroanthraquinone at a temp. of 5-100°C by using oxygen, an inorg. peroxide compd. (e.g.; perborate, persulfate) or metal oxide (suitably, manganese dioxide) as an oxidizing agent and this intermediate is oxidized at temp. slightly higher than the above mentioned reaction temp., pref., at a temp. of 20-160°C by using one of the above mentioned oxidizing agents to obtain 1-nitroanthraquinone. It is pref. to further subject this product to post-treatment by an acid (suitably, nitric acid) having oxidizing action. n COPYRIGHT: (C)1990,JPO |
| priorityDate | 1987-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.