http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S60228457-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d93502a23a72b56472bc75854cfe7c60 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-08 |
| filingDate | 1984-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7d56b3882a3df3514f9a1b8a53578f3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_deb84220cc38674220cf186656cda161 |
| publicationDate | 1985-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S60228457-A |
| titleOfInvention | Method of purification of 4-hydroxyindole |
| abstract | PURPOSE: To obtain the titled compound useful as a remedy for circulatory organs, etc. simply in high yield in high purity, by reacting a crude 4-hydroxyindole with a base to form a base, extracting it in water, hydrolyzing optionally with an acid, removing an impurity. n CONSTITUTION: A 4-oxotetrahydroindole (4-OI for short) [e.g., compound shown by the formula I (R 1 WR 6 are H, or hydrocarbon residue) or compound shown by the formula II] is removed from a crude 4-hydroxyindole (4-HI for short) containing 4-OI as an impurity. In the operation, the crude 4-HI is reacted with a base (e.g., NaOH, KOH, etc.) to form a salt of 4-HI, etc., the salt extracted in water, and the salt is optionally hydrolyzed with an acid (e.g., HCl, H 2 SO 4 , etc.), so that 4-HI is purified. n COPYRIGHT: (C)1985,JPO&Japio |
| priorityDate | 1984-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.