http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9636590-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_36089addd8e49e968b4c7e13c517dd1c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-18 |
| filingDate | 1996-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_274ebdcf0eac1a64052631667c65f6da http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0290f8648e3074d507bb4b44e0095f06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c573d7c003cde15db3c5359d8fd7957 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9fa22f1949fe77f34aac99b4e710eb13 |
| publicationDate | 1996-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9636590-A1 |
| titleOfInvention | Process for the preparation of 5-amino-2,4,6-triiodoisophthalic acid dichloride by chlorination with thionyl chloride in the presence of a catalyst |
| abstract | A process for the preparation of 5-amino-2,4,6-triiodoisophthalic acid dichloride by chlorination of 5-amino-2,4,6-triiodoisophthalic acid with thionyl chloride in the presence of a suitable solvent characterized in that the reaction is carried out in the presence of catalytic amounts of a tetraalkylammonium salt of the formula (I): R1R2R3R4NX wherein X is halogen, mesylate or tosylate; R1, R2, R3 and R4, the same or different, are C1-C20 alkyl groups so that the total number of carbon atoms of the groups R1, R2, R3 and R4 is higher than 16. The 5-amino-2,4,6-triiodoisophthalic acid dichloride obtained according to the process of the present invention is useful as intermediate in the synthesis of iodinated contrast media. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014090650-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10738000-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9963416-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10246400-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9926257-B2 |
| priorityDate | 1995-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 110.