http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3991105-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2d7d336467720016323f1554a22288b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C233-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-12 |
| filingDate | 1974-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1976-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d210653def1a58293892b30559892c5b |
| publicationDate | 1976-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3991105-A |
| titleOfInvention | Process for the preparation of 3-acetamido-5-amino-2,4,6-triiodobenzoic acid |
| abstract | The invention provides a process for the preparation of 3-acetamido-5-amino-2,4,6-triiodobenzoic acid substantially free from diiodinated material, in which 3-acetamido-5-aminobenzoic acid or a salt thereof is gradually introduced into an aqueous acid system which contains an excess of iodine chloride (ICl) in a stabilized form. In particular, the gradual introduction of 3-acetamido-5-aminobenzoic acid may be achieved by using 3,5-diacetamidobenzoic acid as starting material, the acid medium effecting hydrolysis of one acetamido group and the excess iodinating reagent reacting selectively at such a rapid rate that the desired triiodinated product is formed and precipitated without further hydrolysis or premature precipitation of unwanted diiodinated products. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007219396-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6274762-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100545146-C http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7378546-B2 |
| priorityDate | 1973-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.