http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19624418-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-30 |
| filingDate | 1996-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cce1e89a7663e97bd0c796ed141bb8e4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80f73c1206005cdb1df13fe1222915b2 |
| publicationDate | 1997-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-19624418-A1 |
| titleOfInvention | Process for the preparation of 4,5,6-trichloro- and 2,4,5,6-tetrachloropyrimidine |
| abstract | The invention concerns a method of preparing 4,5,6-trichloro- and 2,4,5,6-tetrachloropyrimidine by reacting 3-dimethylaminopropionitrile with HC1 and Cl2, the method comprising a) a first step in which 3-dimethylaminopropionitrile is reacted with Cl2 in a solvent at a temperature of -10 to 55 DEG C and b) a second step in which the reaction mixture obtained in the first step is reacted, at a temperature of over 55 DEG C, with Cl2, optionally in the presence of a catalyst. The method is characterized in that the second step takes place with the product of the reaction in the first step in microcrystalline form with a mean crystal size of </= 10 mu m. |
| priorityDate | 1996-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.