| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9859087545365e2993ad10386e0ce4d7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_01b8a1db3cf1699540e4523d45d36a92 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-65 |
| filingDate |
1989-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8670d4f5bc23ed020866c8cb4a6ac8e8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_048a03c9780ac45c9c38b7685bed96d0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73b83d214a1452aa481c8b79f8a93335
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a30c3330fb8d1e5f0981ac26854603d2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d33e2ca8659f98b0a9c3e1444ad4e66f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc676f0f54e227226dbfb400a9f73e61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9cb9654195ec0fa6e021a2f4b96d2420
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1859a9aae9789791ddbd64164d6117a1 |
| publicationDate |
1991-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
SU-1671657-A1 |
| titleOfInvention |
Method for preparation of 2,6-difluorobenzamide |
| abstract |
The invention relates to amides, in particular the preparation of 2,6-difluorobenzamide, which can be used as a synthon for a high-octane insecticide of hormonal action — an inhibitor of chitin biosynthesis. The goal is to simplify the process and increase the yield of the target product. The preparation is carried out by metallization of difluorobenzene with sodium at (-40) - (-50) ° C in liquid ammonia in the presence of a catalyst - ferric chloride. The process is carried out with the subsequent reaction of the obtained sodium derivative with ethyl chlorotic acid ester at (-40) - (-50) ° C in diethyl ether. Yield up to 92%. The process time is reduced 6 times. |
| priorityDate |
1989-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |