| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8f9b9f270693b50fa6d2c5358d55ea7d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N25-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C13-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23B7-152
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-26 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23B7-152
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01P21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C13-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N25-02 |
| filingDate |
2017-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de94099a3cd2e217837e2ca3c62d4a6e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46a5896c4ffd5cba724f9162f523a8b3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_532742146270d3eaca58526c51a11595
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65faf92eab6e98fd2322bd6b54e8ca14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b90270f830c332bd0b34c3badcc3382 |
| publicationDate |
2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2667511-C1 |
| titleOfInvention |
Process for the preparation of 1-methylcyclopropene |
| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to process for preparation of 1-methylcyclopropene by reacting a metallyl chloride (3-chloro-2-methylpropene) or a metallyl bromide (3-bromo-2-methylpropene) with bases in a polar aprotic organic solvent medium, and the yield of the desired product is increased to 46.2 %, and the content of methylene-cyclopropane without the low-temperature rectification stage is reduced to 0.025 %. Process is characterized in that the process is carried out in the presence of quaternary ammonium salts in an amount of 0.01 to 0.5 mole fractions of the base content in the presence of an olefin of an ethylene series or mixtures thereof in an amount of 0.01 to 0.50 mole fractions of the content metallyl chloride or metallyl bromide. n EFFECT: yield of the target product increases, content of methylene-cyclopropane harmful for further processing into a commercial preparation decreases. n 1 cl, 2 tbl, 2 ex |
| priorityDate |
2017-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |