http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5455515-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0bd433e19d43c4d9b2a68ed8443b9a9a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-20 |
| filingDate | 1977-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14a8bf10d4291542785c5e76251d5f49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b53434b65dff1c3d52a55965479c893 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78ec2752a31001a78ee780e91769c8ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_edc48f370faea068ef11c36e0000f2a1 |
| publicationDate | 1979-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5455515-A |
| titleOfInvention | Preparation of dialkyl malonates |
| abstract | PURPOSE:To prepare symmetiric dialkyl malonates in high yields industrially in one stage, by reacting bromochloromethane with CO, and alcohols in the presence of a cobalt carbonyl and a basic substance. CONSTITUTION:One mole of bromochloromethane (B) of formula I is reacted with 3-6 moles of CO (C) and 3-10 moles of lower alcohols (A), e.g. methanol, ethanol, etc. in the presence of 1/5-1/100 mole, preferably 1/10-1/20 mole, of a cobalt carbonyl of formula II and a basic substance, e.g. a carbonate, bicarbonate, acetate, etc. of an alkali or alkaline earth metal, in an enclosed system at 10-100 deg.C and 20-60 atm under pressure to give dialkyl malonates of formula III: (R is alkyl group). The molar ratios of (B):(C):(A) are preferably 1:4: 5-10. |
| priorityDate | 1977-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.