http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109608335-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9ca426d149d397398204121ae8f157dd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_071b19d099271e9a474a638b297cf008 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-708 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-708 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-31 |
| filingDate | 2019-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e267d99cd7fe5026e8473ba81f4a132 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c2f9bd3d5dbab82414afa7ac907829c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_452a9d15455f09b89abc6a59123ca29d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd3547afb106658e5662cdf9e323aa81 |
| publicationDate | 2019-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109608335-A |
| titleOfInvention | A kind of preparation method of 3- tert-butoxy propanoic acid tert-butyl ester |
| abstract | The present invention relates to a kind of preparation methods of 3- tert-butoxy propanoic acid tert-butyl ester, the following steps are included: tert-butyl acrylate and the tert-butyl alcohol is first added, it is heated to desired reaction temperature, catalyst solution is added dropwise, after being reacted to the 3- tert-butoxy propanoic acid tert-butyl ester conversion ratio of requirement, cooling, acidic materials are added to neutralize, the de- tert-butyl alcohol to its concentration is evaporated in vacuo and reaches requirement, cooling is added alkaline substance solution and neutralizes to neutrality, stands, layering, water-yielding stratum is separated, heating, vacuum distillation abjection light component to distillate reaches requirement, collects product.The present invention relates to suitable reaction temperature, catalyst and its rate of addition has been selected in a kind of preparation process of 3- tert-butoxy propanoic acid tert-butyl ester, vacuum degree and temperature are distilled, product is made to have obtained optimal yield. |
| priorityDate | 2019-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.