http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H05286903-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f8cfa5aee4410611b5c562275c9f8e3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-716 |
| filingDate | 1992-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acfc2ab3e36a2db166909f03fbe4c858 |
| publicationDate | 1993-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H05286903-A |
| titleOfInvention | Method for producing γ-chloroacetoacetic acid ester |
| abstract | (57) [Summary] [Objective] Highly pure γ-chloroacetoacetic acid ester can be obtained in high yield from γ-chloroacetoacetic acid chloride and alcohol by a simple operation. [Structure] A mixed solution containing γ-chloroacetoacetic acid chloride obtained by reacting diketene and chlorine in a hydrocarbon solvent is heated at a temperature of 20 to 90 ° C. and a reduced pressure of 200 to 750 To. Under the condition of rr, while distilling off the solvent, alcohols such as methanol are sequentially added and reacted. As the solvent, for example, benzene or a mixed solvent of benzene and hexane is used. By using the solvent, side reactions and the like caused by by-product hydrogen chloride are significantly suppressed. |
| priorityDate | 1992-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.