http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2643636-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f76aab74ed312003383a8600e2edbd5b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D315-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D309-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D315-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1990-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9113ee7c22f7ea687fd744d4e22f029 |
| publicationDate | 1990-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2643636-A1 |
| titleOfInvention | PROCESS FOR THE PREPARATION OF SUBSTITUTED LACTONES (ALPHA) -ALKYLIDENE FROM SUBSTITUTED LACTONES (ALPHA) -ACETYL |
| abstract | The present invention relates to a process for preparing alpha-alkylidene-substituted lactones from alpha-acetyl-substituted lactones. The process according to the invention comprises the reaction of substantially equimolar quantities of an alpha-acyl-lactone, of an aldehyde of formula R'CHO in which R 'is hydrogen or a hydrocarbon radical having from 1 to 20 carbon atoms. carbon, and an alkali metal hydroxide, at a temperature in the range of 50 degree (s) C to 150 degree (s) C in an inert solvent with removal of the water of reaction. The process is intended for the preparation of alpha-alkylidene-gamma-butyrolactones and alpha-alkylidene-delta-valerolactones. |
| priorityDate | 1989-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 100.