http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S56169647-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-716 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 |
| filingDate | 1980-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aaadf6b186fad368f97b74927328960b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c798cd27cc42dc59a82e1c75a1231f7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1a3592fbc3e5722f4f4018986c457cf |
| publicationDate | 1981-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S56169647-A |
| titleOfInvention | Preparation of 2,5-dimethyl-3,4-dioxohexanediacid dialkyl ester and its preparation |
| abstract | NEW MATERIAL:A 2,5-dimethyl-3,4-dioxohexanediacid dialkyl ester shown by the formula (R is alkyl). n EXAMPLE: 2,5-Dimethyl-3,4-dioxohexanediacid diethyl ester. n USE: Having an aroma like strong fruits, useful as an intermediate for synthesizing 2, 5-dimethyl-4-hydroxy-2H-furan-3-one capable of being used in a wide range of flavors, e.g., drink, food, etc. n PROCESS: About 2mol propionic ester is condensed with about 1mol oxalic diester, to give a compound shown by the formula. The condensation reaction is carried out by adding the above-mentioned two components of raw materials to an ether type solution containing a strongly basic alkali metal compound, with complete stirring under substantially anhydrous conditions, preferably in an atmosphere of inert gas, e.g., nitrogen gas. n COPYRIGHT: (C)1981,JPO&Japio |
| priorityDate | 1980-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.