http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S60188340-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_21a39b3e9cbd64f50e4548ff455b6e89 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-02 |
| filingDate | 1984-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_094e001461bbbe6cd20f3258e3c0975d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80259e154c9d9d7e6ef8ffffe6c99bc5 |
| publicationDate | 1985-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S60188340-A |
| titleOfInvention | Preparation of 2,3-dimethylpentanal |
| abstract | PURPOSE: To obtain the titled compound useful as an intermediate for preparing mebutamate of a hypotensor, hypnotic, etc. by a simple operation in high yield in high purity, by reacting 2-methylpentenal with a Grignard reagent in the presence of a cuprous halide. n CONSTITUTION: In the presence of a cuprous halide shown by the formula CuX 2 (X 2 is Cl, Br, or I) such as cuprous chloride, cuprous bromide, cuprous iodide, 2- methylpentenal shown by the formula I is reacted with a Grignard reagent shown by the formula II (X' is Cl, Br, or I) to give 2,3-dimethylpentanal. 2- Methylpentenal as a raw material is easily obtained by subjecting propionaldehyde to aldole condensation in the presence of caustic potash, dehydrating it simultaneously. n EFFECT: The raw materials are inexpensive, particular reaction conditions are not required, and the desired substance is easily separated. n COPYRIGHT: (C)1985,JPO&Japio |
| priorityDate | 1984-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.