http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0466549-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-71 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-736 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-258 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-313 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-373 |
| filingDate | 1990-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_647ca6c8d8f0308aa11dbc8971411480 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa047a59b4c60c53e2380338b66834b2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50bf2573d87ec93fd2060f88ec3b2b30 |
| publicationDate | 1992-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0466549-A |
| titleOfInvention | Production of optically active phenoxycarboxylic acid derivative |
| abstract | PURPOSE: To efficiently obtain the subject compound which is an intermediate for herbicides in good yield by reacting a compound having formyl group at the o-position and phenoxy group at the m-position with a specific optically active substance in the presence of an acid acceptor. n CONSTITUTION: A compound [e.g. 2-hydroxy-4(2-chloro-4-trifluoromethylphenoxy) benzaldehyde] expressed by formula I (X and Y are H, halogen, CF 3 or 1-5C alkyl) is reacted with an optical isomer [e.g. methanesulfonate of (S)(-)-methyl lactate] of a compound expressed by formula II (A is arylsulfonyl or alkylsulfonyl; R 1 is alkyl or phenyl; R 2 is hydroxyl, alkyl, phenyl, alkoxy, etc.) in the presence of an acid acceptor to afford an optically active phenoxycarboxylic acid derivative [e.g. R-optical isomer of 2-(1- methoxycarbonylethoxy)-4-(2-chloro-4-trifluoromethylph--enoxy)benzaldehyde] expressed by formula II. n COPYRIGHT: (C)1992,JPO&Japio |
| priorityDate | 1990-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.