http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1097917-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd7c27b9ec61781656e6f039702fd568 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-373 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-313 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-373 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-313 |
| filingDate | 1999-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb01cf0bac2016ab94ebb29e569ffcc6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ecf2aa5ba2aa801631baff378094388 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6609828b354fdbb3666da52c81d82749 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_389e6f4aedfb4625aa492bd6079267eb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26819ce8de398b33ae055c8bd12cc57d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13961609ecfa9e4920dbd6ed0f9704e9 |
| publicationDate | 2001-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1097917-A1 |
| titleOfInvention | Preparing method of alpha-ketocarboxylic acid derivatives |
| abstract | The present invention relates to a preparing method of α-ketocarboxylic acidnderivatives, more specifically to a preparing method of α-ketocarboxylic acidnderivatives, expressed by the following formula 1, which are widely used as majornsource material for the synthesis of agrochemicals and medicines, by reacting α-hydroxycarboxylicnacid derivatives with hypobromous acid (HOBr),n nwherein R 1 represents a hydrogen atom, C 1 ~ C 10 alkyl, C 1 ~ C 10 haloalkyl, C 1 ~ C 10 nalkoxyalkyl, C 3 ~ C 6 cycloalkyl or aryl, wherein the said aryl is benzene, naphthalene,npyridine or thiophene, the aryl having more than one of the group consisting ofnhydrogen atom and the functional groups hydroxy, halogen atom, C 1 ~ C 3 alkyl, -n(CH 2 ) m L, C 1 ~ C 3 alkoxy, phenoxy and nitro group, wherein the said L is a halogennatom, alkylsulphonyloxy, benzenesulfonyloxy or toluenesulfonyl oxy group, and thensaid m is an integer of 1 or 2; R 2 represents a hydrogen atom or C 1 ~ C 6 alkyl; and nnrepresents 0 or an integer of 1 ~ 10. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1398308-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8670245-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2394979-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2394979-A1 |
| priorityDate | 1999-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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