| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-353 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-57
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-331
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-353 |
| filingDate |
1987-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1989-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0b9f40ec42275cc5f14f02181959d45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38e19aadfa8807b8503158f23920ea29 |
| publicationDate |
1989-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4857658-A |
| titleOfInvention |
Preparation of (Z)-2-(2-arylethenyl)arylcarboxylic acids |
| abstract |
(Z)-2-(2-arylethenyl)arylcarboxylic acids of the general formula I <IMAGE> (I) where A is a group for completing an aromatic ring system and Ar is an aromatic radical, are prepared by reacting a 2-formylarylcarboxylic acid of the general formula II <IMAGE> (II) with an (arylmethyl)phosphonium salt of the general formula III <IMAGE> (III) where R1, R2 and R3 are each organic radicals and X is halogen, in the presence of a base at from (-20 DEG ) to +30 DEG C. by carrying out the reaction in the presence of a C1-C5-alkanol and/or a C2-C4-alkanediol. |
| priorityDate |
1986-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |