| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11B9-0026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-33
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C59-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C59-205 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11B9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-33 |
| filingDate |
1969-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1971-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
NL-6918228-A |
| titleOfInvention |
Aliphatic keto-esters used in perfumes |
| abstract |
Alicyclic keto esters of formula (I) (where R is 4-7C alkyl), cyclopentyl or cyclohexyl; and R1 is methyl or ethyl) are prepared by reacting a methyl or ethyl ester of a 9-12C gamma-ketocarboxylic acid with methyl or ethyl bromoacetate in the presence of zinc metal, and then treating the formed lactone ester with polyphosphoric acid. Compds. I and their hydrogenated esters have pleasant flower-like odours with a high persistence. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9579528-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009128026-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5728866-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9718894-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8841488-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9600206-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5874600-A |
| priorityDate |
1969-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |