http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S55160740-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-703 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 |
| filingDate | 1979-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16ba29473f870dfa91b67ce46ff9449a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8775e715685eea4af383f70e9f0e89e5 |
| publicationDate | 1980-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S55160740-A |
| titleOfInvention | Preparation of cyclopentenolone |
| abstract | PURPOSE: To obtain the title compound useful as an intermediate material for agricultural chemicals, in high yield in four stages, by the reaction of a furylcarbinol prepared from furfural and a Grignard reagent, via a cyclopentenone, a cyclopentenedione and a cyclopentenone successively. n CONSTITUTION: A furylcarbinol compound of formula I produced from furfural and a Grignard reagent of formula R 1 MgX [R 1 is (cyclo)alkyl, alkenyl, alkynyl, thienyl, phenyl, p-methylbenzyl or benzyl; X is Cl, Br or I] is reacted in a water-organic solvent, in the presence of an acid, to give a cyclopentenone compound of formula II, which is oxidized to form a cyclopentenedione compound of formula III, and then reacted with a Grignard reagent of formula R 2 MgX (R 2 is alkyl, alkenyl, or alkynyl), to prepare a cyclopentenone compound of formula IV. The resulting compound is further reacted in the presence of a base, to give the object compound of formula V. n COPYRIGHT: (C)1980,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0428358-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111253231-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S58111690-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111253231-A |
| priorityDate | 1979-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.