| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_046e16bd6918ef3cd62184605b15a413 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D305-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D305-12 |
| filingDate |
1999-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0afb8ed159ab18313e79e3210aeafed0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e256cad9d137a09155622c584fa41f0a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9207af4b8bee8bf7275944d717ae04cc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_87f444e1483a4064e9d52683c03ba5c6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54ef41930c349af9d2496d1ca9003006 |
| publicationDate |
2000-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6040465-A |
| titleOfInvention |
Process for producing optically active β-lactones |
| abstract |
Disclosed is a process for producing an optically active β-lactone represented by the general formula (I): ##STR1## wherein R 1 represents an alkyl group having 1-9 carbon atoms which can be branched or a cycloalkyl group having 5-7 carbon atoms. The process comprises reacting an aldehyde represented by the general formula (II): n n R.sup.1 CHO (II) n n wherein R 1 is the same as defined above, with a ketene represented by the general formula (III): n n CH.sub.2 ═C═O (III) n n in the presence of a bissulfonamide/aluminum complex represented by the general formula (IV): ##STR2## wherein Ar represents 2,4,6-(R 2 ) 3 C 6 H 2 (wherein R 2 represents an alkyl group having 2-4 carbon atoms), Et represents an ethyl group and Ph represents a phenyl group. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012010296-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6884848-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2409965-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102971285-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102971285-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6593490-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6565968-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8563752-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9394238-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003114551-A1 |
| priorityDate |
1998-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |