http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4302394-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dfb3672540a8b67fa45bbef9a1093a6c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D315-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-235 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D315-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-235 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-49 |
| filingDate | 1980-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1981-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6295ebc9ba8f1e0087cb1e8eac7ae9ad |
| publicationDate | 1981-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4302394-A |
| titleOfInvention | Production of butyrolactone |
| abstract | Butyrolactone is produced by oxidizing an aldehyde-ether of the general formula: <IMAGE> (I) wherein R1 and R2 each, independently of the other, represent a C1 to C4 alkyl radical, and R3 and R4 each, independently of the other, represent a hydrogen atom or a C1 to C3 alkyl radical, or wherein R1 represents a C1 to C4 alkyl radical, R2 and R3 together with the carbon atoms to which they are attached form a 5-membered or 6-membered cycloaliphatic ring, and R4 represents a hydrogen atom or a C1 to C3 alkyl radical, to form an acid ether of the general formula: <IMAGE> (II) followed by deetherification, dehydration and cyclization. Oxidation can be carried out with e.g. gaseous oxygen. Deetherification can be accomplished by contact with an acid catalyst, while cyclization may occur spontaneously. A cyclic process is described in which allyl alcohol is converted by reaction with a suitable olefin, e.g. iso-butylene, to an allyl ether of a tertiary alcohol, e.g. allyl t-butyl ether, which is then hydroformylated to form the compound of formula (I), while the olefin, e.g. iso-butylene, released on deetherification of the acid ether of formula (II), is recycled to the allyl ether formation step. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11021430-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4414420-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4533756-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4496769-A |
| priorityDate | 1979-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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