http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4287127-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/C07C43-162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B23D55-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-15 |
| filingDate | 1980-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1981-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a4b167a6eabfea45a22846b8077f3ea http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6295ebc9ba8f1e0087cb1e8eac7ae9ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09faa86538a138814cac393898b661fd |
| publicationDate | 1981-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4287127-A |
| titleOfInvention | Production of tetrahydrofuran |
| abstract | Tetrahydrofuran is produced by converting allyl alcohol to an allyl t-alkyl or -cycloalkyl ether of the general formula: <IMAGE> (III) 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, followed by reacting resulting compound of formula (III) under hydroformylation conditions with carbon monoxide and hydrogen in the presence of a hydroformylation catalyst to form a corresponding aldehyde-ether of the general formula: <IMAGE> (I) reducing resulting aldehyde-ether of the general formula (I) a corresponding hydroxy-ether of the general formula: <IMAGE> (II) and cleaving resulting hydroxy-ether of the general formula (II) under dehydrating conditions to produce tetrahydrofuran. Typically R1 and R2 each represent a methyl group while R3 and R4 each represent a hydrogen atom. The alkene of the general formula: <IMAGE> (IV) released upon cleavage of the hydroxy-ether of formula (II) can be recycled for reaction with further allyl alcohol to form a further quantity of the ether of the general formula (III). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4503275-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1116290-C http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4474973-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0124066-A1 |
| 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
Total number of triples: 144.