| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12C11-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-172 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-141
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J25-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J25-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-02 |
| filingDate |
1992-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a24474ca0eb75ceff4eac6d7ba548071 |
| publicationDate |
1993-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H05117258-A |
| titleOfInvention |
Process for producing mixture of tetrahydrofuran and 3-alkyltetrahydrofuran and copolymer of tetrahydrofuran and 3-alkyltetrahydrofuran |
| abstract |
(57) [Abstract] [Objective] To provide a novel method for producing a mixture of tetrahydrofuran and 3-alkyltetrahydrofuran and a copolymer of tetrahydrofuran and 3-alkyltetrahydrofuran. [Structure] 1,4-butynediol or 1,4-butenediol is mixed with hydrogen and an aldehyde R-CHO (where R is hydrogen or an alkyl group having 1 to 4 carbon atoms) at pH 8 to 14 in the presence of a hydrogenation catalyst. Radical) to react with 1,4-butanediol A mixture of 2-alkyl-1,4-butanediol is prepared and then cyclized to give a mixture of tetrahydrofuran and 3-alkyltetrahydrofuran. Butynediol or butenediol / aldehyde weight ratio of 2/1 to 200 / It is 1. A copolymer of tetrahydrofuran and 3-alkyltetrahydrofuran is prepared by polymerizing the obtained mixture of tetrahydrofuran and 3-alkyltetrahydrofuran. |
| priorityDate |
1983-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |