| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 |
| filingDate |
1982-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0f182e9cdc0cee23885c550e28a80dd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e88a33ea35078c5fe446e884896a453
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a04592a8c454f20a5f964467071e898 |
| publicationDate |
1982-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0061055-A1 |
| titleOfInvention |
Process for the preparation of 1.4-3.6-dianhydrohexitols |
| abstract |
A process for the preparation of 1.4-3.6-dianhydro-hexitols from hexitols by elimination of water is described, characterized in that gaseous hydrogen halide is used as the acidic dehydrating reagent and in amounts of up to 600 mol%, based on hexitols, optionally as cocatalysts, organic carboxylic acids and acid halides and / or anhydrides are used and the reaction is carried out in the absence of water and organic solvents, preferably with gaseous hydrogen chloride at temperatures up to 300 ° C. and pressures up to 250 bar. Very good yields are obtained after working up by distillation or extraction. The 1.4-3.6-dianhydro-hexitols can be used as starting materials in polycondensation and polyaddition processes. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7772412-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0114270-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7649099-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8900162-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007089510-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0102506-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7615652-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2617846-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7728156-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007089510-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0119795-A1 |
| priorityDate |
1981-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |