| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D323-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D323-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-10 |
| filingDate |
1974-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85d5f6315bf25e7e4b1555443f77952a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74a2d05476d2374ca73bf23aa8ef8678 |
| publicationDate |
1978-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4113739-A |
| titleOfInvention |
Process for preparation of (poly)cyclic polyethers |
| abstract |
In the preparation of (poly)cyclic polyethers by a cyclic Williamson synthesis, the improvement of contacting the reactants in a hindered (C 4 -C 14 ) alkanol. For example, bis-chloroethyl ether and the disodium salt of tetraethylene glycol are contacted in t-butanol to produce the cyclic polyether ##STR1## in high yields. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106699723-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106699723-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4248787-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4183862-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4256859-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013512221-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5314878-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5514668-A |
| priorityDate |
1974-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |