http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-T892025-I4
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-141 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-783 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-141 |
| filingDate | 1970-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1971-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-T892025-I4 |
| titleOfInvention | Process for preparation of |
| abstract | A PROCESS FOR PREPARING 2,2-DIALKYLPROPANE-1,3-DIOLS BY CONTACTING AN ALCHOLIC SOLUTION OF AN ALDEHYDE HAVING A SINGLE ALPHA-HYDROGEN ATOM AND FROM 5 TO 23 CARBON ATOMS WITH FORMALDEHYDE IN THE PRESENCE OF A CAUSTIC ALDOL CONDENSATION CATALYST. THE ALDEHYDE IS PRESENT IN A RATIO OF FROM 1 TO 3 MOLES OF ALDEHYDE PER MOLE OF FORMALDEHYDE. THE REACTION IS CONDUCTED AT A TEMPERATURE OF FROM 0* C. TO 40* C. TO FORM AN ALDOL. THE ALCOHOL, SALTS AND CATALYST RESIDUE ARE REMOVED BY WATER WASHING. OTHER DISSOLVED IMPURITIES AND UNREACTED RE- AGENTS ARE REMOVED BY STRIPPING WITH A HEATED INERT GAS. THE PURIFIED ALDOL IS REDUCED WITH HYDROGEN IN THE PRESENCE OF A BARIUM-PROMOTED COPPER-CHROMIUM OXIDE CATALYST AND SUBSEQUENTLY STRIPPED OF REDUCTION BY-PRODUCTS WITH AN INERT GAS TO YIELD THE ESSENTIALLY PURE DIOL. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0006460-A1 |
| priorityDate | 1970-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.