http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5359126-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d648658dd620f548c24de39659a5e9e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-347 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-347 |
| filingDate | 1994-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1994-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ef25a98bf7befecf1a593b088a8bedb |
| publicationDate | 1994-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5359126-A |
| titleOfInvention | Organic compositions and their manufacture |
| abstract | Preparing cyclohexanediones of the formula ##STR1## an aldehyde is reacted with a ketene to give a polymer having the repeating unit ##STR2## wherein n ranges from about 2 to about 1,000. The polymer is hydrolyzed to produce a mixture of an unsaturated acid of the formula R--CH═C(R 1 )--COOH and a hydroxy ester or acid of the formula R--CH(OH)C(R 1 )(R 2 )--COOR 3 , the mixture is then contacted with an esterifying agent to convert the acids to esters. The ester mixture is contacted with a dehydrating agent to convert the hydroxy ester to unsaturated ester of the formula R--CH═C(R 1 )--COOR 3 . The unsaturated ester is contacted with a basic catalyst to cyclize it to the cyclic dione ester of the formula ##STR3## and this ester is then hydrolyzed and decarboxylated to give the cyclohexanedione give the product n wherein: n R is selected, e.g., from alkylthio, alkylthioalkyl, cycloalkyl, alkyl substituted cycloalkyl, alkoxy, alkanoyloxy, alkoxycarbonyl, aryl, suhstituted aryl, heterocyclic, or substituted heterocyclic, wherein each group or moiety has up to 20 carbons; and n R 1 , R 2 and R 3 are each selected, e.g., from alkyl or cycloalkyl of up to 20 carbons, and R 2 and R 3 can also be hydrogen. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7214825-B2 |
| priorityDate | 1989-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.