http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9840345-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04180513f14ca8648500212e3de55eef |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-095 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C33-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-63 |
| filingDate | 1998-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2f5f62433f2d1aab81c2e2b3e6edcb0 |
| publicationDate | 1998-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9840345-A1 |
| titleOfInvention | Methods for preparing prenyl alcohol |
| abstract | Methods for preparing 3-methyl-2-buten-1-ol (prenyl alcohol) from 2-methyl-1,3-butadiene (isoprene) and carboxylic acids are disclosed. Carboxylic acids which can be used in the process have a Ka (relative to water) greater than 10-4; dichloroacetic acid is especially preferred. The process involves the slow (e.g., dropwise) addition of isoprene to the carboxylic acid to form a prenyl ester. The ester-formation reaction proceeds at room temperature in most cases; use of an organic base catalyst, preferably a sodium or potassium salt of the reactant carboxylic acid, improves the yield. The resultant prenyl ester can be converted to prenyl alcohol by reaction with a base. Prenyl alcohol can be readily converted to citral, a chemical intermediate in the synthesis of vitamins A and E, and several widely-used carotenoids. |
| priorityDate | 1997-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 82.