http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-0306197-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_da32d5d37133cae4ea6513b5876be7aa |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-343 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-347 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-343 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-602 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-593 |
| filingDate | 2003-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2973f1c2f84bd0eb2e18ccb4d2d7b737 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ab1c051777bb7dd2997b8d838f9c140 |
| publicationDate | 2004-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-0306197-A |
| titleOfInvention | Process for preparing alkylidene-substituted 1,4-dione derivatives |
| abstract | Process for Preparing Substituted Alkylidene Group 1,4-Dion Derivatives. The present invention relates to a process for the preparation of monoalkylidene-substituted 1,4-diones derivatives of formula (Ia) or (Ib) or a a mixture of (Ia) and (Ib): wherein: R 1, R 2, R 2 and R 3 are the same or different from each other, are hydrogen atoms or C 1 -C 2 hydrocarbon groups; The same or different T ^ 1 ^ and T ^ 2 ^ are OR ^ 4 ^, R ^ 4 ^, NR ^ 4 ^ ~ 2 ~, SR ^ 4 ^ or PR ^ 4 ^ ~ 2 ~, or T ^ 1 'and T 2' may be fused to an oxygen atom or a NR 4 'group, said process comprising the step of reacting a compound of formula (11) with a compound of formula (IIIa) or (IIIb) in the presence of at least one equivalent with respect to the compounds of formula (IIIa) or (IIIb) of a salt of a base or a neutral base at a temperature greater than 70 ° C. |
| priorityDate | 2002-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID458392451 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID457623688 |
Total number of triples: 17.