http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2727681-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_559ec3960c545c6b9f01db728ad39dba |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-52 |
| filingDate | 1994-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51373e128155efa1f81c3bd86c9a0fb3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61144346503366f417b95119870129ff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_937df5b067d35d9368fa4644e457ab7c |
| publicationDate | 1996-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2727681-A1 |
| titleOfInvention | PROCESS FOR THE PREPARATION OF PYRROLIZINE DERIVATIVES |
| abstract | This process comprises the steps of (i) preparing the compounds (III) by reaction between pyrrole and a dialkyl diazomalonate or an alkyl diazoacetate, in the presence of a transition metal as a promoter; (ii) preparing the compounds (IV) by reaction between the compounds of formula (III) and a dihaloethane, in the presence of potassium carbonate as the base, in an aprotic polar solvent; and (iii) preparing compounds (I) according to Vilsmeir-Haak aroylation, using arylmorpholide-acid chloride complexes or dialkyl amine-acid chloride complexes. (CF DRAWING IN BOPI) R = lower alkyl; X = hydrogen or alkoxycarbonyl; Ar = fraction chosen from: (CF DRAWING IN BOPI) Steps (ii) and (iii) can also be reversed. |
| priorityDate | 1994-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.