http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IL-152702-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_315ae544538aaeac6d1f4eed6754e4bb |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D249-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D249-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-00 |
| filingDate | 2002-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2008-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | IL-152702-A |
| titleOfInvention | Process for the preparation of sulfonamides |
| abstract | A process for the preparation of a sulfonamide of formula (II), comprising reacting at elevated temperature an aniline of formula (I), with a sulfonating agent A of the formula R1-SO2-Z in the presence of a catalytic amount of either: (i) an amide B-1, other than N,N-dimethylformamide, or (ii) a high boiling tertiary amine B-2. Also provided in accordance with the present invention are processes for preparing sulfonamides of formula (II) by reacting an aniline of formula (I) with sulfanating agent A of the formula R1-SO2-Z in the presence of N,N-dimethylformamide, at a temperature in the range of about 120° C. to about 160° C. for about three to about seven hours. X, Y, Z, R and R1 are defined herein |
| priorityDate | 2000-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.