http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0879816-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b4956374e238689b820a3469ca82b9e0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-40 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C311-60 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-40 |
| filingDate | 1998-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e45f17a5aabced2aa6b77eb237ef159b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05aef5c828c8cef9cebcee4729babb3b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c69e4936ba58028ec8d8506963d2309f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce986d191cc913b2cbd5e738202c4aa9 |
| publicationDate | 1998-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0879816-A1 |
| titleOfInvention | Process for producing arylsulfonylureide compounds |
| abstract | The arylsulfonylureide compound which is of valuenas a color developer is provided in high yield and highnpurity by a simple procedure. The technology of theninvention for producing an arylsulfonylureide compoundnof general formula (1)n (Ar 1 -SO 2 NHCONH) n -Ar 2 nwherein Ar 1 represents an aromatic residue; Ar 2 representsna bivalent or trivalent aromatic residue; nnrepresents an integer of 2 or 3ncomprises reacting an arylsulfonamide alkali metal saltnof general formula (2)n Ar 1 -SO 2 NH·B nwherein B represents an alkali metalnwith an aromatic isocyanate compound of general formulan(3)n Ar 2 -(NCO) n nin at least one solvent selected from the class consisting nof acetonitrile, acetone, methyl ethyl ketone,ndiethyl ketone, methyl isobutyl ketone, tetrahydrofuran,nethyl acetate, and butyl acetate and containingn1 to 10 weight % of water nin a state of suspension being maintained throughoutnthe reaction and neliminating the alkali metal from the resulting arylsulfonylureidencompound alkali metal salt in the samensolvent. |
| priorityDate | 1997-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 401.