| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-452 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-444
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-416
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-452
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-40 |
| filingDate |
1996-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3278e5b6a2be122ab1cc161b23746272
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bd37ecb8996708d3e2532f7da07bee4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_331236ecfd7a18353e5b16f4b0d475a9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51994d0411c302c4d407187b78b6d4d1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_358b965b53d4e5cf0408af0d5c2e4694 |
| publicationDate |
2000-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-401387-B |
| titleOfInvention |
Process for the preparation of N-substituted cyclic imides |
| abstract |
N-substituted cyclic imides are obtained by reacting a cyclic acid anhydride with an amine in the presence of a solvent and an acid catalyst at 80 to 200 DEG C and with removal of the water formed, it being particularly advantageous to carry out this reaction in the presence of a stabilizer and an inert, dipolar aprotic cosolvent, optionally to add an inert organic solvent of low or zero polarity to the reaction mixture present after the reaction, to add a non-aqueous base in an amount of 0.5 to 50% by weight, based on the cyclic anhydride of the formula (II) used, and to separate off the precipitate formed to give a filtrate containing the N-substituted cyclic imide. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11345661-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110198927-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110198927-A |
| priorityDate |
1995-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |