| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_02f9db0e6deb583da7c9a19c1cf01cf7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D405-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-448 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D405-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-448
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-09 |
| filingDate |
1998-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c03f54e6c2098a35bbdc450b03dd9c35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac253b64e55eba7878daca1884944b5c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bbe9e3a7eec46afc801f9279e80b99a |
| publicationDate |
1999-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5965746-A |
| titleOfInvention |
Efficient method for the synthesis of N-cyclic maleamic acids and N-cyclic maleimides |
| abstract |
Provided are methods for the synthesis of N-cyclic maleamic acids and N-cyclic maleimide derivatives, as well as N-cyclic maleamic acids and N-cyclic maleimides synthesized thereby. The method for synthesis of an N-cyclic maleamic acid involves reacting an amino group-containing N-cyclic compound with maleic anhydride in acetic acid to obtain an N-cyclic maleamic acid. An N-cyclic maleimide can be formed by adding hexamethyldisilazane to an N-cyclic maleamic acid prepared according to the above-described method, thereby cyclizing a maleamic acid site of the N-cyclic maleamic acid. The described methods allow for the products to be obtained at high yields. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0170829-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1136506-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7488856-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0170829-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7767821-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010003763-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2036953-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100415201-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005026088-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005026088-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103788076-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103788076-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007063189-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011184168-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8071794-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8129525-B2 |
| priorityDate |
1997-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |