| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d89a1fdfad4ceb45818cee0bfda31a6 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-404 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-40 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-63
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-267
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-404 |
| filingDate |
2007-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2010-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_600ee631326316d3b386cbe70b898903
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa5b216a0159f5d72a31aaff83de041a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c69f59f86ea7ee40e02742428be2731d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b04ee51ca8c7996620b15e2e346bb383
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efb64bad2f7403ee7075aac1a7479b47 |
| publicationDate |
2010-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7674916-B2 |
| titleOfInvention |
Process for producing cyclic compounds |
| abstract |
The invention includes methods of processing an initial di-carbonyl compound by conversion to a cyclic compound. The cyclic compound is reacted with an alkylating agent to form a derivative having an alkylated ring nitrogen. The invention encompasses a method of producing an N-alkyl product. Ammonia content of a solution is adjusted to produce a ratio of ammonia to di-carboxylate compound of from about 1:1 to about 1.5:1. An alkylating agent is added and the initial compound is alkylated and cyclized. The invention includes methods of making N-methyl pyrrolidinone (NMP). Aqueous ammonia and succinate is introduced into a vessel and ammonia is adjusted to provide a ratio of ammonia to succinate of less than 2:1. A methylating agent is reacted with succinate at a temperature of from greater than 100° C. to about 400° C. to produce N-methyl succinimide which is purified and hydrogenated to form NMP. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010145072-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8367882-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8362307-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7973177-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011009614-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8834587-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8455705-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8350108-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9217114-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8501963-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009211942-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8053615-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010076233-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8933281-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8231857-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010288975-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011263874-A1 |
| priorityDate |
2002-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |