http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011251119-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-7022 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D3-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D9-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D7-3281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1456 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1493 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-267 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D7-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K15-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-267 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01F1-00 |
| filingDate | 2009-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46c3fb2ce42a62b9f064505c27fd910b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bb1621a7240d7e9b181247a776508f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f585847f8b56b9ece1ce2190d7bca922 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_912b209ae3de9ece6e0de6281ad5df2c |
| publicationDate | 2011-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2011251119-A1 |
| titleOfInvention | Mixtures of itaconic acid or itaconic acid derivatives and primary amines for producing 1,3- and 1,4-alkyl methyl pyrrolidones |
| abstract | The present invention relates to a mixture comprising itaconic acid or an itaconic acid derivative and a primary amine of the formula (I) n R—NH 2 (I)n n where the molar ratio of primary amine to itaconic acid or the itaconic acid derivative is in the range from 0.5:1 to 20:1, wherein the mixture comprises 50 mole percent or less of 4-carboxypyrrolidones of the formula (II), derivatives of the 4-carboxypyrrolidones of the formula (II) and 4-carbamidopyrrolidones of the formula (III) based on the itaconic acid used or the itaconic acid derivative used n n n n n n n n n n and in which R is a linear or branched saturated aliphatic radical having 1 to 24 carbon atoms or a saturated cycloaliphatic radical having 3 to 24 carbon atoms. n The invention further provides for the use of the inventive mixtures for preparing 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones, and also a process for preparing 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones. n In addition, the present invention relates to mixtures comprising 1,3-alkylmethylpyrrolidones and/or 1,4-alkylmethylpyrrolidones and 1,3-alkylmethylpyrrolidines, where the proportion of 1,3-alkylmethylpyrrolidines is in the range from 10 to 10 000 ppm, and to mixtures comprising 1,3-alkylmethylpyrrolidone and 1,4-alkylmethylpyrrolidone, wherein the molar ratio of 1,3-alkylmethylpyrrolidone to 1,4-alkylmethylpyrrolidone is in the range from 1:1 to 10:1. |
| priorityDate | 2008-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 364.