| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ec1b26ca572f182176981868b4e8af94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_53b58ba5f52f2d612d9347a5daa2506a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fcd1e1306e4bb47bd091470183554a87
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f61fc89d96bf263e86b1cba32df80697
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_124de51bf147d22134c81b7768e5fc57 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D225-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D225-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-04 |
| filingDate |
2008-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2012-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_988bd6403159a0986e76615efb8324fa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67c484f47f3a6817d2356d10e9372ab6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e61dcbb29a6e7cb5a13ac6e1548589c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7943f37d9a9b0b04a15ecb6d414c2781
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_844b32fa870a583d0bf1029b0ab04e1e |
| publicationDate |
2012-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8309714-B2 |
| titleOfInvention |
Process for producing laurolactam |
| abstract |
Provided is a process for efficiently producing laurolactam by simple steps from cyclododecanone and hydroxylamine. This production process comprises the steps of: (a) reacting cyclododecanone with hydroxylamine in an aqueous solution in the presence of an oxime-formation solvent to produce cyclododecanone oxime; (b) separating the reaction mixture obtained after the oxime-forming step into an oil and an aqueous phases and collecting a solution of cyclododecanone oxime of the oil phase; (c) removing a part or all of the oxime-formation solvent and dissolved water from the solution of cyclododecanone oxime which is collected as an oil phase in the oil/aqueous phase separation step, whereby preparing a solution containing a rearrangement solvent to be used in a rearrangement reaction in a later step and the cyclododecanone oxime; (d) producing laurolactam from cyclododecanone oxime by rearrangement reaction using an aromatic-ring containing compound as a rearrangement catalyst; and (e) separating and removing the rearrangement solvent and the rearrangement catalyst from the reaction mixture after the rearrangement step, and purifying the laurolactam. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10093622-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8680267-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011092699-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2016156932-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022124861-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021112407-A1 |
| priorityDate |
2007-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |