http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-201249536-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_adb0e564374fedf34b36103d36e6455a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-44 |
| filingDate | 2012-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_983a4331d18fedf2a2fadc7d49de8d3b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf36f7612bb3c19676acd189f6384b01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fb67bead013972f82bb3266f2d418f0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eda37a1565293ede25c6fa78f1524efc |
| publicationDate | 2012-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-201249536-A |
| titleOfInvention | Process to produce adipic acid and diesters thereof in a carbonylation process using palladium bidentate biphosphate ligands |
| abstract | The invention relates to a carbonylation process for the preparation of a compound of formula I XOOC-(CH2)4-COOY (I) wherein X and Y can independently represent H and/or alkyl, said carbonylation process comprising reacting: (a) a composition comprising at least one isomeric methyl pentenoate; (b) a source of Pd; (c) a bidentate di-phosphine of formula II, R1R2P - R3 - R - R4 - PR5R6 (II) wherein P represents a phosphorus atom; R1, R2, R5 and R6 can independently represent the same or different optionally substituted organic groups containing a tertiary carbon atom through which the group is linked to the phosphorus atom; R3 and R4 independently represent optionally substituted lower alkylene groups and R represents an optionally substituted aromatic group; (d) a source of anions derived from an acid with a pKa < 3; (e) carbon monoxide; and (f) an OH group comprising compound, under conditions wherein (I) is produced, characterized in that the least one isomeric methyl pentenoate comprises methyl 2-pentenoate. The process advantageously has a high conversion rate and may be used without the need to separate methyl 2-pentenoate from mixtures also containing methyl 3- and/or 4-pentenoate in order to isomerise the methyl 2-pentenoate. The process is suitable for the production of dimethyl adipate, adipic acid and hexamethylene diamine and products derived thereof such as nylon 6, 6 from renewable sources such as plant waste, sewage waste etceteras instead of using fossil sources. |
| priorityDate | 2011-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 159.