| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C301-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-06 |
| filingDate |
1983-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1985-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f12ec589422411eba65908ee70914f2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28ae0b05c1f90c4c30a40faa4d559287
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f991154a2fc96a311626e47a02b25b45 |
| publicationDate |
1985-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4522764-A |
| titleOfInvention |
Process for the production of α, β-unsaturated carboxylic acid alkyl esters sulfonated in the α-position and compounds obtainable by this process |
| abstract |
The title compounds are obtained by reacting compounds corresponding to the following formula: R1-CH=CH-CO2R2 wherein R1 represents hydrogen or a methyl group and R2 represents a primary or secondary C1 to C4 alkyl group, with from 0.6 to 1.6 mol. equivalents of SO3 and, optionally, with from 0.1 to 10 mol. equivalents of an alkylating agent at temperatures in the range from -10 DEG to +25 DEG C., subsequently heating the resulting reaction mixture for 0.5 to 6 hours to 70 DEG -200 DEG C. and then working it up by distillation. |
| priorityDate |
1981-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |