http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1410848-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e90fc8c0f6bfbab4716fea6ae9d9a524 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-27 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-27 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/C07C309-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-41 |
| filingDate | 1973-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1975-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1410848-A |
| titleOfInvention | Process for the manufacture of halogenophenolsulphonates |
| abstract | 1410848 Halophenol sulphonic acids: halophenols RHONE-PROGIL 22 Nov 1973 [29 Dec 1972] 54271/73 Heading C2C Optionally alkylated halophenol sulphonic acids or salts or ethers thereof in which the phenolic OH or ether group is in the orthoposition to the sulphonate group are obtained by reacting a metal salt of an optionally alkylated polyhalobenzene-monosulphonic acid, at least one of the halogen atoms being in an orthoposition to the sulphonate group with a saponification agent, in the presence of at least one organic solvent having a dielectric constant less than or equal to 25 at 20 to 25 C., said solvent being capable of dissolving over 50% of the reagents at the reaction temperature. Specified saponification agents are alkali metal hydroxides and alcoholates. Specified organic solvents are aliphatic, cycloaliphatic and benzyl alcohols, amines, liquid polyethers and mixtures of solvents containing co-solvents which have less power to dissolve the reagents by themselves, e.g. oxygen-containing heterocyclic compounds. The reaction temperature is advantageously between 100 and 250 C. Examples are given which illustrate the process. Also, halophenols may be obtained by desulphonating and optionally hydrolysing the optionally alkylated halophenol sulphonic acids obtained above either by direct reaction of the reaction mixtures obtained in the above reaction or by reaction of the isolated products. Examples are given which illustrate this step of the process. |
| priorityDate | 1972-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.