http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-956412-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bea23fc24859bc4382f3cd71d006cd4b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01D34-125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-26 |
| filingDate | 1962-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1964-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-956412-A |
| titleOfInvention | Improvements in or relating to carboxylic acid esters |
| abstract | b -Hydroxyethyl esters are prepared by reacting a mono- or polycarboxylic acid, or an acid ester of the polycarboxylic acid, free from aliphatic unsaturation with ethylene oxide in an aqueous reaction medium comprising water and one or more of the following; (1) an amide of saturated carboxylic acid (1-4C), (2) N-substituted amide of saturated carboxylic acid (1-4C) (3) neutral alkali metal salts (4) neutral salts of an alkaline earth metal which yield water-soluble salts with the mono- or poly-carboxylic acid or acid ester thereof, and (5) neutral ammonium salts. Preferred media are aqueous formamide or dimethyl acetamide, chlorides, nitrates and sulphates of sodium or potassium, or a mixture of these two classes. Acids reacted may be aliphatic carboxylic acids (1-20C), benzene mono- or polycarboxylic acids and their nuclear substituted derivatives and naphthalene carboxylic acids. Examples describe the use of propionic, butyric, caproic benzoic, chlorobenzoic, p-chloromethyl benzoic, 4-tert. butyl benzoic, 2-terephthaloyl benzoic acid, a -naphthoic, m-toluic, 2-hydroxy-p-toluic, terephthalic, trichloroisophthalic, phenyl acetic, and 1, 3, 5-benzene tricarboxylic acids, tetrachlorophthalic anhydride, mono-methyl terephthalate, and monomethyl isophthalate to form the corresponding b -hydroxyethyl esters. |
| priorityDate | 1961-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.