http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-805297-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d202e9e866984fe229f6facc38f1d740 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C327-00 |
| filingDate | 1955-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1958-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-805297-A |
| titleOfInvention | Esters of halides of dibasic organic acids |
| abstract | The invention comprises compounds of the formula ROOC(CH2)4CH(SR1)CH2COX (wherein R is an hydrocarbon group, R1 is an acyl group and X is an halogen atom) and their preparation by reacting an appropriate 7-monoester of a 3-acylthio-7-carboxyheptanoic acid with a halogenating agent, preferably thionyl chloride. Other halogenating agents referred to are phosphorus halides and oxyhalides. In examples: (1) 3-acetylthio-7-carboethoxyheptanoyl chloride is prepared by treating the appropriate acid with excess of thionyl chloride at room temperature; (2) and (3) the (+)- and (-)-enantiomorphs are similarly prepared from the (+)- and (-)-enantiomorphs of 3-acetylthio7 - carboethoxyheptanoic acid; (4) 3 - butyrylthio-7-carbophenoxyheptanoyl chloride is prepared similarly and it is stated that 3-propionylthio - 7 - carbomethoxyheptanoyl chloride, 3-benzoylthio - 7 - carbophenoxyheptanoyl chloride, 3 - acetylthio - 7 - carbobenzoxyheptanoyl chloride, 3 - butyrylthio - 7 - carboethenoxy heptanoyl chloride and 3-phenylacetylthio-7-carboethoxyheptanoyl chloride are also produced by chlorination of the corresponding heptanoic acids and that the corresponding bromides are similarly prepared. Specification 805,296 also is referred to. |
| priorityDate | 1954-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.