http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-776423-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_653f5c196338bcb4c8f94debd09cdaad |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D9-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-1575 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P1-65131 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-1575 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P1-651 |
| filingDate | 1955-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1957-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-776423-A |
| titleOfInvention | Heterocyclic compounds and process for their preparation |
| abstract | The invention comprises 4:5:5-trichloro-and 5:5-dichloro-4-phenyl-1:3-dioxanes, optionally substituted by alkyl in 2-position, and 5 - chloro - 4 - phenyl - 1:3-dioxin - 4, optionally with 2-alkyl group, obtainable by the reaction between 3 - phenyl - 2:2 - dichloro - propanediol-1:3 with an aliphatic aldehyde in presence of acid catalyst, followed, if desired, by a dehydrochlorinating process with alcoholic alkali and by chlorination of the resulting dioxin. In examples, acetaldehyde, butyraldehyde and paraformaldehyde react with 2:2-dichloro-3-phenyl-1:3-propanediol to give the corresponding 5:5-dichloro-4-phenyl-2-methyl-, propyl- or unsubstituted 1:3-dioxanes; the first and third of the above-mentioned products are dehydrochlorinated to the corresponding 5 - chloro - 4 - phenyl - 1:3 - diox - 4 - ins, which are chlorinated to give 4:5:5-trichloro-4-phenyl-1:3-dioxane and its 2-methyl derivative. |
| priorityDate | 1954-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.