http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1138815-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65842 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65785 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65848 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6584 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6578 |
| filingDate | 1966-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51ebff1c7f9ad0c9f4d5a0c79d85b92b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2429e5654682faf71d97469fe2673c1a |
| publicationDate | 1969-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1138815-A |
| titleOfInvention | Phosphonic and thiophosphonic acid derivatives |
| abstract | 1,138,815. Cyclic phosphorus derivatives. FARBENFABRIKEN BAYER A.G. 18 Feb., 1966 [22 Feb., 1965; 5 Oct., 1965], No. 7322/66. Heading C2C. Novel phosphonic and thiophosphonic acid derivatives of the general formula where R is C 1-4 alkyl, cyclohexyl, or aryl, X is oxygen or sulphur and ZH and YH, alike or different, are -OH, -SH, or -NH-alkyl, wherein the alkyl radical contains from 1 to 4 carbon atoms, are prepared by reacting an appropriate phosphonic or thiophosphonic acid dihalide with a 1,2-disubstituted ethane of the formula HY-CH 2 -CH 2 -ZH in an inert, anhydrous organic solvent, optionally in the presence of a tertiary organic base. The reaction temperature is normally from about 0‹ to 150‹ C., preferably from 20‹ to 80‹ C., and the reaction time is from 1 to 12 hours, preferably from 2 to 6 hours. The compounds are useful as catalysts in the conversion of organic isocyanates into carbodiimides, and the preparation of diphenyl carbodiimide from phenyl isocyanate is described. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4136041-A |
| priorityDate | 1965-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.