http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-936373-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c179b10cc0af597505d87b5e20c6becf |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F5-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F5-025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F5-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F5-02 |
| filingDate | 1962-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1963-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-936373-A |
| titleOfInvention | Improvements in or relating to the production of esters of boron-containing acids |
| abstract | Ethynylboronates and borate esters are made by effecting transesterification reaction at an elevated temperature between an ethynylboronate of the formula HC=CB(OR)2 and a borate of the formula B(OR1)3, where the R radicals are hydrocarbon radicals free from non-aromatic unsaturation, preferably saturated hydrocarbon radicals of 1 to 8 carbon atoms or a phenyl radical, and the R1 radicals are hydrocarbon radicals or halogensubstituted hydrocarbon radicals, preferably saturated hydrocarbon radicals containing 1 to 20 carbon atoms, non-aromatic unsaturated acyclic hydrocarbon radicals containing 2 to 18 carbon atoms, halogen substituted saturated hydrocarbon radicals containing 1 to 12 carbon atoms, or phenyl radicals which are either unsubstituted or halogen-substituted, or a phenyl-substituted cyclohexyl radical; at least one of the esters produced having a lower boiling point then either of the starting materials. The product having the lower boiling point may be removed by distillation as the reaction proceeds. It is often advantageous to allow the reaction to proceed under reflux conditions for a period before fractionally distilling the reaction mixture. Preferably 1 to 3 stoichiometric proportions of the borate are used. Detailed examples describe the preparation of diphenyl-, diallyl- and dicyclohexyl ethynyl boronates. Specification 884,547 is referred |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4795821-A |
| priorityDate | 1961-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.