Method for purifying fluoroaryl borane derivative and bis (fluoraryl) borane derivative
US6818785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Sep 4, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F5/027
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
After a fluoroaryl borane derivative is precipitated from a solution containing the fluoroaryl borane derivative, a bis (fluoroaryl) borane derivative, and a hydrocarbon solvent and is subjected to first filtration so that the fluoroaryl borane derivative is isolated, a filtrate that has been obtained by the first filtration is cooled and the bis (fluoroaryl) borane derivative is separated and is subjected to second filtration so that the bis (fluoroaryl) borane derivative is isolated. In a case where the solution contains fluorobenzene, the solution is concentrated, so that the fluorobenzene is removed. Thus, it is possible to provide the high-purity fluoroaryl borane derivative and bis (fluoroaryl) borane derivative having no impurity with ease and at a low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.