Method for the synthesis and use of pentafluorophenyl lithium to produce tetrakis pentafluorophenyl borate
US5679289A · kind A · utility
3Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1996 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Oct 23, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F5/027
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Procedures are disclosed which preclude significant safety hazards in the production of bulk quantities pentafluorophenyl lithium. A pentafluorophenyl compound is reacted with an alkyl lithium compound in a reaction zone, preferably temperature controlled, under conditions such that only a small amount of a predetermined quantity of pentafluorophenyl lithium product is present in the reaction zone at any time. The product may be directly discharged from the reaction zone for combination with another reactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.