Process for converting perfluorinated esters to perfluorinated acyl fluorides and/or ketones
US5466877A · kind A · utility
85Cited by
2References
24Claims
0Family size
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Key dates
| Filing date | Mar 15, 1994 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Mar 15, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for converting perfluorinated carboxylic acid esters to perfluorinated acyl fluorides and/or perfluorinated ketones comprises the step of combining at least one perfluorinated carboxylic acid ester with at least one initiating reagent selected from the group consisting of gaseous, non-hydroxylic nucleophiles; liquid, non-hydroxylic nucleophiles; and mixtures of at least one non-hydroxylic nucleophile (gaseous, liquid, or solid) and at least one solvent which is inert to acylating agents. The process enables the dissociation of even high molecular weight, perfluorinated esters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.