Method for the production of monohydro-perfluoroalkanes, bis(perfluoroalkyl)phosphinates and perfluoroalkylphosphonates
AssigneeMerck Patent Gesellschaft
InventorsNikolai Ignatyev, Michael Weiden, Urs Welz-Biermann, Udo Heider, Peter Sartori, Andriy Kucheryna, Helge Willner
Life of this patent
Estimating the term…
Abstract
The present invention relates to a process for the preparation of monohydroperfluoroalkanes, bis(perfluoroalkyl)phosphinates and perfluoroalkylphosphonates which comprises at least the treatment of at least one perfluoroalkylphosphorane with at least one base in a suitable reaction medium.
Claims23
A process for preparing a monohydroperfluoroalkane, bis(perfluoroalkyl)phosphinate or perfluoroalkylphosphonate comprising treating a perfluoroalkylphosphorane with
- a) an alkaline earth metal hydroxide,
- b) an organometallic compound, or
- c) an organic base,
- and optionally treating with, an acid in a reaction medium.
A perfluoroalkylphosphonate or bis(perfluoroal)kylphosphinate selected from partially alkylated and peralkylated, phosphonium, sulfonium, pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium and triazolium salts.
Dependencies are inferred from the claim text.