Polyfluoroalkyl Phosphate Research Articles

Catalytic phosphorylation of polyfluoroalkanols 13. Some ammonium and phosphonium salts as phosphorylation catalysts

It was shown that it is possible to use a series of ammonium and phosphonium salts as effective catalysts for the preparative synthesis of tris(polyfluoroalkyl) phosphates. The effect of the structure of substituted ammonium salts on their catalytic activity was studied in the phosphorylation of 1,1-dihydroperfluorobutanol by phosphorus oxychloride. It was determined that the reaction rate is affected not only by the solubility of the salt, but also by the nature of the ion pair and the steric access of the onium center for solvation by phosphoryl compounds.

Catalytic phosphorylation of polyfluoroalkanols. 11. ?-Polyfluoroalkylbenzyldichlorophosphates as phosphorylating agents in the catalytic phosphorylation of primary polyfluoroalkanols

α-Polyfluoroalkylbenzyldichlorophosphates react, in the presence of catalytic quantities of certain metals or their salts, with polyfluorinated primary alcohols with the formation of phosphorylation products [bis(polyfluoroalkyl)(α-polyfluoroalkylbenzyl)phosphates] exclusively.

Synthesis and Stereochemistry of some New Unsymmetrical Phosphates with α-Poly-fluoroalkylbenzyl Fragments

Abstract The methods of synthesis unsymmetrical polyfluoroalkyl phosphates (II) by catalytic phosphorylation of phenols or polyfluoroalkanols by chlorophosphates (I) were elaborated

Catalytic phosphorylation of pentafluorophenol with phosphoric acid chlorides

A new method was developed for the preparation of pentafluorophenyl phosphates, which consists in the catalytic phosphorylation of pentafluorophenol with POCl3, or with aryl and polyfluoroalkyl phosphates, in the presence of the salts of the metals of Groups I and II of the periodic system.

Polymers based on cyclic polyfluoroalkylene polyfluoroalkyl phosphates

Polymers based on cyclic polyfluoroalkylene polyfluoroalkyl phosphates

Catalytic phosphorylation of polyfluorinated alcohols Communication 1. Preparation of tripolyfluoroalkyl and aryl polyfluoroalkyl phosphates

1. A new method was developed for the catalytic phosphorylation of polyfluorinated alcohols. 2. In order to explain the catalytic action of the salts of metals of Groups I–III of the periodic system and of ammonium salts a scheme was proposed, which postulates reaction between the catalyst and the oxygen of the phosphoryl group, in this way facilitating nucleophilic substitution at the phosphorus atom. 3. A number of polyfluorotrialkyl phosphates and aryl polyfluoroalkyl phosphates was synthesized.

New method for producing aryl polyfluoroalkyl phosphates

New method for producing aryl polyfluoroalkyl phosphates