QUARTERNARY AMMONIUM PERFLUOROALKOXY SALTS FOR PREPARATION OF PERFLUOROPOLYETHERS
申请人:E. I. du Pont de Nemours and Company
公开号:EP2943456A1
公开(公告)日:2015-11-18
US9725456B2
申请人:——
公开号:US9725456B2
公开(公告)日:2017-08-08
[EN] QUARTERNARY AMMONIUM PERFLUOROALKOXY SALTS FOR PREPARATION OF PERFLUOROPOLYETHERS<br/>[FR] SELS D'AMMONIUM QUATERNAIRE DE PERFLUOROALCOXY SERVANT À PRÉPARER DES PERFLUOROPOLYÉTHERS
申请人:DU PONT
公开号:WO2014110329A1
公开(公告)日:2014-07-17
The present invention relates to anhydrous tetraalkyl pnictogen perfluoroalkoxy salts and a process to produce anhydrous tetraalkyl pnictogen perfluoroalkoxy salts. The process involves contacting a hydrofluoroether and an amine to produce a tetraalkyl pnictogen perfluoroalkoxy salt in the presence of a solvent. The present invention also relates to processes of preparing fluoroalkyl ether acid fluoride polymers using tetraalkyl pnictogen perfluoroalkoxy salt. The present invention further relates to some novel fluorinated alkyl polyether polymers.
A Convenient Route to Tetraalkylammonium Perfluoroalkoxides from Hydrofluoroethers
作者:Benson J. Jelier、Jon L. Howell、Craig D. Montgomery、Daniel B. Leznoff、Chadron M. Friesen
DOI:10.1002/anie.201410639
日期:2015.3.2
Hydrofluoroethers are shown to alkylate tertiary amines readily under solvent‐free conditions, affording valuable tetraalkylammoniumperfluoroalkoxides bearing α‐fluorines. The reaction of RFCF2OCH3 (RF=CF2CF3, CF2CF2CF3, and CF(CF3)2) with NR1R2R3 produces twenty new α‐perfluoroalkoxides, [(CH3)NR1R2R3][RFCF2O] under mild conditions. These α‐perfluoroalkoxides are easy to handle, thermally stable
氢氟醚在无溶剂条件下很容易使叔胺烷基化,从而提供了有价值的带有α-氟代的四烷基铵全氟烷氧化物。的R中的反应˚F CF 2 OCH 3(R ˚F = CF 2 CF 3,CF 2 CF 2 CF 3,和CF(CF 3)2)与NR 1 - [R 2 - [R 3产生20新α-perfluoroalkoxides,[( CH 3)NR 1 R 2 R 3 ] [R F CF 2O]在温和的条件下。这些α-全氟烷氧化物易于处理,热稳定,可用于苄基溴的全氟烷氧基化。