Alkyl fluoroformates RHOC(O)F are a new family of excellent alkylating agents. Perfluoroacylfluorides, selected perfluoroketones and fluoroolefins can be alkylated to hydrofluoroethers RF–O–RH and hydrofluoroalkanes RF–RH, respectively. Potassium fluoride and cesium fluorides catalysts in glymes at 50–100 °C are the preferred experimental conditions.
Methyl hypofluorite (MeOF) reactions with various fluoroolefins
作者:Tetsuya Suzuta、Takashi Abe、Akira Sekiya
DOI:10.1016/s0022-1139(02)00163-x
日期:2003.1
The reaction of methyl hypofluorite (MeOF) with certain fluoroolefins, such as CF2CF2, CF2CFCF3, CF2CFOCF3, CF2CFOMe, CF2CClF, CF2CHF, CF2CH2, CHFCH2, CF2CFCFCF2, occurred in CD3CN or in the presence of NaF. Using neat MeOF in the presence of NaF was a novel method and gave good results. We observed that when more than three fluorine atoms are bonded to the CC double bond, the addition products
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。