Fluorination of derivatives of tri- and pentavalent phosphorus acids by perfluoropropylene oxide
摘要:
Perfluoropropylene (I) efficiently fluorinates esters and ester anhydrides of P(III) and P(V) acids to give acid fluoride derivatives of pentavalent phosphorus acids. Phosphites are initially oxidized to the corresponding phosphoryl compounds with subsequent substitution of the oxygen by two fluorine atoms by means of excess oxide (I).
Xenondifluoride, XeF2, effectively fluorinates various phosphorous acid derivatives as well as hydrophosphoryl compounds. Arbuzov rearrangement is followed by i-Bu → t-Bu isomerization in the case of i-Bu OPF2.
THE METHYL ESTER OF 3-AZIDOTETRAFLUOROPROPIONIC ACID - A NOVEL REAGENT FOR THE OXIDATIVE FLUORINATION OF GROUP 15 AND 16 ELEMENTS
作者:Sergei A. Lermontov、Igor M. Rakov、Sergei V. Shkavrov
DOI:10.1080/10426509908037024
日期:1999.1.1
Abstract The methyl ester of 3-azidotetrafluoropropionic acid, N3-CF2CF2COOMe oxidatively fluorinates P(III), Sb(III) and Te(II) compounds to form the corresponding difluorides in good yield.