O-Hydroxyalkylation of 1,1,-dihydro fluorinated alcohols
申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0518534A1
公开(公告)日:1992-12-16
Mono O-hydroxyalkylated derivatives of 1,1-dihydroperfluorinated or 1H,1-alkylperfluorinated alcohols are prepared by reacting the alcohols with alkylene carbonates at a temperature of at least 60°C in the presence of a one- or two-part catalyst. The catalyst is a nitrogenous base, optionally in combination with a tetraalkylammonium halide. The O-hydroxyalkylated derivatives are useful non-ionic surfactants and emulsifiable compounds for fire extinguishing systems.