反应详情

Propargyl bis(pentafluoroethyl)phosphinate (11.18 g; 32.9 mmol) is slowly added dropwise to cooled (0° C.) N-methylimidazole (2.22 g; 27.1 mmol) in a 100 ml glass flask. In an exothermic reaction, an orange solid is formed, which is warmed and stirred at room temperature for 1.5 h. After drying in vacuo (10−3 mbar) at room temperature, 1-propargyl-3-methylimidazolium bis(pentafluoroethyl)phosphinate, [CH≡CCH2MIM][(C2F5)2P(O)O], (11.14 g; 26.3 mmol) is isolated as pale-orange solid in a yield of 99% and a purity of 97%. The coloured solid can be washed colourless with dichloromethane and n-hexane.

1. customIn an exothermic reaction
2. customan orange solid is formed
3. temperaturewhich is warmed
4. customAfter drying in vacuo (10−3 mbar) at room temperature