Pyridine → HCID 87547928, compound

Participants

Reaction Steps

Ethyl bis(pentafluoroethyl)phosphinate, (C2F5)2P(O)OC2H5, (3.956 g; 12.0 mmol) is slowly added dropwise to dry and cooled (0° C.) pyridine (0.941 g; 11.9 mmol) in a 25 ml glass flask. A pale-yellow, more highly viscous solution forms spontaneously. After 30 minutes at 0° C. and 6 h at room temperature, the reaction solution is a brown-orange colour. The readily volatile constituents are removed in vacuo (10−3 mbar) at 40° C. N-Ethylpyridinium bis(pentafluoroethyl)phosphinate, [EPy][(C2F5)2P(O)O], (4.845 g; 11.8 mmol) can be isolated as highly viscous, intensely brown-orange liquid in quantitative yield and a purity of 99%.

Provenance & Evidence