Pyridine → 2-Cyanoethylphosphoric acid pyridinium

Reaktionsgleichung

[NH+:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:7]([CH2:9][CH2:10][O:11][P:12](=[O:15])([O-:14])[O-:13])#[N:8].[NH+]1C=CC=CC=1.C(CCOP([O-])([O-])=O)#N.[Ba+2].N1C=CC=CC=1>O>[NH+:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:7]([CH2:9][CH2:10][O:11][P:12](=[O:13])([OH:15])[OH:14])#[N:8]

Komponenten

Versuchsvorschrift

According to the method of Tenor (J. Am. Chem. Soc., p. 159-168, 1961), 2-cyanoethylphosphoric acid pyridinium salt was prepared. Namely, 1.61 g of barium 2-cyanoethylphosphate and 10 g of an ion exchange resin (Dowex 50 (hydrogen ion form)) were suspended in water, stirred at room temperature for 30 minutes, 2 ml of pyridine was added to the supernatant, the mixture was washed with water, and the mixture then concentrated to dryness under a reduced pressure, followed by an addition of pyridine to give 1 mmol/ml of 2-cyanoethylphosphoric acid pyridinium solution.