Carbon Dioxide → Tributylphosphine

Participants

Reaction Steps

In 10.0 g of water was dissolved 10.0 g of tri-n-butylmethylphosphonium carbonate obtained as in Example 12 (1st step) and a solution of 4.2 g of maleic acid dissolved in 5.0 g of water was gradually added to the solution, whereby carbon dioxide simultaneously generated vigorously. For more completely removing carbon dioxide, degassing was performed for 2 hours at 40° C. and 20 mmHg and after confirming carbonate ions being less than 2 ppm, water was distilled off. The residue formed was recrystallized from methyl ethyl ketone to produce 1-1.2 g (94.1% of the theoretical yield, yield of 59.8% to tri-n-butylphosphine) of tri-n-butylmethylphosphonium monomaleate.

Provenance & Evidence