反应详情

306 g (1 mol) of hexadecylphosphonic acid (produced as in example 13) are suspended in 1.5 l of hexane and 200 ml of a 10 molar solution of sodium hydroxide are added and the suspension is refluxed for 2 hours. Then, 500 ml of a 1 molar solution of calcium chloride are added, and the suspension is refluxed for 4 hours and water removed by azeotropic distillation. The reaction solution is filtered and the residue is washed with water and hexane and dried under reduced pressure to obtain 313 g (96% of theory) of hexadecylphosphonic acid calcium salt as colorless solid.

1. temperaturethe suspension is refluxed for 2 hours
2. temperaturethe suspension is refluxed for 4 hours
3. customwater removed by azeotropic distillation
4. filtrationThe reaction solution is filtered
5. washthe residue is washed with water and hexane
6. customdried under reduced pressure