Aluminum Hydroxide → Phosphinic acid, P,P-diethyl-, aluminum salt (3:1)

HRID 1868567Notes

Reaction equation

HRID 1868567 reaction equation
[CH2:1]([P:3]([CH2:6][CH3:7])(=[O:5])[O-:4])[CH3:2].[Na+].[OH-].[Al+3:10].[OH-].[OH-]>C(O)(=O)C>[CH2:1]([P:3]([CH2:6][CH3:7])(=[O:4])[O-:5])[CH3:2].[Al+3:10].[CH2:1]([P:3]([CH2:6][CH3:7])(=[O:4])[O-:5])[CH3:2].[CH2:1]([P:3]([CH2:6][CH3:7])(=[O:4])[O-:5])[CH3:2]

Participants

4

Reactant 2

HCID 10176082Aluminum HydroxideHCID 23688148Sodium diethylphosphinate

Product 1

HCID 21863131Phosphinic acid, P,P-diethyl-, aluminum salt (3:1)

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

800 g of the resultant mixture composed mainly of sodium diethylphosphinate were dissolved in 2500 ml of acetic acid, and 38 g (0.48 mol) of aluminum hydroxide were then added. The mixture was then heated at reflux for about 4 hours, cooled, and filtered. The resultant solid was washed first with 1 liter of glacial acetic acid, then with 1 liter of distilled water, and finally with 500 ml of acetone, and then vacuum-dried at 130° C. Yield: 183 g (92% of theory).

Workup

  1. temperatureThe mixture was then heated
  2. temperatureat reflux for about 4 hours
  3. temperaturecooled
  4. filtrationfiltered
  5. washThe resultant solid was washed first with 1 liter of glacial acetic acid
  6. dry with materialwith 1 liter of distilled water, and finally with 500 ml of acetone, and then vacuum-dried at 130° C

Sources & evidence

ORD record
ord-8ea2021ee5794684ac66aa620a97fe7a
Source dataset
uspto-grants-2009_12
Patent number
US07635785B2

Reaction notes

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