Ethanol → Ethyl hydrogen phenylphosphonite

HRID 729129Notes

Reaction equation

HRID 729129 reaction equation
[C:1]1([P:7](Cl)Cl)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:10]([OH:12])[CH3:11].C(N(CC)CC)C.C([O:22]CC)C>>[CH2:10]([O:12][P:7]([C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1)[OH:22])[CH3:11]

Participants

5

Reactant 4

HCID 702EthanolHCID 3283Diethyl Ether2×HCID 8471TriethylamineHCID 12573Phenyl phosphorus dichloride

Product 1

HCID 10920933Ethyl hydrogen phenylphosphonite

Procedure

To a solution of 270 ml of phenyldichlorophosphine in 1000 ml of diethylether is added with stirring and cooling with ice a solution of 280ml of ethanol and 280 ml of triethylamine in 500 ml of diethylether. After stirring for 14 hours at 20° the precipitate is filtered off and the filtrate is fractionally distilled. There is obtained phenylphosphonous acid-ethylester as a colorless liquid, b.p. 83°-85°/6 Pa.

Workup

  1. stirringAfter stirring for 14 hours at 20° the precipitate
  2. filtrationis filtered off
  3. distillationthe filtrate is fractionally distilled

Sources & evidence

ORD record
ord-7dff391374d148c7a521a10da8bd40cb
Source dataset
uspto-grants-1991_09
Patent number
US05051524

Reaction notes

Loading…