Hydrochloric Acid → Phosphorodichloridic acid, 2,2,2-trichloroethyl ester

HRID 462645Notes

Reaction equation

HRID 462645 reaction equation
[O:1]=[P:2]([Cl:5])(Cl)[Cl:3].[Cl:6][C:7]([Cl:11])([Cl:10])[CH2:8][OH:9].Cl>>[P:2]([Cl:5])([Cl:3])(=[O:1])[O:9][CH2:8][C:7]([Cl:11])([Cl:10])[Cl:6]

Participants

4

Reactant 3

HCID 313Hydrochloric AcidHCID 8259TrichloroethanolHCID 24813Phosphorus oxychloride

Product 1

HCID 87834Phosphorodichloridic acid, 2,2,2-trichloroethyl esterYield 57%

Procedure

To 90 g (0.59 mol) of POCl3 at 25° C. was slowly added 72 g (0.48 mol) of 2,2,2-trichloroethanol over a two hour period. The mixture was heated and maintained at 100°-125° C. for 14 hours during which time 22 g (0.60 mol) of HCl was recovered in the water scrubber. The mixture was distilled to give 72 g (0.27 mol) of 2,2,2-trichloroethyl phosphorodichloridate, bp 84° C. at 3 mm (57% yield).

Workup

  1. customat 25° C.
  2. customover a two hour
  3. temperatureThe mixture was heated
  4. customwas recovered in the water scrubber
  5. distillationThe mixture was distilled

Sources & evidence

ORD record
ord-cb4cd0cb10d44e7aaa49dc57aaab34e2
Source dataset
uspto-grants-1985_05
Patent number
US04517002

Reaction notes

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