Phosgene → HCID 86736899, compound

HRID 2048974Notes

Reaction equation

HRID 2048974 reaction equation
[C:1]1([CH2:12][P:13]([CH3:16])(=[O:15])[OH:14])[CH:6]=[CH:5][C:4]([CH2:7][P:8]([CH3:11])(=O)[OH:9])=[CH:3][CH:2]=1.C(Cl)(Cl)=O>>[C:1]12[CH2:12][P:13]([CH3:16])(=[O:15])[O:14][P:8]([CH3:11])(=[O:9])[CH2:7][C:4]([CH:5]=[CH:6]1)=[CH:3][CH:2]=2

Participants

3

Reactant 2

HCID 6371PhosgeneHCID 20345327HCID 20345327, compound

Product 1

HCID 86736899HCID 86736899, compoundYield 100%

Procedure

44 Grams of p-xylylene-bis-(methylphosphinic acid) are heated to 240° C., and phosgene is slowly introduced, while stirring. In the course of 1.5 hours the temperature is reduced to 210° C. Subsequently nitrogen is passed through the mixture at this temperature. 41 Grams of p-xylylene-bis-(methylphosphinic acid)-anhydride are obtained which have a solidification point of from about 165° to 175° C.

Workup

  1. customIn the course of 1.5 hours
  2. customis reduced to 210° C

Sources & evidence

ORD record
ord-12bcac4519f34d1b83f03e117b4efd5d
Source dataset
uspto-grants-1980_04
Patent number
US04196141

Reaction notes

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