Methacrylic Acid → HCID 54312939, compound

HRID 2397676Notes

Reaction equation

HRID 2397676 reaction equation
[Cl:1][C:2]([CH2:4][CH2:5][P:6]([Cl:10])([CH2:8][CH3:9])=[O:7])=[O:3].[CH2:11](P(Cl)Cl)C.C(O)(=O)C=C.C(O)(=O)C(C)=C>C1C=CC=CC=1>[Cl:1][C:2]([CH:4]([CH3:11])[CH2:5][P:6]([Cl:10])([CH2:8][CH3:9])=[O:7])=[O:3]

Participants

6

Reactant 4

HCID 4093Methacrylic AcidHCID 6581Acrylic AcidHCID 15157Phosphonous dichloride, ethyl-2×HCID 2785341HCID 2785341, compound

Product 1

HCID 54312939HCID 54312939, compoundYield 37.2%

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent2×

Procedure

USSR Patent Specification No. 173,763 also describes the preparation of beta-chloroformyl-ethyl ethyl phosphinic acid chloride by reacting ethyldichlorophosphine and acrylic acid in benzene at temperatures of up to 60° C., over a period of 2.5 hours, and distilling the reaction product, which is obtained in a yield of 62.4 % of the theoretical. In the absence of the benzene solvent, the temperature increases spontaneously to 150° C., and the yield falls to 31.6 % of the theoretical. The reaction of ethyldichlorophosphine with methacrylic acid, in the absence of a solvent, produces beta-chloroformyl-beta-methyl-ethyl ethyl phosphinic acid chloride in a yield of 37.2 % of the theoretical.

Workup

  1. customup to 60° C.
  2. distillationdistilling the reaction product
  3. customwhich is obtained in a yield of 62.4 % of the theoretical

Sources & evidence

ORD record
ord-318a665fa48944ba8ee36bfd15135fdf
Source dataset
uspto-grants-1977_05
Patent number
US04022826

Reaction notes

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