Hydrochloric Acid → Methyl 3-hydroxy-2-(alpha,alpha,alpha-trifluoro-m-tolyl)acrylate

HRID 648559Notes

Reaction equation

HRID 648559 reaction equation
[F:1][C:2]([F:15])([F:14])[C:3]1[CH:4]=[C:5]([CH2:9][C:10]([O:12][CH3:13])=[O:11])[CH:6]=[CH:7][CH:8]=1.[CH:16](OC)=[O:17].[Na].Cl>C(OCC)C>[OH:17][CH:16]=[C:9]([C:5]1[CH:4]=[C:3]([C:2]([F:14])([F:15])[F:1])[CH:8]=[CH:7][CH:6]=1)[C:10]([O:12][CH3:13])=[O:11]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 7865Methyl formateHCID 2734603Methyl (3-(trifluoromethyl)phenyl)acetateHCID 5360545Sodium

Product 1

HCID 67828062Methyl 3-hydroxy-2-(alpha,alpha,alpha-trifluoro-m-tolyl)acrylate

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent

Procedure

(aa) 26.2 g of methyl 3-trifluoromethylphenylacetate were dissolved in 100 ml of diethyl ether and, after the addition of 8.2 ml of methyl formate, treated with 2.76 g of sodium. The mixture was stirred at room temperature until the reaction was completed and treated with 1N hydrochloric acid while cooling. The organic phase was separated and the aqueous phase was extracted twice with ether. The combined organic phases were washed with saturated sodium chloride solution, dried over sodium sulfate, filtered and evaporated. Distillation yielded methyl 3-hydroxy-2-(α,α,α-trifluoro-m-tolyl)acrylate as a colorless oil of b.p. 59°-62°/0.2 mm.

Workup

  1. temperaturewhile cooling
  2. customThe organic phase was separated
  3. extractionthe aqueous phase was extracted twice with ether
  4. washThe combined organic phases were washed with saturated sodium chloride solution
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. customevaporated
  8. distillationDistillation

Sources & evidence

ORD record
ord-b4393a48f8994ecca034d8aa17dff6b8
Source dataset
uspto-grants-1988_04
Patent number
US04735940

Reaction notes

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