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

HRID 477954

Reaktionsgleichung

Reaktionsgleichung von HRID 477954
[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]

Komponenten

6

Edukt 4

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

Produkt 1

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

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3283Diethyl EtherLösungsmittel

Versuchsvorschrift

(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.

Aufarbeitung

  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

Quellen und Nachweise

ORD-Eintrag
ord-0a8397fc083c47c09bc3122845ef585d
Quelldatensatz
uspto-grants-1989_12
Patentnummer
US04889848

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