Benzyl Alcohol → 3,4,4-Trifluoro-3-butenoic acid, phenylmethyl ester

HRID 1938896Notes

Reaction equation

HRID 1938896 reaction equation
[F:1][C:2](=[C:7]([F:9])[F:8])[CH2:3][C:4](Cl)=[O:5].[CH2:10]([OH:17])[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1>ClCCl>[F:1][C:2](=[C:7]([F:9])[F:8])[CH2:3][C:4]([O:17][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)=[O:5]

Participants

4

Reactant 2

HCID 244Benzyl AlcoholHCID 109207893,4,4-Trifluoro-3-butenoyl chloride

Product 1

HCID 152391893,4,4-Trifluoro-3-butenoic acid, phenylmethyl esterYield 92%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of 3,4,4-trifluoro-3-butenoyl chloride (2.8 g, 0.0176 mole) and benzyl alcohol (0.9 g, 0.0083 mole) in 20 mL dichloromethane is heated at reflux for 40 h. The solution is cooled to room temperature, diluted with dichloromethane (15 mL), washed successively with 5% sodium bicarbonate, water and brine, and dried. Evaporation of the solvent gave 1.75 g of analytically pure product as a pale yellow oil, a 92% yield.

Workup

  1. temperatureat reflux for 40 h
  2. washwashed successively with 5% sodium bicarbonate, water and brine
  3. customdried
  4. customEvaporation of the solvent
  5. customgave 1.75 g of analytically pure product as a pale yellow oil

Sources & evidence

ORD record
ord-4ca9849a637b48ad8ff2da64df36be8e
Source dataset
uspto-grants-1997_12
Patent number
US05693865

Reaction notes

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