Water → 2-(2,3,6-Trifluorophenyl)ethan-1-ol

HRID 2107604Notes

Reaction equation

HRID 2107604 reaction equation
[H-].[Al+3].[Li+].[H-].[H-].[H-].[F:7][C:8]1[C:13]([F:14])=[CH:12][CH:11]=[C:10]([F:15])[C:9]=1[CH2:16][C:17](O)=[O:18].O.[OH-].[Na+]>C(OCC)C>[F:7][C:8]1[C:13]([F:14])=[CH:12][CH:11]=[C:10]([F:15])[C:9]=1[CH2:16][CH2:17][OH:18]

Participants

6

Reactant 4

HCID 962Water2×HCID 14798Sodium HydroxideHCID 27779482,3,6-Trifluorophenylacetic acidHCID 21226445Aluminium lithium hydride

Product 1

HCID 148346752-(2,3,6-Trifluorophenyl)ethan-1-olYield 102.5%

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent3×

Procedure

Lithium aluminum hydride (0.8 g) is suspended in dry diethyl ether (5 ml) and the mixture is stirred. To the mixture is added dropwise a solution of 2-(2,3,6-trifluorophenyl)acetic acid (2.0 g) in dry diethyl ether (15 ml), and the mixture is refluxed for 30 minutes. To the reaction mixture are added water (0.8 ml), 10% aqueous sodium hydroxide (0.8 ml) and water (1.6 ml) in this order, and the mixture is stirred at room temperature. To the mixture is added diethyl ether (10 ml), and the resulting precipitates are separated by filtration and washed with tetrahydrofuran. The washing liquid and the filtrate are combined and then concentrated under reduced pressure to give 2-(2,3,6-trifluorophenyl)ethyl alcohol (1.9 g), as colorless oil.

Workup

  1. temperaturethe mixture is refluxed for 30 minutes
  2. stirringthe mixture is stirred at room temperature
  3. customthe resulting precipitates
  4. customare separated by filtration
  5. washwashed with tetrahydrofuran
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-b0d881b438224d82a4269f724d22e5a4
Source dataset
uspto-grants-1990_06
Patent number
US04935420

Reaction notes

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