Methanol → 5-(Trifluoromethyl)-3-thiophenemethanol

HRID 2203012Notes

Reaction equation

HRID 2203012 reaction equation
[F:1][C:2]([F:13])([F:12])[C:3]1[S:7][CH:6]=[C:5]([C:8](OC)=[O:9])[CH:4]=1.CO.[BH4-].[Na+]>C1COCC1>[F:12][C:2]([F:1])([F:13])[C:3]1[S:7][CH:6]=[C:5]([CH2:8][OH:9])[CH:4]=1

Participants

5

Conditions

Temperature
60 °C

Procedure

To a solution of methyl 5-(trifluoromethyl)thiophene-3-carboxylate (523 mg) in THF (1 ml)-MeOH (1 ml) was added NaBH4 (2.2 g) at room temperature, and the reaction mixture was stirred at 60° C. for 3 h. The reaction mixture was quenched with water, and extracted with EtOAc. The extract was washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (hexane/EtOAc) to give the title compound (449 mg) as a pale yellow oil.

Workup

  1. customThe reaction mixture was quenched with water
  2. extractionextracted with EtOAc
  3. washThe extract was washed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated
  6. custompurified by silica gel column chromatography (hexane/EtOAc)

Sources & evidence

ORD record
ord-1e2c80422bdb4179887d3c9cdb8d9899
Source dataset
uspto-grants-2016_06
Patent number
US09365540B2

Reaction notes

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