Methyl (5-fluoro-2-methyl-1H-inden-3-yl)acetate → 5-fluoro-2-methyl-1H-3-indenyl-(2-hydroxy) ethane

HRID 377756Notes

Reaction equation

HRID 377756 reaction equation
[F:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[CH2:7][C:6]([CH3:11])=[C:5]2[CH2:12][C:13](OC)=[O:14]>C1COCC1>[F:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[CH2:7][C:6]([CH3:11])=[C:5]2[CH2:12][CH2:13][OH:14]

Participants

3

Reactant 1

HCID 15434585Methyl (5-fluoro-2-methyl-1H-inden-3-yl)acetate

Product 1

HCID 139332935-fluoro-2-methyl-1H-3-indenyl-(2-hydroxy) ethaneYield 63%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl 5-fluoro-2-methyl-3-indenyl-acetate (24 g) in dry THF (300 ml) lithiumaluminum hydride (6.9 g) is added. The mixture is stirred at room temperature for 1.5 hours. Excess LiAlH4 is destroyed with saturated aqueous NaHSO4 solution. The organic phase is concentrated in vacuo, and the crude product is purified via silica gel column chromatography elution with methylene chloride. The residue is recrystallized from hexane to give 5-fluoro-2-methyl-1H-3-indenyl-(2-hydroxy)ethane (yield 63%; m.p. 65°-66.5° C.).

Workup

  1. customExcess LiAlH4 is destroyed with saturated aqueous NaHSO4 solution
  2. concentrationThe organic phase is concentrated in vacuo
  3. customthe crude product is purified via silica gel column chromatography elution with methylene chloride
  4. customThe residue is recrystallized from hexane

Sources & evidence

ORD record
ord-a9a8b182139947f0a3b6dae9bf3d2073
Source dataset
uspto-grants-2000_02
Patent number
US06028116

Reaction notes

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