1,4-Dioxaspiro[4.5]decan-8-one → 1,4-Dioxaspiro(4.5)decan-8-ol

HRID 1025729Notes

Reaction equation

HRID 1025729 reaction equation
[CH2:1]1[O:11][C:4]2([CH2:9][CH2:8][C:7](=[O:10])[CH2:6][CH2:5]2)[O:3][CH2:2]1.[BH4-].[Na+]>CO.O>[O:3]1[C:4]2([CH2:9][CH2:8][CH:7]([OH:10])[CH2:6][CH2:5]2)[O:11][CH2:1][CH2:2]1

Participants

4

Reactant 2

HCID 5674151,4-Dioxaspiro[4.5]decan-8-oneHCID 4311764Sodium borohydride

Product 1

HCID 5673521,4-Dioxaspiro(4.5)decan-8-olYield 101.1%

Reagents, catalysts & solvents 1

HCID 22242641Methanol--water (1/1)Solvent

Procedure

1,4-Cyclohexanedione mono-ethylene ketal (5.0 g, 32 mmol) in 20 mL of MeOH/water (1:1) was added NaBH4 (1.21 g, 32 mmol). The mixture was stirred at room temperature overnight. The MeOH was removed via rotary evaporation. The aqueous layer was extracted with EtOAc (3×). The combined organic layers were dried (MgSO4), and concentrated to give an oil which was stored on a high vacuum line overnight to afford 5.12 g of 1,4-dioxaspiro[4.5]decan-8-ol as an oil. MS (EI) calcd: (M+H)+=159.1; found: 159.2.

Workup

  1. customThe MeOH was removed via rotary evaporation
  2. extractionThe aqueous layer was extracted with EtOAc (3×)
  3. dry with materialThe combined organic layers were dried (MgSO4)
  4. concentrationconcentrated
  5. customto give an oil which
  6. customwas stored on a high vacuum line overnight

Sources & evidence

ORD record
ord-15f0badee7dd4928ab4224519ad993fa
Source dataset
uspto-grants-2014_05
Patent number
US08729063B2

Reaction notes

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