Ammonium Chloride → 8-Methyl-1,4-dioxaspiro(4.5)decan-8-ol

Participants

Reaction Steps

1,4-cyclohexandione mono-ethylene ketal (1.0 g, 6.4 mmol) was dissolved in THF (30 ml), followed by addition of MeMgCl (3.0M solution in THF, 2.6 ml, 7.7 mmol) at 0° C., and then the resulting mixture was stirred at room temperature under nitrogen stream for 3 hours. A saturated aqueous ammonium chloride solution was added to the resulting reaction liquid, followed by extraction with MC (50 ml×2). The organic layer was dried over anhydrous sodium sulfate, followed by filtration and concentration, and then the residue thus obtained was subjected to MPLC (50% EtOAc/Hexanes), to obtain 654 mg of white solid (59%).

Provenance & Evidence