Potassium Carbonate → HCID 66781621, compound

Participants

Reaction Steps

The compound (24) was dissolved in a mixed solvent of toluene (150 ml) and isopropyl alcohol (150 ml), and then Pd/C (2.35 g) and potassium carbonate (0.40 g) were added thereto. The mixture was stirred at room temperature under a hydrogen atmosphere until hydrogen absorption had ceased. After the reaction had been completed, Pd/C was removed and then the solvent was distilled off. The residue was purified with a fractional operation by means of column chromatography using a mixed solvent of toluene and ethyl acetate (toluene:ethyl acetate=9:1 by volume) as an eluent and silica gel as a stationary phase powder, and dried, giving 31.4 g of 8-(4-(4-(4-ethoxycyclohexyl)-2-fluorophenyl)cyclohexyl)-1,4-dioxaspiro[4,5]decane (25). The yield based on the compound (24) was 66.4%.

Provenance & Evidence