Butyrophenone → HCID 11819186, compound

Participants

Reaction Conditions

Reaction Steps

Benzeneruthenium(II) chloride dimer (1.0 mg, 2 μmol, 0.5 mol %) and a chiral ligand (M=Ru, R=t-Bu, Ar=3,5-t-Bu2C6H3—, 2.6 μmol, 0.65 mol %) were dissolved in i-propanol (3 mL) under nitrogen atmosphere, and then heated and stirred for 1 h at 85° C. After the mixture was cooled to room temperature, 1-phenylbutan-1-one (0.4 mmol), i-propanol (2 mL) and a solution of sodium hydroxide in i-propanol (0.4 mL, 0.4 M) were added thereto. Thereafter, the reaction system were placed in an autoclave, and stirred for 12 h under H2 (10 atm) at 40° C. The solvent was removed under reduced pressure, and the resultants were separated by column chromatography (silica gel column; eluent:ethyl acetate/petroleum ether=1/8). Accordingly, pure 1-phenylbutynol was obtained and the ee value (ee=99.2%) was measured by GC analysis.

Provenance & Evidence