Hydrogen Peroxide → HCID 67998413, compound

Participants

Reaction Conditions

Reaction Steps

LiBHEt3 solution (1 mol/L, 34 mL) was added dropwise to a solution of 3-[(S)-1-(4-bromophenyl)ethyl]-6-(cyclopropylmethyl)-6-[(2-methyloxiran-2-yl)methyl]-1,3-oxazinan-2-one (1.40 g) in tetrahydrofuran (200 mL) at 0° C. The resulting solution was stirred at 2-3° C. for 1.5 h and then at room temperature for another 3 h. 30% aqueous H2O2 solution (30 mL) was added dropwise at 0° C. and the mixture was diluted with tert-butyl methyl ether (200 mL). The mixture was washed with 3% aqueous Na2S2O3 solution and saturated aqueous NaHCO3 solution (4×100 mL) and dried (Na2SO4). The solvent was evaporated and the residue was purified by chromatography on silica gel (petroleum ether/ethyl acetate 1:1→3:1) to afford the title compound; besides, the diastereomer, 3-[(S)-1-(4-bromophenyl)ethyl]-(R)-6-(cyclopropylmethyl)-6-(2-hydroxy-2-methylpropyl)-1,3-oxazinan-2-one was also isolated (0.40 g, 29% yield). Yield: 0.55 g (40% of theory).

Provenance & Evidence