p-Xylyl bromide → HCID 17978852, compound

Participants

Reaction Steps

1-Hydroxy-1-(4-morpholinophenyl)-butan-2-one, one equivalent of 4-methylphenylmethyl bromide and 1.2 equivalent of sodium hydroxide are suspended in dimethyl sulfoxide and the resulting mixture is stirred at room temperature for 24 hours. The reaction mixture is diluted with the same amount of water and extracted several times with dichloromethane. The combined organic extracts are dried over sodium sulfate and evaporated to give crude 2-hydroxy-2-(4-morpholinophenyl)-1-(4-methylphenyl)-pentan-3-one as a viscous oil. The compound is purified by chromatography on silica gel (eluant: hexane/ethyl acetate 9:1). Pure 2-hydroxy-2-(4-morpholinophenyl)-1-(4-methylphenyl)-pentan-3-one is thus obtained as colorless crystals with a melting point of 160° C.

Provenance & Evidence