Acetic Acid → 3-[3-Methyl-2-oxo-4-(3-trifluoromethoxy-phenyl)-piperazin-1-yl]-propionaldehyde

Participants

Reaction Conditions

Reaction Steps

Lithium aluminum hydride solution (1 M in THF (0.46 mL, 0.46 mmol) was added dropwise at −30° C. to a solution of N-methoxy-N-methyl-3-[3-methyl-2-oxo-4-(3-trifluoromethoxy-phenyl)-piperazin-1-yl]-propionamide (180 mg, 0.46 mmol) in THF (10 mL). The reaction mixture was cooled to −75° C., then acetone (0.59 g, 10 mmol) and AcOH (44 mg, 0.93 mmol) were added dropwise. The reaction mixture was then partitioned between TBME and 1 M aq. KHSO4 solution. The organic layer was dried (MgSO4), filtered, and evaporated to afford the title compound (122 mg, 80%). Light yellow oil, MS: 331.1 (M+H)+.

Provenance & Evidence