Water → HCID 24780777, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 114 mg (0.25 mmol) of N-methoxy-N-methyl-2-(4-{2-[4-(3-trifluoromethylphenyl)piperazin-1-yl]ethyl}-cyclohexylidene)acetamide in 5 mL of dry tetrahydrofuran cooled to 0° C. is added 0.2 mL (0.50 mmol) of a 22% methylmagnesium chloride solution in tetrahydrofuran. The mixture is warmed up to 5° C. and stirred for 90 minutes. Hydrolysis is performed by slow addition of 3 mL of water. The product is extracted 3 times with ethyl acetate. The organic phases are combined, dried over magnesium sulfate, filtered and concentrated under reduced pressure. The obtained residue is purified over 5 g of silica gel (eluant dichloromethane/methanol 95/5) to give 43 mg (44%) of 1-(4-{2-[4-(3-trifluoromethylphenyl)piperazin-1-yl]ethyl}cyclohexylidene)propan-2-one as an oil.

Provenance & Evidence