4-Methylmorpholine → (4-Bromo-2-chlorophenyl)[4-(3,5-dimethylpyridin-2-yl)piperazin-1-yl]methanone

Participants

Reaction Steps

A mixture of 1-(3,5-dimethylpyridin-2-yl)piperazine hydrochloride (956 mg) described in Preparation Example 80, 4-bromo-2-chlorobenzoic acid (1 g) and N-methylmorpholine (465 μL) was dissolved in a solution of chloroform (6 mL) and methanol (6 mL), 4-(4,6-dimethoxy[1.3.5]triazin-2-yl)-4-methylmorpholinium chloride hydrate (DMT-MM) (1.7 g) was added, and the mixture was stirred at room temperature overnight. Water was added to the reaction mixture, and the mixture was extracted with chloroform. The organic layer was washed with saturated brine, and the solvent was evaporated. The obtained residue was purified by column chromatography (hexane:ethyl acetate) to give the title compound (1.7 g).

Provenance & Evidence