6-Chloro-2-picoline → HCID 57507761, compound

Participants

Reaction Conditions

Reaction Steps

In an argon atmosphere, sodium tert-butoxide, (0.52 g), tris(dibenzylideneacetone)dipalladium (100 mg) and 2-(dicyclohexylphosphino)biphenyl (76 mg) were added to a Tol (22 ml) solution of 2-chloro-6-methylpyridine (0.56 g) and tert-butyl 4-[3-(4-piperidinyl)propyl]-1-piperidinecarboxylate (1.1 g), followed by heating with stirring at 100° C. for 1 hour. This was cooled to room temperature, diluted with EtOAc, and washed with aqueous saturated sodium hydrogencarbonate solution. This was dried over anhydrous magnesium sulfate, the solvent was evaporated, and the resulting residue was purified by silica gel column chromatography (eluent: hexane:EtOAc=10:1 (v/v)) to obtain tert-butyl 4-{3-[1-(6-methyl-2-pyridinyl)-4-piperidyl]propyl}-1-piperidinecarboxylate (1.3 g).

Provenance & Evidence