Potassium Carbonate → Benzyl 4-({3-[hydroxy(diphenyl)methyl]-1H-1,2,4-triazol-1-yl}methyl)piperidine-1-carboxylate

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Reaction Conditions

Reaction Steps

Benzyl 4-(bromomethyl)piperidine-1-carboxylate (5 g, 16 mmol) was dissolved in dimethylformamide (40 ml) and diphenyl-(1H-[1,2,4]triazol-3-yl)-methanol (Tetrahedron: Asymmetry, 8(9), 1491-1500; 1997; 3.35 g, 13.65 mmol) added, followed by potassium carbonate (3.69 g, 26.7 mmol). After stirring at 70° C. for 18 hours the solvent was removed in vacuo, and the residue partitioned between ethyl acetate (150 ml) and water (150 mL). The organic layer was separated, dried over magnesium sulphate, filtered and the solvent removed in vacuo to furnish the title compound as a white solid in 81% yield, 5.2 g.

Provenance & Evidence