Cesium carbonate → 2-Bromo-4-(cyclopropylmethoxy)pyridine

関与物質

反応条件

反応手順

To a solution of 2-bromopyridin-4-ol (1.6 g, 9.2 mmol) and (bromomethyl)cyclopropane (1.61 g, 12.0 mmol) in DMF (12 mL) in a microwave vial was added cesium carbonate (4.19 g, 12.9 mmol). The vial was sealed and heated in a microwave reactor at 120° C. for 4 h. The reaction mixture was cooled to room temperature, quenched with water and extracted with EtOAc (2×). The combined organics were washed with sat'd NaCl then dried over MgSO4 and concentrated. The residue was purified by SiO2 chromatography (20-50% EtOAc/heptane) to give 1.45 g (69%) of 2-bromo-4-cyclopropylmethoxy-pyridine as a yellow oil.

情報源と証拠