Cesium carbonate → 1-Chloro-4-cyclopropoxy-7-fluoroisoquinoline

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-chloro-7-fluoroisoquinolin-4-ol (1 g, 5.06 mmol) in DMF (5 mL) was added Cs2CO3 (4.95 g, 15.18 mmol) followed by cyclopropyl bromide (1.2 mL, 15.18 mmol) at room temperature. The reaction vessel (Pressure tube) was sealed and heated at 145° C. for 18 h. The reaction mass was diluted with water and extracted with ethyl acetate. The organic layer was dried over anhydrous Na2SO4 and evaporated under reduced pressure to get crude compound. The crude compound was purified by silica gel chromatography to get desired compound (0.24 g, 20%) as a yellow solid.

Provenance & Evidence