Potassium Iodide → 1040718-40-8

関与物質

反応条件

反応手順

To a cylindrical, jacketed 3 L reactor equipped with nitrogen inerting, agitator, condenser/distillation head, and temperature control, 5-bromo-pentanoic acid [5-(4-methoxy-phenyl)-1H-pyrazol-3-yl]amide (0.15 kg, 0.426 mol), potassium carbonate (0.059 kg, 0.426 mol), potassium iodide (0.071 kg, 0.426 mol), and acetone (1.18 kg, 1.5 L) were added (at 20° C.) to form a white mixture. The mixture was stirred (235 rpm) at 25-30° C. for a minimum of 15 min. N-acetylhomopiperazine (0.062 kg, 0.057 L, 0.434 mol) was added via addition funnel to the reactor over a minimum of 45 min., maintaining the temperature in the range of 25-30° C. The addition funnel was rinsed with 0.05 L acetone. A white mixture persisted. The mixture was stirred (235 rpm) in the range of 25-30° C. for a minimum of 16 h, forming a white/yellow mixture. The reaction progress was monitored by HPLC and was considered complete when there was ≦2% of the starting material (bromopyrazole) and ≦2% of the iodopyrazole present.

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