Meerwein-Ponnorf反應是一種化學反應。
醛或酮與異丙醇鋁在異丙醇溶液中加熱,還原成相應的醇,而異丙醇則氧化為丙酮,將生成的丙酮由平衡物中慢慢蒸出來,使反應朝產物方向進行。這個反應相當於Oppenauer氧化的逆向反應。
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參見:Oppenauer氧化