貝尚還原反應(法語:réduction de Béchamp)指芳香硝基化合物與鐵及稀酸(如鹽酸)及亞鐵鹽作用,被還原為相應的芳香胺。[1][2][3][4]
結構極不同的芳香硝基化合物都能通過此法還原,此法簡單且經濟,且不會還原雙鍵和芳環,因此常用於工業上。生成的四氧化三鐵可作顏料。
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