配法是用亚硫酸使品红溶液还原，若有醛酮类存在时便使之氧化而重新呈现品红本身的洋红色。
It is produced by the reduction of fuchsin by sulfurous acid, and is oxidized by aldehydes and ketones, restoring the magenta color of the fuchsin.
而PO在还原态催化剂上的吸附行为较复杂，可能生成了酮类化合物。
The adsorption of PO on the reduced catalyst is more complicated and ketones may be produced.
合成了一系列的10-苄基吖啶酮类化合物，并探讨了一种用硼氢化钠氢化还原吖啶酮制备10-苄基-9，10-二氢吖啶的简便方法。
A series of 10-benzyl-9-acridones were synthesized and their reduction with NaBH4 to 10-benzy1-9,10-dihydroacridine derivatives was developed.
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