Five Schiff bases were prepared from piperonal and diamines by condensation reaction.
成新的双-胡椒醛缩二胺类席夫碱
。
Five Schiff bases were prepared from piperonal and diamines by condensation reaction.
成新的双-胡椒醛缩二胺类席夫碱。
声明：以上例
、词性分类均
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