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类中的烯胺警报费洛蒙

J W Wheeler, M S Blum

    Science (New York, N.Y.)
    |November 2, 1973
    PubMed
    概括

    松鼠利用下腺中的新型酸作为警报和防御化合物. 这些独特的天然产品在Odontomachus工人中引发了警报行为.

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    Physical Properties of Amines01:26

    Physical Properties of Amines

    Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
    Basicity of Heterocyclic Aromatic Amines01:25

    Basicity of Heterocyclic Aromatic Amines

    Heterocyclic amines, where the N atom is a part of an alicyclic system, are similar in basicity to alkylamines. Interestingly, the heterocyclic amine having a nitrogen atom as part of an aromatic ring has much less basicity than its corresponding alicyclic counterpart. For this reason, as presented in Figure 1, piperidine (pKb = 2.8) is significantly more basic than pyridine (pKb = 8.8).