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本文研究了本腈在付氏催化剂作用下的三聚化反应。实验发现苯腈最初与一系列金属卤化物(MXn)形成有色的络合物结晶,在一定条件下,它进一步进行环化三聚反应生成环三聚体,2,4,6——三苯基均三嗪(I)。(I)的收率主要决定于催化剂与苯腈的克分子比以及反应温度。通过各种物理和化学方法对(I)的分子结构进行了鉴定。作者尚根据环化三聚反应中所形成的纳合物(PhCN)m·MXn的结构讨论了苯晶环化三聚反应机理。
In this paper, the nitrile trimerization under the action of Fu’s catalyst was studied. Benzene nitrile was initially found to form a colored complex with a series of metal halides (MXn). Under certain conditions, it further undergoes cyclization and trimerization to form a cyclic trimer, 2,4,6-triphenylene Base triazine (I). The yield of (I) depends mainly on the molar ratio of catalyst to benzonitrile and the reaction temperature. The molecular structure of (I) was identified by various physical and chemical methods. The authors also discuss the mechanism of the cyclization of benzene on the basis of the structure of the nanocomposite (PhCN) m MXn formed in the cyclization trimerization reaction.