两种立体构型的1,3,5-三-α-萘基苯的合成

Synthesis of Two Stereoisomers of 1,3,5-tri-a-Naphthyl Benzene

而又令人费解的物理性能。它的熔点很高(】180℃),但是它的玻璃化温度却不高(约70℃),以至当它的熔体受冷凝结为固体时,会自发地形成玻璃体。换言之,尽管它是一个非极性分子,但是它在液态时不仅表现出离奇的粘弹性(Viscoelatici-ty)而且表现出异常的过冷性(Supercooling)。因此它的种种特性引起了高分子物理学家的极大兴趣,并且常常将它作为研究动态力学的模型化合物。在TNB分子中。

Two stereoisomers of 1,3,5-tri-α-naphthyl benzene were synthesized by Adole reaction and Grigard reaction, respectively. Their UV, IR, FD-Mass and NMR spectra were reported. The difference between two stereoisomers in NMR (1H NMR and 13C NMR) was discussed.