新席夫碱N-(4-(4- N-烷氧基苯甲酰氧基)-2-羟基苄基)-4-氰基苯胺、4-羟基苯胺、4-硫代苯胺和4-硝基苯胺的合成及热致性

S. Ha, G. Yeap, P. Boey
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引用次数: 1

摘要

制备了一系列细长的希夫碱酯,其末端基团为六烷基链,末端为3个芳香环,另一端为各种R取代基(R = CN、OH、SH和NO2),并通过物理测量证实了其结构。通过差示扫描量热法和偏光显微镜研究了这些化合物的热致性。热数据表明,所有这些化合物都表现出亚晶性质。含有R = OH、SH和NO2的化合物表现为向列相,而含有氰基取代基的化合物表现为异向相。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis and Thermotropic Properties of Some New Schiff Bases, N-(4-(4-n-Alkanoyloxybenzoyloxy)-2- Hydroxybenzylidene)-4-Cyano-, 4-Hydroxy-, 4-Thio- and 4-Nitroanilines
A series of elongated Schiff base esters containing three aromatic rings with hexadecanoyl chain as one of the terminal group and various R substituents (R = CN, OH, SH, and NO2) at the other end of molecule were prepared, and their structures were confirmed via physical measurement. The thermotropic properties of these compounds were investigated via differential scanning calorimetry and polarizing optical microscopy. The thermal data indicate that all of these compounds exhibit mesomorphic properties. Whilst compounds with R = OH, SH and NO2 show nematic phases, compound containing cyano substituent are smectogenic in nature.
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来源期刊
E-journal of Chemistry
E-journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-
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