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New mesomorphic benzothiazol derivatives：Synthesis and characterization

Teck-Ming Koh ,  Sie-Tiong Ha ,  Guan-Yeow Yeap ,  Hong-Cheu Lin

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Citation:  Teck-Ming Koh, Sie-Tiong Ha, Guan-Yeow Yeap, Hong-Cheu Lin. New mesomorphic benzothiazol derivatives：Synthesis and characterization[J]. Chinese Chemical Letters, 2013, 24(10): 926-928. shu

New mesomorphic benzothiazol derivatives：Synthesis and characterization

    • 通讯作者: Sie-Tiong Ha,
摘要: In this paper, the synthesis of new mesomorphic benzothiazolyl derivatives, 6-ethoxy-2-[4-(4-alkyloxybenzoyloxy)benzylidenamino]benzothiazoles, is presented. The structures of the title compounds were elucidated using spectroscopic techniques, such as FT-IR, NMR (1H and 13C), elemental analysis and EI-MS. The mesomorphic behaviours of these compounds were determined by differential scanning calorimetric and polarizing optical microscopic techniques. Compounds exhibited nematic and tilted smectic phases upon heating from crystal phase. An obvious odd-even effect was observed in this homologous series.

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  • 收稿日期:  2013-04-12
  • 网络出版日期:  2013-05-29
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