淡江大學機構典藏:Item 987654321/25172
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    题名: Rapid synthesis of new discotic liquid crystal based on Diquinoxalino[2,3-a:2’3’-c]phenazine Containing Hexakis(alkoxy) side arms
    作者: 徐秀福;Hsu, Hsiu-fu;Ong, Chi Wi;Liao, Su-Chih;Chang, Tsu Hsing
    贡献者: 淡江大學化學學系
    日期: 2003-02-10
    上传时间: 2009-12-01
    出版者: Elsevier
    摘要: The condensation of 1,2-bisalkoxy-4,5-diaminobenzene 2a–e derivatives with freshly prepared hexaketocyclohexane give hexakis(alkoxy)diquinoxalino[2,3-a:2′,3′-c]phenazines in good yield. DSC and polarization microscopy showed HATOC6 has both the crystalline (K) to mesophase (M) and the mesophase (M) to isotropic (I) phase transitions. Importantly, the alkoxy substituted compound synthesized showed an M–I transition because of greater stability, whereas the reported alkyl-thiol decomposes after the mesophase.
    關聯: Tetrahedron Letters 44(7), pp.1477-1480
    DOI: 10.1016/S0040-4039(02)02862-9
    显示于类别:[化學學系暨研究所] 期刊論文

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