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ChemInform Abstract: Novel Discotic Mesogen: Synthesis and Liquid Crystalline Behavior of TAAB (Tetrabenzo[b,f,j,n][1,5,9,13]tetraazacyclohexadecine) Derivatives with Long Alkoxy Chains.

✍ Scribed by Seok Ho Kang; Miok Kim; Hyung-Kun Lee; Yoon-Sok Kang; Wang-Cheol Zin; Kimoon Kim


Publisher
John Wiley and Sons
Year
2010
Weight
33 KB
Volume
30
Category
Article
ISSN
0931-7597

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✦ Synopsis


Novel Discotic Mesogen: Synthesis and Liquid Crystalline Behavior of TAAB (Tetrabenzo[b,f,j,n][1,5,9,13]tetraazacyclohexadecine) Derivatives with Long Alkoxy Chains.

-The self-condensation of dialkoxy-2-aminobenzaldehyde (V), prepared in three steps from the corresponding 2-unsubstituted benzaldehyde (I), in the presence of tetrafluoroboric acid gives the title TAAB-derivatives (VI), which exhibit a hexagonal columnar mesophase over a wide range of temperature. -(KANG,