Issue 7, 2000

Abstract

A series of 4′-substituted biphenyl esters of 5-carboxy-2-hexyl-2,3-dihydro-1H-isoindole-1,3-dione (N-hexyltrimellitimide) has been synthesised. The ester imides obtained were treated with Lawesson's reagent, and the resulting monothio- and dithiotrimellitimides were purified by column chromatography. A majority of the products showed interesting thermotropic properties. For instance, 5-(biphenyl-4-yloxycarbonyl)-2-hexyl-2,3-dihydro-1H-isoindole-1,3-dithione showed a monotropic transition at 70 °C, whereas its dioxygen analogue 5-(biphenyl-4-yloxycarbonyl)-2-hexyl-2,3-dihydro-1H-isoindole-1,3-dione was not a mesomorphic compound.

Supplementary files

Article information

Article type
Paper
Submitted
25 Jan 2000
Accepted
17 Apr 2000
First published
05 Jun 2000

J. Mater. Chem., 2000,10, 1527-1531

Synthesis and liquid crystalline properties of biphenyl esters of monothio- and dithiotrimellitimides

E. Białecka-Florjańczyk and A. Orzeszko, J. Mater. Chem., 2000, 10, 1527 DOI: 10.1039/B000686F

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