SYNTHESIS, CHARACTERIZATION, AND STUDY OF THE CRYSTALLINE PROPERTIES OF ASTERISM COMPOUNDS

Dardaa A. Ibrahim, Hanaa K. Salih

Abstract

This study involves the synthesis of asterism compounds (D1-D6) through the reaction of 1 mole ‎of ‎benzene 1,3,5-triol with 3 moles of prepared pentacyclic ring ‎ester derivatives, dissolved in absolute ethanol. The validity of the compound structures was ‎confirmed using physical and spectroscopic methods such as infrared spectroscopy, and proton ‎nuclear magnetic resonance spectroscopy. Additionally, melting points and purity were determined, and reaction ‎progress was monitored by Thin-Layer Chromatography (TLC). The liquid crystal phases of certain prepared compounds were examined using a polarizing ‎optical microscope (POM).

https://doi.org/10.32737/2221-8688-2024-4-478-488