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The synthesis and mesomorphism of the first examples of ‘discotic liquid crystal pentamers’ are reported. Structural characterization of these difunctional pentamers has been achieved by FTIR, NMR, and elemental analysis. The mesophase behavior exhibited by these ‘star-shaped’ molecules has been studied by polarizing optical microscopy and differential scanning calorimetry. The columnar hexagonal...
An efficient, simple, rapid and economic microwave-assisted synthesis of rufigallol, a molecule of both biological and physical interest, is reported. The acid-catalyzed self-condensation of gallic acid under microwave irradiation produces rufigallol in high yield within 90s. Alkylation of rufigallol with branched-chain alkyl halides under microwave irradiation provides novel room-temperature discotic...
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