Citation:
HOU Guang-Ming, TANG Hong, XU Shou-Yi, ZHANG Xing. Synthesis of Liquid Crystals of Laterally Difluorinated Esters[J]. Chinese Journal of Applied Chemistry,
;2004, 21(8): 826-828.
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Difluoro-4-alkoxyphenols were prepared from 2,3-difluoro-4-alkoxy bromobenzene with Mg, B(OCH3)3 and H2O2 at -30℃. Three ester liquid crystal compounds were synthesized by their esterification with 4-(trans-4'-alkylohexyl) compounds. The structures of the liquid crystal compounds were confirmed by IR, 1H NMR, MS and elemental analysis and the phase transition temperatures were measured by DSC.
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Keywords:
- fluorine substitution,
- synthesis,
- ester liquid crystal
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