Preparation of Sigmatropic 2-Acyloxy-5-perfluoroalkoxytropones : New Monocyclic Troponoid Liquid Crystals with an Enantiotropic Smectic A Phase
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Monocyclic sigmatropic troponoid liquid crystals with a 2-(perfluoroalkyl)ethoxyl group at C-5 showed an enantiotropic smectic A phase. They have higher melting and clearing points than the corresponding non-fluorinated compounds, which exhibit a monotropic smectic A phase.
- Chemistry Letters
Chemistry Letters 1997(10), 1009-1010, 1997-10
The Chemical Society of Japan