Synthesis and mesomorphic properties of calamitic malonates and cyanoacetates tethered to 4-cyanobiphenyls

4-Cyano-1,1'-biphenyl derivatives bearing ω-hydroxyalkyl substituents were reacted with methyl 3-chloro-3-oxopropionate or cyanoacetic acid, giving liquid-crystalline linear malonates and cyanoacetates. These compounds formed monotropic nematic phases at 62 °C down to ambient temperature upon c...

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Published inBeilstein journal of organic chemistry Vol. 8; no. 1; pp. 371 - 378
Main Authors Kress, Katharina C, Kaller, Martin, Axenov, Kirill V, Tussetschläger, Stefan, Laschat, Sabine
Format Journal Article
LanguageEnglish
Published Germany Beilstein-Institut 09.03.2012
Subjects
4-cyanobiphenyls
Chemistry
cyanoacetates
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liquid crystals
malonates
nematic
4-cyanobiphenyls
liquid crystals
cyanoacetates
malonates
nematic
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Summary:4-Cyano-1,1'-biphenyl derivatives bearing ω-hydroxyalkyl substituents were reacted with methyl 3-chloro-3-oxopropionate or cyanoacetic acid, giving liquid-crystalline linear malonates and cyanoacetates. These compounds formed monotropic nematic phases at 62 °C down to ambient temperature upon cooling from the isotropic liquid. The mesomorphic properties were investigated by differential scanning calorimetry, polarizing optical microscopy and X-ray diffraction (WAXS).
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1860-5397
1860-5397
DOI:10.3762/bjoc.8.40