Synthesis and mesomorphic properties of new alkenyltolans

Povilas Adomenas; Ona Adomeniene; Antanas Gleiznys; Kazutoshi Miyazawa

doi:10.1117/12.301292

1 January 1998 Synthesis and mesomorphic properties of new alkenyltolans

Povilas Adomenas, Ona Adomeniene, Antanas Gleiznys, Kazutoshi Miyazawa

Author Affiliations +

Proceedings Volume 3319, Liquid Crystals: Chemistry and Structure; (1998) https://doi.org/10.1117/12.301292
Event: Liquid Crystals, 1997, Zakopane, Poland

Abstract

A number of 1-(4-substituted phenyl)-2-(4-(alken-3-yl- 1)phenyl)ethynes have been synthesized by coupling of 4- substituted phenylacetylenes with new intermediates 1-(4'- iodophenyl)-alkenes-3, which were prepared by a reaction of either allylmagnesium chloride or crotylmagnesium chloride or crotylmagnesium chloride with 4-iodobenzyl bromide. The resulting compounds form mesophases - predominantly nematic - in a wide temperature range and enhance optical birefringence of nematic materials.

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Povilas Adomenas, Ona Adomeniene, Antanas Gleiznys, and Kazutoshi Miyazawa "Synthesis and mesomorphic properties of new alkenyltolans", Proc. SPIE 3319, Liquid Crystals: Chemistry and Structure, (1 January 1998); https://doi.org/10.1117/12.301292

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