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

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.

Citation Download Citation

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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