作者:Roger Brettle、David A. Dunmur、Louise D. Farrand、Charles M. Marson
DOI:10.1039/jm9960600747
日期:——
A series of 3,6-substituted cyclohex-2-en-l-ones have been prepared by an efficient convergent Robinson-type annulation route. The cyclohex-2-en-l-one ring is the basis of a novel mesogenic core and when substituted at the 6-position provides a chiral centre, which is adjacent to a strong transverse dipole moment. This system has the advantage that both of the two main features required for new electro-optical applications (a dipole for switching and a chiral centre to reduce the symmetry) are located in the molecular core. The synthesis and mesogenic properties of these novel enones are reported.
通过一种高效的罗宾逊式环化聚合路线,我们制备出了一系列 3,6 取代的环己-2-烯-酮。环己-2-烯-l-酮环是一种新型介源核心的基础,当在 6 位被取代时,可提供一个手性中心,该中心邻近一个强横向偶极矩。该体系的优势在于,新的电光应用所需的两个主要特征(用于开关的偶极子和降低对称性的手性中心)都位于分子核心。本文报告了这些新型烯酮的合成和介原性质。