Liquid crystal dimers derived from naturally occurring chiral moieties: synthesis and characterization
作者:Channabasaveshwar V. Yelamaggad、Govindaswamy Shanker
DOI:10.1016/j.tet.2008.02.013
日期:2008.4
from natural α-aminoacids (l-valine, l-leucine, and l-isoleucine) have been utilized to prepare three different series of nonsymmetric liquid crystal dimers. Tolane (diphenylacetylene), which is known to possess several promising structural features, has been chosen as the other mesogenic segment to covalently tether with cholesterol through a flexible spacer. In each series, the terminal α-chloro ester