D. Taton et al., SYNTHESIS OF RACEMIC AND OPTICALLY-ACTIVE GLYCIDIC ETHERS, PRECURSORSOF LIQUID-CRYSTALLINE POLYETHERS, Chirality, 10(9), 1998, pp. 779-785
A series of racemic and optically active oxiranes, bearing mesogenic g
roups, precursors of liquid crystalline polyethers, has been synthesiz
ed from epichlorohydrin or glycidol. The enantiomeric excess of the op
tically active oxiranes has been determined by chiral stationary phase
HPLC. Compounds bearing 4-cyanobiphenyl me sogenic group exhibit mono
tropic liquid crystalline behavior. A transfer of chirality to the mes
ophase has been observed for the optically active oxiranes, which pres
ent a cholesteric phase. (C) 1998 Wiley-Liss, Inc.