engleski

Synthesis of novel chiral dopants based on optically active p-substituted mandelic acids

Novel esters of optically active p-substituted mandelic acids (+)-1 and (+)-2 were prepared by a convergent synthetic strategy in high enantiomeric excess (99% ee). The esters (+)-1 and (+)-2 induce helical macrostructures in the mesophases of achiral liquid-crystal materials, although neither exhibits mesorphism on its own.

Banana-shaped molecules ; Liquid-crystals ; Cholesteric mesophases ; Derivatives ; Induction

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