Synthesis and helical twisting power of optically active 2-methylchroman-2-carboxylic acid derivatives as new chiral dopants for nematic liquid crystals

摘要

Optically active 2-methylchroman-2-carboxylic acid derivatives as new chiral dopants for nematic liquid crystals were prepared from optically active 6-benzyloxy-2-methylchroman-2-carboxylic acid, which was newly synthesized and resolved by diastereomeric salt formation method, The helical twisting power of the dopants was determined and the relationship with their structures were studied. [References: 7]