摘要:
The synthesis of enantiomerically pure bridged biphenyl compounds, (-)-(R)-3,9-bis(4-(dodecyloxy)benzoyloxy)-5,7-dihydro-1, 11-dimethyldibenzo[c,e]thiepine, 13, and (-)-(R)-3,9-bis(4-(dodecyloxy)benzoyloxy)-5,7-dihydro-1,11 dioxide, 14, is described. This is the first report of smectic C* mesophases with a rigid twisted biphenyl core and axial chirality.