Abstract
14-disubstituted cyclohexanes with transconfiguration and the N,N'-disubstituted piperazine system are able to function as a nucleus in liquid crystals. These characteristics are described in the case of nine homologous series (1 -9) of corresponding compounds. For several years we have been engaged in our laboratory in the problem of preparing liquid crystalline compounds, which contain a minimum of n-electron systems (*). Transconfigurated 1,4-disubstituted cyclohexane derivatives seem to be of special importance in this field. Trans-l,4-diphenyl-cyclohexane has been diacylated in a one step reaction for the corresponding compounds la-i [ I ] with retention of its configuration. Until now only little attention has been paid to n-acyl groups as terminal residues in liquid crystals. According to our experiences they show a stronger effect in formation of mesophases than the usual n-alkoxy groups, however they are accompanied by the disadvantage of higher melting points.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
