申请人:Hoffmann-La Roche Inc.
公开号:US04595521A1
公开(公告)日:1986-06-17
Compounds of the formula ##STR1## wherein B is --C.tbd.C-- or --CH.sub.2 CH.sub.2 --, R.sup.1 is straight-chain C.sub.1 -C.sub.12 -alkyl and R.sup.2 is straight-chain C.sub.1 -C.sub.12 -alkyl or straight-chain C.sub.1 -C.sub.12 -alkoxy, their manufacture and use in liquid crystalline mixtures are described.
该公式的化合物为##STR1##其中B为--C.tbd.C--或--CH.sub.2 CH.sub.2 --,R.sup.1为直链C.sub.1-C.sub.12-烷基,R.sup.2为直链C.sub.1-C.sub.12-烷基或直链C.sub.1-C.sub.12-烷氧基,描述了它们的制备和在液晶混合物中的用途。