申请人:Merck Patent Gesellschaft mit beschrankter Haftung
公开号:US04537698A1
公开(公告)日:1985-08-27
New piperidine derivatives ##STR1## in which R.sup.1 and R.sup.2 each independently is alkyl or alkoxy each of 1 to 10 C atoms, --Y--Z, F, Cl, Br or CN, and the radical R.sup.1 can also be H, Y is --CO--O--, --O--CO or a single bond, Z is --Q--R.sup.3 or alkyl having 1-10 C atoms, Q is 1,4-phenylene or 1,4-cyclohexylene, R.sup.3 is alkyl having 1-10 C atoms, F or CN, and A is 1,4-cyclohexylene or 1,3-dioxane-2,5-diyl, and their acid addition salts, can be used as components of dielectrics for electro-optical display elements.
新的哌啶衍生物##STR1## 其中R.sup.1和R.sup.2各自独立地是1至10个碳原子的烷基或烷氧基,-Y-Z,F,Cl,Br或CN,而基团R.sup.1也可以是H,Y是--CO--O--,--O--CO或单键,Z是--Q--R.sup.3或具有1-10个C原子的烷基,Q是1,4-苯撑基或1,4-环己撑基,R.sup.3是具有1-10个C原子的烷基,F或CN,而A是1,4-环己撑基或1,3-二氧杂环己烷-2,5-二基,并且它们的酸加成盐可以用作电光显示元件的介质组分。