利用六氯乙烷合成含氯类液晶单体  

Synthesis of Chlorinated Liquid Crystals Using Hexachloroethane

作　　者：员国良 崔红梅 刘文菊 梁立志 张晶梅 张芳苗 

机构地区：[1]石家庄诚志永华显示材料有限公司,河北石家庄050091

出　　处：《液晶与显示》2011年第4期432-436,共5页Chinese Journal of Liquid Crystals and Displays

基　　金：国家"863"计划资助项目(No.2008AA03A304)

摘　　要：提出了一种利用六氯乙烷给取代芳烃引入氯原子的方法。将取代芳烃在低温下制成锂(钾)试剂,再与六氯乙烷反应,可以得到较高转化率的氯代芳烃。分别对邻位无氟原子取代基、单氟原子取代基、双氟原子取代基三类中间体进行了合成方法研究。通过元素分析、质谱等对产物结构进行了确认和表征。该方法具有反应收率高、产品纯度好、成本较低等特点。A new synthetic method to introduce chlorine atoms m atutic rings by using hexachloroethane is proposed in this paper. At low temperature, the lithium （potassium） reagent is made from substituted aromatics. Then, this reagent reacts with hexachloroethane to obtain chlorinated aromatic hydrocarbons with high conversion rate. In this way, the synthesis of three different intermediates, which are ortho-no-fluorine atoms substituted, one fluorine atom substituent, double fluorine atom substituent, are studied. The products are characterized by mass and element analysis. The advantages of this method are high yield, good purity and lower cost, etc.

关 键 词：六氯乙烷 液晶 含氯液晶 丁基锂 

分 类 号：O753.2[理学—晶体学]