对氟苯乙烯的合成

Synthesis of p -Fluorostyrene

研究了以氟苯为原料 ,经乙酰化、还原、脱水等步骤合成对氟苯乙烯的方法。结果表明 ,以氟苯为起始原料 ,在无水三氯化铝催化下 ,用乙酸酐进行乙酰化 ,然后用硼氢化钾还原 ,再以硫酸氢钾催化脱水 ,工艺路线简单 ,反应条件温和 ,操作易控制 ,三步反应的总产率达 70 %

A method for preparing p fluorostyrene from fluorobenzene by reaction of acetylation,reduction and dehydration was reported in this paper.Fluorobenzene was acetylized by acetic acid anhydride under the catalytic action of anhydrous aluminium chloride,and was followed by reduction with potassium tetrahydroborate and dehydrated in the presence of potassium hydrogen sulfate; p fluorostyrene was obtained with a total yield of 70%. [