荧光增白剂4,4′-二(4-磺酸钠苯乙烯基)二苯甲酮的合成

Synthesis of Fluorescent Brightener 4,4′-Bis(4-sodium sulfonate styryl) Benzophenone

用Heck反应合成了4,4′-二(4-磺酸钠苯乙烯基)二苯甲酮.对Heck反应条件进行了改进,使用壳聚糖负载钯为催化剂并考察了催化剂的回收再利用情况.通过研究影响该反应的各种因素,如反应时间、反应温度、原料配比等,优化了实验条件,得到了较好的结果.

Fluorescent brightener 4,4 ′-bis（4-sodium sulfonate styryl） benzophenone was synthesized by using Heck reaction.The title product was obtained by modifying conditions for Heck reaction and adopting chitosan supported palladium as catalyst.The recycle of the catalyst was examined,and various factors affecting the reaction,including reaction time,reaction temperature and ratio of raw materials,were investigated.Moreover,the optimal reaction condition was established.