通过相转移催化Ｗｉｔｔｉｎｇ反应合成５－（β－对氰基苯乙烯基）水杨醛衍生物（Ⅳ）；利用Ｆｉｓｈｅｒ碱与所得水杨醛衍生物缩合即得到题示化合物（Ⅴ）．化合物（Ⅳ）和（Ⅴ）未见文献报道，它们的结构通过元素分析、紫外可见光谱、红外光谱、氢核磁共振和已知反应等手段得到表征．初步考察螺吡喃单体在各种溶剂中的光致变色行为，结果表明，题示化合物（Ⅴ）在乙醇溶液中有明显光致变色性质． 5- (β-p-Cyanostyryl) salicylaldehyde derivative (IV) is synthesized by a phase transfer catalysis Witting reaction; the title compound (V) is obtained by condensation of the resulting salicylaldehyde derivative with Fisher’s base. Compounds (IV) and (V) have not been reported in the literature, and their structures have been characterized by elemental analysis, UV-Vis, IR, 1H NMR and known reactions. The photochromism of spiropyran monomer in various solvents was preliminary investigated. The results show that the compound (V) has obvious photochromism in ethanol solution.