【摘要】 研究了一种吲哚啉螺苯并吡喃类光致变色化合物的合成，优选了从3-甲氧基水杨酸制备中间体3-甲氧基-5-硝基水杨醛的条件．优化后的反应条件温和，易于控制，产率可提高到69．4％．本文尝试在醋酸介质中，用浓硝酸对叫唤批螺苯并吹响化合物直接硝化，以制取其5′-硝基取代物，此方法未见文献报道，反应温和，产品纯净，产率可达到77．8％．对合成过程中的各产物，均进行了元素分析和IR、1H－NMR等谱图鉴定．更多还原

【Abstract】 The synthesis of 5’-nitro-indolinespirobenzopyrans was studied. The batter condition for synthesizing the intermediate, 3-methoxyl-5-nitro salicylaldehyde, from 3-methoxysalicylaldehyde was studied by its orthogonal experiment. Particularly, one of 5’-nitro-indolinespirobenzopyrans was synthesized successfully by nitrating the indoline spirobenzopyrans directly. All products were identified with elementary analysis IR.更多还原