3,3-二甲基-N-乙基-5-氯-6’-溴-8’-硝基苯并螺吡喃的合成

Synthesis of 3,3-dimethyl-N-ethyl-5-chloro-6'-bromo-8'-nitro-indolinospiropyran

从小分子出发,合成一种新的螺吡喃,3,3-二甲基-N-乙基-5-氯-6’-溴-8’-硝基苯并螺吡喃。通过元素分析、红外光谱、核磁共振等手段对合成的部分中间体和目标产物的结构进行表征,并应用紫外-可见吸收光谱对其光致变色性进行了研究。

With small molecules, 3,3-dimethyl-N-ethyl-5-chloro-6 ＇-bromo-8＇-nitro-indolinospiropyran,a brand new spiropyran, is successfully synthesized. Through elemental analysis, IR and 1HNMR, we identify the structures of the intermediates and the final compound, and study the photochromic properties by UV-Vis absorbance spectra.