作者:Zhen Wang、Qinghua Meng、Zhihui Zhang、Dingliang Fu、Wanbin Zhang
DOI:10.1016/j.tet.2011.01.078
日期:2011.3
of 3,3-diaryl-3H-naphtho[2,1-b]pyran compounds with functional substituents at the 5- and 6-positions of the naphthopyran skeleton and the para positions at the 3-aryl moieties were prepared through condensation reactions between 2-naphthol derivatives and 1,1-diarylprop-2-yn-1-ol derivatives. The chemical structures of the compounds were confirmed by NMR and MS. The crystal structure of 3,3-diphen
制备了一组在萘并吡喃骨架的5-位和6-位以及3-芳基部分的对位具有功能性取代基的3,3-二芳基-3 H-萘[2,1-b]吡喃化合物2-萘酚衍生物和1,1-二芳基丙-2-yn-1-ol衍生物之间的缩合反应。化合物的化学结构通过NMR和MS确认。确定了3,3-二苯基-6-吗啉代-3 H-萘[2,1-b]吡喃(4b)的晶体结构,并讨论了吡喃亚结构与光致变色的关系。还研究了光致变色性质,并且将有色形式的脱色动力学拟合至双指数模型。在这些化合物中,4b 由于有色形式的ΔOD大,被认为是最好的一种,这是光致变色材料中最重要的特性之一。