有 hydrazone 联合起来的一系列 naphthopyrans (8a8m ) ,被 1H NMR, 13C NMR,红外和 HRMS 综合并且描绘。对光反应变色性质在答案和聚合物在连续照耀,特别地到疲劳抵抗的问候和有颜色的开的形式的一生下面被调查。结果证明这些混合物有两个好对光反应变色性质和高疲劳抵抗。详细研究显示出那代表性的复合 8d ( 3,3-di-4-methoxybenzoic 酸methylenehydrazino-[ 3H ] -naphtho [ 2,1-b ] pyran )在 THF 答案,处于稳固的状态,并且在聚合物的有的好对光反应变色性质,并且与已知的 naphthopyrans 相比在开的形式的系列展出了重要 bathochromic 移动 9 (3,3-diphenyl-[ 3H ]-naphtho[2,1-b]pyran)。在另一方面,目标混合物的更高的融化点为通过热融化方法的聚合物电影准备是有希望的。
A series of naphthopyrans with hydrazone unit (8a-8m), were synthesized and characterized by 1H NMR, 13C NMR, IR and HRMS. The photochromic properties were investigated under continuous irradiation, in particular re- gard to the fatigue resistance and the lifetime of the colored open form in solution and polymers. The results showed that these compounds had both good photochromic properties and high fatigue resistance. Detailed studies showed that representative compound 8d (3,3-di-4-methoxybenzoic acid methylenehydrazino-[3H]-naphtho [2,1-b]pyran) had good photochromic properties in THF solution, in solid state, and in polymers, and exhibited a significant ba- thochromic shift in the spectra of the open forms compared to known naphthopyrans 9 (3,3-diphenyl-[3H]- naphtho[2,1-b]pyran). On the other hand, the higher melting points of target compounds are promising for the polymer film preparation through hot-melt method.