Photochromic materials comprising indeno-fused naphthopyrans having substituents comprising a 4-fluorophenyl group and a 4-aminophenyl group bonded to the 3-position of the indeno-fused naphthopyran are disclosed. The photochromic materials may exhibit faster fade rates as compared to similar indeno-fused naphthopyrans without a 4-fluorophenyl group and a 4-aminophenyl group bonded to the 3-position of the indeno-fused naphthopyran. Substituted 2-propyn-1-ols utilized for the synthesis of the indeno-fused naphthopyrans disclosed herein are disclosed. Photochromic compositions and articles, such as optical elements, incorporating the photochromic materials disclosed herein are also disclosed.
本文披露了一种包含取代基的
吲哚并
萘噻吩的光致变色材料,该取代基包括与
吲哚并
萘噻吩的3位键合的4-
氟苯基和4-
氨基苯基。与没有4-
氟苯基和4-
氨基苯基键合到
吲哚并
萘噻吩的类似
吲哚并
萘噻吩相比,光致变色材料可能表现出更快的褪色速率。本文还披露了用于合成本文所披露的
吲哚并
萘噻吩的取代
2-丙炔-1-醇。本文还披露了包含本文所披露的光致变色材料的光致变色组合物和物品,例如光学元件。