申请人:KANTO KAGAKU KABUSHIKI KAISHA
公开号:US20200131193A1
公开(公告)日:2020-04-30
[Problem] A problem is presented in that conventional photochromic compounds cannot be considered adequate in terms of the colorizing/decolorizing rate and durability, and the production process therefore has many steps. The present invention provides an industrially applicable photochromic compound that has both a rapid colorizing/decolorizing reaction and high durability and can also be synthesized at a low cost.
[Solution] This compound is characterized in that etheric oxygen atoms are bonded to the carbon atoms at position 1 of a pyranoquinazoline (8H-pyrano[3,2-f]quinazoline) skeleton and position 10 of a naphthopyran (3H-naphtho[2,1-b]pyran) skeleton, said compound having photochromic properties and being a photochromic compound that has both a rapid colorizing/decolorizing reaction and high durability. Also provided is an industrially applicable photochromic compound that can be synthesized at a low cost.
[问题] 传统光致变色化合物在着色/褪色速率和耐久性方面被认为不够充分,因此生产过程步骤繁多。本发明提供了一种工业上可应用的光致变色化合物,该化合物具有快速的着色/褪色反应和高耐久性,并且能够以低成本合成。[解决方案] 该化合物特征在于,吡喃喹唑啉(8H-吡喃[3,2-f]喹唑啉)骨架的1位碳原子和萘并吡喃(3H-萘并[2,1-b]吡喃)骨架的10位碳原子上连接有醚氧原子,该化合物具有光致变色特性,是一种具有快速着色/褪色反应和高耐久性的光致变色化合物。同时还提供了一种工业上可应用的、能够以低成本合成的光致变色化合物。