申请人:Yokoyama Yasushi
公开号:US20090299080A1
公开(公告)日:2009-12-03
[Problem] To provide a photochromic compound that is rapidly colored upon irradiation with ultraviolet light, and is rapidly decolored rapidly upon heat application after termination of irradiation with ultraviolet light, and to provide a process for producing the same.
[Means for Solving Problems] A photochromic compound represented by general formula (I). R
1
, R
2
and R
3
are each a hydrogen atom; a functional group containing an atom in groups 15-16 of the periodic table; a halogen atom; a hydrocarbon group optionally substituted with said functional group or a halogen atom; or an optionally substituted heterocyclic group. R
1
and R
2
as well as R
2
and R
3
may be bonded to each other to form an optionally substituted carbon or heterocyclic ring. Z is a polymantylidene group. W is a divalent organic group that forms an optionally substituted carbon aromatic or heterocyclic aromatic ring together with the carbon-carbon double bond to which it is bonded.
提供一种光致变色化合物,该化合物在紫外光照射后迅速变色,并在紫外光照射终止后施加热量后迅速褪色的方法,以及提供其制备方法。解决问题的方法是提供一种由通式(I)表示的光致变色化合物。R1、R2和R3分别为氢原子;包含周期表第15-16族中的原子的官能团;卤素原子;可选择地用所述官能团或卤素原子取代的碳氢基团;或可选择地取代的杂环基团。R1和R2以及R2和R3可以相互连接以形成可选择地取代的碳环或杂环。Z为多曼特基团。W为二价有机基团,与其相结合的碳-碳双键形成可选择地取代的碳芳香或杂环芳香环。