申请人:TORAY INDUSTRIES, INC.
公开号:EP0358774A1
公开(公告)日:1990-03-21
Novel spirooxazine compounds represented by general formula (A) or (A') are photochromic compounds having excellent resistance to fatigue due to repeated color changes and provide a choice of various hues. In said formulae the a ring represents a member selected from among 5-membered and 6-membered rings each having one nitrogen atom and optionally bound to a benzene or naphthalene ring, wherein the nitrogen atom is bound to a C1-20 alkyl group or the like; The β ring represents a benzene or naphthalene ring; X represents O,S, Se or N-R1 (wherein R' represents H, C1-20 alkyl, etc.): R2 and R3each represents OH, amino, C120 alkoxy, halogen or the like; and k represents an integer of 0 to 2.
or
通式(A)或(A')所代表的新型螺噁嗪化合物是一种光致变色化合物,具有优异的抗反复变色引起的疲劳性能,并提供各种色调的选择。在所述通式中,a 环代表选自 5 元环和 6 元环的成员,每个环都有一个氮原子,并可选择与苯环或萘环结合,其中氮原子与 C1-20 烷基或类似基团结合;β 环代表苯环或萘环;X 代表 O、S、Se 或 N-R1(其中 R' 代表 H、C1-20 烷基等):R2 和 R3 分别代表 OH、氨基、C120 烷氧基、卤素或类似物;以及 k 代表 0 至 2 的整数。
或