Photochromatic and thermochromatic spiro-oxazepin-oxazine compounds and
申请人:Enichem Synthesis, S.p.A.
公开号:US05055576A1
公开(公告)日:1991-10-08
New photochromatic and thermochromatic compounds of the spiro-oxazepin-oxazine class are definable by the general formula (I): ##STR1## where the substituents R and R.sub.1 -R.sub.12 are as defined in the description. The process for the preparation of the compounds (I) is described, as is their use as photochromatic and thermochromatic agents.
Photochromatic and thermochromatic spiro-oxazepin-oxazine compounds and the process for their preparation
申请人:ENICHEM SYNTHESIS S.p.A.
公开号:EP0432839A2
公开(公告)日:1991-06-19
New photochromatic and thermochromatic compounds of the spiro-oxazepin-oxazine class are definable by the general formula (I):
where the substituents R and R₁-R₁₂ are as defined in the description.
The process for the preparation of the compounds (I) is described, as is their use as photochromatic and thermochromatic agents.
螺氮杂环嗪类的新型光致变色和热致变色化合物可通过通式 (I) 确定:
其中取代基 R 和 R₁-R₁₂如描述中所定义。
本文介绍了化合物 (I) 的制备过程,以及它们作为光致变色剂和热致变色剂的用途。