发明授权
- 专利标题： Spiro-indoline oxazine compounds with photochromatic and photosensitizing characteristics and the process for their preparation
- 专利标题（中）： 具有光色素和光敏特征的螺 - 二氢吲嗪恶嗪化合物及其制备方法
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申请号： US842800申请日： 1992-02-27
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公开(公告)号： US5186867A公开(公告)日： 1993-02-16
- 发明人: Graziano Castaldi , Pietro Allegrini , Luciana Crisci , Fiorenzo Renzi
- 申请人： Graziano Castaldi , Pietro Allegrini , Luciana Crisci , Fiorenzo Renzi
- 申请人地址： ITX Palermo
- 专利权人： Enichem Synthesis, S.p.A.
- 当前专利权人： Enichem Synthesis, S.p.A.
- 当前专利权人地址： ITX Palermo
- 优先权： ITX22660A/89 19891212
- 主分类号： C07D498/10
- IPC分类号： C07D498/10 ; C09K9/02 ; G11B7/244
摘要：
New compounds of the spiro-indoline-oxazine class possessing photochromatic and photosensitizing charecteristics are definable by the general formula (I): ##STR1## where the substituents R, R.sup.1 -R.sup.7 and A are as defined in the description. The process for preparing the compounds (I) is described, as is their use as photochromic agents able to confer photochromatic characteristics on the articles in which they are incorporated, and as photosensitizing agents.
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