For subject, the present invention has novel naphthopyran derivatives of formula:
optionally substituted in position(s) 2, 3, 4, 6, 7, 8, 9 or/and 10; the substituent Z in position 5 being of formula —C(R1)(R2)(OR3).
The invention also relates to compositions and (co)polymer matrices containing such derivatives. Said derivatives have interesting photochromic properties.
本发明涉及公式为:在2、3、4、6、7、8、9或/和10位置可选择性地取代的新型
萘并
吡喃衍
生物;在5位的取代基Z的
化学式为—C(R1)(R2)(OR3)。本发明还涉及含有这种衍
生物的组合物和(共)聚合物基质。这些衍
生物具有有趣的光致变色性能。