Substituted naphthopyrans

Details Substituted naphthopyrans Substituted naphthopyrans

C - Chemistry, Metallurgy

07

D

C07D 413/02 (2006.01) C07D 209/02 (2006.01) C07D 209/44 (2006.01) C07D 209/82 (2006.01) C07D 231/00 (2006.01) C07D 233/02 (2006.01) C07D 311/92 (2006.01) C07D 401/00 (2006.01) C07D 405/00 (2006.01) C07D 405/04 (2006.01) C07D 409/04 (2006.01) C07D 413/00 (2006.01) C08K 5/1545 (2006.01) C08L 101/00 (2006.01) C09K 9/02 (2006.01) G02B 5/23 (2006.01) G02B 27/00 (2006.01) G02C 7/02 (2006.01) G02C 7/10 (2006.01)

Patent

CA 2293834

Described are novel reversible photochromic 2H-naphtho [1,2-b] pyran compounds, examples of which are compounds having certain substituents at the number 5 carbon atom of the naphtho-portion of the naphthopyran and at the 2- position of the pyran ring. Certain substituents may also be present at the number 6,7,8,9 or 10 carbon atoms of the naphtho portion of the naphthopyran. These compounds may be represented by the following graphic formula: (see formula I) Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.

L'invention a trait à de nouveaux composés photochromiques réversibles de 2H-naphtho [1,2-b] pyran. Parmi ces composés, certains comportent certains substituants au niveau de l'atome de carbone 5 de la partie naphtho du naphtopyran et à la position 2 du noyau pyran. Certain substituants peuvent également se trouver au niveau des atomes de carbone 6, 7, 8, 9 ou 10 de la partie naphtho du naphtopyran. L'invention concerne également des matériaux organiques hôtes contenant ces composés ou revêtus de ceux-ci. Elle porte également des articles tels que des lentilles ophtalmiques ou des diapositives en plastique renfermant ces nouveaux composés de naphtopyran ou leurs combinaisons avec des composés photochromiques complémentaires, notamment des composés du type spiro(indoline).

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