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Photochromic Dichroic Naphthopyrans and Optical Articles Containing them

Aiken, Stuart, Gabbutt, Christopher D., Heron, B. Mark, Kershaw, Christopher, Smith, Nicola Jane and Cano, Jean Paul (2009) Photochromic Dichroic Naphthopyrans and Optical Articles Containing them. EP/2098520.

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Abstract

(EN) A naphthopyran compound represented by the formulae (I) to (IV) wherein : � m 1 , m 2 , p, q are each an integer comprised from 0 to 4 or 5 inclusive; � R 1 , R 2 and R 4 , represent a group selected from halogen, H, -R a , aryl, -OH, -OR a , -SH, -SR a , -NH 2 , -NR a R a1 , -NR b R c , -NR a1 COR a , -NR a1 CO(aryl), -NR a1 aryl, -N-aryl 2 , -N(aryl)CO(aryl), -CO-R a , -CO 2 R a1 , -OC(O)-R d , and - X-(R e )-Y, and linear or branched (C 1 -C 18 ) perfluoroalkyl group, wherein R a , R a1 , R b , R c , X, Y, R e , R d are as defined into the description; � Z 1 represent a group selected from: wherein R 3 , J and n are as defined into the description; � R 5 , Z 2 , Z 3 are as defined into the description; � Z 4 represent a group selected from: o wherein R 3 , J and n are as defined hereinbefore; � with the provision that for compounds of formula (II) when Z 1 represents a group then Z 3 is not a hydrogen.

Item Type: Patent
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Schools: School of Applied Sciences
Related URLs:
Depositing User: Sara Taylor
Date Deposited: 03 Jan 2013 14:12
Last Modified: 03 Jan 2013 14:12
URI: http://eprints.hud.ac.uk/id/eprint/16422

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