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Synthesis and Photochromism of Novel Pyridyl-Substituted Naphthopyrans. 2020

Orlando D C C de Azevedo, and Paul I P Elliott, and Christopher D Gabbutt, and B Mark Heron, and Kyle J Lord, and Christopher Pullen
Department of Chemical Sciences, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K.

Multitarget synthetic strategies to access novel photochromic 3H-naphtho[2,1-b]pyrans decorated with pyridyl units are described. The new pyridyl-substituted 3H-naphtho[2,1-b]pyrans display good photochromic properties with reversible generation of photomerocyanines, which exhibit mainly orange/red hues. Photochromic parameters including photocolorability and persistence of color vary tremendously on structural modification of the naphthopyran core.

UI MeSH Term Description Entries

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