Synthesis and Photochromism of Novel Pyridyl-Substituted Naphthopyrans
Orlando D. C. C. de Azevedo, Paul I. P. Elliott, Christopher D. Gabbutt, B. Mark Heron, Kyle J. Lord, Christopher Pullen
Abstract
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.
Topics & Concepts
PhotochromismChemistryPhotochemistryHueOrange (colour)Combinatorial chemistryOpticsFood sciencePhysicsPhotochromic and Fluorescence ChemistryPorphyrin and Phthalocyanine ChemistrySynthesis of Indole Derivatives