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5‐Nitrogenated‐naphthopyrans: toward photoinduced hydrogen‐bonded complexes
Author(s) -
Sallenave Xavier,
Delbaere Stéphanie,
Vermeersch Gaston,
Pozzo JeanLuc
Publication year - 2007
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.1218
Subject(s) - chemistry , photochromism , photochemistry , hydrogen , medicinal chemistry , organic chemistry
A series of 3,3‐diphenyl‐3H‐naphtho[2,1‐b]pyrans substituted on 5‐position by various nitrogenated functional groups has been synthesized. The photochromic reaction between the pyranic closed form and their open forms has been studied using NMR and UV–Vis spectroscopies. The ability of the photoinduced carbonyl group to promote the formation of hydrogen‐bonded complexes has been compared within the series. Copyright © 2007 John Wiley & Sons, Ltd.