Synthesis and photochromic properties of crown-containing styryl derivatives of naphthopyrans
作者:Evgeni M. Glebov、Artjom B. Smolentsev、Valeri V. Korolev、Victor F. Plyusnin、Anna V. Chebunkova、Sergei V. Paramonov、Olga A. Fedorova、Vladimir Lokshin、Andre Samat
DOI:10.1002/poc.1526
日期:2009.5
properties and photochemistry were characterized. Crown‐containing chromenes form inclusion complexes with Mg2+ cation. Two types of photochemical reactions were observed for all the studied chromenes. The photoreaction of the first type is cis–trans isomerization of styryl fragment in closed form. Second type of photoreaction is the reversible formation of open form responsible for the photochromism of chromenes