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Synthesis and photochromism of polyacetylene derivatives containing a spiroxazine moiety

✍ Scribed by Hee-Jung Suh; Sung-Ho Jin; Yeong-Soon Gal; Kwangnak Koh; Sung-Hoon Kim

Book ID
108401560
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
208 KB
Volume
58
Category
Article
ISSN
0143-7208

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## Abstract Crowned chromenes βˆ’ four novel naphthopyrans (chromenes) bearing monoaza‐12‐crown‐4, ‐15‐crown‐5, ‐18‐crown‐6, and a noncyclic analogue at the 5‐position βˆ’ were synthesized, and their photochromism in acetonitrile was examined in the presence of alkali and alkaline‐earth metal ions. Inc