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Site-selective photocycloadditions of 2-pyrones with electron-poor olefins and the derivation from the cycloadducts

✍ Scribed by Tetsuro Shimo; Shinichi Yamasaki; Kenichi Date; Hisako Uemura; Kenichi Somekawa


Book ID
112130609
Publisher
Journal of Heterocyclic Chemistry
Year
1993
Tongue
English
Weight
357 KB
Volume
30
Category
Article
ISSN
0022-152X

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Cycloadditions of thienopyridazines and a thienopyridine with electron-poor olefins and acetylenes as dienophiles are described. The nonisolable adducts undergo subsequent loss of hydrogen sulfide to give substituted phthalazines and substituted isoquinolines, respectively. α­§ 1997 John Wiley & Sons,