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Intramolecular cycloadditions with 2-(ω-alkenyl)-5-hydroxy-4-pyrones

✍ Scribed by Michael E. Garst; Bill J. McBride; James G. Douglass III


Publisher
Elsevier Science
Year
1983
Tongue
French
Weight
158 KB
Volume
24
Category
Article
ISSN
0040-4039

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✍ Tom Obata; Tetsuro Shimo; Takaaki Suishu; Kenichi Somekawa 📂 Article 📅 1998 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 225 KB

## Abstract Solid state photoreactions and thermal reactions of 2‐pyrone‐5‐carboxylates with maleimides gave endo‐[4+2]cycloadducts, while the sensitized photoreactions gave exo‐[4+2]cycloadducts stereo‐selectively.