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Stereoselective photo[4+2]cycloadditions of 2-pyrone-5-carboxylates with maleimides in the solid state and in solution

✍ Scribed by Tom Obata; Tetsuro Shimo; Takaaki Suishu; Kenichi Somekawa

Publisher
Journal of Heterocyclic Chemistry
Year
1998
Tongue
English
Weight
225 KB
Volume
35
Category
Article
ISSN
0022-152X

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✦ Synopsis

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.

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