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A Theoretical Comparison of Two Competing Diradical Cyclizations in Enyne-Allenes: The Myers−Saito and the Novel C 2 −C 6 Cyclization

✍ Scribed by Engels, B.; Hanrath, M.


Book ID
127343184
Publisher
American Chemical Society
Year
1998
Tongue
English
Weight
137 KB
Volume
120
Category
Article
ISSN
0002-7863

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Ring Strain Effects in Enyne-Allene Ther
✍ Michael Schmittel; Jens-Peter Steffen; Dominik Auer; Michael Maywald 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 485 KB

The mode of the thermal cyclization of enyne-allenes 1 depends on ring strain effects: when the ene functionality is part of a benzene, cyclohexene or cycloheptene ring the novel C2-C6biradicrd cyclization is observed, while when it is part of a cyclopentene ring the Myers-Saito cycloaromatization i