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Intercyclic [π 2+σ2+σ2]-and π2+ π2]-cycloaddition reactions in sterically fixed norbornadiene-/quadricyclane-systems

✍ Scribed by Horst Prinzbach; Klaus Weidmann; Stephan Trah; Lothar Knothe


Publisher
Elsevier Science
Year
1981
Tongue
French
Weight
218 KB
Volume
22
Category
Article
ISSN
0040-4039

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Inverse-electron demand [π2 + σ2 + σ2] c
✍ Kiyoshi Matsumoto; Hiroyuki Taketsuna; Jong Chul Kim; Akikazu Kakehi 📂 Article 📅 2001 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 66 KB

## Abstract A first example of an inverse‐electron demand [~π~2 + ~σ~2 + ~σ~2] cycloaddition reaction of dimethyl oxaquadricyclane‐2,3‐dicarboxylate was reported: cyclooctyne underwent cycloaddition with dimethyl oxaquadricyclane‐2,3‐dicarboxylate to afford the corresponding adducts one of whose st