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Controllable [2+2] Cycloadditions of 1,5-Bisallenyl-Substituted Compounds

✍ Scribed by Xuefeng Jiang; Xin Cheng; Shengming Ma

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
179 KB
Volume
118
Category
Article
ISSN
0044-8249

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πŸ“œ SIMILAR VOLUMES

Anionic 3 + 2 Cycloaddition of a 1,2-Dia
Anionic 3 + 2 Cycloaddition of a 1,2-Diazaallyllithium Compound
✍ Prof. Dr. Thomas Kauffmann; Dr. Dieter Berger; BjΓΆrn Scheerer; Annegret Wolterma πŸ“‚ Article πŸ“… 1970 πŸ› John Wiley and Sons 🌐 English βš– 195 KB πŸ‘ 1 views

The energy barrier to be overcome in anionic 3 + 2 cycloadditions according to (A) (21 and the corresponding cyclo--~~~' 1 ~~H 5 eliminations according to (8) (X = 0, S)[31 should be low since the symmetry of the ~i orbitals is conserved [4+51. The direction of reaction is dictated by the arrangemen