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Anionische 3+2-Cycloaddition einer 1,2-Diazallyl-lithiumverbindung

✍ Scribed by Prof. Dr. Thomas Kauffmann; Dr. Dieter Berger; cand. chem. Björn Scheerer; cand. chem. Annegret Woltermann

Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
224 KB
Volume
82
Category
Article
ISSN
0044-8249

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✦ Synopsis

Azallyl-lithiumverbindungen mit Carbonylverbindungen? die zu offenkettigen Hydroxy-azomethinen fiihren 171, durch eine synchrone [4x + 2x1-Cycloaddition eingeleitet werden und daher nach (C) uber eine 1,3-Oxazolidinlithiurnverbindung verlaufen.

📜 SIMILAR VOLUMES

Anionische 3 + 2-Cycloaddition
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Anionic 3 + 2 Cycloaddition of a 1,2-Dia
Anionic 3 + 2 Cycloaddition of a 1,2-Diazaallyllithium Compound
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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