Anionic 3 + 2 Cycloaddition of a 1,2-Dia
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Prof. Dr. Thomas Kauffmann; Dr. Dieter Berger; Björn Scheerer; Annegret Wolterma
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Article
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1970
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John Wiley and Sons
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English
⚖ 195 KB
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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