An investigation of the scope of the 1, 7-electrocyclization of α, β: γ, δ-conjugated azomethine ylides
…, JA Platts, M Nyerges, RJ Anderson, PW Groundwater
Index: Zhang, Weimin; Ning, Fuqiang; Varadi, Linda; Hibbs, David E.; Platts, James A.; Nyerges, Miklos; Anderson, Rosaleen J.; Groundwater, Paul W. Tetrahedron, 2014 , vol. 70, # 22 p. 3621 - 3629
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Citation Number: 3
Abstract
Abstract Substituents on the diene component have little influence on the periselectivity of the cyclizations of α, β: γ, δ-conjugated azomethine ylides, with 1, 7-electrocyclizations predominating. In some cases, subtle changes to these substituents can, however, influence the product formed, through their effect on the relative energies of the transition states for the 1, 5-(6π) and 1, 7-electrocyclization (8π) processes. The most striking changes in ...
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