Carbonium ion rearrangement in the synthesis of γ-lactones from (E)-β-alkylcinnamic acids

Add time:08/03/2019    Source:sciencedirect.com

A possible formation of a bridged carbonium ion intermediate in the lactonization of (E)-β-t-butylcinnamic acid is discussed on the basis of deuteriation and 13C NMR experiments.

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