Abstract
A novel metal‐free methodology for the synthesis of diacyl/acyl N‐allylhydrazines based on PhI(OAc)2‐promoted 1,2‐diaza‐Cope rearrangement reaction of β,γ‐unsaturated hydrazones with acetate/H2O has been described. This cascade reaction works efficiently under mild conditions. A possible mechanism involving hydrazonyl radicals and N–I(III) intermediates of β,γ‐unsaturated hydrazones is proposed.
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