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Enamides via Long‐Distance Migration of Double Bonds
Authors:Sergey&#x  A. Sergeyev,Manfred Hesse
Affiliation:Sergey A. Sergeyev,Manfred Hesse
Abstract:A new method for preparation of enamides (N‐(alken‐1‐yl) amides) by means of the ‘long‐distance' migration of the double bond in unsaturated amides in the presence of [Fe(CO)5] is described. The method is shown to be particularly useful for the isomerization of N‐(but‐3‐enyl)amides, while, in the case of N‐(pent‐4‐enyl) and N‐(hex‐5‐enyl) amides the mixture of products was formed and the yield of the enamide was relatively low.
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