A new method for the synthesis of functionalized maleimides

  • Alizadeh A
  • Movahedi F
  • Esmaili A
  • 2


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An effective route to novel maleimides is described, which involves the reaction of an enamine derived from the addition of a secondary amine to a dialkyl acetylenedicarboxylate with an arylsulfonyl isocyanate. These maleimides in solution indicate dynamic NMR because of restricted rotation around the carbon-nitrogen bond, resulting from conjugation of the side-chain nitrogen with the adjacent ?,?-unsaturated ester group. ? 2006 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • [Dialkyl acetylenedicarboxylate, Diethylamine, Ena

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  • A. Alizadeh

  • F. Movahedi

  • A.A. Esmaili

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