A new method for the synthesis of functionalized maleimides |
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| Authors: | Abdolali Alizadeh Farnaz Movahedi |
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| Institution: | a Department of Chemistry, Tarbiat Modarres University, PO Box 14115-175, Tehran, Iran
b Department of Chemistry, University of Birjand, PO Box 414, Birjand, Iran |
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| Abstract: | 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 α,β-unsaturated ester group. |
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| Keywords: | Dialkyl acetylenedicarboxylate Diethylamine Morpholine Enamine Isocyanate Maleimide Multicomponent reaction |
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