Abstract
Article history: Received May 30, 2012 Received in Revised form July 31, 2012 Accepted 1August 2012 Available online 1 August 2012 Analysis of global electrophilicity and nucleophilicity power of the addends indicate polar character of [2+3] cycloaddition reactions between arylnitrones and trans-substituted nitroethenes. The regioselectivity of these reactions is determined by nucleophilic attack of oxygen atom from nitrone on activated β-position of nitroalkene. Interaction of this type leads to 4-nitroisoxazolidines, which are the only reaction products. © 2012 Growing Science Ltd. All rights reserved.
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