Abstract magnified image A simple and efficient three component process for the synthesis of 2‐amino‐2‐chromenes utilizing the reaction of aryl aldehydes 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h with active methylenes 2a,b and 1‐naphthol 3 in refluxing ethanol/piperidine under microwave‐heating is described. J. Heterocyclic Chem., (2009).
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Mekheimer et al. (2009) studied this question.
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