Mohamed Hassan, M. A. Barsy, E. A. El Rady, M. A. Khalil, F. M. Abd El Latif, H. A. El Damrany Hussein
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Tandem Aza-Wittig/Heterocumulene-Mediated Annulation: Synthesis of Chromeno[2,3-d]pyrimidin-4-ones
The carbodiimides obtained from the reaction of ethyl 7-hydroxy-4-phenyl-2-[(triphenyl-λ5-phosphanylidene)amino]-4H-chromene-3-carboxylate with phenyl isocyanate reacted with different alkyl- and arylamines in the presence of sodium ethoxide to afford a series of chromeno[2,3-d]pyrimidin-4-one derivatives in good yields.
期刊介绍:
Russian Journal of Organic Chemistry is an international peer reviewed journal that covers all aspects of modern organic chemistry including organic synthesis, theoretical organic chemistry, structure and mechanism, and the application of organometallic compounds in organic synthesis.