Abstract
Reaction of arylmethylidene derivatives of malononitrile dimer with 1,3-cyclohexanediones in anhydrous methanol in the presence of sodium methylate as catalyst affords 4-amino-5-aryl-2-methoxy-6-oxo-5,6,7,8,9,10-hexahydrobenzo[b][1,8]naphthyridine-3-carbonitrile. In the presence of strong electron-donor substituents in the benzene ring the reaction takes another route resulting in 4-amino-2-aryl-6-methoxypyridine-3,5-dicarbonitriles.
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Original English Text © A.Yu. Alekseeva, D.L. Mikhailov, I.N. Bardasov, O.V. Ershov, O.E. Nasakin, A.N. Lyshchikov, 2014, published in Zhurnal Organicheskoi Khimii, 2014, Vol. 50, No. 2, pp. 251–257.
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Alekseeva, A.Y., Mikhailov, D.L., Bardasov, I.N. et al. Heterocyclization of michael adducts of β-diketones with arylmethylidene derivatives of malononitrile dimers. Russ J Org Chem 50, 244–250 (2014). https://doi.org/10.1134/S1070428014020171
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DOI: https://doi.org/10.1134/S1070428014020171