Abstract
Condensation of 2-acyl-1-(N-morpholinyl)cycloalkene with malononitrile dimer results in 1-alkyl-(aryl)-4-cyano-3-dicyanomethylene-substituted carbo[c]fused pyridines. Reaction of the latter with alkyl halides affords the corresponding 2-alkyl-2-(3-isoquinolinyl)malononitrile, 1-amino-2-(4-bromobenzoyl)-5-(2-chlorophenyl)-6,7,8,9-tetrahydro-3H-cyclopenta[c]isoquinoline-3,3-dicarbonitrile and 10-amino-8-phenyl-5-(2-chlorophenyl)-1,2,3,4-tetrahydro-7H-pyrido[2′,3′:3,4]cyclopenta[1,2-c]isoquinoline-7,7,9-tricarbonitrile. Structure of the latter and of 2-(1-methyl-4-cyano-5,6,7,8-tetrahydroisoquinolin-3-yl)-2-(2-oxo-2-phenylethyl)-malononitrile was investigated by XRD.
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Original Russian Text © I.V. Dyachenko, E.B. Rusanov, A.V. Gutov, M.V. Vovk, 2013, published in Zhurnal Obshchei Khimii, 2013, Vol. 83, No. 7, pp. 1132–1142.
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Dyachenko, I.V., Rusanov, E.B., Gutov, A.V. et al. Synthesis and alkylation of 1-alkyl(aryl)-4-cyano-3-dicyanomethylene-substituted carbo[c]fused pyridines. Molecular and crystal structure of 2-(4-cyano-1-methyl-5,6,7,8-tetrahydroisoquinolin-3-yl)-2-(2-oxo-2-phenylethyl)malononitrile and 10-amino-8-phenyl-5-(2-chlorophenyl)-1,2,3,4-tetrahydro-7H-pyrido[2′,3′:3,4]cyclopenta[1,2-c]isoquinoline-7,7,9-tricarbonitrile. Russ J Gen Chem 83, 1383–1393 (2013). https://doi.org/10.1134/S1070363213070141
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DOI: https://doi.org/10.1134/S1070363213070141