An Elegant Synthetic Route to 3-Cyano-5,6-dihydro-2-ethoxy-4-phenyl-pyrido[2,3-a]carbazoles
نویسندگان
چکیده
Z. Naturforsch. 59b, 106 – 108 (2004); received August 4, 2003 2-Benzylidene-1-oxo-1,2,3,4-tetrahydrocarbazoles (1a – e) obtained from the corresponding 1oxo-1,2,3,4-tetrahydrocarbazoles on reaction with malononitrile in dry benzene with sodium hydride afforded 3-cyano-5,6-dihydro-2-ethoxy-4-phenyl-pyrido[2,3-a]carbazoles (2a – e) in good yields. A plausible mechanism for the formation of the title compound has been proposed and all the compounds were characterised by IR, NMR, mass spectral methods and elemental analysis.
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