M. Jachak, Sandeep M. Bagul, M. A. Kazi
Mar 1, 2011
Citations
0
Influential Citations
11
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
Novel pyrazolo[3,4-h][1,6]naphthyridine derivatives 6, 8, 9, 11, 13, and 15 have been synthesized by Friedlander condensation of new 4-amino-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-5-carbaldehyde (o-aminoaldehyde) 4 with active methylene ketones, such as symmetric acetone 5a, monoalkylketones 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5i, 5j, 5k, unsymmetrical dialkyl ketones 7a, 7b, p-bromophenylacetonitrile 10, β-ketoester 12a, β-ketoamide 12b, or diethyl malonate 14, respectively. J. Heterocyclic Chem., (2011).