K. Dawood
Mar 1, 2005
Citations
1
Influential Citations
39
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
Reactions of 2,3-dihydro-4-oxo-thiopyrano[2,3-b]pyridine with aldehydes and with DMF-DMA furnished the 3-benzylidene and 3-(N,N-dimethylamino)-methylene derivatives. The latter products afforded spiro-pyrazolo-3,3′-thiopyrano[2,3-b]pyridines and new tetra- and penta-heterocyclic ring systems when treated with nitrilimines and aminoazoles, respectively. A number of the products showed high antifungal and antibacterial activities.