T. M. A. Elmaati, S. B. Said, Nahla S. Abu Elenein
May 1, 2003
Citations
0
Influential Citations
15
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
The hydrazone 1 reacts with DMFDMA to give 2-dimethylaminomethylene-3-(phenylhydrazono)-indan-1-one (2) which reacts with hydrazine hydrate and the pyrazole derivative 4 to afford the indenopyrazole derivatives 3 and the indenofluorene 5 respectively. The reaction of 2 with the active methylene compounds, mainly malononitrile, cyanoacetamide and malononitrile dimer was investigated and found to proceed successfully to yield the indenopyran 7, indenpyridine 8b and trinitrile 9 respectively. Compound 2 reacted with lH-benzimidazole-2-acetonitrile 10 to give to the diazaindenofluorene derivative 11. Also, 2 reacted with ω-cyano compounds 12a,b to afford the indenopyran 14. On the other hand the hydrazone 1 was allowed to react with the enaminones 15, 18 and 21 affording the diazabenzoazulene derivatives 17, 20 and the indeno[1,2-b]pyridin 23, respectively.