SYNTHESIS OF NOVEL PYRIDAZINO[3,4-B]QUINOXALINES

Authors
KIM HS KIM EK KIM SS PARK YT HONG YS KURASAWA Y
Citation
Hs. Kim et al., SYNTHESIS OF NOVEL PYRIDAZINO[3,4-B]QUINOXALINES, Journal of heterocyclic chemistry, 34(1), 1997, pp. 39-42
Citations number
9
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Journal of heterocyclic chemistry → ACNP
ISSN journal
0022152X
Volume
34
Issue
1
Year of publication
1997
Pages
39 - 42
Database
ISI
SICI code
0022-152X(1997)34:1<39:SONP>2.0.ZU;2-S
Abstract
The pyridazino[3,4-b]quinoxaline 12 was synthesized by the cyclization of the alpha-arylhydrazonoacylhydrazide 11. The reaction of compound 12 with phosphoryl chloride gave pyridazino [3,4-b]quinoxaline 13, who se reactions with sodium azide or cyclic secondary amines provided pyr idazino[3,4-b]quinoxalines 14, 17 and 18, respectively. The acylhydraz ide 15 was also cyclized to pyridazino[3,4-b]quinoxaline 16.