D. Dumitrescu, M. Popa
2008
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Journal
ChemInform
Abstract
The pyrrolo[1,2-b]pyridazines 6a-j were synthesized via a 1,3-dipolar cycloaddition between pyridazinium N-ylides and symmetrical and non-symmetrical acetylenic and olefinic dipolarophiles, by two distinct procedures. Structural assignment of the new compounds was performed on the basis of H-NMR and C-NMR spectra and elemental analysis. The regioselectivity and yields of the cycloaddition reactions remained consistent both in the case of non-symmetrical olefinic and acetylenic dipolarophiles.