SYNTHESIS OF ORIGINAL PYRROLONAPHTHYRIDINES BY 1,3-DIPOLAR CYCLOADDITION REACTIONS OF NAPHTHYRIDINIUM DICYANOMETHYLIDES WITH DIMETHYL ACETYLENEDICARBOXYLATE
I. Cardinaud et al., SYNTHESIS OF ORIGINAL PYRROLONAPHTHYRIDINES BY 1,3-DIPOLAR CYCLOADDITION REACTIONS OF NAPHTHYRIDINIUM DICYANOMETHYLIDES WITH DIMETHYL ACETYLENEDICARBOXYLATE, Heterocycles, 36(9), 1993, pp. 1945-1949
The pyrrolo[2,1-f][1,6]naphthyridine, pyrrolo[1,2-a][1,8]- and [1,5]na
phthyridines along with their corresponding 2,3- and 1,2-dihydrocompou
nds are synthesized from naphthyridinium dicyanomethylides and dimethy
l acetylenedicarboxylate.