Formula: C10H9NO2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5-Methoxy-1H-indole-2-carbaldehyde, is researched, Molecular C10H9NO2, CAS is 21778-81-4, about Copper-Catalyzed Annulation of 2-Formylazoles with o-Aminoiodoarenes. Author is Reeves, Jonathan T.; Fandrick, Daniel R.; Tan, Zhulin; Song, Jinhua J.; Lee, Heewon; Yee, Nathan K.; Senanayake, Chris H..
In the presence of catalytic CuI and sparteine, 2-formylpyrroles can be annulated with o-aminoiodoarenes to give substituted pyrrolo[1,2-a]quinoxalines and related heterocycles. The reaction also works for annulation of 2-formylindoles, 2-formylimidazole, 2-formylbenzimidazole, and a 3-formylpyrazole.
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Reference:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem