Siddappa, S.; Bhat, G. A. published the article 《Synthesis of indole-2-carbaldehydes, 2-(2-aminoethyl) – and 2-(2-aminopropyl)indoles》. Keywords: indolecarboxaldehydes aminoalkyl; aminoalkyl indolecarboxaldehydes.They researched the compound: 5-Methoxy-1H-indole-2-carbaldehyde( cas:21778-81-4 ).Category: pyridazine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:21778-81-4) here.
Et indole-2-carboxylate derivatives (e.g. I) were reduced by LiAlH4 to indole-2-methanol derivatives (e.g. II). These were oxidized by MnO2 to indole-2-carboxaldehyde derivatives (e.g. III), which were also prepared from the indole-2-carboxylates by the McFadyen-Stevens reaction. The aldehydes reacted with MeNO2 and EtNO2, and the condensation products (e.g. IV and V) were reduced by LiAlH4 to 2-(2-aminoethyl)indoles (e.g. VI) and 2-(2-aminopropyl)indoles (e.g. VII), resp.
Although many compounds look similar to this compound(21778-81-4)Category: pyridazine, numerous studies have shown that this compound(SMILES:O=CC(N1)=CC2=C1C=CC(OC)=C2), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem