Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Yakugaku Zasshi called Catalytic dehalogenation reaction, Author is Miyaki, Takaaki; Kataoka, Eisei, which mentions a compound: 1569-17-1, SMILESS is CC1=C2C=CC=NC2=NC=C1, Molecular C9H8N2, Formula: C9H8N2.
Catalytic dehalogenation of 2,7-dichloro-4-methyl-1,8-naphthyridine with Pd-CaCO3 gave 4-methylnaphthyridine and chloro-4-methylnaphthyridine (the details to be reported later). Catalytic dehalogenation of 2,4-dichloro-6-methylpyrimidine gave a compound whose picrate (m. 130-1°) did not depress the m. p. of 6-methylpyrimidine picrate. In like manner the following compounds were studied with the reaction indicated: 4-phenyl-2,6-dichloropyrimidine → C10H8N2, m. 66-7°; 1-bromo-β-naphthol → β-naphthol; 1-bromo-β-naphthol Me ether → β-naphthol Me ether; bromopiperonal → piperonal; o-BrC6H4NO2 → aniline + o-bromoaniline + 2,2′-dibromoazoxybenzene.
In addition to the literature in the link below, there is a lot of literature about this compound(4-Methyl-1,8-naphthyridine)Formula: C9H8N2, illustrating the importance and wide applicability of this compound(1569-17-1).
Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem