Tang, Wei-Hung et al. published their research in Journal of Organometallic Chemistry in 2015 | CAS: 5448-43-1

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxalines are used as dyes, pharmaceuticals, and antibiotics such as echinomycin, levomycin exhibiting antitumoral properties. Quinoxalines establish also the basis of anthelmintics and receptor antagonists.Reference of 5448-43-1

Ruthenium(II) η6-arene complexes containing a dinucleating ligand based on 1,8-naphthyridine was written by Tang, Wei-Hung;Liu, Yi-Hung;Peng, Shie-Ming;Liu, Shiuh-Tzung. And the article was included in Journal of Organometallic Chemistry in 2015.Reference of 5448-43-1 This article mentions the following:

Ruthenium arene half-sandwich complexes, [(η6-p-cymene)2Ru2(μ-L)Cl2](PF6)2 (3b, L = N,N,N’,N’-tetra-2-pyridinyl-1,8-naphthyridine-2,7-diamine) and [(η6-p-cymene)Ru(L’)Cl](PF6) [4, L’ = tri-2-pyridinylamine], were synthesized and characterized by spectroscopic and anal. techniques. The mol. structure of [(η6-p-cymene)2Ru2(μ-L)Cl2]Cl2 (3a) was further determined by single-crystal x-ray anal. The use of these ruthenium complexes as pre-catalysts for oxidative coupling of 1,2-diols/1,2-aminoalc. with o-phenylenediamines leading to quinoxalines was investigated. Complex 3b appeared to be a good catalyst for this transformation. In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1Reference of 5448-43-1).

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxalines are used as dyes, pharmaceuticals, and antibiotics such as echinomycin, levomycin exhibiting antitumoral properties. Quinoxalines establish also the basis of anthelmintics and receptor antagonists.Reference of 5448-43-1

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider