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, Bulletin de la Societe Chimique de France called Organometallic chemistry. VI. Meerwein reaction. IV. Mechanistic aspects, Author is Al Adel, I.; Adeoti Salami, B.; Levisalles, J.; Rudler, H., which mentions a compound: 32717-95-6, SMILESS is C12=C(CCC3=C4CC2)[Cu+]1534[Cl-][Cu+]678(C9=C6CCC7=C8CC9)[Cl-]5, Molecular C16H16Cl2Cu2, Synthetic Route of C16H16Cl2Cu2.
The key step in the Meerwein reaction of p-ClC6H4N2+ salts in the presence of unsaturated compounds is formation of aryl radicals; complexation of the Cu(I) salt with the unsaturated compound plays only a minor role. Thus, treatment of RCuCl or R2CuBF4 (R = cyclooctadiene) with p-ClC6H4N2+X- (X = Cl, BF4) gives no Meerwein products. Similarly, treatment of CH2:CHCH2OH, which complexes easily with Cu, with p-ClC6H4N2+ and a Cu(I) catalyst gives only 5% of the Meerwein product p-ClC6H4CH2CHClCH2OH. On the other hand, the Meerwein reaction of CH2:CH(CH2)2CH2OH with p-ClC6H4N2+ gives the Meerwein product p-ClC6H4CH2CHCl(CH2)2CH2OH, I [via an aryl intermediate oxidized to a carbocation by Cu(I)], as well as p-ClC6H4N:NCH(CH2C6H4Cl-p)(CH2)2CH2OH and II.
Although many compounds look similar to this compound(32717-95-6)Synthetic Route of C16H16Cl2Cu2, numerous studies have shown that this compound(SMILES:C12=C(CCC3=C4CC2)[Cu+]1534[Cl-][Cu+]678(C9=C6CCC7=C8CC9)[Cl-]5), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider