Peter, Matthias published the artcileA cyclic vicinal bis(tetraketone) and structural investigations of formoins, SDS of cas: 40353-41-1, the main research area is cyclic vicinal tetraketone structural investigation formoins.
Investigations of simple formoins such as 2,5-bis(1,1-dimethyl-2-phenylethyl)-2,4-dihydroxyfuran-3(2H)-one (17), benzoylformoin (18), p-toluoylformoin (19), pivaloylformoin (20), and the 2,4-dihydroxy-2,5-bis(heterocycl-2-yl)furan-3-ones 21-23 (heterocycle = furan, thiophene, selenophene) by NMR spectroscopy in DMSO showed the dihydroxyfuranone skeleton and not an enediol structure. The formoin 17 was oxidized to the corresponding tetraketone 10. The intermol. double benzoin condensation of 1,4-bis(2,2-dimethyl-3,4-dioxobutyl)benzene (27) affords, in low yield, the bis(formoin) 29, and this could be oxidized to provide 2,2,2′,2′,7,7,7′,7′-octamethyl[8,8]paracyclophan-3,3′,4,4’5,5’6,6′-octaone (9). The mol. structures of 17 and 29, the monohydrate of 10 (30), and also the dihydrate of 9 (31) are reported.
European Journal of Organic Chemistry published new progress about Benzoin condensation reaction (intermol. double benzoin). 40353-41-1 belongs to class quinoxaline, name is 2-(Thiophen-2-yl)quinoxaline, and the molecular formula is C12H8N2S, SDS of cas: 40353-41-1.
Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider