In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Insights into the mechanistic and synthetic aspects of the Mo/P-catalyzed oxidation of N-heterocycles, published in 2014, which mentions a compound: 1127-45-3, mainly applied to oxidation nitrogen heterocycle phosphomolybdic acid catalyst; nitrogen heterocycle oxide preparation, Safety of 8-Hydroxyquinoline 1-oxide.
A Mo/P catalytic system for an efficient gram-scale oxidation of a variety of nitrogen heterocycles to N-oxides with hydrogen peroxide as terminal oxidant has been investigated. Combined spectroscopic and crystallog. studies point to the tetranuclear Mo4P peroxo complex as one of the active catalytic species present in the solution Based on this finding an optimized catalytic system has been developed. The utility and chemoselectivity of the catalytic system has been demonstrated by the synthesis of over 20 heterocyclic N-oxides.
There is still a lot of research devoted to this compound(SMILES：OC1=CC=CC2=CC=C[N+]([O-])=C12)Safety of 8-Hydroxyquinoline 1-oxide, and with the development of science, more effects of this compound(1127-45-3) can be discovered.
Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider