In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Nickel-catalyzed enantioselective allylic alkylation of lactones and lactams with unactivated allylic alcohols, published in 2018, which mentions a compound: 221012-82-4, Name is (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine, Molecular C38H34N2O4P2, Electric Literature of C38H34N2O4P2.
The first nickel-catalyzed enantioselective allylic alkylation of lactone and lactam substrates to deliver α-quaternary lactones and lactams bearing an all-carbon quaternary stereocenter I [X = O, N-Bz, R1 = Me, Et; R2 = H, Ph, 2-furanyl, etc.] was reported. The reaction, which utilize a com. available chiral bisphosphine ligand, proceeded in good yield with a high level of enantioselectivity (up to 90% ee) on a range of unactivated allylic alcs. for both lactone and lactam nucleophiles. The utility of this method was further highlighted via a number of synthetically useful product transformations.
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Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider