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 Synthesis, characterization, and electrochemistry of phosphine-substituted diiron butane-1,2-dithiolate complexes, published in 2019, which mentions a compound: 37943-90-1, Name is Diphenyl-2-pyridylphosphine, Molecular C17H14NP, Formula: C17H14NP.
The reactions of the starting complex, [Fe2(CO)6{μ-SCH2CH EtS}] (1), with the phosphine ligands tris(4-methylphenyl)phosphine, diphenyl-2-pyridylphosphine, tris(4-fluorophenyl)phosphine, 2-(diphenylphosphino)benzaldehyde, or benzyldiphenylphosphine in the presence of the decarbonylating agent Me3NO·2H2O yielded the corresponding phosphine-substituted diiron butane-1,2-dithiolate complexes [Fe2(CO)5(L){μ-SCH2CHEtS}] (L = P(4-C6H4CH3)3, 2; Ph2P(2-C5H4N),3; P(4-C6H4F)3, 4; Ph2P(2-C6H4CHO),5; Ph2PCH2Ph) 6in 75%-87% yields. The complexes were characterized by elemental anal., IR, 1H, and 31P{1H} NMR spectroscopy, as well as by single-crystal x-ray diffraction anal. Moreover, the electrochem. of 2-4 was studied by cyclic voltammetry, suggesting that they can catalyze the reduction of protons to H2 in the presence of HOAc.
Different reactions of this compound(Diphenyl-2-pyridylphosphine)Formula: C17H14NP require different conditions, so the reaction conditions are very important.
Reference:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem