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 The Trityl-Cation Mediated Phosphine Oxides Reduction, published in 2021-06-21, which mentions a compound: 37943-90-1, Name is Diphenyl-2-pyridylphosphine, Molecular C17H14NP, Application of 37943-90-1.
Reduction of phosphine oxides into the corresponding phosphines using PhSiH3 as a reducing agent and Ph3C+[B(C6F5)4]- as an initiator is described. The process is highly efficient, reducing a broad range of secondary and tertiary alkyl and arylphosphines, bearing various functional groups in generally good yields. The reaction is believed to proceed through the generation of a silyl cation, which reaction with the phosphine oxide provides a phosphonium salt, further reduced by the silane to afford the desired phosphine along with siloxanes.
In some applications, this compound(37943-90-1)Application of 37943-90-1 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem