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 Carbonylation of organic halo derivatives into acids in the presence of palladium complexes, published in 1982-06-30, which mentions a compound: 3411-48-1, Name is Tri(naphthalen-1-yl)phosphine, Molecular C30H21P, SDS of cas: 3411-48-1.
The reactions of organic halides with CO to give carboxylic acids were catalyzed by the reaction products of (PhCN)2PdCl2 (I) with different ligands, e.g., phosphines, stilbines, sulfides, and quinone. Tertiary phosphines, especially Ph3P, were the most effective ligands. The activity of the halides increased in the following orders: alkyl < Ph < benzyl and Cl < Br < I. With Ph3P and I the optimal P/Pd ratio was 4-6. After consulting a lot of data, we found that this compound(3411-48-1)SDS of cas: 3411-48-1 can be used in many types of reactions. And in most cases, this compound has more advantages.
Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis