Commercially available palladium salts as practical and green single-component catalysts in the coordination polymerization of 1-chloro-2-phenylacetylenes in air

Abstract

Commercially available palladium salts (1–4) (1: PdCl₂; 2: PdCl₂(CH₃CN)₂; 3: PdCl₂(C₆H₅CN)₂; and 4: Pd(OAc)₂) served as low-cost, stable, green, broad-spectrum, and single-component catalysts with low sensitivity toward functional groups and solvents during the coordination polymerization of various 1-chloro-2-phenylacetylenes, Cl–CC–C₆H₄R (a–j), in air without a co-catalyst, providing a new metal catalyst design concept for the coordination polymerization of disubstituted alkynes.