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

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-C C-C6H4R (a-j), in air without a cocatalyst, providing a new metal catalyst design concept for the coordination polymerization of disubstituted alkynes.

Automated summary

Commercially available palladium salts as single-component catalysts can polymerize various 1-chloro-2-phenylacetylenes in air without a cocatalyst, showing advantages of low cost, stability, environmental friendliness, and broad applicability.