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Updated: Dec 25, 2025

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Palladium-Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides
Peng Hou1, Peter Oechsle1, Dirk Kuckling1
1Department of Chemistry, Paderborn University, Warburger Strasse 100, Paderborn, D-33098, Germany.
Abstract:
The palladium-catalyzed CS cross coupling reaction is investigated as a novel efficient tool for the synthesis of poly(phenyl)sulfide derivatives. The reaction proceeds through the polycondensation of dibromo arenes with a H2 S-surrogate to yield poly(aryl)sulfides. The reaction is generalized by the synthesis of so-far-unprecedented poly(2,5-thiophene)sulfide. Number average molecular weights (Msss ) of up to 3780 and 1770 g mol-1 for poly(phenyl)sulfide and poly(thiophene)sulfide are achieved with degrees of polymerization (DPn ) of 10 and 7, respectively. A mechanism for the new polycondensation reaction is suggested.
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