Nickel-Catalyzed Direct Arylation Polymerization for the Synthesis of Thiophene-Based Cross-linked Polymers

Y. Mohr (1) , A. Ranscht (1) , M. Alves-Favaro (1) , E. Quadrelli (1) , F. Wisser (2) , J. Canivet (1)

1 ING - IRCELYON-Ingéniérie, du matériau au réacteur
2 UR - Universität Regensburg

An earth-abundant nickel(II) bipyridine catalyst, combined with lithium hexamethyldisilazide as base, demonstrates its wide applicability in the direct arylation polymerization of di- and tri-thiophene heteroaryls with poly(hetero)aryl halides. With a nickel catalyst loading of 2.5 mol%, a series of twenty highly cross-linked organic polymers is obtained in 34 to 99 % yields. Using mixed polytopic coupling partners allows obtaining alternating and optically active thiophene-based solids with intrinsic porosity.

Domains: Catalysis; Polymers

Y. Mohr, A. Ranscht, M. Alves-Favaro, E. Quadrelli, F. Wisser, et al.. Nickel-Catalyzed Direct Arylation Polymerization for the Synthesis of Thiophene-Based Cross-linked Polymers. Chemistry - A European Journal, 2022, 29 (2), pp.e202202667. ⟨10.1002/chem.202202667⟩. ⟨hal-03884735⟩