6533b835fe1ef96bd129f325

RESEARCH PRODUCT

Synthesis of Chlorinated Biphenyls by Suzuki Cross-Coupling Using Diamine or Diimine-Palladium Complexes

Noora KuulojaRobert FranzénKari RissanenYoujun XuTuula Kylmälä

subject

chemistry.chemical_compoundchemistrySuzuki reactionDiamineOrganic ChemistryPolymer chemistryOrganic chemistrychemistry.chemical_elementMethanolPhysical and Theoretical ChemistryDiimineChlorinated BiphenylsPalladium

description

Several novel diimines (Salen-type ligands) 2a–2i and their reduced diamine counterparts 3b,3d–3g and 3i form complexes 4a–4i, 5b,5d–5g, and 5i with PdCl2 in DMF or methanol. Using 1 mol-% of the isolated complexes 4e and 5f many polychlorinated biphenyls (PCBs) can be prepared in moderate to excellent yields according to the Suzuki crosscoupling protocol with contact to air. Several 4-acetylbiphen

https://doi.org/10.1002/ejoc.200800119