Catalysis Letters

, Volume 19, Issue 2–3, pp 217–222 | Cite as

A highly active palladium complex catalyst in the synthesis of N,N′-diphenylurea from nitrobenzene, aniline and carbon monoxide

  • Chul Woo Lee
  • Sang Moo Lee
  • Jae Seung Oh
  • Jae Sung Lee


A catalyst system comprising palladium acetate and bidentate bis(diphenylphosphino)alkane ligand of general formula Ph2P(CH2)nPPh2 (n = 3–5) was highly active in N,N′-diphenylurea synthesis from nitrobenzene, aniline and carbon monoxide and showed different reactivity from the system with the more common monodentate triphenylphosphine ligand.


N,N′-diphenylurea palladium complex catalyst bidentate phosphine ligands 


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Copyright information

© J.C. Baltzer AG, Science Publishers 1993

Authors and Affiliations

  • Chul Woo Lee
    • 1
  • Sang Moo Lee
    • 1
    • 2
  • Jae Seung Oh
    • 1
    • 2
  • Jae Sung Lee
    • 1
  1. 1.Department of Chemical EngineeringPohang Institute of Science and TechnologyPohangKorea
  2. 2.Lucky R&D CenterChemical Process and CatalysisDaejonKorea

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