Reaction Kinetics, Mechanisms and Catalysis

, Volume 104, Issue 2, pp 323–336 | Cite as

Ultranox626 as a selective ligand in rhodium-catalyzed hydroformylation–acetalization of allylbenzene derivatives

  • Mouheddin Alhaffar
  • Rami Suleiman
  • S. M. Shakil Hussain
  • Bassam El Ali


Ultranox626 as a diphosphite ligand showed high selectivity and good yields when used with Rh(CO)2(acac) as a catalyst precursor in the hydroformylation of allylbenzene derivatives producing aldehydes, and also in the one-pot hydroformylation–acetalization forming acetals. These reactions proceed smoothly and effectively to produce the linear aldehydes or acetals with high selectivity. The recycling of the rhodium catalyst was carried out after the careful screening and optimization of the reaction conditions in order to maximize the conversion and the selectivity of the reactions.


Allylbenzene derivatives Eugenol Hydroformylation Acetalization Rhodium Ultranox626 



We thank King Fahd University of Petroleum and Minerals (KFUPM-Saudi Arabia) for providing all support to this project (IN 070379).


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2011

Authors and Affiliations

  • Mouheddin Alhaffar
    • 1
  • Rami Suleiman
    • 2
  • S. M. Shakil Hussain
    • 3
  • Bassam El Ali
    • 3
  1. 1.Center of Research Excellence in NanotechnologyKing Fahd University of Petroleum and Minerals (KFUPM)DhahranSaudi Arabia
  2. 2.Center of Research Excellence in CorrosionKing Fahd University of Petroleum and Minerals (KFUPM)DhahranSaudi Arabia
  3. 3.Chemistry DepartmentKing Fahd University of Petroleum and Minerals (KFUPM)DhahranSaudi Arabia

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