Pd immobilized on modified magnetic Fe₃O₄ nanoparticles: Magnetically recoverable and reusable Pd nanocatalyst for Suzuki-Miyaura coupling reactions and Ullmann-type N-arylation of indoles

Journal of Chemical Sciences

RAMIN GHORBANI-VAGHEI1¹  SABA HEMMATI¹  MALAK HEKMATI² 

[1] Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 6517838683 Hamedan, Iran$$;Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, (IAUPS), Tehran, Iran$$

关键词: Fe₃;    O₄;    /AO/Pd;    magnetic nanoparticles;    heterogeneous catalyst;    Pd nanoparticles;    suzuki;    ullmann.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

The Pd supported on amidoxime (AO)-functionalized Fe₃O₄ ( Fe₃O₄ /AO/Pd) hybrid material was used as an effective and recyclable nanocatalyst in Suzuki-Miyaura coupling reactions. The catalyst was very effective for the Suzuki-Miyaura reaction of aryl halides (Ar–I, Ar–Br, Ar–Cl) with phenylboronic acid and conversion was excellent in most cases. The yields of the products were in the range from 7–98%. The catalyst showed good stability and could be recovered and reused for six reaction cycles without a significant loss in its catalytic activity. Also, a wide range of N-arylated indoles are selectively synthesized through inter molecular C(aryl)–N bond formation from the corresponding aryl iodides and indoles through Ullmann-type coupling reactions in the presence of the prepared catalyst.

【 授权许可】

Unknown