Synthesis and characterizations of N,N,N ',N '-tetrakis (diphenylphosphino)ethylendiamine derivatives: Use of palladium(II) complex as pre-catalyst in Suzuki coupling and Heck reactions

Date

2009-03-01

Author

AKBA, OSMAN
DURAP, FEYYAZ
AYDEMİR, MURAT
BAYSAL, AKIN
Guemguem, Bahattin
Özkar, Saim

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Oxidation of N,N,N',N'-tetrakis(diphenylphosphino)ethylendiamine (1) with elemental sulfur and selenium gives the corresponding sulfide and selenide, respectively, [(Ph2P(E))(2)NCH2CH2N(P(E)Ph-2)(2)] (E: S 1a, Se 1b). Complexes of 1 [(M2Cl4){(Ph2P)(2)NCH2CH2N(PPh2)(2)}] (M: Ni(II) 1c, Pd(II) 1d, Pt(II) 1e) were prepared by the reaction of 1 with NiCl2 or [MCl2(COD)] (M = Pd, Pt). The new compounds were characterized by NMR, IR spectroscopy and elemental analysis. The catalytic activity of Pd(II) complex 1d was tested in the Suzuki coupling reaction and Heck reaction. The palladium complex 1d catalyses the Heck reaction between styrene and aryl bromides as well as Suzuki coupling reaction between phenylboronic acid and arylbromides affording stilbenes and biphenyls in high yield, respectively.

Subject Keywords

Physical and Theoretical Chemistry, Inorganic Chemistry, Organic Chemistry, Materials Chemistry, Biochemistry

URI

https://hdl.handle.net/11511/63005

Journal

JOURNAL OF ORGANOMETALLIC CHEMISTRY

DOI

https://doi.org/10.1016/j.jorganchem.2008.11.063

Collections

Department of Chemistry, Article

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Citation Formats

O. AKBA, F. DURAP, M. AYDEMİR, A. BAYSAL, B. Guemguem, and S. Özkar, “Synthesis and characterizations of N,N,N ‘,N ’-tetrakis (diphenylphosphino)ethylendiamine derivatives: Use of palladium(II) complex as pre-catalyst in Suzuki coupling and Heck reactions,” JOURNAL OF ORGANOMETALLIC CHEMISTRY, pp. 731–736, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63005.