Room-temperature hydrodebromination of 4,4'-dibromobiphenyl catalyzed by 1,1'-bis(diphenylphosphino) ferrocene complexes of palladium

24Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Hydrodebromination of 4,4'-dibromobiphenyl to 4-bromobiphenyl and biphenyl was studied by using a variety of metal complexes of Ru(II), Ni(II), Pd(II), Pt(II) and Cu(I) under different ligand environments. Palladium complexes are most effective in giving biphenyl whereas other complexes give 4-bromobiphenyl. 1,1'-Bis(dipbenylphosphino)ferrocene (dppf) is the best phosphine ligand whereas NaBH4and N,N,N',N'-tetramethylethylenediamine are the best reductant and base, respectively. The use of catalytic PdCl2(CH3CN)2and PdCl2(dppf) gives 4-bromobiphenyl (86%) and bipbenyl (100%) respectively. PdCl2(dppf) is effective even at a low concentration of 3.5 mol.% and at room temperature (r.t.) with a short reaction time (10 min) and performs better than Pd on charcoal (5%). It also leads to a complete breakdown of 4-monobromobiphenyl and decabromobiphenyl giving 100% of biphenyl in 4 min and 40 h, respectively.

Cite

CITATION STYLE

APA

Wei, B., & Hor, T. S. A. (1998). Room-temperature hydrodebromination of 4,4’-dibromobiphenyl catalyzed by 1,1’-bis(diphenylphosphino) ferrocene complexes of palladium. Journal of Molecular Catalysis A: Chemical, 132(2–3), 223–229. https://doi.org/10.1016/S1381-1169(97)00274-4

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free