Bidentate Phosphines of Heteroarenes: 4,6‐Bis(diphenylphosphino)dibenzofuran and 4,6‐Bis(diphenylphosphino)dibenzothiophene
Author:
Affiliation:
1. Max‐Planck‐Institut für Kohlenforschung, Kaiser‐Wilhelm‐Platz 1, W‐4330 Mülheim/Ruhr, F. R. G.
Publisher
Wiley
Subject
Inorganic Chemistry
Link
https://onlinelibrary.wiley.com/doi/pdf/10.1002/cber.19911240806
Reference31 articles.
1. Dedicated to ProfessorHeinz A. Staabon the occasion of his 65th birthday.
2. Phosphine ligands 2; for part 1 see ref.3). The present work is part of the doctoral thesis ofD.Jakubik University of Düsseldorf 1990.
3. The title compound 4 was synthesized from dipotassium 1,8‐anthracenedisulfonate (9) and potassium diphenylphosphide (Ph 2 PK). On reaction of 4 with nickel(II) chloride and bis‐(benzonitrile)palladium(II) chloride, cyclometallation of the C – H bond in anthracene 9‐position led to the square‐planar chelate complexes 11 and 13, respectively. In the case of the palladium complex 13, the cyclometallated structure was proved by X‐ray structure analysis. Treatment with aqueous potassium cyanide did not remove nickel from 11, but converted 11 into 12 by substitution of chloride with cyanide, demonstrating the high stability of these cyclometallated chelate complexes.
4. Synthesis and structure of a stable complex featuring an S-bound dibenzothiophene ligand: RuCl2(4-R2PDBT)2 (DBT = dibenzothiophene)
5. Structural aspects of thiophene coordination in transition metal complexes
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