Neutral palladium(II) complexes with P,N Schiff-base ligands: Synthesis, characterization and catalytic oligomerisation of ethylene
摘要:
New N-functionalised 2-phosphinobenzaldimino (P boolean AND N) ligands bearing 3-picolyl, furfuryl, thiophene-2-methyl, thiophene-2-ethyl, and benzyl groups have been prepared in good yield. The 2-phosphinobenzaldimino ligands were reacted with PdCl2(COD) to give the corresponding metal complexes of the type Pd(L)Cl-2 (L = 2-phosphinobenzaldimino (P boolean AND N) ligand). All compounds were fully characterized using spectroscopic and analytical techniques, including H-1, C-13, and P-31 NMR and IR spectroscopies, mass spectrometry and elemental analysis. Selected neutral palladium complexes were evaluated as catalyst precursors in ethylene oligomerisation reactions, after activation with a co-catalyst (MMAO, EtAlCl2, or Et2AlCl). (C) 2011 Elsevier B.V. All rights reserved.
Neutral palladium(II) complexes with P,N Schiff-base ligands: Synthesis, characterization and catalytic oligomerisation of ethylene
摘要:
New N-functionalised 2-phosphinobenzaldimino (P boolean AND N) ligands bearing 3-picolyl, furfuryl, thiophene-2-methyl, thiophene-2-ethyl, and benzyl groups have been prepared in good yield. The 2-phosphinobenzaldimino ligands were reacted with PdCl2(COD) to give the corresponding metal complexes of the type Pd(L)Cl-2 (L = 2-phosphinobenzaldimino (P boolean AND N) ligand). All compounds were fully characterized using spectroscopic and analytical techniques, including H-1, C-13, and P-31 NMR and IR spectroscopies, mass spectrometry and elemental analysis. Selected neutral palladium complexes were evaluated as catalyst precursors in ethylene oligomerisation reactions, after activation with a co-catalyst (MMAO, EtAlCl2, or Et2AlCl). (C) 2011 Elsevier B.V. All rights reserved.
Neutral palladium(II) complexes with P,N Schiff-base ligands: Synthesis, characterization and application as Suzuki–Miyaura coupling catalysts
作者:Tebello Mahamo、Mokgolela M. Mogorosi、John R. Moss、Selwyn F. Mapolie、J. Chris Slootweg、Koop Lammertsma、Gregory S. Smith
DOI:10.1016/j.jorganchem.2011.12.021
日期:2012.4
Palladium(II) complexes of the general formulae [PdCl2(P∧N)] and [Pd(Me)Cl(P∧N)] were obtained from bidentate ligands bearing phosphine and imine donor groups. The complexes were shown to be highly active catalysts for the Suzuki–Miyaura cross-coupling reaction. The complexes are tolerant of a wide variety of reaction conditions such as solvent, choice of base as well as substituents on both arylboronic
Platinacycloalkane complexes containing [P,N] bidentate ligands: synthesis and decomposition studies
作者:Tebello Mahamo、John R. Moss、Selwyn F. Mapolie、Gregory S. Smith、J. Chris Slootweg、Koop Lammertsma
DOI:10.1039/c3dt52798k
日期:——
[Pt(N^P)(CH2)n] (n = 4, 6) were obtained by the reaction of [Pt(COD)(CH2)n] with the appropriate iminophosphine ligand (1a–1f). These complexes were characterised using a variety of spectroscopic and analytical techniques. X-ray structure analysis of complex 2a revealed a slightly distorted square planar geometry around platinum as a consequence of the ring strain imposed by the [P,N] chelate ring formed
Neutral palladium(II) complexes with P,N Schiff-base ligands: Synthesis, characterization and catalytic oligomerisation of ethylene
作者:Mokgolela M. Mogorosi、Tebello Mahamo、John R. Moss、Selwyn F. Mapolie、J. Chris Slootweg、Koop Lammertsma、Gregory S. Smith
DOI:10.1016/j.jorganchem.2011.07.042
日期:2011.11
New N-functionalised 2-phosphinobenzaldimino (P boolean AND N) ligands bearing 3-picolyl, furfuryl, thiophene-2-methyl, thiophene-2-ethyl, and benzyl groups have been prepared in good yield. The 2-phosphinobenzaldimino ligands were reacted with PdCl2(COD) to give the corresponding metal complexes of the type Pd(L)Cl-2 (L = 2-phosphinobenzaldimino (P boolean AND N) ligand). All compounds were fully characterized using spectroscopic and analytical techniques, including H-1, C-13, and P-31 NMR and IR spectroscopies, mass spectrometry and elemental analysis. Selected neutral palladium complexes were evaluated as catalyst precursors in ethylene oligomerisation reactions, after activation with a co-catalyst (MMAO, EtAlCl2, or Et2AlCl). (C) 2011 Elsevier B.V. All rights reserved.