Manganese(II), cobalts(II) and nickel(II) complexes of tris(2-pyridyl)phosphine and their catalytic activity toward oxidation of tetralin

Abstract

Monomeric Mn 2? , Co 2? and Ni 2? complexes of tris(2-pyridyl)phosphine (P(2-py) 3 were synthesized through the reaction of the hydrated metal(II) chlorides with P(2-py) 3 in near-quantitative yields. The solid-state structure of the Mn complex was determined by singlecrystal X-ray diffraction. All three complexes were tested as homogeneous catalysts for the oxidation of tetralin to atetralone with tert-butyl hydroperoxide (TBHP) as oxidant. The influences of temperature, solvent, catalyst molar ratio and time of the reaction on the catalyzed reactions were investigated.Electronic supplementary material The online version of this article (

Molecular Structure and Antimicrobial Activity of a Luminescent Dinuclear Silver(I) Complex of Phenyl‐bis(2‐pyridyl)phosphine

“…The ligand PhP(2‐py) 2 was synthesized by reaction of 2‐lithiopyridine, generated from treatment of n ‐butyllithium and 2‐bromopyridine, and dichlorophenylphosphine (2:1 molar ratio) in oxygen and moisture‐free Et 2 O 28…”

Design and synthesis of dinuclear cobalt(ii) complexes derived from strong π-acidic ligands: crystal structure and studies on the oxidation of sp3 C–H bonds

“…We compared the catalytic activity in the light of the reported literature 31,33,[52][53][54][55][56][57] (shown in ESI † and Table S15). Thus, the present complexes may be placed among good catalysts known for the oxidation of benzylic as well as aliphatic sp 3 C-H bonds.…”

Structure of Tris[2-(4-pyridyl)ethyl]phosphine, Tris[2-(2-pyridyl)ethyl]phosphine, and Their Chalcogenides in Solution: Dipole Moments, IR Spectroscopy, and DFT Study

“…Phosphines with pyridyl substituents at the phosphorus atom and their chalcogenide derivatives are known as polydentate ligands for the design of complex compounds due to the presence in their molecules of several coordination centers with different donor properties. Metal complexes based on pyridylphosphines ligands exhibit various types of luminescent properties [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ], possess catalytic activity [ 13 , 14 , 15 , 16 , 17 , 18 ] (in particular, the ruthenium complex with tris(2-pyridyl)phosphine oxide is a pH-dependent electrocatalyst for water oxidation [ 19 ]), act as photoinducible CO-releasing molecules [ 20 , 21 ], and have magnetic properties [ 22 , 23 , 24 ]. Tris(3-pyridyl)phosphine has been used as a structure-forming moiety for the assembly of encapsulated transition metal catalysts based on porphyrins, which have the highest activity and selectivity in hydroformylation reactions [ 25 , 26 ].…”