Synthesis and Reactivity of Metal Complexes Supported by the Tetradentate Monoanionic Ligand Bis(2-picolyl)(2-hydroxy-3,5-di-<i>tert</i>-butylbenzyl)amide (BPPA)

Chomitz, Wayne A.; Minasian, Stefan G.; Sutton, Andrew D.; Arnold, John

doi:10.1021/ic700775k

Cited by 46 publications

(28 citation statements)

References 83 publications

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“…The tetradentate monoanionic ligand from (2-hydroxy-3,5-ditert-butylbenzyl)bis(2-pyridylmethyl)amine (bzpyam) gave complexes with several metals, among which vanadium(III) [218]. V(bzpyam)(Br) 2 gave a cyclic voltammogram with a reversible oxidation and an irreversible reduction (Table 8, entry 28).…”

Section: Dinuclear Compoundsmentioning

confidence: 99%

A journey into the electrochemistry of vanadium compounds

Galloni

Conte

2015

Coordination Chemistry Reviews

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Section: Dinuclear Compoundsmentioning

confidence: 99%

A journey into the electrochemistry of vanadium compounds

Galloni

Conte

2015

Coordination Chemistry Reviews

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“…[11][12][13][14][15][16] By comparison, there has been limited use of (amine)bis(phenolato) ligands with the first row late transition metals, [17][18][19][20][21][22][23][24] whereas the chemistry of monoanionic phenoxytriamine ligands with these metals is far more developed. [25][26][27][28][29][30][31][32][33][34][35] We are interested in the development of new inexpensive, non-…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Structure, and C–C Cross‐Coupling Activity of (Amine)bis(phenolato)iron(acac) Complexes

2011

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A series of (amine)bis(phenolato)iron(III)acac complexes has been prepared and characterized. Reaction of Fe(acac)3 with the diprotonated linear tetradentate proligand N,N′‐bis(4,6‐di‐tert‐butyl‐2‐methylphenol)‐N,N′‐dimethyl‐1,2‐diaminoethane, H2[L1], and tripodal tetradentate ligand precursors dimethylaminoethylamino‐N,N‐bis(2‐methylene‐4,6‐di‐tert‐butylphenol), H2[L2], dimethylaminoethylamino‐N,N‐bis(2‐methylene‐4‐methyl‐6‐tert‐butylphenol), H2[L3], 2‐methoxyethylamino‐N,N‐bis(2‐methylene‐4,6‐di‐tert‐butylphenol), H2[L4], 2‐methoxyethylamino‐N,N‐bis(2‐methylene‐4‐methyl‐6‐tert‐butylphenol), H2[L5], and 2‐methoxyethylamino‐N,N‐bis(2‐methylene‐4,6‐dimethylphenol), H2[L6], produces the distorted octahedral FeIII complexes [L1]Fe(acac) (1), [L2]Fe(acac) (2), [L3]Fe(acac) (3), [L4]Fe(acac) (4), [L5]Fe(acac) (5), and [L6]Fe(acac) (6). In all of these complexes, the phenolato oxygen atoms are cis‐oriented. The paramagnetic FeIII complexes 1–6 were also characterized by UV/Vis and IR spectroscopy, mass spectrometry, cyclic voltammetry, and magnetic measurements. Single crystal X‐ray molecular structures have been determined for complexes 1, 2, 3, 5, and the proligand H2[L6]. Preliminary investigations of complexes 1–6 for catalytic cross‐coupling reactions of aryl Grignard reagents with cyclic and acyclic secondary alkyl halides and benzyl halides were performed. While the activity for cyclohexyl chlorides and bromides was high, cross‐coupling of benzyl halides was moderate and 2‐bromo‐ and 2‐chlorobutane gave poor yields of cross‐coupled product.

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“…Theligand can be readily derivatised to form tridentate ligands [2] with various functionalities bonded to the central nitrogen atom,including that utilised in this study [3]. The ligands of 2,2-dipyridylamine and derivatives thereof have an affinity for various transition metals such as platinum [4],iron [5], palladium [6] and avariety of others [7][8]. The interest in these ligands and complexes thereof, is due to their potential applications as anti-cancer agents [9][10] and catalysts [11][12][13].T he dichloro-N,N-bis(pyridine-2-ylmethyl)cyclohexamino copper(II) (Figure 1) complex crystallized in the monoclinic space group P2 1 /c ,with four molecules per unit cell.…”

Section: Discussionmentioning

confidence: 99%