1
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Ariafard A, Longhurst M, Swiegers GF, Stranger R. Mechanisms of Mn(V)-Oxo to Mn(IV)-Oxyl Conversion: From Closed-Cubane Photosystem II to Mn(V) Catalysts and the Role of the Entering Ligands. Chemistry 2024; 30:e202400396. [PMID: 38659321 DOI: 10.1002/chem.202400396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/02/2024] [Accepted: 04/20/2024] [Indexed: 04/26/2024]
Abstract
The low activation barrier for O-O coupling in the closed-cubane Oxygen-Evolving Centre (OEC) of Photosystem II (PSII) requires water coordination with the Mn4 'dangler' ion in the Mn(V)-oxo fragment. This coordination transforms the Mn(V)-oxo complex into a more reactive Mn4(IV)-oxyl species, enhancing O-O coupling. This study explains the mechanism behind the coordination and indicates that in the most stable form of the OEC, the Mn4 fragment adopts a trigonal bipyramidal geometry but needs to transition to a square pyramidal form to be activated for O-O coupling. This transition stabilizes the Mn4 dxy orbital, enabling electron transfer from the oxo ligand to the dxy orbital, converting the oxo ligand into an oxyl species. The role of the water is to coordinate with the square pyramidal structure, reducing the energy gap between the oxo and oxyl forms, thereby lowering the activation energy for O-O coupling. This mechanism applies not only to the OEC system but also to other Mn(V)-based catalysts. For other catalysts, ligands such as OH- stabilize the Mn(IV)-oxyl species better than water, improving catalyst activation for reactions like C-H bond activation. This study is the first to explain the Mn(V)-oxo to Mn(IV)-oxyl conversion, providing a new foundation for Mn-based catalyst design.
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Affiliation(s)
- Alireza Ariafard
- Research School of Chemistry, Australian National University, Canberra, Australia
| | - Matthew Longhurst
- Intelligent Polymer Research Institute, University of Wollongong, Wollongong, Australia
| | - Gerhard F Swiegers
- Intelligent Polymer Research Institute, University of Wollongong, Wollongong, Australia
| | - Robert Stranger
- Research School of Chemistry, Australian National University, Canberra, Australia
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2
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Brunclik SA, Grotemeyer EN, Aghaei Z, Mian MR, Jackson TA. Investigating Ligand Sphere Perturbations on Mn III-Alkylperoxo Complexes. Molecules 2024; 29:1849. [PMID: 38675669 PMCID: PMC11053420 DOI: 10.3390/molecules29081849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Manganese catalysts that activate hydrogen peroxide carry out several different hydrocarbon oxidation reactions with high stereoselectivity. The commonly proposed mechanism for these reactions involves a key manganese(III)-hydroperoxo intermediate, which decays via O-O bond heterolysis to generate a Mn(V)-oxo species that institutes substrate oxidation. Due to the scarcity of characterized MnIII-hydroperoxo complexes, MnIII-alkylperoxo complexes are employed to understand factors that affect the mechanism of the O-O cleavage. Herein, we report a series of novel complexes, including two room-temperature-stable MnIII-alkylperoxo species, supported by a new amide-containing pentadentate ligand (6Medpaq5NO2). We use a combination of spectroscopic methods and density functional theory computations to probe the effects of the electronic changes in the ligand sphere trans to the hydroxo and alkylperoxo units to thermal stability and reactivity. The structural characterizations for both MnII(OTf)(6Medpaq5NO2) and [MnIII(OH)(6Medpaq5NO2)](OTf) were obtained via single-crystal X-ray crystallography. A perturbation to the ligand sphere allowed for a marked increase in reactivity towards an organic substrate, a modest change in the distribution of the O-O cleavage products from homolytic and heterolytic pathways, and little change in thermal stability.
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Affiliation(s)
- Samuel A. Brunclik
- Department of Chemistry and Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, KS 66045, USA; (S.A.B.); (E.N.G.); (Z.A.)
| | - Elizabeth N. Grotemeyer
- Department of Chemistry and Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, KS 66045, USA; (S.A.B.); (E.N.G.); (Z.A.)
| | - Zahra Aghaei
- Department of Chemistry and Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, KS 66045, USA; (S.A.B.); (E.N.G.); (Z.A.)
| | - Mohammad Rasel Mian
- Protein Structure and X-ray Crystallography Laboratory, University of Kansas, Lawrence, KS 66045, USA;
| | - Timothy A. Jackson
- Department of Chemistry and Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, KS 66045, USA; (S.A.B.); (E.N.G.); (Z.A.)
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3
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Chen J, Zhang J, Sun Y, Xu Y, Yang Y, Lee YM, Ji W, Wang B, Nam W, Wang B. Mononuclear Non-Heme Manganese-Catalyzed Enantioselective cis-Dihydroxylation of Alkenes Modeling Rieske Dioxygenases. J Am Chem Soc 2023; 145:27626-27638. [PMID: 38064642 DOI: 10.1021/jacs.3c09508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The practical catalytic enantioselective cis-dihydroxylation of olefins that utilize earth-abundant first-row transition metal catalysts under environmentally friendly conditions is an important yet challenging task. Inspired by the cis-dihydroxylation reactions catalyzed by Rieske dioxygenases and non-heme iron models, we report the biologically inspired cis-dihydroxylation catalysis that employs an inexpensive and readily available mononuclear non-heme manganese complex bearing a tetradentate nitrogen-donor ligand and aqueous hydrogen peroxide (H2O2) and potassium peroxymonosulfate (KHSO5) as terminal oxidants. A wide range of olefins are efficiently oxidized to enantioenriched cis-diols in practically useful yields with excellent cis-dihydroxylation selectivity and enantioselectivity (up to 99% ee). Mechanistic studies, such as isotopically 18O-labeled water experiments, and density functional theory (DFT) calculations support that a manganese(V)-oxo-hydroxo (HO-MnV═O) species, which is formed via the water-assisted heterolytic O-O bond cleavage of putative manganese(III)-hydroperoxide and manganese(III)-peroxysulfate precursors, is the active oxidant that effects the cis-dihydroxylation of olefins; this is reminiscent of the frequently postulated iron(V)-oxo-hydroxo (HO-FeV═O) species in the catalytic arene and alkene cis-dihydroxylation reactions by Rieske dioxygenases and synthetic non-heme iron models. Further, DFT calculations for the mechanism of the HO-MnV═O-mediated enantioselective cis-dihydroxylation of olefins reveal that the first oxo attack step controls the enantioselectivity, which exhibits a high preference for cis-dihydroxylation over epoxidation. In this study, we are able to replicate both the catalytic function and the key chemical principles of Rieske dioxygenases in mononuclear non-heme manganese-catalyzed enantioselective cis-dihydroxylation of olefins.
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Affiliation(s)
- Jie Chen
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Jinyan Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ying Sun
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yuankai Xu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yinan Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Wenhua Ji
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Binju Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Bin Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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4
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Ottenbacher RV, Bryliakova AA, Kurganskii VI, Prikhodchenko PV, Medvedev AG, Bryliakov KP. Bioinspired Non-Heme Mn Catalysts for Regio- and Stereoselective Oxyfunctionalizations with H 2 O 2. Chemistry 2023; 29:e202302772. [PMID: 37642264 DOI: 10.1002/chem.202302772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 08/31/2023]
Abstract
In recent years, metalloenzymes-mediated highly selective oxidations of organic substrates under mild conditions have been inspiration for developing synthetic bioinspired catalyst systems, capable of conducting such processes in the laboratory (and, in the future, in industry), relying on easy-to-handle and environmentally benign oxidants such as H2 O2 . To date, non-heme manganese complexes with chiral bis-amino-bis-pyridylmethyl and structurally related ligands are considered as possessing the highest synthetic potential, having demonstrated the ability to mediate a variety of chemo- and stereoselective oxidative transformations, such as epoxidations, C(sp3 )-H hydroxylations and ketonizations, oxidative desymmetrizations, kinetic resolutions, etc. Furthermore, in the past few years non-heme Mn based catalysts have become the major platform for studies focused on getting insight into the molecular mechanisms of oxidant activation and (stereo)selective oxygen transfer, testing non-traditional hydroperoxide oxidants, engineering catalytic sites with enzyme-like substrate recognition-based selectivity, exploration of catalytic regioselectivity trends in the oxidation of biologically active substrates of natural origin. This contribution summarizes the progress in manganese catalyzed C-H oxygenative transformations of organic substrates, achieved essentially in the past 5 years (late 2018-2023).
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Affiliation(s)
- Roman V Ottenbacher
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russian Federation
| | - Anna A Bryliakova
- Novosibirsk State University, Pirogova 2, Novosibirsk, 630090, Russian Federation
- Zelinsky Institute of Organic Chemistry RAS, Leninsky Pr. 47, Moscow, 119991, Russian Federation
| | - Vladimir I Kurganskii
- Zelinsky Institute of Organic Chemistry RAS, Leninsky Pr. 47, Moscow, 119991, Russian Federation
| | - Petr V Prikhodchenko
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, 119991, Russian Federation
| | - Alexander G Medvedev
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, 119991, Russian Federation
| | - Konstantin P Bryliakov
- Zelinsky Institute of Organic Chemistry RAS, Leninsky Pr. 47, Moscow, 119991, Russian Federation
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5
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Brunclik SA, Opalade AA, Jackson TA. Electronic structure contributions to O-O bond cleavage reactions for Mn III-alkylperoxo complexes. Dalton Trans 2023; 52:13878-13894. [PMID: 37526920 DOI: 10.1039/d3dt01672b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Synthetic manganese catalysts that activate hydrogen peroxide perform a variety of hydrocarbon oxidation reactions. The most commonly proposed mechanism for these catalysts involves the generation of a manganese(III)-hydroperoxo intermediate that decays via heterolytic O-O bond cleavage to generate a Mn(V)-oxo species that initiates substrate oxidation. Due to the paucity of well-defined MnIII-hydroperoxo complexes, MnIII-alkylperoxo complexes are often employed to understand the factors that affect the O-O cleavage reaction. Herein, we examine the decay pathways of the MnIII-alkylperoxo complexes [MnIII(OOtBu)(6Medpaq)]+ and [MnIII(OOtBu)(N4S)]+, which have distinct coordination environments (N5- and N4S-, respectively). Through the use of density functional theory (DFT) calculations and comparisons with published experimental data, we are able to rationalize the differences in the decay pathways of these complexes. For the [MnIII(OOtBu)(N4S)]+ system, O-O homolysis proceeds via a two-state mechanism that involves a crossing from the quintet reactant to a triplet state. A high energy singlet state discourages O-O heterolysis for this complex. In contrast, while quintet-triplet crossing is unfavorable for [MnIII(OOtBu)(6Medpaq)]+, a relatively low-energy single state accounts for the observation of both O-O homolysis and heterolysis products for this complex. The origins of these differences in decay pathways are linked to variations in the electronic structures of the MnIII-alkylperoxo complexes.
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Affiliation(s)
- Samuel A Brunclik
- The University of Kansas, Department of Chemistry and Center for Environmentally Beneficial Catalysis, 1567 Irving Hill Road, Lawrence, KS 66045, USA.
| | - Adedamola A Opalade
- The University of Kansas, Department of Chemistry and Center for Environmentally Beneficial Catalysis, 1567 Irving Hill Road, Lawrence, KS 66045, USA.
| | - Timothy A Jackson
- The University of Kansas, Department of Chemistry and Center for Environmentally Beneficial Catalysis, 1567 Irving Hill Road, Lawrence, KS 66045, USA.
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6
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Wu Z, Zhang X, Gao L, Sun D, Zhao Y, Nam W, Wang Y. Elusive Active Intermediates and Reaction Mechanisms of ortho-/ ipso-Hydroxylation of Benzoic Acid by Hydrogen Peroxide Mediated by Bioinspired Iron(II) Catalysts. Inorg Chem 2023; 62:14261-14278. [PMID: 37604675 DOI: 10.1021/acs.inorgchem.3c01576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Aromatic hydroxylation of benzoic acids (BzOH) to salicylates and phenolates is fundamentally interesting in industrial chemistry. However, key mechanistic uncertainties and dichotomies remain after decades of effort. Herein, the elusive mechanism of the competitive ortho-/ipso-hydroxylation of BzOH by H2O2 mediated by a nonheme iron(II) catalyst was comprehensively investigated using density functional theory calculations. Results revealed that the long-postulated FeV(O)(anti-BzO) oxidant is an FeIV(O)(anti-BzO•) species 2 (anti- and syn- are defined by the orientation of the carboxyl oxygen of BzO to the oxo), which rules out the noted two-oxidant mechanism proposed previously. We propose a new mechanism in which, following the formation of an FeV(O)(syn-BzO) species (3) and its electromer FeIV(O)(syn-BzO•) (3'), 3/3' either converts to salicylate and phenolate via intramolecular self-hydroxylation (route A) or acts as an oxidant to oxygenate another BzOH to generate the same products (route B). In route A, the rotation of the BzO group along the C-O bond forms 2, in which the BzO group is orientated by π-π stacking interactions. An electrophilic ipso-addition forms a phenolate by concomitant decarboxylation or an ortho-attack forms a cationic complex, which readily undergoes an NIH shift and a BzOH-assisted proton shift to form a salicylate. In route B, 3 oxidizes an additional BzOH molecule directed by hydrogen bonding and π-π stacking interactions. In both routes, selectivity is determined by the chemical property of the BzO ring. These mechanistic findings provide a clear mechanistic scenario and enrich the knowledge of hydroxylation of aromatic acids.
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Affiliation(s)
- Zhimin Wu
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, Zhejiang, China
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Xuan Zhang
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, Zhejiang, China
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Lanping Gao
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, Zhejiang, China
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Dongru Sun
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, Zhejiang, China
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Yufen Zhao
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, Zhejiang, China
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yong Wang
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, Zhejiang, China
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
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7
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Ajaykamal T, Palaniandavar M. Mononuclear nickel(ii)-flavonolate complexes of tetradentate tripodal 4N ligands as structural and functional models for quercetin 2,4-dioxygenase: structures, spectra, redox and dioxygenase activity. RSC Adv 2023; 13:24674-24690. [PMID: 37601601 PMCID: PMC10436029 DOI: 10.1039/d3ra04834a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/01/2023] [Indexed: 08/22/2023] Open
Abstract
Three new nickel(ii)-flavonolate complexes of the type [Ni(L)(fla)](ClO4) 1-3, where L is the tripodal 4N ligand tris(pyrid-2-ylmethyl)amine (tpa, L1) or (pyrid-2-ylmethyl)bis(6-methylpyrid-2-ylmethyl)amine (6-Me2-tpa, L2) or tris(N-Et-benzimidazol-2-ylmethyl)amine (Et-ntb, L3), have been isolated as functional models for Ni(ii)-containing quercetin 2,4-dioxygenase. Single crystal X-ray structures of 1 and 3 reveal that Ni(ii) is involved in π-back bonding with flavonolate (fla-), as evident from enhancement in C[double bond, length as m-dash]O bond length upon coordination [H(fla), 1.232(3); 1, 1.245(7); 3, 1.262(8) Å]. More asymmetric chelation of fla- in 3 than in 1 [Δd = (Ni-Ocarbonyl - Ni-Oenolate): 1, 0.126; 3, 0.182 Å] corresponds to lower π-delocalization in 3 with electron-releasing N-Et substituent. The optimized structures of 1-3 and their geometrical isomers have been computed by DFT methods. The HOMO and LUMO, both localized on Ni(ii)-bound fla-, are highly conjugated bonding π- and antibonding π*-orbitals respectively. They are located higher in energy than the Ni(ii)-based MOs (HOMO-1, dx2-y2; HOMO-2/6, dz2), revealing that the Ni(ii)-bound fla- rather than Ni(ii) would undergo oxidation upon exposure to dioxygen. The results of computational studies, in combination with spectral and electrochemical studies, support the involvement of redox-inactive Ni(ii) in π-back bonding with fla-, tuning the π-delocalization in fla- and hence its activation. Upon exposure to dioxygen, all the flavonolate adducts in DMF solution decompose to produce CO and depside, which then is hydrolyzed to give the corresponding acids at 70 °C. The highest rate of dioxygenase reactivity of 3 (kO2: 3 (29.10 ± 0.16) > 1 (16.67 ± 0.70) > 2 (1.81 ± 0.04 × 10-1 M-1 s-1)), determined by monitoring the disappearance of the LMCT band in the range 440-450 nm, is ascribed to the electron-releasing N-Et substituent on bzim ring, which decreases the π-delocalization in fla- and enhances its activation.
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Affiliation(s)
- Tamilarasan Ajaykamal
- Department of Chemistry, Bharathidasan University Tiruchirapalli 620 024 Tamil Nadu India +91-431-2407043 +91-431-2407125
| | - Mallayan Palaniandavar
- Department of Chemistry, Bharathidasan University Tiruchirapalli 620 024 Tamil Nadu India +91-431-2407043 +91-431-2407125
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8
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Schlachta TP, Kühn FE. Cyclic iron tetra N-heterocyclic carbenes: synthesis, properties, reactivity, and catalysis. Chem Soc Rev 2023; 52:2238-2277. [PMID: 36852959 DOI: 10.1039/d2cs01064j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Cyclic iron tetracarbenes are an emerging class of macrocyclic iron N-heterocyclic carbene (NHC) complexes. They can be considered as an organometallic compound class inspired by their heme analogs, however, their electronic properties differ, e.g. due to the very strong σ-donation of the four combined NHCs in equatorial coordination. The ligand framework of iron tetracarbenes can be readily modified, allowing fine-tuning of the structural and electronic properties of the complexes. The properties of iron tetracarbene complexes are discussed quantitatively and correlations are established. The electronic nature of the tetracarbene ligand allows the isolation of uncommon iron(III) and iron(IV) species and reveals a unique reactivity. Iron tetracarbenes are successfully applied in C-H activation, CO2 reduction, aziridination and epoxidation catalysis and mechanisms as well as decomposition pathways are described. This review will help researchers evaluate the structural and electronic properties of their complexes and target their catalyst properties through ligand design.
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Affiliation(s)
- Tim P Schlachta
- Technical University of Munich, School of Natural Sciences, Department of Chemistry and Catalysis Research Center, Molecular Catalysis, Lichtenbergstraße 4, 85748 Garching, Germany.
| | - Fritz E Kühn
- Technical University of Munich, School of Natural Sciences, Department of Chemistry and Catalysis Research Center, Molecular Catalysis, Lichtenbergstraße 4, 85748 Garching, Germany.
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9
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Lubov DP, Shashkov MV, Nefedov AA, Bryliakov KP. A Predictably Selective Palladium-Catalyzed Aliphatic C-H Oxygenation. Org Lett 2023; 25:1359-1363. [PMID: 36825896 DOI: 10.1021/acs.orglett.2c04371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Direct oxygenation of nonactivated aliphatic C(sp3)-H groups with peroxycarboxylic acids in the presence of palladium tris(pyridylmethyl)amine complex (0.6 mol %) is reported, providing the corresponding hydroxylated derivatives in up to 94% yields. The oxidation of 3° C-H groups occurs stereospecifically, with the catalyst system demonstrating extremely high sensitivity to electronic effects (adamantane oxidation: 3°:2° up to >300). This suggests potential applications for the 3°-regioselective oxidative functionalization of complex molecules of natural origin.
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Affiliation(s)
- Dmitry P Lubov
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation.,Novosibirsk State University, Pirogova 1, Novosibirsk 630090, Russia
| | - Mikhail V Shashkov
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
| | - Andrey A Nefedov
- Novosibirsk State University, Pirogova 1, Novosibirsk 630090, Russia.,Vorozhtsov Novosibirsk Institute of Organic Chemistry, Pr. Lavrentieva 9, Novosibirsk 630090, Russia
| | - Konstantin P Bryliakov
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation.,Novosibirsk State University, Pirogova 1, Novosibirsk 630090, Russia
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10
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Biologically inspired nonheme iron complex-catalyzed cis-dihydroxylation of alkenes modeling Rieske dioxygenases. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Mekhail MA, Pota K, Kharel S, Freire DM, Green KN. Pyridine modifications regulate the electronics and reactivity of Fe-pyridinophane complexes. Dalton Trans 2023; 52:892-901. [PMID: 36537287 PMCID: PMC10903111 DOI: 10.1039/d2dt03485a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
12-Membered pyridinophanes are the focus of many studies as biological mimics, chelators, and catalytic precursors. Therefore, the desire to tune the reactivity of pyridinophanes to better control the applications of derivative metal complexes has inspired many structure-activity relationship studies. However, the separation of structural versus electronic changes imparted by ligand modification has made these structure-activity relationship studies of transition metal catalysts challenging to define. In this work we show that 4-substitution of the pyridine ring in 12-membered tetra-aza pyridinophanes successfully provides a regulatory handle on the electronic properties of the metal center and, therefore, the catalytic C-C coupling activity of the respective iron complexes. The C-C coupling reaction catalyzed by Fe(L1-L6) provides a range of yields (32-58%) that directly correlate with iron redox potentials (ΔE1/2 = 152 mV) and metal binding constants (Δlog β = 3.45), while the geometry of the complexes was virtually indistinguishable. These are the first results to definitively show the redox potential and metal binding as independent properties from the coordination chemistry in one ligand series. Adjustments to these chemical properties were then shown to provide a regulatory handle for the C-C coupling reactivity tuned via pyridine substitution in pyridinophanes.
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Affiliation(s)
- Magy A Mekhail
- Department of Chemistry and Biochemistry, Texas Christian University, Fort Worth, Texas 76129, USA.
| | - Kristof Pota
- Department of Chemistry and Biochemistry, Texas Christian University, Fort Worth, Texas 76129, USA.
| | - Sugam Kharel
- Department of Chemistry and Biochemistry, Texas Christian University, Fort Worth, Texas 76129, USA.
| | - David M Freire
- Department of Chemistry and Biochemistry, Texas Christian University, Fort Worth, Texas 76129, USA.
| | - Kayla N Green
- Department of Chemistry and Biochemistry, Texas Christian University, Fort Worth, Texas 76129, USA.
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12
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Ethylbenzene Hydroperoxide: An efficient oxidizing agent for diastereoselective synthesis of Spiroepoxy oxindoles. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Direct Regio- and Stereoselective Mono- and Polyoxyfunctionalization of Estrone Derivatives at C(sp3)-H Bonds. J Catal 2022. [DOI: 10.1016/j.jcat.2022.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Li S, Li H, Tung CH, Liu L. Practical and Selective Bio-Inspired Iron-Catalyzed Oxidation of Si–H Bonds to Diversely Functionalized Organosilanols. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02678] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Song Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
- School of Ocean, Shandong University, Weihai 264209, China
| | - Haibei Li
- School of Ocean, Shandong University, Weihai 264209, China
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Lei Liu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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15
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Malik DD, Lee Y, Nam W. Identification of a cobalt(
IV
)–oxo intermediate as an active oxidant in catalytic oxidation reactions. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Deesha D. Malik
- Department of Chemistry and Nano Science Ewha Womans University Seoul South Korea
| | - Yong‐Min Lee
- Department of Chemistry and Nano Science Ewha Womans University Seoul South Korea
| | - Wonwoo Nam
- Department of Chemistry and Nano Science Ewha Womans University Seoul South Korea
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16
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Chen J, Yao J, Li XX, Wang Y, Song W, Cho KB, Lee YM, Nam W, Wang B. Bromoacetic Acid-Promoted Nonheme Manganese-Catalyzed Alkane Hydroxylation Inspired by α-Ketoglutarate-Dependent Oxygenases. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jie Chen
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Jinping Yao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Xiao-Xi Li
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Yan Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Wenxun Song
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Kyung-Bin Cho
- Department of Chemistry, Jeonbuk National University, Jeonju 54896, Korea
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Bin Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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17
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Das K, Waiba S, Jana A, Maji B. Manganese-catalyzed hydrogenation, dehydrogenation, and hydroelementation reactions. Chem Soc Rev 2022; 51:4386-4464. [PMID: 35583150 DOI: 10.1039/d2cs00093h] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The emerging field of organometallic catalysis has shifted towards research on Earth-abundant transition metals due to their ready availability, economic advantage, and novel properties. In this case, manganese, the third most abundant transition-metal in the Earth's crust, has emerged as one of the leading competitors. Accordingly, a large number of molecularly-defined Mn-complexes has been synthesized and employed for hydrogenation, dehydrogenation, and hydroelementation reactions. In this regard, catalyst design is based on three pillars, namely, metal-ligand bifunctionality, ligand hemilability, and redox activity. Indeed, the developed catalysts not only differ in the number of chelating atoms they possess but also their working principles, thereby leading to different turnover numbers for product molecules. Hence, the critical assessment of molecularly defined manganese catalysts in terms of chelating atoms, reaction conditions, mechanistic pathway, and product turnover number is significant. Herein, we analyze manganese complexes for their catalytic activity, versatility to allow multiple transformations and their routes to convert substrates to target molecules. This article will also be helpful to get significant insight into ligand design, thereby aiding catalysis design.
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Affiliation(s)
- Kuhali Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Satyadeep Waiba
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Akash Jana
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Biplab Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
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18
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C-Heterogenized Re Nanoparticles as Effective Catalysts for the Reduction of 4-Nitrophenol and Oxidation of 1-Phenylethanol. Catalysts 2022. [DOI: 10.3390/catal12030285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Rhenium nanoparticles (Re NPs) supported on Norit (activated carbon—C) and graphene (G) were prepared by a solvothermal method under microwave irradiation (MW). The synthesised heterogeneous catalysts were characterised and tested as reduction and oxidation catalysts, highlighting their dual catalytic behaviour. In the first case, they were used, for the first time, to reduce 4-nitrophenol, in aqueous medium, under MW irradiation. Re catalysts were easily recovered by centrifugation and recycled up to six times without significant activity loss. However, the same Re catalysts in MW-assisted oxidation of 1-phenylethanol with no added solvent experienced a significant loss of activity when recycled. The higher activity of the rhenium nanoparticles supported on graphene (Re/G) catalyst in both reactions was assigned to the higher dispersion and smaller particle size of Re NPs when graphene is the support.
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19
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Lin J, Wang F, Tian J, Zhang J, Wang Y, Sun W. Theoretical and experimental investigations of the enantioselective epoxidation of olefins catalyzed by manganese complexes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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20
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Zima AM, Lyakin OY, Bryliakova AA, Babushkin DE, Bryliakov KP, Talsi EP. Reactivity vs. Selectivity of Biomimetic Catalyst Systems of the Fe(PDP) Family through the Nature and Spin State of the Active Iron-Oxygen Species. CHEM REC 2022; 22:e202100334. [PMID: 35142426 DOI: 10.1002/tcr.202100334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/21/2022] [Indexed: 12/12/2022]
Abstract
Catalytic approaches to late-stage creation of new C-O bonds, especially via oxygenation of particular C-H groups in complex organic molecules, provide challenging tools for the synthesis of biologically active compounds and candidate drugs. In the last decade, significant efforts were invested in designing bioinspired iron based catalyst systems, capable of conducting selective oxidations of organic compounds. The key role of the oxygen-transferring high-valent iron-oxygen species in selective oxygenation is now well established; the next logical step would be gaining insight into the factors governing the oxidation chemo- and stereoselectivity, in relation to the peculiarities of their electronic structure, which would allow introducing the desired level of predictability into those catalytic transformations. In this Personal Account we analyze recent data on the reactivity of bioinspired formally oxoiron(V) catalytically active sites toward organic substrates having C=C and C(sp3 )-H groups. While the majority of reported oxoiron(V) active species are low-spin (S=1/2) complexes, the presence of strong electron-donating groups (NR1 R2 ) in the ligand backbone favors the high-spin (S=3/2) ground state. Remarkably, the high-spin perferryl species exhibit higher chemo-, regio-, and stereoselectivity in the oxidations than their low-spin counterparts, thus witnessing the significance of these subtle electronic effects for the selectivity of oxidations conducted by bioinspired catalysts of the Fe(PDP) family.
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Affiliation(s)
- Alexandra M Zima
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russia
| | - Oleg Y Lyakin
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russia
| | - Anna A Bryliakova
- Novosibirsk State University, Pirogova 1, Novosibirsk, 630090, Russia.,Novosibirsk R&D Center, Inzhenernaya 20, Novosibirsk, 630090, Russia
| | - Dmitrii E Babushkin
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russia
| | | | - Evgenii P Talsi
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russia
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21
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Vicens L, Olivo G, Costas M. Remote Amino Acid Recognition Enables Effective Hydrogen Peroxide Activation at a Manganese Oxidation Catalyst. Angew Chem Int Ed Engl 2022; 61:e202114932. [PMID: 34854188 PMCID: PMC9304166 DOI: 10.1002/anie.202114932] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Indexed: 12/14/2022]
Abstract
Precise delivery of a proton plays a key role in O2 activation at iron oxygenases, enabling the crucial O-O cleavage step that generates the oxidizing high-valent metal-oxo species. Such a proton is delivered by acidic residues that may either directly bind the iron center or lie in its second coordination sphere. Herein, a supramolecular strategy for enzyme-like H2 O2 activation at a biologically inspired manganese catalyst, with a nearly stoichiometric amount (1-1.5 equiv) of a carboxylic acid is disclosed. Key for this strategy is the incorporation of an α,ω-amino acid in the second coordination sphere of a chiral catalyst via remote ammonium-crown ether recognition. The properly positioned carboxylic acid function enables effective activation of hydrogen peroxide, leading to catalytic asymmetric epoxidation. Modulation of both amino acid and catalyst structure can tune the efficiency and the enantioselectivity of the reaction, and a study on the oxidative degradation pathway of the system is presented.
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Affiliation(s)
- Laia Vicens
- Institut de Química Computacional i Catàlisi (IQCC)Departament de QuímicaUniversitat de GironaCampus Montilivi17071Girona, CataloniaSpain
| | - Giorgio Olivo
- Institut de Química Computacional i Catàlisi (IQCC)Departament de QuímicaUniversitat de GironaCampus Montilivi17071Girona, CataloniaSpain
- Dipartamento di ChimicaUniversità “La Sapienza” di RomaPiazzale Aldo Moro 500185RomeItaly
| | - Miquel Costas
- Institut de Química Computacional i Catàlisi (IQCC)Departament de QuímicaUniversitat de GironaCampus Montilivi17071Girona, CataloniaSpain
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22
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Vicens L, Olivo G, Costas M. Remote Amino Acid Recognition Enables Effective Hydrogen Peroxide Activation at a Manganese Oxidation Catalyst. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Laia Vicens
- Institut de Química Computacional i Catàlisi (IQCC) Departament de Química Universitat de Girona Campus Montilivi 17071 Girona, Catalonia Spain
| | - Giorgio Olivo
- Institut de Química Computacional i Catàlisi (IQCC) Departament de Química Universitat de Girona Campus Montilivi 17071 Girona, Catalonia Spain
- Dipartamento di Chimica Università “La Sapienza” di Roma Piazzale Aldo Moro 5 00185 Rome Italy
| | - Miquel Costas
- Institut de Química Computacional i Catàlisi (IQCC) Departament de Química Universitat de Girona Campus Montilivi 17071 Girona, Catalonia Spain
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23
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Zámbó GG, Schlagintweit JF, Reich RM, Kühn FE. Organometallic 3d transition metal NHC complexes in oxidation catalysis. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00127f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of processes for the selective oxidation of hydrocarbons is a major focus in catalysis research. Making this process simultaneously environmentally friendly is still challenging. 3d transition metals are...
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24
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Uvarova MA, Nefedov SE. Formation of a Cluster with the $${\text{M}}_{4}^{{{\text{II}}}}{\text{M}}_{2}^{{{\text{III}}}}$$ Metal Core upon the Oxidation of Manganese(II) Cymantrenecarboxylate Adduct with Air Oxygen in Tetrahydrofuran. RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s1070328421110051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Tian J, Lin J, Zhang J, Xia C, Sun W. Asymmetric Epoxidation of Olefins Catalyzed by Substituted Aminobenzimidazole Manganese Complexes Derived from
L
‐Proline. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Jing Tian
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Center for Excellence in Molecular Synthesis Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Jin Lin
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Center for Excellence in Molecular Synthesis Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Jisheng Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Center for Excellence in Molecular Synthesis Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Center for Excellence in Molecular Synthesis Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Center for Excellence in Molecular Synthesis Suzhou Research Institute of LICP Lanzhou Institute of Chemical Physics (LICP) Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
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26
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Guo M, Zhang J, Zhang L, Lee YM, Fukuzumi S, Nam W. Enthalpy-Entropy Compensation Effect in Oxidation Reactions by Manganese(IV)-Oxo Porphyrins and Nonheme Iron(IV)-Oxo Models. J Am Chem Soc 2021; 143:18559-18570. [PMID: 34723505 DOI: 10.1021/jacs.1c08198] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
"Enthalpy-Entropy Compensation Effect" (EECE) is ubiquitous in chemical reactions; however, such an EECE has been rarely explored in biomimetic oxidation reactions. In this study, six manganese(IV)-oxo complexes bearing electron-rich and -deficient porphyrins are synthesized and investigated in various oxidation reactions, such as hydrogen atom transfer (HAT), oxygen atom transfer (OAT), and electron-transfer (ET) reactions. First, all of the six Mn(IV)-oxo porphyrins are highly reactive in the HAT, OAT, and ET reactions. Interestingly, we have observed a reversed reactivity in the HAT and OAT reactions by the electron-rich and -deficient Mn(IV)-oxo porphyrins, depending on reaction temperatures, but not in the ET reactions; the electron-rich Mn(IV)-oxo porphyrins are more reactive than the electron-deficient Mn(IV)-oxo porphyrins at high temperature (e.g., 0 °C), whereas at low temperature (e.g., -60 °C), the electron-deficient Mn(IV)-oxo porphyrins are more reactive than the electron-rich Mn(IV)-oxo porphyrins. Such a reversed reactivity between the electron-rich and -deficient Mn(IV)-oxo porphyrins depending on reaction temperatures is rationalized with EECE; that is, the lower is the activation enthalpy, the more negative is the activation entropy, and vice versa. Interestingly, a unified linear correlation between the activation enthalpies and the activation entropies is observed in the HAT and OAT reactions of the Mn(IV)-oxo porphyrins. Moreover, from the previously reported HAT reactions of nonheme Fe(IV)-oxo complexes, a linear correlation between the activation enthalpies and the activation entropies is also observed. To the best of our knowledge, we report the first detailed mechanistic study of EECE in the oxidation reactions by synthetic high-valent metal-oxo complexes.
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Affiliation(s)
- Mian Guo
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea.,College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Jisheng Zhang
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Lina Zhang
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea.,Faculty of Science and Engineering, Meijo University, Nagoya, Aichi 468-8502, Japan
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea.,School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
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27
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Mn(III)-Porphyrin Immobilized on the Graphene Oxide-Magnetite Nanocomposite as an Efficient Heterogeneous Catalyst for the Epoxidation of Alkenes. Catal Letters 2021. [DOI: 10.1007/s10562-021-03827-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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28
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Di Berto Mancini M, Del Gelsomino A, Di Stefano S, Frateloreto F, Lapi A, Lanzalunga O, Olivo G, Sajeva S. Change of Selectivity in C-H Functionalization Promoted by Nonheme Iron(IV)-oxo Complexes by the Effect of the N-hydroxyphthalimide HAT Mediator. ACS OMEGA 2021; 6:26428-26438. [PMID: 34661000 PMCID: PMC8515612 DOI: 10.1021/acsomega.1c03679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
A kinetic analysis of the hydrogen atom transfer (HAT) reactions from a series of organic compounds to the iron(IV)-oxo complex [(N4Py)FeIV(O)]2+ and to the phthalimide N-oxyl radical (PINO) has been carried out. The results indicate that a higher activating effect of α-heteroatoms toward the HAT from C-H bonds is observed with the more electrophilic PINO radical. When the N-hydroxy precursor of PINO, N-hydroxyphthalimide (NHPI), is used as a HAT mediator in the oxidation promoted by [(N4Py)FeIV(O)]2+, significant differences in terms of selectivity have been found. Product studies of the competitive oxidations of primary and secondary aliphatic alcohols (1-decanol, cyclopentanol, and cyclohexanol) with alkylaromatics (ethylbenzene and diphenylmethane) demonstrated that it is possible to modify the selectivity of the oxidations promoted by [(N4Py)FeIV(O)]2+ in the presence of NHPI. In fact, alkylaromatic substrates are more reactive in the absence of the mediator while alcohols are preferably oxidized in the presence of NHPI.
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Affiliation(s)
- Marika Di Berto Mancini
- Dipartimento
di Chimica and Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Andrea Del Gelsomino
- Dipartimento
di Chimica and Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Stefano Di Stefano
- Dipartimento
di Chimica and Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Federico Frateloreto
- Dipartimento
di Chimica and Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Andrea Lapi
- Dipartimento
di Chimica and Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Osvaldo Lanzalunga
- Dipartimento
di Chimica and Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5, I-00185 Rome, Italy
- CIRCC
Interuniversity Consortium Chemical Reactivity and Catalysis, Via Celso Ulpiani 27, 70126 Bari, Italy
| | - Giorgio Olivo
- Dipartimento
di Chimica and Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Stefano Sajeva
- Dipartimento
di Chimica and Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5, I-00185 Rome, Italy
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29
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Costas M. Site and Enantioselective Aliphatic C-H Oxidation with Bioinspired Chiral Complexes. CHEM REC 2021; 21:4000-4014. [PMID: 34609780 DOI: 10.1002/tcr.202100227] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/17/2021] [Accepted: 09/17/2021] [Indexed: 12/12/2022]
Abstract
Selective oxidation of aliphatic C-H bonds stands as an unsolved problem in organic synthesis, with the potential to offer novel paths for preparing molecules of biological interest. The quest for reagents that can perform this class of reactions finds oxygenases and their mechanisms of action as inspiration motifs. Among the numerous families of synthetic catalysts that have been explored, complexes with linear tetraazadentate ligands combining two aliphatic amines and two aromatic amine heterocycles display a structural versatility proven instrumental in the design of C-H oxidation reactions showing site and enantioselectivities, not accessible by conventional oxidants. This manuscript makes a review of recent advances in the field.
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Affiliation(s)
- Miquel Costas
- Department of Chemistry and Institut de Química Computacional I Catàlisi (IQCC), Universitat de Girona Facultat de Ciències, Campus de Montilivi, 17003, Girona, Spain
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30
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Catalytic Oxidations with Meta-Chloroperoxybenzoic Acid (m-CPBA) and Mono- and Polynuclear Complexes of Nickel: A Mechanistic Outlook. Catalysts 2021. [DOI: 10.3390/catal11101148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Selective catalytic functionalization of organic substrates using peroxides as terminal oxidants remains a challenge in modern chemistry. The high complexity of interactions between metal catalysts and organic peroxide compounds complicates the targeted construction of efficient catalytic systems. Among the members of the peroxide family, m-chloroperoxybenzoic acid (m-CPBA) exhibits quite complex behavior, where numerous reactive species could be formed upon reaction with a metal complex catalyst. Although m-CPBA finds plenty of applications in fine organic synthesis and catalysis, the factors that discriminate its decomposition routes under catalytic conditions are still poorly understood. The present review covers the advances in catalytic C–H oxidation and olefine epoxidation with m-CPBA catalyzed by mono- and polynuclear complexes of nickel, a cheap and abundant first-row transition metal. The reaction mechanisms are critically discussed, with special attention to the O–O bond splitting route. Selectivity parameters using recognized model hydrocarbon substrates are summarized and important factors that could improve further catalytic studies are outlined.
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31
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Zheng A, Zhou Q, Ding B, Li D, Zhang T, Hou Z. Reduced Amino Acid Schiff Base‐Iron(III) Complexes Catalyzing Oxidation of Cyclohexane with Hydrogen Peroxide. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anna Zheng
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Qingqing Zhou
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Bingjie Ding
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Difan Li
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Tong Zhang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Zhenshan Hou
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes East China Normal University School of Chemistry and Molecular Engineering Shanghai 200062 China
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32
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Rezazadeh B, Pourali AR, Banaei AR, Tabari S. Co(II) Schiff base Complexes Encapsulated in the Nanopores of Zeolite Y as Heterogeneous Catalysts for Selective Epoxidation of Alkenes with Molecular Oxygen. RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s107032842106004x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Tomboc GM, Park Y, Lee K, Jin K. Directing transition metal-based oxygen-functionalization catalysis. Chem Sci 2021; 12:8967-8995. [PMID: 34276926 PMCID: PMC8261717 DOI: 10.1039/d1sc01272j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/07/2021] [Indexed: 11/21/2022] Open
Abstract
This review presents the recent progress of oxygen functionalization reactions based on non-electrochemical (conventional organic synthesis) and electrochemical methods. Although both methods have their advantages and limitations, the former approach has been used to synthesize a broader range of organic substances as the latter is limited by several factors, such as poor selectivity and high energy cost. However, because electrochemical methods can replace harmful terminal oxidizers with external voltage, organic electrosynthesis has emerged as greener and more eco-friendly compared to conventional organic synthesis. The progress of electrochemical methods toward oxygen functionalization is presented by an in-depth discussion of different types of electrically driven-chemical organic synthesis, with particular attention to recently developed electrochemical systems and catalyst designs. We hope to direct the attention of readers to the latest breakthroughs of traditional oxygen functionalization reactions and to the potential of electrochemistry for the transformation of organic substrates to useful end products.
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Affiliation(s)
- Gracita M Tomboc
- Department of Chemistry and Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
| | - Yeji Park
- Department of Chemistry and Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
| | - Kyoungsuk Jin
- Department of Chemistry and Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
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Xing Q, Hao Z, Hou J, Li G, Gao Z, Gou J, Li C, Yu B. Manganese-Catalyzed Achmatowicz Rearrangement Using Green Oxidant H 2O 2. J Org Chem 2021; 86:9563-9586. [PMID: 34181426 DOI: 10.1021/acs.joc.1c00858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Oxidation reactions have been extensively studied in the context of the transformations of biomass-derived furans. However, in contrast to the vast literature on utilizing the stoichiometric oxidants, such as m-CPBA and NBS, catalytic methods for the oxidative furan-recyclizations remain scarcely investigated. Given this, we report a means of manganese-catalyzed oxidations of furan with low loading, achieving the Achmatowicz rearrangement in the presence of hydrogen peroxide as an environmentally benign oxidant under mild conditions with wide functional group compatibility.
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Affiliation(s)
- Qingzhao Xing
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Zhe Hao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Jing Hou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Gaoqiang Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Jing Gou
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Normal University, Xi'an 710062, China
| | - Chaoqun Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.,SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd., Qingyuan 511517, China
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35
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Biswas JP, Ansari M, Paik A, Sasmal S, Paul S, Rana S, Rajaraman G, Maiti D. Effect of the Ligand Backbone on the Reactivity and Mechanistic Paradigm of Non‐Heme Iron(IV)‐Oxo during Olefin Epoxidation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jyoti Prasad Biswas
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Mursaleem Ansari
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Aniruddha Paik
- Department of Chemistry University of North Bengal Raja Rammohunpur Darjeeling West Bengal, Pin 734013 India
| | - Sheuli Sasmal
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Sabarni Paul
- Department of Chemistry University of North Bengal Raja Rammohunpur Darjeeling West Bengal, Pin 734013 India
| | - Sujoy Rana
- Department of Chemistry University of North Bengal Raja Rammohunpur Darjeeling West Bengal, Pin 734013 India
| | - Gopalan Rajaraman
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
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36
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Ma Z, Mahmudov KT, Aliyeva VA, Gurbanov AV, Guedes da Silva MFC, Pombeiro AJ. Peroxides in metal complex catalysis. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213859] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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37
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Zima AM, Lyakin OY, Bryliakov KP, Talsi EP. Low-Spin and High-Spin Perferryl Intermediates in Non-Heme Iron Catalyzed Oxidations of Aliphatic C-H Groups. Chemistry 2021; 27:7781-7788. [PMID: 33780054 DOI: 10.1002/chem.202004395] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Indexed: 11/07/2022]
Abstract
The selectivity patterns of iron catalysts of the Fe(PDP) family in aliphatic C-H oxidation with H2 O2 have been studied (PDP=N,N'-bis(pyridine-2-ylmethyl)-2,2'-bipyrrolidine). Cyclohexane, adamantane, 1-bromo-3,7-dimethyloctane, 3,7-dimethyloctyl acetate, (-)-acetoxy-p-menthane, and cis-1,2-dimethylcyclohexane were used as substrates. The studied catalyst systems generate low-spin (S=1/2) oxoiron(V) intermediates or high-spin (S=3/2) oxoiron(V) intermediates, depending on the electron-donating ability of remote substituents at the pyridine rings. The low-spin perferryl intermediates demonstrate lower stability and higher reactivity toward aliphatic C-H groups of cyclohexane than their high-spin congeners, according to the measured self-decay and second-order rate constants k1 and k2 . Unexpectedly, there appears to be no uniform correlation between the spin state of the oxoiron(V) intermediates, and the chemo- and regioselectivity of the corresponding catalyst systems in the oxidation of the considered substrates. This contrasts with the asymmetric epoxidations by the same catalyst systems, in which case the epoxidation enantioselectivity increases when passing from the systems featuring the more reactive low-spin perferryl intermediates to those with their less reactive high-spin congeners.
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Affiliation(s)
- Alexandra M Zima
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russian Federation
| | - Oleg Y Lyakin
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russian Federation
| | - Konstantin P Bryliakov
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russian Federation
| | - Evgenii P Talsi
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk, 630090, Russian Federation
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38
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Biswas JP, Ansari M, Paik A, Sasmal S, Paul S, Rana S, Rajaraman G, Maiti D. Effect of the Ligand Backbone on the Reactivity and Mechanistic Paradigm of Non-Heme Iron(IV)-Oxo during Olefin Epoxidation. Angew Chem Int Ed Engl 2021; 60:14030-14039. [PMID: 33836110 DOI: 10.1002/anie.202102484] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Indexed: 01/08/2023]
Abstract
The oxygen atom transfer (OAT) reactivity of the non-heme [FeIV (2PyN2Q)(O)]2+ (2) containing the sterically bulky quinoline-pyridine pentadentate ligand (2PyN2Q) has been thoroughly studied with different olefins. The ferryl-oxo complex 2 shows excellent OAT reactivity during epoxidations. The steric encumbrance and electronic effect of the ligand influence the mechanistic shuttle between OAT pathway I and isomerization pathway II (during the reaction stereo pure olefins), resulting in a mixture of cis-trans epoxide products. In contrast, the sterically less hindered and electronically different [FeIV (N4Py)(O)]2+ (1) provides only cis-stilbene epoxide. A Hammett study suggests the role of dominant inductive electronic along with minor resonance effect during electron transfer from olefin to 2 in the rate-limiting step. Additionally, a computational study supports the involvement of stepwise pathways during olefin epoxidation. The ferryl bend due to the bulkier ligand incorporation leads to destabilization of both d z 2 and d x 2 - y 2 orbitals, leading to a very small quintet-triplet gap and enhanced reactivity for 2 compared to 1. Thus, the present study unveils the role of steric and electronic effects of the ligand towards mechanistic modification during olefin epoxidation.
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Affiliation(s)
- Jyoti Prasad Biswas
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Mursaleem Ansari
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Aniruddha Paik
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal, Pin, 734013, India
| | - Sheuli Sasmal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Sabarni Paul
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal, Pin, 734013, India
| | - Sujoy Rana
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal, Pin, 734013, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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39
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Ottenbacher RV, Bryliakova AA, Shashkov MV, Talsi EP, Bryliakov KP. To Rebound or...Rebound? Evidence for the “Alternative Rebound” Mechanism in C–H Oxidations by the Systems Nonheme Mn Complex/H 2O 2/Carboxylic Acid. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00811] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Roman V. Ottenbacher
- Novosibirsk State University, Pirogova 1, Novosibirsk 630090, Russian Federation
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
| | - Anna A. Bryliakova
- Novosibirsk State University, Pirogova 1, Novosibirsk 630090, Russian Federation
| | - Mikhail V. Shashkov
- Novosibirsk State University, Pirogova 1, Novosibirsk 630090, Russian Federation
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
| | - Evgenii P. Talsi
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
| | - Konstantin P. Bryliakov
- Novosibirsk State University, Pirogova 1, Novosibirsk 630090, Russian Federation
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
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40
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Jana RD, Das A, Paine TK. Enhancing Chemo- and Stereoselectivity in C-H Bond Oxygenation with H 2O 2 by Nonheme High-Spin Iron Catalysts: The Role of Lewis Acid and Multimetal Centers. Inorg Chem 2021; 60:5969-5979. [PMID: 33784082 DOI: 10.1021/acs.inorgchem.1c00397] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spin states of iron often direct the selectivity in oxidation catalysis by iron complexes using hydrogen peroxide (H2O2) on an oxidant. While low-spin iron(III) hydroperoxides display stereoselective C-H bond hydroxylation, the reactions are nonstereoselective with high-spin iron(II) catalysts. The catalytic studies with a series of high-spin iron(II) complexes of N4 ligands with H2O2 and Sc3+ reported here reveal that the Lewis acid promotes catalytic C-H bond hydroxylation with high chemo- and stereoselectivity. This reactivity pattern is observed with iron(II) complexes containing two cis-labile sites. The enhanced selectivity for C-H bond hydroxylation catalyzed by the high-spin iron(II) complexes in the presence of Sc3+ parallels that of the low-spin iron catalysts. Furthermore, the introduction of multimetal centers enhances the activity and selectivity of the iron catalyst. The study provides insights into the development of peroxide-dependent bioinspired catalysts for the selective oxygenation of C-H bonds without the restriction of using iron complexes of strong-field ligands.
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Affiliation(s)
- Rahul Dev Jana
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Abhishek Das
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Tapan Kanti Paine
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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41
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Schlachta TP, Schlagintweit JF, Anneser MR, Esslinger EMH, Muhr M, Haslinger S, Kühn FE. Modification of bio-inspired tetra-NHC iron complexes with axial nitrile ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120228] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Affiliation(s)
- Guodong Zhao
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
| | | | | | - Rongbiao Tong
- HKUST Shenzhen Research Institute, Shenzhen 518057, China
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43
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Masferrer‐Rius E, Borrell M, Lutz M, Costas M, Klein Gebbink RJM. Aromatic C−H Hydroxylation Reactions with Hydrogen Peroxide Catalyzed by Bulky Manganese Complexes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001590] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Eduard Masferrer‐Rius
- Organic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Margarida Borrell
- Institut de Química Computacional i Catàlisi (IQCC) Departament de Química Universitat de Girona Campus Montilivi E-17071 Girona, Catalonia Spain
| | - Martin Lutz
- Structural Biochemistry Bijvoet Centre for Biomolecular Research Utrecht University Padualaan 8 3584 CH Utrecht The Netherlands
| | - Miquel Costas
- Institut de Química Computacional i Catàlisi (IQCC) Departament de Química Universitat de Girona Campus Montilivi E-17071 Girona, Catalonia Spain
| | - Robertus J. M. Klein Gebbink
- Organic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
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Vicens L, Bietti M, Costas M. General Access to Modified α-Amino Acids by Bioinspired Stereoselective γ-C-H Bond Lactonization. Angew Chem Int Ed Engl 2021; 60:4740-4746. [PMID: 33210804 DOI: 10.1002/anie.202007899] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 11/02/2020] [Indexed: 01/06/2023]
Abstract
α-Amino acids represent a valuable class of natural products employed as building blocks in biological and chemical synthesis. Because of the limited number of natural amino acids available, and of their widespread application in proteomics, diagnosis, drug delivery and catalysis, there is an increasing demand for the development of procedures for the preparation of modified analogues. Herein, we show that the use of bioinspired manganese catalysts and H2 O2 under mild conditions, provides access to modified α-amino acids via γ-C-H bond lactonization. The system can efficiently target 1°, 2° and 3° γ-C-H bonds of α-substituted and achiral α,α-disubstituted α-amino acids with outstanding site-selectivity, good to excellent diastereoselectivity and (where applicable) enantioselectivity. This methodology may be considered alternative to well-established organometallic procedures.
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Affiliation(s)
- Laia Vicens
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Catalonia, Spain
| | - Massimo Bietti
- Dipartimento di Scienze e Tecnologie Chimiche, Università "Tor Vergata", Via della Ricerca Scientifica, 1, 00133, Rome, Italy
| | - Miquel Costas
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Catalonia, Spain
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45
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Zima AM, Lyakin OY, Bushmin DS, Soshnikov IE, Bryliakov KP, Talsi EP. Non-heme perferryl intermediates: Effect of spin state on the epoxidation enantioselectivity. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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46
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Study of the catalytic mechanism of a non-heme Fe catalyst: The role of the spin state of the iron. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Monika, Yadav O, Chauhan H, Ansari A. Electronic structures, bonding, and spin state energetics of biomimetic mononuclear and bridged dinuclear iron complexes: a computational examination. Struct Chem 2021. [DOI: 10.1007/s11224-020-01690-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Masferrer-Rius E, Li F, Lutz M, Klein Gebbink RJM. Exploration of highly electron-rich manganese complexes in enantioselective oxidation catalysis; a focus on enantioselective benzylic oxidation. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01642c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of highly electron-rich manganese complexes for enantioselective benzylic oxidation (and asymmetric epoxidation) is described, to provide chiral benzylic alcohols and epoxides in good yields and enantioselectivites.
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Affiliation(s)
- Eduard Masferrer-Rius
- Organic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Fanshi Li
- Organic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Martin Lutz
- Structural Biochemistry, Bijvoet Centre for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Robertus J. M. Klein Gebbink
- Organic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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Cingolani A, Gualandi I, Scavetta E, Cesari C, Zacchini S, Tonelli D, Zanotti V, Franchi P, Lucarini M, Sicilia E, Mazzone G, Nanni D, Mazzoni R. Cyclopentadienone–NHC iron(0) complexes as low valent electrocatalysts for water oxidation. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02329a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Design and application of earth abundant iron based molecular electrocatalysts for water oxidation, an essential challenge for sustainable energy applications.
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50
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General Access to Modified α‐Amino Acids by Bioinspired Stereoselective γ‐C−H Bond Lactonization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007899] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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