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Gholap SS, Dakhil AA, Chakraborty P, Dighe S, Rahman MM, Dutta I, Hengne A, Huang KW. Efficient and chemoselective imine synthesis catalyzed by a well-defined PN 3-manganese(II) pincer system. Chem Commun (Camb) 2024; 60:2617-2620. [PMID: 38351877 DOI: 10.1039/d3cc05892a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The highly efficient reductive amination of aldehydes with ammonia (NH3) and hydrogen (H2) to form secondary imines is described, as well as the dehydrogenative homocoupling of benzyl amines. Using an air-stable, well-defined PN3-manganese(II) pincer complex as a catalyst precursor, various aldehydes are easily converted directly into secondary imines using NH3 as a nitrogen source under H2 in a one-pot reaction. Importantly, the same catalyst facilitates the dehydrogenative homocoupling of various benzylamines, exclusively forming imine products. These reactions are conducted under very mild conditions, without the addition of any additives, yielding excellent selectivities and high yields of secondary imines in a green manner by minimizing wastes.
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Affiliation(s)
- Sandeep Suryabhan Gholap
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Abdullah Al Dakhil
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh 11432-5701, Saudi Arabia
| | - Priyanka Chakraborty
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Shashikant Dighe
- Agency for Science, Technology and Research, Institute of Materials Research and Engineering and Institute of Sustainability for Chemicals, Energy and Environment, Singapore
| | - Mohammad Misbahur Rahman
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Indranil Dutta
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Amol Hengne
- Agency for Science, Technology and Research, Institute of Materials Research and Engineering and Institute of Sustainability for Chemicals, Energy and Environment, Singapore
| | - Kuo-Wei Huang
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
- Agency for Science, Technology and Research, Institute of Materials Research and Engineering and Institute of Sustainability for Chemicals, Energy and Environment, Singapore
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2
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Nath S, Yadav E, Raghuvanshi A, Singh AK. Ru(II) Complexes with Protic- and Anionic-Naked-NHC Ligands for Cooperative Activation of Small Molecules. Chemistry 2023; 29:e202301971. [PMID: 37377294 DOI: 10.1002/chem.202301971] [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: 06/21/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 06/29/2023]
Abstract
A set of ruthenium(II)-protic-N-heterocyclic carbene complexes, [Ru(NNCH )(PPh3 )2 (X)]Cl (1, X=Cl and 2, X=H) and their deprotonated forms [Ru(NNC)(PPh3 )2 (X)] (1', X=Cl and 2', X=H), in which NNC is a new unsymmetrical pincer ligand, are reported. The four complexes are interconvertible by simple acid-base chemistry. The combined theoretical and spectroscopic investigations indicate charge segregation in anionic-NHC complexes (1' and 2') and can be described from a Lewis pair perspective. The chemical reactivity of deprotonated complex 1' shows cooperative small molecule activation. Complex 1' activates H-H bond of hydrogen, C(sp3 )-I bond of iodomethane, and C(sp)-H bond of phenylacetylene. The activation of CO2 using anionic NHC complex 1' at moderate temperature and ambient pressure and subsequent conversion to formate is also described. All the new compounds have been characterized using ESI-MS, 1 H, 13 C, and 31 P NMR spectroscopy. Molecular structures of 1, 2, and 2' have also been determined with single-crystal X-ray diffraction. The cooperative small molecule activation perspective broadens the scope of potential applications of anionic-NHC complexes in small molecule activation, including the conversion of carbon dioxide to formate, a much sought after reaction in the renewable energy and sustainable development domains.
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Affiliation(s)
- Shambhu Nath
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Ekta Yadav
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Abhinav Raghuvanshi
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Amrendra K Singh
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
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3
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Reichl S, Riedlberger F, Piesch M, Balázs G, Seidl M, Scheer M. Controlled introduction of functional groups at one P atom in [Cp*Fe( η5-P 5)] and release of functionalised phosphines. Chem Sci 2023; 14:7285-7290. [PMID: 37416701 PMCID: PMC10321501 DOI: 10.1039/d3sc01488f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/22/2023] [Indexed: 07/08/2023] Open
Abstract
By salt metathesis reactions of the anionic complexes of the type [Cp*Fe(η4-P5R)]- (R = tBu (1a), Me (1b), -C[triple bond, length as m-dash]CPh (1c); Cp* = 1,2,3,4,5-pentamethylcyclopentadienyl) with organic electrophiles (XRFG; X = halogen; RFG = (CH2)3Br, (CH2)4Br, Me) a variety of organo-substituted polyphosphorus ligand complexes of the type [Cp*Fe(η4-P5RRFG)] (2) are obtained. Thereby, organic substituents with different functional groups (FG), such as halogens or nitriles, are introduced. In [Cp*Fe(η4-P5RR')] (2a: R = tBu, R' = (CH2)3Br), the bromine substituent can be easily substituted, leading to functionalized complexes [{Cp*Fe(η4-P5tBu)}(CH2)3{Cp*Fe(η4-P5Me)}] (4) and [Cp*Fe(η4-P5RR')] (5) (R = tBu, R' = (CH2)3PPh2) or by abstraction of a phosphine to the asymmetric substituted phosphine tBu(Bn)P(CH2)3Bn (6). The reaction of the dianionic species [K(dme)2]2[Cp*Fe(η4-P5)] (I') with bromo-nitriles leads to [Cp*Fe{η4-P5((CH2)3CN)2}] (7), allowing the introduction of two functional groups attached to one phosphorus atom. 7 reacts with ZnBr2 in a self-assembly reaction to form the supramolecular compound [Cp*Fe{η4-P5((CH2)3CN)2}ZnBr2]n (8).
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Affiliation(s)
- Stephan Reichl
- Institute of Inorganic Chemistry, University Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Felix Riedlberger
- Institute of Inorganic Chemistry, University Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Martin Piesch
- Institute of Inorganic Chemistry, University Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Gábor Balázs
- Institute of Inorganic Chemistry, University Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Michael Seidl
- Institute of Inorganic Chemistry, University Regensburg Universitätsstraße 31 93053 Regensburg Germany
| | - Manfred Scheer
- Institute of Inorganic Chemistry, University Regensburg Universitätsstraße 31 93053 Regensburg Germany
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4
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Lee B, Pabst TP, Hierlmeier G, Chirik PJ. Exploring the Effect of Pincer Rigidity on Oxidative Addition Reactions with Cobalt(I) Complexes. Organometallics 2023; 42:708-718. [PMID: 37223209 PMCID: PMC10201995 DOI: 10.1021/acs.organomet.3c00079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Cobalt complexes containing the 2,6-diaminopyridine-substituted PNP pincer (iPrPNMeNP = 2,6-(iPr2PNMe)2(C5H3N)) were synthesized. A combination of solid-state structures and investigation of the cobalt(I)/(II) redox potential established a relatively rigid and electron-donating chelating ligand as compared to iPrPNP (iPrPNP = 2,6-(iPr2PCH2)2(C5H3N)). Based on a buried volume analysis, the two pincer ligands are sterically indistinguishable. Nearly planar, diamagnetic, four-coordinate complexes were observed independent of the field strength (chloride, alkyl, aryl) of the fourth ligand completing the coordination sphere of the metal. Computational studies supported a higher barrier for C-H oxidative addition, largely a result of the increased rigidity of the pincer. The increased oxidative addition barrier resulted in stabilization of (iPrPNMeNP)Co(I) complexes, enabling the characterization of the cobalt boryl and the cobalt hydride dimer by X-ray crystallography. Moreover, (iPrPNMeNP)CoMe served as an efficient precatalyst for alkene hydroboration likely because of the reduced propensity to undergo oxidative addition, demonstrating that reactivity and catalytic performance can be tuned by rigidity of pincer ligands.
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Affiliation(s)
- Boran Lee
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Tyler P Pabst
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Gabriele Hierlmeier
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Paul J Chirik
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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5
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Lin Z, Cai Y, Zhang Y, Zhang H, Xia H. Heterocyclic Suzuki-Miyaura coupling reaction of metalla-aromatics and mechanistic analysis of site selectivity. Chem Sci 2023; 14:1227-1233. [PMID: 36756314 PMCID: PMC9891379 DOI: 10.1039/d2sc05455h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023] Open
Abstract
Pd-catalyzed Suzuki-Miyaura cross-coupling is one of the most straightforward and versatile methods for the construction of functionalized arenes and heteroarenes but site-selective cross-coupling of polyhalogenated (hetero)arenes containing identical halogen substituents remains a challenging problem. Herein, we report a new candidate for heterocyclic Suzuki-Miyaura coupling reaction. This candidate has been applied in organometallic systems by combining classical aryl boronic acid reagents with non-classical heteroarenes. Experimental and computational studies of the mechanism of the reactions were performed, with an emphasis on the identity of the reactive species in the oxidative addition step and the nature of the precise site selectivity. The influence of both the aromaticity of the metalla-aromatic substrates and the steric and electronic properties of the halogenated sites are studied in detail.
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Affiliation(s)
- Zuzhang Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Yapeng Cai
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Yaowei Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Hong Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China .,Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology Shenzhen 518055 China
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6
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Zhu Q, Zhang S, Ma J, Zhu J, Li S, Zeng G. Catalytic Mechanisms of Transfer Hydrogenation of Azobenzene with Ammonia Borane by Pincer Bismuth Complex: Crucial Role of C=N Functional Group on the Pincer Ligand. Chem Asian J 2023; 18:e202201069. [PMID: 36398781 DOI: 10.1002/asia.202201069] [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: 10/19/2022] [Revised: 11/17/2022] [Indexed: 11/19/2022]
Abstract
Transfer hydrogenation of azobenzene with ammonia borane mediated by pincer bismuth complex 1 was systematically investigated through density functional theory calculations. An unusual metal-ligand cooperation mechanism was disclosed, in which the saturation/regeneration of the C=N functional group on the pincer ligand plays an essential role. The reaction is initiated by the hydrogenation of the C=N bond (saturation) with ammonia borane to afford 3CN , which is the rate-determining step with Gibbs energy barrier (ΔG≠ ) and Gibbs reaction energy (ΔG) of 25.6 and -7.3 kcal/mol, respectively. 3CN is then converted to a Bi-H intermediate through a water-bridged pathway, which is followed up with the transfer hydrogenation of azobenzene to produce the final product N,N'-diphenylhydrazine and regenerate the catalyst. Finally, the catalyst could be improved by substituting the phenyl group for the tert-butyl group on the pincer ligand, where the ΔG≠ value (rate-determining step) decreases to 24.0 kcal/mol.
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Affiliation(s)
- Qin Zhu
- Kuang Yaming Honors School, Nanjing University, Nanjing, 210093, P. R. China.,School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing, 210093, P. R. China.,State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fujian Provincial Key Laboratory of Theoretical Computational Chemistry and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Shuoqi Zhang
- Kuang Yaming Honors School, Nanjing University, Nanjing, 210093, P. R. China
| | - Jing Ma
- School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing, 210093, P. R. China
| | - Jun Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fujian Provincial Key Laboratory of Theoretical Computational Chemistry and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Shuhua Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing, 210093, P. R. China
| | - Guixiang Zeng
- Kuang Yaming Honors School, Nanjing University, Nanjing, 210093, P. R. China
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7
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Oswal P, Arora A, Bahuguna A, Purohit S, Joshi K, Sharma P, Kumar A. Palladacycle versus coordination complex of palladium(II) with a bulky organophosphorus (P,N) ligand: application in catalysis of allylation of aldehydes. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100683] [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] Open
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8
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Dodonov VA, Sokolov VG, Baranov EV, Skatova AA, Xu W, Zhao Y, Yang XJ, Fedushkin IL. Reactivity of Transition Metal Gallylene Complexes Toward Substrates with Multiple Carbon–Element Bonds. Inorg Chem 2022; 61:14962-14972. [DOI: 10.1021/acs.inorgchem.2c01296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vladimir A. Dodonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Vladimir G. Sokolov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Evgeny V. Baranov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Alexandra A. Skatova
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Wenhua Xu
- College of Chemistry and Materials Science, Northwest University, Xi’an 710069, China
| | - Yanxia Zhao
- College of Chemistry and Materials Science, Northwest University, Xi’an 710069, China
| | - Xiao-Juan Yang
- College of Chemistry and Materials Science, Northwest University, Xi’an 710069, China
| | - Igor L. Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
- Kozma Minin Nizhny Novgorod State Pedagogical University, Ulyanova 1, Nizhny Novgorod 603005, Russian Federation
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9
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X-ray Structure Analyses and Biological Evaluations of a New Cd(II) Complex with S-Triazine Based Ligand. CRYSTALS 2022. [DOI: 10.3390/cryst12060861] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The crystal structure of a new penta-coordinated Cd(II) complex of the formula [Cd(BPMT)Br2] was presented. This Cd(II) complex was synthesized by mixing Cd(NO3)2·4H2O and 2,4-bis(3,5-dimethyl-1H-pyrazol-1-yl)-6-methoxy-1,3,5-triazine (BPMT) in the presence of KBr. It crystallized in the monoclinic crystal system and P21/n space group. The crystal parameters are a = 11.3680(8) Å, b = 11.1648(8) Å, c = 15.8593(11) Å, and β = 103.563(2)°, while the unit cell volume is 2190.6(12) Å3 and it comprised four molecules. The supramolecular structure of the [Cd(BPMT)Br2] complex is mainly controlled by the intermolecular Br∙∙∙H interactions. Hirshfeld calculations predicted the H∙∙∙H (38.1%), Br∙∙∙H (24.3%), C∙∙∙H (11.1%), and N∙∙∙H (9.5%) interactions are the most dominant. Biological evaluations for the antimicrobial and anticancer properties of the studied complex are presented. The Cd(II) complex has better anticancer and antibacterial activities than the free BPMT ligand. The anticancer activity against lung carcinoma (A-549) is higher for the former (18.64 ± 1.09 µg/mL) compared to the latter (372.79 ± 13.64 µg/mL). Additionally, the best antibacterial activity for the Cd(II) complex was found against B. subtilis.
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Hermosilla P, García-Orduña P, Sanz Miguel PJ, Polo V, Casado MA. Nucleophilic Reactivity at a ═CH Arm of a Lutidine-Based CNC/Rh System: Unusual Alkyne and CO 2 Activation. Inorg Chem 2022; 61:7120-7129. [PMID: 35476902 PMCID: PMC9994788 DOI: 10.1021/acs.inorgchem.2c00617] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Reaction of an amido pincer complex [(CNC)*Rh(CO)] (1) (CNC* is the deprotonated form of CNC) with carbon dioxide gave a neutral complex [(CNC-CO2)Mes*Rh(CO)] (2), which is the result of a C-C bond-forming reaction between the deprotonated arm of the CNC* ligand and CO2. The molecular structure of 2 showed a zwitterionic complex, where the CO2 moiety is covalently connected to the former ═CH arm of the CNC* pincer ligand. The unusual structure of 1 allowed us to explore the reactivity of the CO2 moiety with selected primary amines RNH2 (benzylamine and ammonia), which afforded cationic complexes [(CNC)MesRh(CO)][HRNC(O)O] (R = Bz (3), H (4)). Compounds 3 and 4 are the result of a C-N coupling between the incoming amine and the CO2 fragment covalently connected to the pincer ligand in 2, a process that involves protonation of the "CH-CO2" fragment in 2 from the respective amines. Once revealed the nucleophilic character of the ═CH fragment in 1, we explored its reactivity with alkynes, a study that enlightened a novel reactivity trend in alkyne activation. Reaction of 1 with terminal alkynes RC≡CH (R = Ph, 2-py, 4-C6H4-CF3) yielded neutral complexes [(CNC-CH═CHR)Mes*Rh(CO)] (R = Ph (5), 2-py (6), 4-C6H4-CF3 (7)) in good yields. Deuterium labeling experiments with PhC≡CD confirmed that complex 5 is the product of a formal insertion of the alkyne into the C(sp2)-H bond of the deprotonated arm in 1. This structural proposal was further confirmed by the X-ray molecular structure of phenyl complex 5, which showed the alkyne covalently linked to the pincer ligand. Besides, this novel transformation was analyzed by DFT methods and showed a metal-ligand cooperative mechanism, based on the initial electrophilic attack of the alkyne to the ═CH arm of the CNCMes* ligand (making a new C-C bond) followed by the action of a protic base (HN(SiMe3)2), which is able to perform a proton rearrangement that leads to the final product 5.
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Affiliation(s)
- Pablo Hermosilla
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Pilar García-Orduña
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Pablo J Sanz Miguel
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Víctor Polo
- Departamento de Química Física and Instituto de Biocomputación y Física de los Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Miguel A Casado
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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11
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Valdés H, Germán-Acacio JM, van Koten G, Morales-Morales D. Bimetallic complexes that merge metallocene and pincer-metal building blocks: synthesis, stereochemistry and catalytic reactivity. Dalton Trans 2022; 51:1724-1744. [PMID: 34985477 DOI: 10.1039/d1dt03870b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This perspective is to illustrate the synthesis and applications of bimetallic complexes by merging a metallocene and a (cyclopentadienyl/aryl) pincer metal complex. Four possible ways to merge metallocene and pincer-metal motifs are reported and representative examples are discussed in more detail. These bimetallic complexes have been employed in some important catalytic reactions such as cross-coupling, transfer hydrogenation or synthesis of ammonia. The metallocene fragment may tune the electronic properties of the pincer ligand, due to its redox reversible properties. Also, the presence of two metals in a single complex allows their electronic communication, which proved beneficial for, e.g., the catalytic activity of some species. The presence of the metallocene fragment provides an excellent opportunity to develop chiral catalysts, because the metallocene merger generally renders the two faces of the pincer-metal catalytic site diastereotopic. Besides, an extra chiral functionality may be added to the bimetallic species by using pincer motifs that are planar chiral, e.g. by using the different substituents of pincer ligand "arms" or non-symmetrical arene groupings. Post-functionalization of pre-formed pincer-metal complexes, via η6-coordination with an areneophile such as [CpRu]+ and [Cp*Ru]+ presents a striking strategy to obtain diastereomeric metallocene-pincer type derivatives, that actually involve half-sandwich metallocenes. This approach offers the possibility to create diastereomerically pure derivatives by using the chiral TRISPHAT anion. The authors hope that this report of the synthetic, physico-chemical properties and remarkable catalytic activities of metallocene-based pincer-metal complexes will inspire other researchers to continue exploring this realm.
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Affiliation(s)
- Hugo Valdés
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus de Montilivi, Girona E-17003, Catalonia, Spain
| | - Juan M Germán-Acacio
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica-UNAM, Instituto Nacional de Ciencias Médicas y Nutrición SZ, C. P.14000, Ciudad de México, Mexico
| | - Gerard van Koten
- Organic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Faculty of Science, Utrecht University, 3584CG Utrecht, The Netherlands
| | - David Morales-Morales
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México. C. P. 04510, Mexico.
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12
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Cui FH, Hua Y, Lin YM, Fei J, Gao LH, Zhao X, Xia H. Selective Difunctionalization of Unactivated Aliphatic Alkenes Enabled by a Metal–Metallaaromatic Catalytic System. J Am Chem Soc 2022; 144:2301-2310. [DOI: 10.1021/jacs.1c12586] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fei-Hu Cui
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Yuhui Hua
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yu-Mei Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Jiawei Fei
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Le-Han Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Xiaodan Zhao
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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13
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Spielvogel KD, Stumme NC, Fetrow TV, Wang L, Luna JA, Keith JM, Shaw SK, Daly SR. Quantifying Variations in Metal–Ligand Cooperative Binding Strength with Cyclic Voltammetry and Redox-Active Ligands. Inorg Chem 2022; 61:2391-2401. [DOI: 10.1021/acs.inorgchem.1c03014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kyle D. Spielvogel
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Nathan C. Stumme
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Taylor V. Fetrow
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Li Wang
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Javier A. Luna
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Jason M. Keith
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Scott K. Shaw
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
| | - Scott R. Daly
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, United States
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14
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Construction of a (NNN)Ru-Incorporated Porous Organic Polymer with High Catalytic Activity for β-Alkylation of Secondary Alcohols with Primary Alcohols. Polymers (Basel) 2022; 14:polym14020231. [PMID: 35054638 PMCID: PMC8780954 DOI: 10.3390/polym14020231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 12/12/2022] Open
Abstract
Solid supports functionalized with molecular metal catalysts combine many of the advantages of heterogeneous and homogeneous catalysis. A (NNN)Ru-incorporated porous organic polymer (POP-bp/bbpRuCl3) exhibited high catalytic efficiency and broad functional group tolerance in the C–C cross-coupling of secondary and primary alcohols to give β-alkylated secondary alcohols. This catalyst demonstrated excellent durability during successive recycling without leaching of Ru which is ascribed to the strong binding of the pincer ligands to the metal ions.
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15
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16
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Hermosilla P, García-Orduña P, Lahoz FJ, Polo V, Casado MA. Rh Complexes with Pincer Carbene CNC Lutidine-Based Ligands: Reactivity Studies toward H 2 Addition. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00453] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Pablo Hermosilla
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Pilar García-Orduña
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Fernando J. Lahoz
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Víctor Polo
- Departamento de Química Física and Instituto de Biocomputación y Física de los Sistemas Complejos (BIFI), Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Miguel A. Casado
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
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17
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Mechanistic insight into the isomerization of allyl alcohol catalyzed by the Co(II)-PNP catalyst: Crucial role of spectator ligand. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Norouziyanlakvan S, Rao GK, Ovens J, Gabidullin B, Richeson D. Electrocatalytic H 2 Generation from Water Relying on Cooperative Ligand Electron Transfer in "PN 3 P" Pincer-Supported Ni II Complexes. Chemistry 2021; 27:13518-13522. [PMID: 34415632 DOI: 10.1002/chem.202102031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Indexed: 11/07/2022]
Abstract
Water is the most sustainable source for H2 production, and the efficient electrocatalytic production of H2 from mixed water/acetonitrile solutions by using two new air-stable nickel(II) pincer complexes, [Ni(κ3 -2,6-{Ph2 PNR}2 (NC5 H3 )Br2 ] (R=H I, Me II) is reported. Hydrogen generation from H2 O/CH3 CN solutions is initiated at -2 V against Fc+/0 , and bulk electrocatalysis studies showed that the catalyst functions with an excellent Faradaic efficiency and a turnover frequency of 160 s-1 . A DFT computational investigation of the reduction behavior of I and II revealed a correlation of H2 formation with charge donation from electrons originating in a reduced ligand-localized orbital. As a result, these catalysts are proposed to proceed by a novel mechanism involving electron/proton transfer between a Ni0I species bonded to an anionic PN3 P ligand ("L- /Ni0I ") and a NiI -hydride ("Ni-H"). Furthermore, these catalysts are able to reduce phenol and acetic acid, more active proton sources, at lower potentials that correlate with the substrate pKa .
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Affiliation(s)
- Somayeh Norouziyanlakvan
- Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1 N 6 N5
| | - Gyandshwar Kumar Rao
- Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1 N 6 N5
| | - Jeffrey Ovens
- Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1 N 6 N5
| | - Bulat Gabidullin
- Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1 N 6 N5
| | - Darrin Richeson
- Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1 N 6 N5
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19
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Dong Q, Ma Z, Hao Z, Han Z, Lin J, Lu G. Preparation of trinuclear ruthenium clusters based on piconol ligands and their application in Oppenauer‐type oxidation of secondary alcohols. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qing Dong
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science Hebei Normal University Shijiazhuang China
| | - Zongwen Ma
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science Hebei Normal University Shijiazhuang China
| | - Zhiqiang Hao
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science Hebei Normal University Shijiazhuang China
| | - Zhangang Han
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science Hebei Normal University Shijiazhuang China
| | - Jin Lin
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science Hebei Normal University Shijiazhuang China
| | - Guo‐Liang Lu
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences The University of Auckland Auckland New Zealand
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20
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Zhou C, Hu J, Chakraborty P, Huang K. Synthesis and characterization of second‐generation phosphorus‐nitrogen PN
3
P‐rhodium (I) pincer complexes
via
ligand post‐modification. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chunhui Zhou
- KAUST Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Jinsong Hu
- KAUST Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Priyanka Chakraborty
- KAUST Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Kuo‐Wei Huang
- KAUST Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
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21
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Kaur M, U Din Reshi N, Patra K, Bhattacherya A, Kunnikuruvan S, Bera JK. A Proton-Responsive Pyridyl(benzamide)-Functionalized NHC Ligand on Ir Complex for Alkylation of Ketones and Secondary Alcohols. Chemistry 2021; 27:10737-10748. [PMID: 33998720 DOI: 10.1002/chem.202101360] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Indexed: 12/22/2022]
Abstract
A Cp*Ir(III) complex (1) of a newly designed ligand L1 featuring a proton-responsive pyridyl(benzamide) appended on N-heterocyclic carbene (NHC) has been synthesized. The molecular structure of 1 reveals a dearomatized form of the ligand. The protonation of 1 with HBF4 in tetrahydrofuran gives the corresponding aromatized complex [Cp*Ir(L1 H)Cl]BF4 (2). Both compounds are characterized spectroscopically and by X-ray crystallography. The protonation of 1 with acid is examined by 1 H NMR and UV-vis spectra. The proton-responsive character of 1 is exploited for catalyzing α-alkylation of ketones and β-alkylation of secondary alcohols using primary alcohols as alkylating agents through hydrogen-borrowing methodology. Compound 1 is an effective catalyst for these reactions and exhibits a superior activity in comparison to a structurally similar iridium complex [Cp*Ir(L2 )Cl]PF6 (3) lacking a proton-responsive pendant amide moiety. The catalytic alkylation is characterized by a wide substrate scope, low catalyst and base loadings, and a short reaction time. The catalytic efficacy of 1 is also demonstrated for the syntheses of quinoline and lactone derivatives via acceptorless dehydrogenation, and selective alkylation of two steroids, pregnenolone and testosterone. Detailed mechanistic investigations and DFT calculations substantiate the role of the proton-responsive ligand in the hydrogen-borrowing process.
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Affiliation(s)
- Mandeep Kaur
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Noor U Din Reshi
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Kamaless Patra
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Arindom Bhattacherya
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Sooraj Kunnikuruvan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, 695551, India
| | - Jitendra K Bera
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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22
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23
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Shi X, Xu H, Wu Y, Zhao Y, Meng HM, Li Z, Qu L. Two-Dimension (2D) Cu-MOFs/aptamer Nanoprobe for In Situ ATP Imaging in Living Cells. JOURNAL OF ANALYSIS AND TESTING 2021. [DOI: 10.1007/s41664-021-00172-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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24
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Collett JD, Ransohoff RW, Krause JA, Guan H. An Iron‐Hydrogen Bond Resistant to Protonation and Oxidation. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Joel D. Collett
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221-0172 United States
| | - Rebecca W. Ransohoff
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221-0172 United States
| | - Jeanette A. Krause
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221-0172 United States
| | - Hairong Guan
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati Ohio 45221-0172 United States
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25
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Mohammadnezhad G, Amirian AM, Görls H, Plass W, Sandleben A, Schäfer S, Klein A. Redox Instability of Copper(II) Complexes of a Triazine‐Based PNP Pincer. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
| | - Ali Mohammad Amirian
- Department of Chemistry Isfahan University of Technology Isfahan 84156-83111 Iran
- Chemistry Department Faculty of Science Shiraz University Shiraz 71454 Iran
| | - Helmar Görls
- Lehrstuhl für Anorganische Chemie II Institut für Anorganische und Analytische Chemie Friedrich-Schiller-Universität Jena Humboldtstr. 8 07743 Jena Germany
| | - Winfried Plass
- Lehrstuhl für Anorganische Chemie II Institut für Anorganische und Analytische Chemie Friedrich-Schiller-Universität Jena Humboldtstr. 8 07743 Jena Germany
| | - Aaron Sandleben
- Department für Chemie Institut für Anorganische Chemie Universität zu Köln Greinstraße 6 50939 Köln Germany
| | - Sascha Schäfer
- Department für Chemie Institut für Anorganische Chemie Universität zu Köln Greinstraße 6 50939 Köln Germany
| | - Axel Klein
- Chemistry Department Faculty of Science Shiraz University Shiraz 71454 Iran
- Department für Chemie Institut für Anorganische Chemie Universität zu Köln Greinstraße 6 50939 Köln Germany
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26
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Li H, Lupp D, Das PK, Yang L, Gonçalves TP, Huang MH, El Hajoui M, Liang LC, Huang KW. Redox-Neutral Imination of Alcohol with Azide: A Sustainable Alternative to the Staudinger/Aza-Wittig Reaction. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00379] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huaifeng Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Daniel Lupp
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Pradip K. Das
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Li Yang
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Théo P. Gonçalves
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Mei-Hui Huang
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Marwa El Hajoui
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Lan-Chang Liang
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Department of Medicinal and Applied Chemistry and School of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Kuo-Wei Huang
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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27
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Gonçalves TP, Dutta I, Huang KW. Aromaticity in catalysis: metal ligand cooperation via ligand dearomatization and rearomatization. Chem Commun (Camb) 2021; 57:3070-3082. [PMID: 33656025 DOI: 10.1039/d1cc00528f] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Unlike the conventional model of transition metal catalysis, ligands in metal-ligand cooperative (or bifunctional) catalysis are involved in the substrate activations. Such processes have offered unique mechanistic understandings and led to new concepts for the catalyst design. In particular, unprecedented activities were discovered when the ligand could undergo dearomatization-rearomatization reactions during the catalytic cycle. Aromatization can provide an extra driving force to thermodynamics; consequently, it brings a new perspective to ligand platform design for catalysis. While numerous applications were demonstrated, the influences of changing ligand aromatic properties were often overlooked. In this article, representative ligand systems will be highlighted and a comparison between the Milstein and the Huang pincer systems will be discussed to provide theoretical and conceptual insights.
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Affiliation(s)
- Théo P Gonçalves
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
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28
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Das PK, Bhunia S, Chakraborty P, Chatterjee S, Rana A, Peramaiah K, Alsabban MM, Dutta I, Dey A, Huang KW. Electrocatalytic Water Oxidation by a Phosphorus-Nitrogen O═PN 3-Pincer Cobalt Complex. Inorg Chem 2021; 60:614-622. [PMID: 33236627 DOI: 10.1021/acs.inorgchem.0c02376] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Water oxidation is a primary step in natural as well as artificial photosynthesis to convert renewable solar energy into chemical energy/fuels. Electrocatalytic water oxidation to evolve O2, utilizing suitable low-cost catalysts and renewable electricity, is of fundamental importance considering contemporary energy and environmental issues, yet it is kinetically challenging owing to the complex multiproton/electron transfer processes. Herein, we report the first cobalt-based pincer catalyst for catalytic water oxidation at neutral pH with high efficiency under electrochemical conditions. Most importantly, ligand (pseudo)aromaticity is identified to play an important role during electrocatalysis. A significant potential jump (∼300 mV) was achieved toward a lower positive value when the aromatized cobalt complex was transformed into a (pseudo)dearomatized cobalt species. The dearomatized species catalyzes the water oxidation reaction to evolve oxygen at a much lower overpotential (∼340 mV) on the basis of the onset potential (at a current density of 0.5 mA/cm2) of catalysis at pH 10.5, outperforming other Co-based molecular catalysts reported to date. These observations may provide a new strategy for the judicious design of earth-abundant transition-metal-based water oxidation catalysts.
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Affiliation(s)
- Pradip K Das
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Sarmistha Bhunia
- School of Chemical Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Priyanka Chakraborty
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Sudipta Chatterjee
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Atanu Rana
- School of Chemical Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Karthik Peramaiah
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Merfat M Alsabban
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Indranil Dutta
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Abhishek Dey
- School of Chemical Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Kuo-Wei Huang
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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29
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Wang Y, Lin X, Zhang P, Shen M, Xu H, Xu D. Design and Synthesis of Pyridine and 1,3,5-Triazine PNP Pincer Ligands and Their Application in Cobalt Catalyzed Semihydrogenation of Terminal Alkynes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Chang WC, Deufel F, Weyhermüller T, Farès C, Werlé C. Rhodium( i) complexes derived from tris(isopropyl)-azaphosphatrane—controlling the metal–ligand interplay. RSC Adv 2021; 11:37383-37391. [PMID: 35496436 PMCID: PMC9043836 DOI: 10.1039/d1ra07126b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/06/2021] [Indexed: 01/24/2023] Open
Abstract
Proazaphosphatranes are intriguing ligand architectures comprising a bicyclic cage of flexible nature. They can undergo structural deformations due to transannulation while displaying modular electronic and steric properties. Herein, we report the synthesis and coordination chemistry of rhodium(i) complexes bearing a tris(isopropyl)-azaphosphatrane (TiPrAP) ligand. The molecular structure of the primary complex (1) revealed the insertion of the metal center into a P–N bond of the ligand. The addition of a Lewis acid, i.e., lithium chloride, promoted the dynamic behavior of the complex in the solution, which was studied by state-of-the-art NMR spectroscopy. Substituting the cyclooctadiene ligand at the metal center with triphenylphosphine or 2-pyridyldiphenylphosphine unveiled the adaptive nature of the TiPrAP backbone capable of switching its axial nitrogen from interacting with the phosphorus atom to coordinate the rhodium center. This led the entire ligand edifice to change its binding to rhodium from a bidentate to tridentate coordination. Altogether, our study shows that introducing a TiPrAP ligand allows for unique molecular control of the immediate environment of the metal center, opening perspectives in controlled bond activation and catalysis. The synthesis and coordination chemistry of Rh(i) complexes bearing a tris(isopropyl)-azaphosphatrane (TiPrAP) ligand are reported. The adaptive nature of TiPrAP ligands allows for molecular control of the immediate environment of the metal center.![]()
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Affiliation(s)
- Wei-Chieh Chang
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34–36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Fritz Deufel
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Thomas Weyhermüller
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34–36, 45470 Mülheim an der Ruhr, Germany
| | - Christophe Farès
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Christophe Werlé
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34–36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
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31
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Chatterjee B, Chang W, Werlé C. Molecularly Controlled Catalysis – Targeting Synergies Between Local and Non‐local Environments. ChemCatChem 2020. [DOI: 10.1002/cctc.202001431] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Basujit Chatterjee
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Wei‐Chieh Chang
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Christophe Werlé
- Max Planck Institute for Chemical Energy Conversion Stiftstr. 34–36 45470 Mülheim an der Ruhr Germany
- Ruhr University Bochum Universitätsstr. 150 44801 Bochum Germany
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32
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Chatterjee B, Chang WC, Jena S, Werlé C. Implementation of Cooperative Designs in Polarized Transition Metal Systems—Significance for Bond Activation and Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03794] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Basujit Chatterjee
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Wei-Chieh Chang
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Soumyashree Jena
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Christophe Werlé
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
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33
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Transition metal center effect on the mechanism of homogenous hydrogenation and dehydrogenation. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119808] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydrogen release, CO2 capture and conversion, N2 fixation, and biomass valorization for the synthesis of high-value chemicals and fuels. In this work, we show the main advances of the last five years in the use of pincer transition metal complexes in key catalytic processes aiming for a more sustainable chemical and energy production.
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35
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Li M, Tang Y, Gao H, Rao G, Mao Z. Efficient Cu‐catalyzed Synthesis of Benzimidazoles Using Ammonia as Nitrogen Source in Water. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000236] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Minxin Li
- College of Pharmaceutical ScienceYunnan University of Chinese Medicine Kunming 650500 China
| | - Yanling Tang
- College of Pharmaceutical ScienceYunnan University of Chinese Medicine Kunming 650500 China
| | - Hui Gao
- College of Pharmaceutical ScienceYunnan University of Chinese Medicine Kunming 650500 China
| | - Gaoxiong Rao
- College of Pharmaceutical ScienceYunnan University of Chinese Medicine Kunming 650500 China
| | - Zewei Mao
- College of Pharmaceutical ScienceYunnan University of Chinese Medicine Kunming 650500 China
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36
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Recent Advances in Homogeneous Catalysis via Metal–Ligand Cooperation Involving Aromatization and Dearomatization. Catalysts 2020. [DOI: 10.3390/catal10060635] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Recently, an increasing number of metal complex catalysts have been developed to achieve the activation or transformation of substrates based on cooperation between the metal atom and its ligands. In such “cooperative catalysis,” the ligand not only is bound to the metal, where it exerts steric and electronic effects, but also functionally varies its structure during the elementary processes of the catalytic reaction. In this review article, we focus on metal–ligand cooperation involving aromatization and dearomatization of the ligand, thus introducing the newest developments and examples of homogeneous catalytic reactions.
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37
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Zhang X, Wu SB, Leng X, Chung LW, Liu G, Huang Z. N-Bridged Pincer Iridium Complexes for Highly Efficient Alkane Dehydrogenation and the Relevant Linker Effects. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00539] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xin Zhang
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Song-Bai Wu
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuebing Leng
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Lung Wa Chung
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Guixia Liu
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China
| | - Zheng Huang
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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38
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Merz LS, Ballmann J, Gade LH. Phosphines and
N
‐Heterocycles Joining Forces: an Emerging Structural Motif in PNP‐Pincer Chemistry. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000206] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lukas S. Merz
- Anorganisch‐Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Joachim Ballmann
- Anorganisch‐Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Lutz H. Gade
- Anorganisch‐Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
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39
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Guan C, Pan Y, Zhang T, Ajitha MJ, Huang K. An Update on Formic Acid Dehydrogenation by Homogeneous Catalysis. Chem Asian J 2020; 15:937-946. [DOI: 10.1002/asia.201901676] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/21/2020] [Indexed: 01/03/2023]
Affiliation(s)
- Chao Guan
- KAUST Catalysis Center and Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Yupeng Pan
- KAUST Catalysis Center and Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
- Shenzhen Grubbs InstituteSouthern University of Science and Technology (SUSTech) Shenzhen 518055 P. R. China
| | - Tonghuan Zhang
- KAUST Catalysis Center and Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
- Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical OncogenomicsPeking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Manjaly J. Ajitha
- KAUST Catalysis Center and Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Kuo‐Wei Huang
- KAUST Catalysis Center and Division of Physical Sciences and EngineeringKing Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
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40
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Huang S, Hong X, Sun Y, Cui H, Zhou Q, Lin Y, Hou X. Ru(II)‐
PBT
NN
X
N
complex bearing functional 2‐(pyridin‐2‐yl)benzo[
d
]thiazole ligand catalyzed
α
‐alkylation of nitriles with alcohols. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shuang Huang
- Department of ChemistryFudan University Jiangwan campus 2005 Songhu Rd Shanghai 200438 China
| | - Xi Hong
- Department of ChemistryFudan University Jiangwan campus 2005 Songhu Rd Shanghai 200438 China
| | - Yong Sun
- Key laboratory of toxicologyNingde Normal University Ningde 352000 China
| | - He‐Zhen Cui
- Department of ChemistryFudan University Jiangwan campus 2005 Songhu Rd Shanghai 200438 China
| | - Quan Zhou
- Department of ChemistryFudan University Jiangwan campus 2005 Songhu Rd Shanghai 200438 China
| | - Yue‐Jian Lin
- Department of ChemistryFudan University Jiangwan campus 2005 Songhu Rd Shanghai 200438 China
| | - Xiu‐Feng Hou
- Department of ChemistryFudan University Jiangwan campus 2005 Songhu Rd Shanghai 200438 China
- Key laboratory of toxicologyNingde Normal University Ningde 352000 China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi 832003 China
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41
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Xie ZL, Chai W, Kerns SA, Henkelman GA, Rose MJ. Bioinspired CNP Iron(II) Pincers Relevant to [Fe]-Hydrogenase (Hmd): Effect of Dicarbonyl versus Monocarbonyl Motifs in H 2 Activation and Transfer Hydrogenation. Inorg Chem 2020; 59:2548-2561. [DOI: 10.1021/acs.inorgchem.9b03476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhu-Lin Xie
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Wenrui Chai
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Spencer A. Kerns
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Graeme A. Henkelman
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Michael J. Rose
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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42
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Novel nickel(II), palladium(II), and platinum(II) complexes having a pyrrolyl-iminophosphine (PNN) pincer: Synthesis, crystal structures, and cytotoxic activity. J Inorg Biochem 2020; 205:111015. [PMID: 32032825 DOI: 10.1016/j.jinorgbio.2020.111015] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 12/29/2022]
Abstract
A pyrrolyl-iminophosphine (PNNH) which would act as a potential terdentate ligand has been prepared by Schiff base reaction. Complexes [M(PNN)X] (M = Ni; X = Cl (1), Pd; X = Cl (2), Br (3), I (4), M = Pt; X = Cl (5)) were prepared. The title complexes were characterized by various spectroscopic (IR, 1H, 13C, and 31P NMR) and elemental analyses. The molecular structures of 1, 2, and 5 have been established by single-crystal X-ray crystallography, demonstrating a distorted square planar geometry comprising two 5-membered metallacyclic rings. Complexes 1 and 2 were found to crystallize in the orthorhombic while complex 5 crystallizes in the monoclinic. Cytotoxicities of the complexes along with PNNH were evaluated against A549 (lung), SK-OV-3 (ovarian), SM-MEL-2 (skin), and HCT15 (colon) human cancer cell lines by sulforhodamine B assay. Notably, the palladium(II) complex (2) shows the highest activity. Apoptosis activity along with the caspase inhibitor Z-VAD (Z-Val-Ala-Asp-fluoromethyl ketone) assay of 2 and 5 against A549 and HCT15 cancer cell lines were investigated to learn a mechanistic pathway for the observed cytotoxicity, practically eliminating an apoptotic cell-death route. Complexes 2 and 5 were studied to DNA cleavage assay and molecular docking simulation. The DNA (pcDNA3.0) cleavage experiment evaluates complex 5 interacting with DNA, more effectively, in comparison to complex 2. Molecular docking simulation of 2 and 5 toward DNA and GRP78 (glucose-regulated protein 78) was performed to predict binding sites of ligand-receptors and a plausible mechanistic aspect of metallodrug-action.
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43
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Zhang J, Guo B, Young DJ, Li HX. Acceptorless dehydrogenative coupling with Ru-based catalysts for the synthesis of N-heteroaromatic compounds. Dalton Trans 2020; 49:15527-15547. [DOI: 10.1039/d0dt03282d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A summary of recently developed ruthenium catalysts for the synthesis of N-heteroaromatic compounds via acceptorless dehydrogenative coupling (ADC) and the related auto-transfer-hydrogenative (ATH) reaction.
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Affiliation(s)
- Jing Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Bin Guo
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - David James Young
- College of Engineering
- Information Technology and Environment
- Charles Darwin University
- Darwin NT 0909
- Australia
| | - Hong-Xi Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
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44
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Cooperative Reactivity by Pincer-Type Complexes Possessing Secondary Coordination Sphere. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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45
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Recent advances in the chemistry of group 9—Pincer organometallics. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2020. [DOI: 10.1016/bs.adomc.2019.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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46
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Jia W, Wang Z, Zhi X. Half‐sandwich ruthenium complexes with
S
chiff base ligands bearing a hydroxyl group: Preparation, characterization and catalytic activities. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wei‐Guo Jia
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular‐Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241002 China
| | - Zhi‐Bao Wang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular‐Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241002 China
| | - Xue‐Ting Zhi
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular‐Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials ScienceAnhui Normal University Wuhu 241002 China
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47
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Kumar A, Milstein D. Recent Advances in the Applications of Metal-Ligand Cooperation via Dearomatization and Aromatization of Pincer Complexes. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_67] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Zhou C, Munkerup K, Wang Y, Das PK, Chakraborty P, Hu J, Yao C, Huang MH, Huang KW. Ligand-centered reactivity of a pseudo-dearomatized phosphorus-nitrogen PN 3P* rhodium complex towards molecular oxygen at room temperature. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01605h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The pseudo-dearomatized ligand of PN3P*Rh-CO reacts with O2 to form an α, β-unsaturated carbonyl moiety at room temperature, showcasing an unprecedented ligand-centered reactivity with the oxidation state of Rh(I) remaining untouched.
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Affiliation(s)
- Chunhui Zhou
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
| | - Kristin Munkerup
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
| | - Yuan Wang
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
| | - Pradip K. Das
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
| | - Priyanka Chakraborty
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
| | - Jinsong Hu
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
| | - Changguang Yao
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
| | - Mei-Hui Huang
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
| | - Kuo-Wei Huang
- KAUST Catalysis Center & Division of Physical Science and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23900-6900
- Saudi Arabia
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49
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Lupp D, Huang KW. The Importance of Metal–Ligand Cooperativity in the Phosphorus–Nitrogen PN3P Platform: A Computational Study on Mn-Catalyzed Pyrrole Synthesis. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Daniel Lupp
- KAUST Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Kuo-Wei Huang
- KAUST Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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50
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Importance of thorough conformational analysis in modelling transition metal-mediated reactions: Case studies on pincer complexes containing phosphine groups. JOURNAL OF SAUDI CHEMICAL SOCIETY 2019. [DOI: 10.1016/j.jscs.2019.07.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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