1
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Saha S, Krause JA, Guan H. C(sp)-H, S-H, and Sn-H Bond Activation with a Cobalt(I) Pincer Complex. Inorg Chem 2024; 63:13689-13699. [PMID: 38976491 DOI: 10.1021/acs.inorgchem.4c01993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
This study focuses on the stoichiometric reactions of {2,6-(iPr2PO)2C6H3}Co(PMe3)2 with terminal alkynes, thiols, and tin hydrides as part of an effort to develop catalytic, two-electron processes with cobalt. This specific Co(I) pincer complex proves to be effective for cleaving the C(sp)-H, S-H, and Sn-H bonds to give oxidative addition products with the general formula {2,6-(iPr2PO)2C6H3}CoHX(PMe3) (X = alkynyl, thiolate, and stannyl groups) along with the free PMe3. These reactions typically reach completion when the substituents on acetylene, sulfur, and tin are electron-withdrawing groups (e.g., phenyl, pyridyl, and alkenyl groups). In contrast, alkyl-substituted acetylenes, 1-pentanethiol, and tributyltin hydride are partially converted due to the equilibria with the corresponding oxidative addition products. The Co(I) pincer complex is not a hydrothiolation catalyst but capable of catalyzing the hydrostannation of terminal alkynes with Ph3SnH to produce β-(Z)-alkenylstannanes selectively.
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Affiliation(s)
- Sayantani Saha
- 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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2
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Pennamuthiriyan A, Rengan R. Nickel Pincer Complexes Catalyzed Sustainable Synthesis of 3,4-Dihydro-2 H-1,2,4-benzothiadiazine-1,1-dioxides via Acceptorless Dehydrogenative Coupling of Primary Alcohols. J Org Chem 2024; 89:2494-2504. [PMID: 38326039 DOI: 10.1021/acs.joc.3c02508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
We report the atom-economic and sustainable synthesis of biologically important 3,4-dihydro-2H-1,2,4-benzothiadiazine-1,1-dioxide (DHBD) derivatives from readily available aromatic primary alcohols and 2-aminobenzenesulfonamide catalyzed by nickel(II)-N∧N∧S pincer-type complexes. The synthesized nickel complexes have been well-studied by elemental and spectroscopic (FT-IR, NMR, and HRMS) analyses. The solid-state molecular structure of complex 2 has been authenticated by a single-crystal X-ray diffraction study. Furthermore, a series of 3,4-dihydro-2H-1,2,4-benzothiadiazine-1,1-dioxide derivatives have been synthesized (24 examples) utilizing a 3 mol % Ni(II) catalyst through acceptorless dehydrogenative coupling of benzyl alcohols with benzenesulfonamide. Gratifyingly, the catalytic protocol is highly selective with the yield up to 93% and produces eco-friendly water/hydrogen gas as byproducts. The control experiments and plausible mechanistic investigations indicate that the coupling of the in situ generated aldehyde with benzenesulfonamide leads to the desired product. In addition, a large-scale synthesis of one of the thiadiazine derivatives unveils the synthetic usefulness of the current methodology.
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Affiliation(s)
- Anandaraj Pennamuthiriyan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | - Ramesh Rengan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
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3
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Singh V, Singh R, Hazari AS, Adhikari D. Unexplored Facet of Pincer Ligands: Super-Reductant Behavior Applied to Transition-Metal-Free Catalysis. JACS AU 2023; 3:1213-1220. [PMID: 37124293 PMCID: PMC10131200 DOI: 10.1021/jacsau.3c00077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 05/03/2023]
Abstract
Pincer ligands are well-established supporting ancillaries to afford robust coordination to metals across the periodic table. Despite their widespread use in developing homogeneous catalysts, the redox noninnocence of the ligand backbone is less utilized in steering catalytic transformations. This report showcases a trianionic, symmetric NNN-pincer to drive C-C cross-coupling reactions and heterocycle formation via C-H functionalization, without any coordination to transition metals. The starting substrates are aryl chlorides that can tease the limit of a catalyst's ability to promote a reductive cleavage at a much demanding potential of -2.90 V vs SCE. The reducing power of the simple trianionic ligand backbone has been tremendously amplified by shining visible light on it. The catalyst's success relies on its easy access to the one-electron oxidized iminosemiquinonate form that has been thoroughly characterized by X-band electron paramagnetic resonance spectroscopy through spectroelectrochemical experiments. The moderately long-lived excited-state lifetime (10.2 ns) and such a super-reductive ability dependent on the one-electron redox shuttle between the bisamido and iminosemiquinonato forms make this catalysis effective.
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Affiliation(s)
- Vikramjeet Singh
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Mohali, SAS Nagar 140306, India
| | - Rahul Singh
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Mohali, SAS Nagar 140306, India
| | | | - Debashis Adhikari
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Mohali, SAS Nagar 140306, India
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4
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Killian L, Bienenmann RLM, Broere DLJ. Quantification of the Steric Properties of 1,8-Naphthyridine-Based Ligands in Dinuclear Complexes. Organometallics 2023; 42:27-37. [PMID: 36644418 PMCID: PMC9832537 DOI: 10.1021/acs.organomet.2c00458] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Indexed: 12/03/2022]
Abstract
Steric properties of ligands are an important parameter for tuning the reactivity of the corresponding complexes. For various ligands used in mononuclear complexes, methods have been developed to quantify their steric bulk. In this work, we present an expansion of the buried volume and the G-parameter to quantify the steric properties of 1,8-napthyridine-based dinuclear complexes. Using this methodology, we explored the tunability of the steric properties associated with these ligands and complexes.
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Affiliation(s)
| | | | - Daniël L. J. Broere
- Organic Chemistry and Catalysis,
Institute for Sustainable and Circular Chemistry, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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5
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Xue MM, Chang J, Zhang J, Chen X. Platinum thiolate complexes supported by PBP and POCOP pincer ligands as efficient catalysts for the hydrosilylation of carbonyl compounds. Dalton Trans 2022; 51:2304-2312. [PMID: 35041735 DOI: 10.1039/d1dt04179g] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Diphosphino-boryl-based PBP pincer platinum thiolate complexes, [Pt(SR){B(NCH2PtBu2)2-1,2-C6H4}] (R = H, 1a; Ph, 1b), and benzene-based bisphosphinite POCOP pincer platinum thiolate complexes, [Pt(SR)(tBu2PO)2-1,3-C6H3] (R = H, 2a; Ph, 2b), were prepared and fully characterized by multinuclear NMR, X-ray crystallography, HRMS and elemental analyses. The application of these complexes in the catalytic hydrosilylation of aldehydes and ketones was investigated. It was found that these platinum thiolate complexes are efficient catalysts for the hydrosilylation of aldehydes and ketones at 65-75 °C. Comparatively, the PBP complexes are more active than the corresponding POCOP complexes. Both phenylsilane and polymethylhydrosiloxane (PMHS) can be used as silyl reagents. The expected alcohols were obtained in good to excellent yields after the basic hydrolysis of the hydrosilylation products and many functional groups were not affected. With turnover frequencies (TOFs) of up to 67 000 h-1, the present catalytic system represents the most effective platinum catalytic system for the hydrosilylation of carbonyl compounds. The reactions were likely catalysed by the in situ generated platinum hydride species.
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Affiliation(s)
- Man-Man Xue
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Jiarui Chang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Jie Zhang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Xuenian Chen
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China. .,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China
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6
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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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7
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Webster L, Krämer T, Chadwick FM. Synthesis and reactivity of titanium ‘POCOP’ pincer complexes. Dalton Trans 2022; 51:16714-16722. [DOI: 10.1039/d2dt03291k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanium ‘POCOP’ complexes have been made, and their ability to support further reactivity investigated, giving a rare isolable titanium chlorohydride.
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Affiliation(s)
- Leah Webster
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, W12 0BZ, UK
| | - Tobias Krämer
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - F. Mark Chadwick
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, W12 0BZ, UK
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8
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Fang F, Xue MM, Ding M, Zhang J, Li S, Chen X. The Stability of Diphosphino-Boryl PBP Pincer Backbone: PBP to POP Ligand Hydrolysis. Chem Asian J 2021; 16:2489-2494. [PMID: 34254470 DOI: 10.1002/asia.202100690] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/10/2021] [Indexed: 01/25/2023]
Abstract
Since moisture may frequently be present in many solvents, it is important to know the reactivity of a catalyst against water for catalytic reactions. In order to explore the stability and understand the transformation process of diphosphino-boryl-based PBP pincer platform, [PdCl{B(NCH2 Pt Bu2 )2 -o-C6 H4 }] (1) was treated with PdCl2 , HB(NCH2 PPh2 )2 -o-C6 H4 was reacted with [PdCl2 (cod)] (cod=cyclo-octa-1,5-diene) and [Pd2 (dba)3 ] (dba=dibenzylideneacetone), respectively, in the presence of water. Some novel palladium POP complexes, [Pd2 Cl2 (μ-Cl){μ-κ3 -P,O,P-OB(NCH2 Pt Bu2 )2 -o-C6 H4 }] (2 a), [Pd4 (μ-Cl)2 (μ-O)2 {μ-κ3 -P,O,P-OB(NCH2 PPh2 )2 -o-C6 H4 }2 ] (2 b), [Pd2 {μ-κ4 -P,P,P,P-O(B(NCH2 PPh2 )2 -o-C6 H4 )2 }{μ-κ2 -P,P-(NHCH2 PPh2 )2 -o-C6 H4 }] (3), were obtained. It was found that the PBP pincer backbone can easily be converted into a POP backbone in the presence of water. From the crystal structures of the resultant palladium complexes, possible pincer backbone transformation pathways were discussed.
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Affiliation(s)
- Fei Fang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Man-Man Xue
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Man Ding
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Jie Zhang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Shujun Li
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Xuenian Chen
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
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9
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Gafurov ZN, Kantyukov AO, Kagilev AA, Kagileva AA, Sakhapov IF, Mikhailov IK, Yakhvarov DG. Recent Advances in Chemistry of Unsymmetrical Phosphorus-Based Pincer Nickel Complexes: From Design to Catalytic Applications. Molecules 2021; 26:4063. [PMID: 34279402 PMCID: PMC8271868 DOI: 10.3390/molecules26134063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/27/2021] [Accepted: 06/29/2021] [Indexed: 11/25/2022] Open
Abstract
Pincer complexes play an important role in organometallic chemistry; in particular, their use as homogeneous catalysts for organic transformations has increased dramatically in recent years. The high catalytic activity of such bis-cyclometallic complexes is associated with the easy tunability of their properties. Moreover, the phosphorus-based unsymmetrical pincers showed higher catalytic activity than the corresponding symmetrical analogues in several catalytic reactions. However, in modern literature, an increasing interest in the development of catalysts based on non-precious metals is observed. For example, nickel, which is an affordable and sustainable analogue of platinum and palladium, known for its low toxicity, has attracted increasing attention in the catalytic chemistry of transition metals in recent years. Thus, this mini-review is devoted to the recent advances in the chemistry of unsymmetrical phosphorus-based pincer nickel complexes, including the ligand design, the synthesis of nickel complexes and their catalytic applications.
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Affiliation(s)
- Zufar N Gafurov
- FRC Kazan Scientific Center, Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, 420088 Kazan, Russia
| | - Artyom O Kantyukov
- FRC Kazan Scientific Center, Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, 420088 Kazan, Russia
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, 420008 Kazan, Russia
| | - Alexey A Kagilev
- FRC Kazan Scientific Center, Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, 420088 Kazan, Russia
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, 420008 Kazan, Russia
| | - Alina A Kagileva
- FRC Kazan Scientific Center, Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, 420088 Kazan, Russia
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, 420008 Kazan, Russia
| | - Il'yas F Sakhapov
- FRC Kazan Scientific Center, Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, 420088 Kazan, Russia
| | - Ilya K Mikhailov
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, 420008 Kazan, Russia
| | - Dmitry G Yakhvarov
- FRC Kazan Scientific Center, Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, 420088 Kazan, Russia
- Alexander Butlerov Institute of Chemistry, Kazan Federal University, 420008 Kazan, Russia
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10
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Belkova NV, Filippov OA, Osipova ES, Safronov SV, Epstein LM, Shubina ES. Influence of phosphine (pincer) ligands on the transition metal hydrides reactivity. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Cabelof AC, Carta V, Chen C, Pink M, Caulton KG. Pincers with diverse donors and their interconversion: application to Ni(II). Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100064] [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)
- Alyssa C. Cabelof
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN, 47401 USA
| | - Veronica Carta
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN, 47401 USA
| | - Chun‐Hsing Chen
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN, 47401 USA
| | - Maren Pink
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN, 47401 USA
| | - Kenneth G. Caulton
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN, 47401 USA
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12
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Radchenko Y, Mujahed S, Musa S, Gelman D. Synthesis and characterization of chiral enantiopure PC(sp)P pincer ligands and their complexes. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Ramírez-Contreras R, Cosio MN, Park S, Bhuvanesh N, Ozerov OV. Arene Coordination Induces Migration of a Hydride to a Ru-Bound Carbene of a Pincer Ligand. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121747] [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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14
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Luconi L, Tuci G, Gafurov ZN, Mercuri G, Kagilev AA, Pettinari C, Morozov VI, Yakhvarov DG, Rossin A, Giambastiani G. Unsymmetrical nickel (PCN) pincer complexes with a benzothiazole side-arm: Synthesis, characterization and electrochemical properties. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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15
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Application of bis(phosphinite) pincer nickel complexes to the catalytic hydrosilylation of aldehydes. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120088] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Rahimi N, Zargarian D. Cationic tetra- and pentacoordinate complexes of nickel based on POCN- and POCOP-type pincer ligands: synthesis, characterization, and ligand exchange studies. NEW J CHEM 2021. [DOI: 10.1039/d1nj01355f] [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
The closely related pincer ligands POCN and POCOP display different electron donating properties and different degrees of resistance to ligand exchange reactions proceeding via cationic reaction intermediates.
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Affiliation(s)
- Naser Rahimi
- Département de chimie, Université de Montréal, Montréal (Québec), H3C 3J7, Canada
| | - Davit Zargarian
- Département de chimie, Université de Montréal, Montréal (Québec), H3C 3J7, Canada
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17
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Arora V, Narjinari H, Nandi PG, Kumar A. Recent advances in pincer-nickel catalyzed reactions. Dalton Trans 2021; 50:3394-3428. [PMID: 33595564 DOI: 10.1039/d0dt03593a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Organometallic catalysts have played a key role in accomplishing numerous synthetically valuable organic transformations that are either otherwise not possible or inefficient. The use of precious, sparse and toxic 4d and 5d metals are an apparent downside of several such catalytic systems despite their immense success over the last several decades. The use of complexes containing Earth-abundant, inexpensive and less hazardous 3d metals, such as nickel, as catalysts for organic transformations has been an emerging field in recent times. In particular, the versatile nature of the corresponding pincer-metal complexes, which offers great control of their reactivity via countless variations, has garnered great interest among organometallic chemists who are looking for greener and cheaper alternatives. In this context, the current review attempts to provide a glimpse of recent developments in the chemistry of pincer-nickel catalyzed reactions. Notably, there have been examples of pincer-nickel catalyzed reactions involving two electron changes via purely organometallic mechanisms that are strikingly similar to those observed with heavier Pd and Pt analogues. On the other hand, there have been distinct differences where the pincer-nickel complexes catalyze single-electron radical reactions. The applicability of pincer-nickel complexes in catalyzing cross-coupling reactions, oxidation reactions, (de)hydrogenation reactions, dehydrogenative coupling, hydrosilylation, hydroboration, C-H activation and carbon dioxide functionalization has been reviewed here from synthesis and mechanistic points of view. The flurry of global pincer-nickel related activities offer promising avenues in catalyzing synthetically valuable organic transformations.
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Affiliation(s)
- Vinay Arora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Himani Narjinari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Pran Gobinda Nandi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India. and Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
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18
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Valdés H, Rufino‐Felipe E, van Koten G, Morales‐Morales D. Hybrid POCZP Aryl Pincer Metal Complexes and their Catalytic Applications. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hugo Valdés
- Instituto de Química Universidad Nacional Autónoma de México 04510, Ciudad de México Coyoacán Mexico
| | - Ernesto Rufino‐Felipe
- Instituto de Química Universidad Nacional Autónoma de México 04510, Ciudad de México Coyoacán Mexico
| | - Gerard van Koten
- Organic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University 3584CG Utrecht The Netherlands
| | - David Morales‐Morales
- Instituto de Química Universidad Nacional Autónoma de México 04510, Ciudad de México Coyoacán Mexico
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19
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Fang F, Chang J, Kang J, Zhang J, Li S, Chen X. A Structure Comparison of Ni(II) Complexes Supported by PNCNP and POCOP Pincer Ligands. ChemistrySelect 2020. [DOI: 10.1002/slct.202001413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fei Fang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy MaterialsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationCollaborative Innovation Centre of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Jiarui Chang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy MaterialsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationCollaborative Innovation Centre of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Jiaxin Kang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy MaterialsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationCollaborative Innovation Centre of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Jie Zhang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy MaterialsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationCollaborative Innovation Centre of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Shujun Li
- Henan Key Laboratory of Boron Chemistry and Advanced Energy MaterialsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationCollaborative Innovation Centre of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Xuenian Chen
- Henan Key Laboratory of Boron Chemistry and Advanced Energy MaterialsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationCollaborative Innovation Centre of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
- College of Chemistry and Molecular EngineeringZhengzhou University Zhengzhou Henan 450001 China)
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20
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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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21
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Singh A, Gelman D. Cooperative Reactivity in Carbometalated Pincer-Type Complexes Possessing an Appended Functionality. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04882] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ajeet Singh
- Institute of Chemistry, The Hebrew University, Edmund Safra Campus, 91904 Jerusalem, Israel
| | - Dmitri Gelman
- Institute of Chemistry, The Hebrew University, Edmund Safra Campus, 91904 Jerusalem, Israel
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklay St., 6, 117198 Moscow, Russia
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22
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Ding Y, Ma QQ, Kang J, Zhang J, Li S, Chen X. Palladium(ii) complexes supported by PBP and POCOP pincer ligands: a comparison of their structure, properties and catalytic activity. Dalton Trans 2019; 48:17633-17643. [PMID: 31755493 DOI: 10.1039/c9dt03954f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A Pd(ii) chloride complex supported by a Yamashita-Nozaki PBP pincer ligand, [C6H4-1,2-(NCH2PtBu2)2B]PdCl (1a), was synthesized. The structure, properties and catalytic activity of complex 1a were compared with those of the corresponding POCOP pincer complex [C6H3-2,6-(OPtBu2)2]PdCl (2a). It was found that the Pd centre in complex 1a is more electron rich and easier to be oxidized than that in complex 2a; complex 1a is a much better catalyst for Suzuki-Miyaura cross-coupling reactions than complex 2a. Starting from complexes 1a and 2a, two series of Pd(ii) pincer complexes bearing a SH, BH4, N[combining low line]CS, N[combining low line]CSe or N3 covalent ligand, [C6H4-1,2-(NCH2PtBu2)2B]PdY (Y = SH, 1b; BH4; 1c; N[combining low line]CS, 1d; N[combining low line]CSe, 1e; and N3, 1f) and [C6H3-2,6-(OPtBu2)2]PdY (Y = SH, 2b; BH4, 2c; N[combining low line]CS, 2d; N[combining low line]CSe, 2e; and N3, 2f), were synthesized and fully characterized. Single crystal X-ray diffraction analysis indicated that the Pd centre is less tightly chelated in PBP pincer complexes. The strong σ-donor ability of the PBP pincer ligand has little influence on the structure of the covalent ligand possessing both σ-donor and π-acceptor properties. However, the stretching vibrational frequencies of N[combining low line]CS, N[combining low line]CSe and N3 ligands and the coordination mode of the BH4 ligand are significantly different in these two types of palladium pincer complexes.
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Affiliation(s)
- Yazhou Ding
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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23
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Cao B, Ding Y, Fang F, Chang J, Zhang J, Li S, Chen X. The stability of group 10 metal POCOP pincer complexes: decomposition/reconstruction pathways of the pincer backbone. Dalton Trans 2019; 48:13760-13768. [PMID: 31475715 DOI: 10.1039/c9dt02825k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organometallic chemists usually like to use the word robust to describe pincer ligand frameworks in metal pincer complexes. Although most transition metal pincer complexes are thermally stable, the pincer backbone frameworks can still decompose under certain circumstances. In order to explore the stability of the bis(phosphinite) (POCOP) pincer backbone in transition metal pincer complexes, group 10 metal POCOP pincer complexes were exposed to different nucleophilic and electrophilic conditions, respectively. It was found that the POCOP pincer backbone is stable under intermolecular nucleophilic conditions but cannot survive intramolecular nucleophilic attack; the POCOP pincer backbone is also stable under weak electrophilic conditions but the backbone can be completely destroyed by strong Lewis acids such as AlCl3. Possible decomposition/reconstruction pathways of the POCOP pincer ligand framework were proposed.
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Affiliation(s)
- Bula Cao
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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24
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Aleksanyan DV, Churusova SG, Klemenkova ZS, Aysin RR, Rybalkina EY, Nelyubina YV, Artyushin OI, Peregudov AS, Kozlov VA. Extending the Application Scope of Organophosphorus(V) Compounds in Palladium(II) Pincer Chemistry. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00867] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Diana V. Aleksanyan
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia
| | - Svetlana G. Churusova
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia
| | - Zinaida S. Klemenkova
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia
| | - Rinat R. Aysin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia
| | - Ekaterina Yu. Rybalkina
- Institute of Carcinogenesis, Blokhin Russian Cancer Research Center, Kashirskoe shosse 24, Moscow, 115478 Russia
| | - Yulia V. Nelyubina
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117901 Russia
| | - Oleg I. Artyushin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia
| | - Alexander S. Peregudov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia
| | - Vladimir A. Kozlov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991 Russia
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25
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Zhang J, Cao B, Ding Y, Chang J, Li S, Chen X. Syntheses and Structures of Group 10 Metal POCOP Pincer Complexes Bearing A Mercapto-o-
carborane Auxiliary Ligand. ChemistrySelect 2019. [DOI: 10.1002/slct.201803908] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jie Zhang
- School of Chemistry and Chemical Engineering, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University Xinxiang; Henan 453007 China
| | - Bula Cao
- School of Chemistry and Chemical Engineering, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University Xinxiang; Henan 453007 China
| | - Yazhou Ding
- School of Chemistry and Chemical Engineering, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University Xinxiang; Henan 453007 China
| | - Jiarui Chang
- School of Chemistry and Chemical Engineering, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University Xinxiang; Henan 453007 China
| | - Shujun Li
- School of Chemistry and Chemical Engineering, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University Xinxiang; Henan 453007 China
| | - Xuenian Chen
- School of Chemistry and Chemical Engineering, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials; Henan Normal University Xinxiang; Henan 453007 China
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26
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Das K, Kumar A. Alkane dehydrogenation reactions catalyzed by pincer-metal complexes. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2019. [DOI: 10.1016/bs.adomc.2019.02.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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27
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Luconi L, Osipova ES, Giambastiani G, Peruzzini M, Rossin A, Belkova NV, Filippov OA, Titova EM, Pavlov AA, Shubina ES. Amine Boranes Dehydrogenation Mediated by an Unsymmetrical Iridium Pincer Hydride: (PCN) vs (PCP) Improved Catalytic Performance. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00488] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Lapo Luconi
- Istituto di Chimica dei Composti Organometallici − Consiglio Nazionale delle Ricerche (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - Elena S. Osipova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), Vavilova Str. 28, 119991 Moscow, Russia
| | - Giuliano Giambastiani
- Istituto di Chimica dei Composti Organometallici − Consiglio Nazionale delle Ricerche (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
- Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), UMR 7515 CNRS - University of Strasbourg (UdS), 25, rue Becquerel, 67087 Strasbourg Cedex
02, France
- Kazan Federal University, Kremlyovskaya Str. 18, 420008 Kazan, Russia
| | - Maurizio Peruzzini
- Istituto di Chimica dei Composti Organometallici − Consiglio Nazionale delle Ricerche (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - Andrea Rossin
- Istituto di Chimica dei Composti Organometallici − Consiglio Nazionale delle Ricerche (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - Natalia V. Belkova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), Vavilova Str. 28, 119991 Moscow, Russia
| | - Oleg A. Filippov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), Vavilova Str. 28, 119991 Moscow, Russia
| | - Ekaterina M. Titova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), Vavilova Str. 28, 119991 Moscow, Russia
- Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St, 117198 Moscow, Russia
| | - Alexander A. Pavlov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), Vavilova Str. 28, 119991 Moscow, Russia
| | - Elena S. Shubina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), Vavilova Str. 28, 119991 Moscow, Russia
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28
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Li Y, Krause JA, Guan H. Cobalt POCOP Pincer Complexes via Ligand C–H Bond Activation with Co2(CO)8: Catalytic Activity for Hydrosilylation of Aldehydes in an Open vs a Closed System. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00273] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yingze Li
- 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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29
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Hoffbauer MR, Comanescu CC, Dymm BJ, Iluc VM. Influence of the Leaving Group on C–H Activation Pathways in Palladium Pincer Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00237] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Melissa R. Hoffbauer
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Cezar C. Comanescu
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Brittany J. Dymm
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Vlad M. Iluc
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
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30
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Valdés H, García-Eleno MA, Canseco-Gonzalez D, Morales-Morales D. Recent Advances in Catalysis with Transition-Metal Pincer Compounds. ChemCatChem 2018. [DOI: 10.1002/cctc.201702019] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hugo Valdés
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior s/n, Ciudad Universitaria, Coyoacán 04510 Ciudad de México México
| | - Marco A. García-Eleno
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM; Universidad Autónoma del Estado de México; Carretera Toluca-Atlacomulco Km 14.5 Toluca, Estado de México 50200 México
| | - Daniel Canseco-Gonzalez
- CONACYT-Laboratorio Nacional de Investigación y Servicio, Agroalimentario y Forestal; Universidad Autónoma Chapingo; Texcoco de Mora México
| | - David Morales-Morales
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior s/n, Ciudad Universitaria, Coyoacán 04510 Ciudad de México México
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31
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32
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33
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34
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Li Y, Yu X, Wang Y, Fu H, Zheng X, Chen H, Li R. Unsymmetrical Pincer N-Heterocyclic Carbene–Nitrogen–Phosphine Chelated Palladium(II) Complexes: Synthesis, Structure, and Reactivity in Direct Csp2–H Arylation of Benzoxazoles. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00005] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yaqiu Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaojun Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yangdiandian Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Haiyan Fu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xueli Zheng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Hua Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Ruixiang Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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35
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Affiliation(s)
- Travis T. Lekich
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Phoebe G. Askelson
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Ryan K. Burdick
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - D. Michael Heinekey
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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36
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Zhang J, Liu T, Ma QQ, Li S, Chen X. A reaction of [2,6-(tBu2PO)2C6H3]NiSCH2Ph with BH3·THF: borane mediated C–S bond cleavage. Dalton Trans 2018; 47:6018-6024. [DOI: 10.1039/c7dt04883a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
C–S bond cleavage of the thiolato ligand of [2,6-(tBu2PO)2C6H3]NiSCH2Ph mediated by BH3 as a suitable model for the transition metal catalyzed C–S bond activation of mercaptans.
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Affiliation(s)
- Jie Zhang
- School of Chemistry and Chemical Engineering
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials
- Henan Normal University
- Xinxiang
- China
| | - Ting Liu
- School of Chemistry and Chemical Engineering
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials
- Henan Normal University
- Xinxiang
- China
| | - Qiang-Qiang Ma
- School of Chemistry and Chemical Engineering
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials
- Henan Normal University
- Xinxiang
- China
| | - Shujun Li
- School of Chemistry and Chemical Engineering
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials
- Henan Normal University
- Xinxiang
- China
| | - Xuenian Chen
- School of Chemistry and Chemical Engineering
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials
- Henan Normal University
- Xinxiang
- China
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37
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Debnath S, Venegas G, Arulsamy N, Roddick DM. Synthesis and coordination chemistry of new asymmetric donor/acceptor pincer ligands, 1,3-C 6H 4(CH 2P tBu(R f)) 2 (R f = CF 3, C 2F 5). Dalton Trans 2018; 47:12420-12430. [DOI: 10.1039/c8dt02738b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Syntheses of new asymmetric pincer precursors 1,3-C6H4{CH2P(tBu,X)}2 (tBu,XPCPH; X = Cl, SiMe3, OPh) and a new class of hybrid donor/acceptor pincer ligands 1,3-C6H4{CH2P(tBu,Rf)}2 (tBu,RfPCPH; Rf = CF3, C2F5) are reported.
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Affiliation(s)
- Suman Debnath
- Department of Chemistry
- Box 3838
- University of Wyoming
- Laramie
- USA
| | - Gabriel Venegas
- Department of Chemistry
- Box 3838
- University of Wyoming
- Laramie
- USA
| | | | - Dean M. Roddick
- Department of Chemistry
- Box 3838
- University of Wyoming
- Laramie
- USA
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38
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Kumar A, Bhatti TM, Goldman AS. Dehydrogenation of Alkanes and Aliphatic Groups by Pincer-Ligated Metal Complexes. Chem Rev 2017; 117:12357-12384. [DOI: 10.1021/acs.chemrev.7b00247] [Citation(s) in RCA: 205] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Akshai Kumar
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Tariq M. Bhatti
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Alan S. Goldman
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
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39
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Ehrlich N, Kreye M, Baabe D, Schweyen P, Freytag M, Jones PG, Walter MD. Synthesis and Electronic Ground-State Properties of Pyrrolyl-Based Iron Pincer Complexes: Revisited. Inorg Chem 2017; 56:8415-8422. [DOI: 10.1021/acs.inorgchem.7b01078] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nico Ehrlich
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Markus Kreye
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Dirk Baabe
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter Schweyen
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Freytag
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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40
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Kumar A, Hackenberg JD, Zhuo G, Steffens AM, Mironov O, Saxton RJ, Goldman AS. High yields of piperylene in the transfer dehydrogenation of pentane catalyzed by pincer-ligated iridium complexes. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.molcata.2016.10.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Goldberg JM, Cherry SDT, Guard LM, Kaminsky W, Goldberg KI, Heinekey DM. Hydrogen Addition to (pincer)IrI(CO) Complexes: The Importance of Steric and Electronic Factors. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00598] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jonathan M. Goldberg
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Sophia D. T. Cherry
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Louise M. Guard
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Werner Kaminsky
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Karen I. Goldberg
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - D. Michael Heinekey
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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42
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Affiliation(s)
- Nathan A. Eberhardt
- 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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43
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Hou C, Zhang Z, Zhao C, Ke Z. DFT Study of Acceptorless Alcohol Dehydrogenation Mediated by Ruthenium Pincer Complexes: Ligand Tautomerization Governing Metal Ligand Cooperation. Inorg Chem 2016; 55:6539-51. [DOI: 10.1021/acs.inorgchem.6b00723] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Cheng Hou
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry and Chemical Engineering,
School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Zhihan Zhang
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry and Chemical Engineering,
School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Cunyuan Zhao
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry and Chemical Engineering,
School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Zhuofeng Ke
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry and Chemical Engineering,
School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
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44
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Jia YX, Yang XY, Tay WS, Li Y, Pullarkat SA, Xu K, Hirao H, Leung PH. Computational and carbon-13 NMR studies of Pt-C bonds in P-C-P pincer complexes. Dalton Trans 2016; 45:2095-101. [PMID: 26483364 DOI: 10.1039/c5dt02049b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A (13)C{(1)H} NMR based investigation was conducted to examine the electronic properties of C(aryl)-M bonds and their trans influence in P-C(aryl)-P pincer complexes. A series of structurally related platinum pincer complexes were rationally designed and their corresponding (13)C-(195)Pt coupling constants were systematically examined. By methodical substitution of the ligand trans to the organometallic C(aryl)-Pt bond, this study revealed the significant influence of the ligands on the nature of the C(aryl)-M bonds. The single crystal X-ray analysis of the complexes and computational studies further confirmed the observations that the C-M bond exhibits significant π-character.
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Affiliation(s)
- Yu-Xiang Jia
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371.
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45
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Titova EM, Silantyev GA, Filippov OA, Gulyaeva ES, Gutsul EI, Dolgushin FM, Belkova NV. PCP Pincer Iridium Chemistry – Coordination of Pyridines to [(
t
Bu
PCP)IrH(Cl)]. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ekaterina M. Titova
- Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds, Vavilov Str. 28, 119991 Moscow, Russia, http://mhlab.ru
| | - Gleb A. Silantyev
- Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds, Vavilov Str. 28, 119991 Moscow, Russia, http://mhlab.ru
| | - Oleg A. Filippov
- Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds, Vavilov Str. 28, 119991 Moscow, Russia, http://mhlab.ru
| | - Ekaterina S. Gulyaeva
- Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds, Vavilov Str. 28, 119991 Moscow, Russia, http://mhlab.ru
| | - Evgenii I. Gutsul
- Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds, Vavilov Str. 28, 119991 Moscow, Russia, http://mhlab.ru
| | - Fedor M. Dolgushin
- Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds, Vavilov Str. 28, 119991 Moscow, Russia, http://mhlab.ru
| | - Natalia V. Belkova
- Russian Academy of Sciences, A. N. Nesmeyanov Institute of Organoelement Compounds, Vavilov Str. 28, 119991 Moscow, Russia, http://mhlab.ru
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46
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Yang XY, Tay WS, Li Y, Pullarkat SA, Leung PH. Asymmetric 1,4-Conjugate Addition of Diarylphosphines to α,β,γ,δ-Unsaturated Ketones Catalyzed by Transition-Metal Pincer Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00787] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiang-Yuan Yang
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Wee Shan Tay
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Yongxin Li
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Sumod A. Pullarkat
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Pak-Hing Leung
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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47
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Kumar A, Zhou T, Emge TJ, Mironov O, Saxton RJ, Krogh-Jespersen K, Goldman AS. Dehydrogenation of n-Alkanes by Solid-Phase Molecular Pincer-Iridium Catalysts. High Yields of α-Olefin Product. J Am Chem Soc 2015. [PMID: 26200219 DOI: 10.1021/jacs.5b05313] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the transfer-dehydrogenation of gas-phase alkanes catalyzed by solid-phase, molecular, pincer-ligated iridium catalysts, using ethylene or propene as hydrogen acceptor. Iridium complexes of sterically unhindered pincer ligands such as (iPr4)PCP, in the solid phase, are found to give extremely high rates and turnover numbers for n-alkane dehydrogenation, and yields of terminal dehydrogenation product (α-olefin) that are much higher than those previously reported for solution-phase experiments. These results are explained by mechanistic studies and DFT calculations which jointly lead to the conclusion that olefin isomerization, which limits yields of α-olefin from pincer-Ir catalyzed alkane dehydrogenation, proceeds via two mechanistically distinct pathways in the case of ((iPr4)PCP)Ir. The more conventional pathway involves 2,1-insertion of the α-olefin into an Ir-H bond of ((iPr4)PCP)IrH2, followed by 3,2-β-H elimination. The use of ethylene as hydrogen acceptor, or high pressures of propene, precludes this pathway by rapid hydrogenation of these small olefins by the dihydride. The second isomerization pathway proceeds via α-olefin C-H addition to (pincer)Ir to give an allyl intermediate as was previously reported for ((tBu4)PCP)Ir. The improved understanding of the factors controlling rates and selectivity has led to solution-phase systems that afford improved yields of α-olefin, and provides a framework required for the future development of more active and selective catalytic systems.
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Affiliation(s)
- Akshai Kumar
- †Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States.,§Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India
| | - Tian Zhou
- †Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Thomas J Emge
- †Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Oleg Mironov
- ‡Chevron Energy Technology Company, 100 Chevron Way, Richmond, California 94802, United States
| | - Robert J Saxton
- ‡Chevron Energy Technology Company, 100 Chevron Way, Richmond, California 94802, United States
| | - Karsten Krogh-Jespersen
- †Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Alan S Goldman
- †Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
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48
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Chakraborty S, Bhattacharya P, Dai H, Guan H. Nickel and iron pincer complexes as catalysts for the reduction of carbonyl compounds. Acc Chem Res 2015; 48:1995-2003. [PMID: 26098431 DOI: 10.1021/acs.accounts.5b00055] [Citation(s) in RCA: 300] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The reductions of aldehydes, ketones, and esters to alcohols are important processes for the synthesis of chemicals that are vital to our daily life, and the reduction of CO2 to methanol is expected to provide key technology for carbon management and energy storage in our future. Catalysts that affect the reduction of carbonyl compounds often contain ruthenium, osmium, or other precious metals. The high and fluctuating price, and the limited availability of these metals, calls for efforts to develop catalysts based on more abundant and less expensive first-row transition metals, such as nickel and iron. The challenge, however, is to identify ligand systems that can increase the thermal stability of the catalysts, enhance their reactivity, and bypass the one-electron pathways that are commonly observed for first-row transition metal complexes. Although many other strategies exist, this Account describes how we have utilized pincer ligands along with other ancillary ligands to accomplish these goals. The bis(phosphinite)-based pincer ligands (also known as POCOP-pincer ligands) create well-defined nickel hydride complexes as efficient catalysts for the hydrosilylation of aldehydes and ketones and the hydroboration of CO2 to methanol derivatives. The hydride ligands in these complexes are substantially nucleophilic, largely due to the enhancement by the strongly trans-influencing aryl groups. Under the same principle, the pincer-ligated nickel cyanomethyl complexes exhibit remarkably high activity (turnover numbers up to 82,000) for catalytically activating acetonitrile and the addition of H-CH2CN across the C═O bonds of aldehydes without requiring a base additive. Cyclometalation of bis(phosphinite)-based pincer ligands with low-valent iron species "Fe(PR3)4" results in diamagnetic Fe(II) hydride complexes, which are active catalysts for the hydrosilylation of aldehydes and ketones. Mechanistic investigation suggests that the hydride ligand is not delivered to the carbonyl substrates but is important to facilitate ligand dissociation prior to substrate activation. In the presence of CO, the amine-bis(phosphine)-based pincer ligands are also able to stabilize low-spin Fe(II) species. Iron dihydride complexes supported by these ligands are bifunctional as both the FeH and NH moieties participate in the reduction of C═O bonds. These iron pincer complexes are among the first iron-based catalysts for the hydrogenation of esters, including fatty acid methyl esters, which find broad applications in industry. Our studies demonstrate that pincer ligands are promising candidates for promoting the first-row transition metal-catalyzed reduction of carbonyl compounds with high efficiency. Further efforts in this research area are likely to lead to more efficient and practical catalysts.
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Affiliation(s)
- Sumit Chakraborty
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
| | - Papri Bhattacharya
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
| | - Huiguang Dai
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
| | - Hairong Guan
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
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49
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Adhikary A, Krause JA, Guan H. Configurational Stability and Stereochemistry of P-Stereogenic Nickel POCOP-Pincer Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00402] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anubendu Adhikary
- 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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50
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Lapointe S, Vabre B, Zargarian D. POCOP-Type Pincer Complexes of Nickel: Synthesis, Characterization, and Ligand Exchange Reactivities of New Cationic Acetonitrile Adducts. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00272] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sébastien Lapointe
- Département de Chimie, Université de Montréal, Montréal, Québec, Canada H3C 3J7
| | - Boris Vabre
- Département de Chimie, Université de Montréal, Montréal, Québec, Canada H3C 3J7
| | - Davit Zargarian
- Département de Chimie, Université de Montréal, Montréal, Québec, Canada H3C 3J7
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