1
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Höhn V, Feuerstein W, Rehak FR, Kehry M, Lebedkin S, Kappes MM, Klopper W, Breher F. Non-Palindromic C∧C∧P Platinum and Palladium Pincer Complexes Showing Intense Phosphorescence via Direct Spin-Forbidden S 0 → T 1 Excitation. Inorg Chem 2023; 62:15627-15640. [PMID: 37682719 DOI: 10.1021/acs.inorgchem.3c02339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
The synthesis of C∧C∧P pre-ligands based on a dicyclohexylphosphine-substituted biphenyl framework is reported. The pre-ligands form the respective non-palindromic pincer complexes of PtII and PdII via double oxidative addition and subsequent comproportionation or C-H activation. The complexes of PtII as well as PdII emit similar green phosphorescence efficiently in the solid state, the former also in solution albeit with less intensity. The most fascinating photophysical feature, however, is a direct singlet-triplet (S0 → T1) excitation of this phosphorescence in the spectral window between the emission and the major singlet-singlet UV absorption. The S0 → T1 excitation spectra show a rich vibronic pattern, which is especially pronounced for the solid samples at cryogenic temperatures. The molar extinction of the lowest-energy singlet-triplet absorption band of the homologous Pt and Pd complexes as well as that of the Pt complex with a different (NHC) ancillary ligand were determined in tetrahydrofuran solutions. Quantum efficiencies of triplet formation (by intersystem crossing) via the "standard" excitation pathway S0 → Sn → T1 were determined for the Pt complexes and found to be different in dependence of the ancillary ligand.
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Affiliation(s)
- Verena Höhn
- Karlsruhe Institute of Technology (KIT), Institute of Inorganic Chemistry, Engesserstraße 15, 76131 Karlsruhe, Germany
| | - Wolfram Feuerstein
- Karlsruhe Institute of Technology (KIT), Institute of Inorganic Chemistry, Engesserstraße 15, 76131 Karlsruhe, Germany
| | - Florian R Rehak
- Karlsruhe Institute of Technology (KIT), Institute of Physical Chemistry, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Max Kehry
- Karlsruhe Institute of Technology (KIT), Institute of Physical Chemistry, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Sergei Lebedkin
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Manfred M Kappes
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Wim Klopper
- Karlsruhe Institute of Technology (KIT), Institute of Physical Chemistry, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Frank Breher
- Karlsruhe Institute of Technology (KIT), Institute of Inorganic Chemistry, Engesserstraße 15, 76131 Karlsruhe, Germany
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2
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Kasera A, Biswas JP, Ali Alshehri A, Ahmed Al-Thabaiti S, Mokhtar M, Maiti D. Transition metal pincer complexes: A series of potential catalysts in C H activation reactions. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Aleksanyan DV, Churusova SG, Dubasova EV, Ananyev IV, Artyushin OI, Peregudov AS, Klemenkova ZS, Denisov GL, Kozlov VA. Experimental and computational insights into the direct cyclopalladation of different unsymmetrical, yet closely related pincer ligands with thione sulfur donors. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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4
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Anandaraj P, Ramesh R, Malecki JG. Direct Synthesis of Benzimidazoles by Pd(II) N^N^S-Pincer Type Complexes via Acceptorless Dehydrogenative Coupling of Alcohols with Diamines. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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5
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Polydentate P, N-based ligands for palladium-catalyzed cross-coupling reactions. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Fırıncı E, Fırıncı R, Sevinçek R, Aygün M, Günay ME. Unsymmetrical ONO-type pincer complexes of palladium(II) containing amino acid barbiturate derivatives: Synthesis, characterization, and catalytic applications in Suzuki–Miyaura cross-coupling reaction. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Enhanced Catalytic Activity of a Cd(II) Complex Containing an Unsymmetrical Primary Amide Functionalized Ligand for the Solvent-Free Cyanosilylation Reaction. Catal Letters 2022. [DOI: 10.1007/s10562-022-04116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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8
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Synthesis of unsymmetrical pincer CNN palladium complex of 8-dimethylamino-3-ferrocenylmethyl-3-azabicyclo[3.2.1]octane and its catalytic activity in the Suzuki reaction. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Li N, Yang X, Zhu Y, Wang F, Gong J, Song M. Pincer iridium(III)-catalyzed enantioselective C(sp3)-H functionalization via carbenoid C H insertion of 3-diazooxindoles with 1,4-cyclohexadiene. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Wang YD, Liu JK, Yang XJ, Gong JF, Song MP. Chiral (Pyridine)-(Imidazoline) NCN′ Pincer Palladium(II) Complexes: Convenient Synthesis via C–H Activation and Characterization. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yi-Dong Wang
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Jin-Kui Liu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Xue-Jie Yang
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Jun-Fang Gong
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Mao-Ping Song
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
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11
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Prakasham AP, Vigalok A, Vedernikov AN. Synthesis and Bond Activation Chemistry of Palladium(II) Pincer Complexes with a Weakly Coordinating Side Arm. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00710] [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)
- A. P. Prakasham
- School of Chemistry, The Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Arkadi Vigalok
- School of Chemistry, The Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Andrei N. Vedernikov
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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12
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Rajmane A, Jadhav S, Kumbhar A. N, O-polydentate ligands for palladium-catalyzed cross-coupling reactions (Part III). J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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13
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Huang JJ, Zhang XQ, Yang JJ, Gong JF, Song MP. Chiral (phosphine)-(imidazoline) PCN pincer palladium(II) complexes: synthesis and application in asymmetric hydrophosphination of 2-alkenoylpyridines with diphenylphosphine. Dalton Trans 2022; 51:8350-8367. [DOI: 10.1039/d2dt01078j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of new chiral PCN pincer Pd(II) complexes 3a−l with aryl-based (phosphine)-(imidazoline) ligands were conveniently synthesized from readily available starting materials with the key step being phosphination/C−H palladation reaction....
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14
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Gafurov ZN, Zueva EM, Bekmukhamedov GE, Kagilev AA, Kantyukov AO, Mikhailov IK, Khayarov KR, Petrova MM, Dovzhenko AP, Rossin A, Giambastiani G, Yakhvarov DG. Benzothiazole- vs. pyrazole-based unsymmetrical (PCN) pincer complexes of nickel(II) as homogeneous catalysts in ethylene oligomerization. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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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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16
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Jagtap RA, Ankade SB, Gonnade RG, Punji B. Achiral and chiral NNN-pincer nickel complexes with oxazolinyl backbones: application in transfer hydrogenation of ketones. NEW J CHEM 2021. [DOI: 10.1039/d1nj01698a] [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
NNN-based achiral and chiral (oxazolinyl)amido-pincer nickel complexes are developed and employed for the catalytic transfer hydrogenation of ketones.
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Affiliation(s)
- Rahul A. Jagtap
- Organometallic Synthesis and Catalysis Lab
- Chemical Engineering Division
- CSIR–National Chemical Laboratory (CSIR–NCL)
- Dr Homi Bhabha Road
- Pune – 411 008
| | - Shidheshwar B. Ankade
- Organometallic Synthesis and Catalysis Lab
- Chemical Engineering Division
- CSIR–National Chemical Laboratory (CSIR–NCL)
- Dr Homi Bhabha Road
- Pune – 411 008
| | - Rajesh G. Gonnade
- Centre for Material Characterization
- CSIR–National Chemical Laboratory
- Pune – 411 008
- India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab
- Chemical Engineering Division
- CSIR–National Chemical Laboratory (CSIR–NCL)
- Dr Homi Bhabha Road
- Pune – 411 008
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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: 20] [Impact Index Per Article: 6.7] [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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Facile synthesis of NC(sp3)O pincer palladium complexes and their use as efficient catalysts for Suzuki-Miyaura reaction of aryl bromides in aqueous medium. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2020.121645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Mousa AH, Chakrabarti K, Isapour G, Bendix J, Wendt OF. Enhancing the Stability of Aromatic PCN Pincer Nickel Complexes by Incorporation of Pyridine as the Nitrogen Side Arm. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Abdelrazek H. Mousa
- Centre for Analysis and Synthesis Department of Chemistry Lund University P. O. Box 124 221 00 Lund Sweden
| | - Kaushik Chakrabarti
- Centre for Analysis and Synthesis Department of Chemistry Lund University P. O. Box 124 221 00 Lund Sweden
| | - Ghodsieh Isapour
- Centre for Analysis and Synthesis Department of Chemistry Lund University P. O. Box 124 221 00 Lund Sweden
| | - Jesper Bendix
- Department of Chemistry University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | - Ola F. Wendt
- Centre for Analysis and Synthesis Department of Chemistry Lund University P. O. Box 124 221 00 Lund Sweden
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20
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Yan J, Wang Y, Hou S, Shi L, Zhu X, Hao X, Song M. NCC Pincer Ni (II) Complexes Catalyzed Hydrophosphination of Nitroalkenes with Diphenylphosphine. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5954] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jing Yan
- College of Chemistry Zhengzhou University No. 100 of Science Road Zhengzhou Henan 450001 P. R. China
| | - Yan‐Bing Wang
- College of Chemistry Zhengzhou University No. 100 of Science Road Zhengzhou Henan 450001 P. R. China
| | - Senyao Hou
- College of Chemistry Zhengzhou University No. 100 of Science Road Zhengzhou Henan 450001 P. R. China
| | - Linlin Shi
- College of Chemistry Zhengzhou University No. 100 of Science Road Zhengzhou Henan 450001 P. R. China
| | - Xinju Zhu
- College of Chemistry Zhengzhou University No. 100 of Science Road Zhengzhou Henan 450001 P. R. China
| | - Xin‐Qi Hao
- College of Chemistry Zhengzhou University No. 100 of Science Road Zhengzhou Henan 450001 P. R. China
| | - Mao‐Ping Song
- College of Chemistry Zhengzhou University No. 100 of Science Road Zhengzhou Henan 450001 P. R. China
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21
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Jerome P, Haribabu J, Bhuvanesh NSP, Karvembu R. Pd(II)‐NNN Pincer Complexes for Catalyzing Transfer Hydrogenation of Ketones. ChemistrySelect 2020. [DOI: 10.1002/slct.202003634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peter Jerome
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015 India
| | - Jebiti Haribabu
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015 India
| | | | - Ramasamy Karvembu
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015 India
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22
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Kirkina VA, Silantyev GA, De-Botton S, Filippov OA, Titova EM, Pavlov AA, Belkova NV, Epstein LM, Gelman D, Shubina ES. Stereoisomerism as an Origin of Different Reactivities of Ir(III) PC(sp 3)P Pincer Catalysts. Inorg Chem 2020; 59:11962-11975. [PMID: 32806008 DOI: 10.1021/acs.inorgchem.0c00797] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two stereoisomers of pentacoordinate iridium(III) hydridochloride with triptycene-based PC(sp3)P pincer ligand (1,8-bis(diisopropylphosphino)triptycene), 1 and 2, differ by the orientation of hydride ligand relative to the bridgehead ring of triptycene. According to DFT/B3PW91/def2-TZVP calculations performed, an equatorial Cl ligand can relatively easily change its position in 1, whereas that is not the case in 2. Both complexes 1 and 2 readily bind the sixth ligand to protect the empty coordination site. Variable temperature spectroscopic (NMR, IR, and UV-visible) studies show the existence of two isomers of hexacoordinate complexes 1·MeCN, 2·MeCN, and 2·Py with acetonitrile or pyridine coordinated trans to hydride or trans to metalated C(sp3), whereas only the equatorial isomer is found for 1·Py. These complexes are stabilized by various intramolecular noncovalent C-H···Cl interactions that are affected by the rotation of isopropyls or pyridine. The substitution of MeCN by pyridine is slow yielding axial Py complexes as kinetic products and the equatorial Py complexes as thermodynamic products with faster reactions of 1·L. Ultimately, that explains the higher activity of 1 in the catalytic alkenes' isomerization observed for allylbenzene, 1-octene, and pent-4-enenitrile, which proceeds as an insertion/elimination sequence rather than through the allylic mechanism.
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Affiliation(s)
- Vladislava A Kirkina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia
| | - Gleb A Silantyev
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia
| | - Sophie De-Botton
- Institute of Chemistry, The Hebrew University, Edmond Safra Campus, Givat Ram, 91904 Jerusalem, Israel
| | - Oleg A Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia
| | - Ekaterina M Titova
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia
| | - Alexander A Pavlov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia
| | - Natalia V Belkova
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia
| | - Lina M Epstein
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia
| | - Dmitri Gelman
- Institute of Chemistry, The Hebrew University, Edmond Safra Campus, Givat Ram, 91904 Jerusalem, Israel
| | - Elena S Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia
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23
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Xu C, Lou XH. Crystal structure of (η 6-1-methyl-4-isopropylbenzene)-[5-bromo-2-(2-pyridyl)phenyl-κ 2
C, N]-chloro-ruthenium(II), C 21H 21BrClNRu. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C21H21BrClNRu, triclinic, P1̄ (no. 2), a = 8.2185(4) Å, b = 10.1626(5) Å, c = 11.9356(6) Å, α = 100.399(4)°, β = 90.005(4)°, γ = 93.434(4)°, V = 978.68(9) Å3, Z = 2, R
gt(F) = 0.0353, wR
ref(F
2) = 0.0676, T = 291(2) K.
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Affiliation(s)
- Chen Xu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology , Zhenjiang, Jiangsu 212003, China
| | - Xin-Hua Lou
- College of Food and Pharmacy, Luoyang Normal University , Luoyang 471022, China
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Li N, Zhu WJ, Huang JJ, Hao XQ, Gong JF, Song MP. Chiral NCN Pincer Iridium(III) Complexes with Bis(imidazolinyl)phenyl Ligands: Synthesis and Application in Enantioselective C–H Functionalization of Indoles with α-Aryl-α-diazoacetates. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00174] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nan Li
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Wen-Jing Zhu
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Juan-Juan Huang
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Xin-Qi Hao
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Jun-Fang Gong
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Mao-Ping Song
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
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Mousa AH, Polukeev AV, Hansson J, Wendt OF. Carboxylation of the Ni–Me Bond in an Electron-Rich Unsymmetrical PCN Pincer Nickel Complex. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00817] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Abdelrazek H. Mousa
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, S-221 00 Lund, Sweden
| | - Alexey V. Polukeev
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, S-221 00 Lund, Sweden
| | - Josefine Hansson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, S-221 00 Lund, Sweden
| | - Ola F. Wendt
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, S-221 00 Lund, Sweden
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26
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Taakili R, Canac Y. NHC Core Pincer Ligands Exhibiting Two Anionic Coordinating Extremities. Molecules 2020; 25:molecules25092231. [PMID: 32397416 PMCID: PMC7248942 DOI: 10.3390/molecules25092231] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/04/2020] [Accepted: 05/06/2020] [Indexed: 01/01/2023] Open
Abstract
The chemistry of NHCcore pincer ligands of LX2 type bearing two pending arms, identical or not, whose coordinating center is anionic in nature, is here reviewed. In this family, the negative charge of the coordinating atoms can be brought either by a carbon atom via a phosphonium ylide (R3P+-CR2-) or by a heteroatom through amide (R2N-), oxide (RO-), or thio(seleno)oxide (RS-, RSe-) donor functionalities. Through selected examples, the synthetic methods, coordination properties, and applications of such tridentate systems are described. Particular emphasis is placed on the role of the donor ends in the chemical behavior of these species.
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27
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Balamurugan G, Ramesh R, Malecki JG. Nickel(II)–NΛNΛO Pincer Type Complex-Catalyzed N-alkylation of Amines with Alcohols via the Hydrogen Autotransfer Reaction. J Org Chem 2020; 85:7125-7135. [DOI: 10.1021/acs.joc.0c00530] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gunasekaran Balamurugan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | - Jan Grzegorz Malecki
- Department of Crystallography, Institute of Chemistry, University of Silesia, 40-006 Katowice, Poland
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Maji A, Singh O, Singh S, Mohanty A, Maji PK, Ghosh K. Palladium‐Based Catalysts Supported by Unsymmetrical XYC
–1
Type Pincer Ligands: C5 Arylation of Imidazoles and Synthesis of Octinoxate Utilizing the Mizoroki–Heck Reaction. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000211] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ankur Maji
- Department of Chemistry Indian Institute of Technology Roorkee 247667 Roorkee Uttarakhand India
| | - Ovender Singh
- Department of Chemistry Indian Institute of Technology Roorkee 247667 Roorkee Uttarakhand India
| | - Sain Singh
- Department of Chemistry Indian Institute of Technology Roorkee 247667 Roorkee Uttarakhand India
| | - Aurobinda Mohanty
- Department of Chemistry Indian Institute of Technology Roorkee 247667 Roorkee Uttarakhand India
| | - Pradip K. Maji
- Department of Polymer and Process Engineering Indian Institute of Technology Roorkee Saharanpur Campus 247001 Saharanpur UP India
| | - Kaushik Ghosh
- Department of Chemistry Indian Institute of Technology Roorkee 247667 Roorkee Uttarakhand India
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30
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Unsymmetrical pyrazole-based PCN pincer NiII halides: Reactivity and catalytic activity in ethylene oligomerization. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121163] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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31
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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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32
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Xiang Y, Ge Q, Wu S, Zheng X, Yang Z. Synthesis and application in asymmetric catalysis of P-stereogenic pincer–metal complexes. RSC Adv 2020; 10:9563-9578. [PMID: 35497199 PMCID: PMC9050166 DOI: 10.1039/d0ra00377h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 02/21/2020] [Indexed: 12/13/2022] Open
Abstract
P-stereogenic pincer: synthesis and application in asymmetric catalysis.
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Affiliation(s)
- Yijun Xiang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research
- University of South China
- Hengyang
- PR China
| | - Qianyi Ge
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research
- University of South China
- Hengyang
- PR China
| | - Shulei Wu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research
- University of South China
- Hengyang
- PR China
| | - Xing Zheng
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research
- University of South China
- Hengyang
- PR China
| | - Zehua Yang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research
- University of South China
- Hengyang
- PR China
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33
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Xu C, Lou XH. Crystal structure of chlorido-(4-chloro-6-( p-tolyl)pyrimidine-κ 2
C, N)-(triphenylphosphane-κ P)palladium(II), C 29H 23Cl 2N 2PPd. Z KRIST-NEW CRYST ST 2019. [DOI: 10.1515/ncrs-2019-0526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C29H23Cl2N2PPd, monoclinic, P21/c (no. 14), a = 9.4028(16) Å, b = 30.928(5) Å, c = 9.3071(16) Å, β = 103.222(2)°, V = 2634.8(8) Å3, Z = 4, R
gt(F) = 0.0423, wR
ref(F
2) = 0.1047, T = 296(2) K.
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Affiliation(s)
- Chen Xu
- College of Food and Pharmacy, Luoyang Normal University , Luoyang 471022 , China
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology , Zhenjiang, Jiangsu 212003 , China
| | - Xin-Hua Lou
- College of Food and Pharmacy, Luoyang Normal University , Luoyang 471022 , China
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34
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Ruhs NP, Khusnutdinova JR, Rath NP, Mirica LM. Mononuclear Organometallic Pd(II), Pd(III), and Pd(IV) Complexes Stabilized by a Pyridinophane Ligand with a C-Donor Group. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00505] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicholas P. Ruhs
- Department of Chemistry, Washington University in St. Louis, One Brookings Drive, St. Louis, Missouri 63130-4899, United States
| | - Julia R. Khusnutdinova
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
| | - Nigam P. Rath
- Department of Chemistry and Biochemistry, One University Boulevard, University of Missouri-St. Louis, St. Louis, Missouri 63121-4400, United States
| | - Liviu M. Mirica
- Department of Chemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
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35
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Liu JK, Gong JF, Song MP. Chiral palladium pincer complexes for asymmetric catalytic reactions. Org Biomol Chem 2019; 17:6069-6098. [PMID: 31090773 DOI: 10.1039/c9ob00401g] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Palladium pincer complexes, containing a monoanionic terdentate ligand composed of an anionic aryl carbon atom and two mutually compatible donor sites, have aroused considerable interest since their first reports in the late 1970s. The high stability of the Pd pincer complexes and particularly their high modularity make these species ideal candidates for catalysis. Furthermore, the nature of the meridional coordination of the pincer ligands, and along with this their ability to enforce a stereo-specific environment around the Pd center, provide a good opportunity for developing chiral Pd pincer catalysts. Thus, a broad variety of chiral Pd pincer complexes have been prepared by the introduction of various stereochemical centers in the pincer skeletons. These chiral Pd pincer complexes have been successfully applied to many asymmetric catalytic reactions such as hydrophosphination reactions, allylation of aldehydes and imines, Michael and aldol reactions, Suzuki-Miyaura reactions as well as reactions of nitrile compounds with imines. This review focuses on the synthetic methods and the applications of chiral Pd pincer complexes in asymmetric catalysis.
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Affiliation(s)
- Jin-Kui Liu
- College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
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36
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Cross-Coupling Reaction of Allylic Ethers with Aryl Grignard Reagents Catalyzed by a Nickel Pincer Complex. Molecules 2019; 24:molecules24122296. [PMID: 31234296 PMCID: PMC6631569 DOI: 10.3390/molecules24122296] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 01/12/2023] Open
Abstract
A cross-coupling reaction of allylic aryl ethers with arylmagnesium reagents was investigated using β-aminoketonato- and β-diketiminato-based pincer-type nickel(II) complexes as catalysts. An β-aminoketonato nickel(II) complex bearing a diphenylphosphino group as a third donor effectively catalyzed the reaction to afford the target cross-coupled products, allylbenzene derivatives, in high yield. The regioselective reaction of a variety of substituted cinnamyl ethers proceeded to give the corresponding linear products. In contrast, α- and γ-alkyl substituted allylic ethers afforded a mixture of the linear and branched products. These results indicated that the coupling reaction proceeded via a π-allyl nickel intermediate.
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37
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Bulygina LA, Khrushcheva NS, Lyssenko KA, Peregudov AS. 5,6-Membered CNN palladium pincer complexes of 3-benzyl-8-dimethylamino -3-azabicyclo[3.2.1]octane and 3-benzyl-9-dimethylamino-3-azabicyclo[3.3.1]nonane. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.02.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Aleksanyan DV, Churusova SG, Klemenkova ZS, Nelyubina YV, Peregudov AS, Kozlov VA. Effect of a (hetero)aromatic spacer on the direction of cyclopalladation in ditopic pincer ligands with thione sulfur donors. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.02.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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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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40
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Das S, Subramaniyan V, Mani G. Nickel(II) and Palladium(II) Complexes Bearing an Unsymmetrical Pyrrole-Based PNN Pincer and Their Norbornene Polymerization Behaviors versus the Symmetrical NNN and PNP Pincers. Inorg Chem 2019; 58:3444-3456. [PMID: 30767515 DOI: 10.1021/acs.inorgchem.8b03562] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Unsymmetrical pincers have been shown to be better than the corresponding symmetrical pincers in several catalysis reactions. A new unsymmetrical PNN propincer, 2-(3,5-dimethylpyrazolylmethyl)-5-(diphenylphosphinomethyl)pyrrole (1), was synthesized from pyrrole through Mannich bases in a good yield. In addition, the new byproduct 2-(3,5-dimethylpyrazolylmethyl)-5-(dimethylaminomethyl)- N-(hydroxymethyl)pyrrole was also isolated. The reaction of 1 with [PdCl2(PhCN)2] and Et3N in toluene yielded [PdCl{C4H2N-2-(CH2Me2pz)-5-(CH2PPh2)-κ3 P,N,N}] (2). The analogous reaction between 1 and [NiCl2(DME)] or NiX2 (X = Br, I) in the presence of NEt3 in acetonitrile afforded [NiX{C4H2N-2-(CH2Me2pz)-5-(CH2PPh2)-κ3 P,N,N}] (3; X = Cl, Br, I). All complexes were structurally characterized. The norbornene polymerization behaviors of the unsymmetrical pincer complexes 2 and 3 in the presence of MMAO or EtAlCl2 were compared with those of the symmetrical pincer complexes chloro[2,5-bis(3,5-dimethylpyrazolylmethyl)pyrrolido]palladium(II) (NNN), chloro[2,5-bis(diphenylphosphinomethyl)pyrrolido]palladium(II), and chloro[2,5-bis(diphenylphosphinomethyl)pyrrolido]nickel(II) (PNP) at different temperatures. The PNN and NNN complexes exhibited far greater activity on the order of 107 g of PNB/mol/h, with quantitative yields in some cases, in comparison to the PNP pincer palladium and nickel complexes. This trend was also supported by the iPr group substituted PNP nickel and palladium pincer complexes. These polymerization behaviors are explained using steric crowding around the metal atom with the support of NMR studies and suggested that the activity increases as the Npyrazole donor increases. Polymers were characterized by 1H NMR, IR, TGA, and powder XRD methods.
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Affiliation(s)
- Sanghamitra Das
- Department of Chemistry , Indian Institute of Technology Kharagpur , Kharagpur , West Bengal , India 721 302
| | - Vasudevan Subramaniyan
- Department of Chemistry , Indian Institute of Technology Kharagpur , Kharagpur , West Bengal , India 721 302
| | - Ganesan Mani
- Department of Chemistry , Indian Institute of Technology Kharagpur , Kharagpur , West Bengal , India 721 302
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41
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Kumbhar A. Functionalized nitrogen ligands (C N) for palladium catalyzed cross-coupling reactions (part II). J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.09.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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42
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Camacho-Espinoza M, Reyes-Deloso A, Toscano RA, Penieres-Carrillo JG, López-Cortés JG, Ortega-Alfaro MC, Ortega-Jiménez F. Thiazole-based non-symmetric NNC–palladium pincer complexes as catalytic precursors for the Suzuki–Miyaura C–C coupling. NEW J CHEM 2019. [DOI: 10.1039/c9nj02977j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
New non-symmetric pincer palladacycles, containing [N,N,C] tridentate ligands are synthesized and their catalytic activities in the Suzuki–Miyaura cross coupling reaction are tested using water under aerobic conditions and IR irradiation.
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Affiliation(s)
- Martín Camacho-Espinoza
- Departamento de Ciencias Químicas
- Facultad de Estudios Superiores Cuautitlán-UNAM
- Estado de México
- Mexico
| | - Alberto Reyes-Deloso
- Departamento de Ciencias Químicas
- Facultad de Estudios Superiores Cuautitlán-UNAM
- Estado de México
- Mexico
| | - R. Alfredo Toscano
- Instituto de Química UNAM
- Circuito Exterior
- Ciudad Universitaria
- Cuidad de México
- Mexico
| | | | - José G. López-Cortés
- Instituto de Química UNAM
- Circuito Exterior
- Ciudad Universitaria
- Cuidad de México
- Mexico
| | | | - Fernando Ortega-Jiménez
- Departamento de Ciencias Químicas
- Facultad de Estudios Superiores Cuautitlán-UNAM
- Estado de México
- Mexico
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43
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Kurisu N, Asano E, Hatayama Y, Kurihara Y, Hashimoto T, Funatsu K, Ueda K, Yamaguchi Y. A β-Diketiminato-Based Pincer-Type Nickel(II) Complex: Synthesis and Catalytic Performance in the Cross-Coupling of Aryl Fluorides with Aryl Grignard Reagents. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801179] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nobutaka Kurisu
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Erika Asano
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Yuki Hatayama
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Youji Kurihara
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Toru Hashimoto
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Kei Funatsu
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Kazuyoshi Ueda
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Yoshitaka Yamaguchi
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
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44
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Ren X, Wesolek M, Braunstein P. Nickel(II) Complexes with Tritopic Nimine
CNHC
Namine
Pincer Ligands. Chemistry 2018; 24:14794-14801. [DOI: 10.1002/chem.201802969] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Xiaoyu Ren
- Université de Strasbourg; CNRS, CHIMIE UMR 7177; Laboratoire de Chimie de Coordination; 4 rue Blaise Pascal 67081 Strasbourg Cedex France
| | - Marcel Wesolek
- Université de Strasbourg; CNRS, CHIMIE UMR 7177; Laboratoire de Chimie de Coordination; 4 rue Blaise Pascal 67081 Strasbourg Cedex France
| | - Pierre Braunstein
- Université de Strasbourg; CNRS, CHIMIE UMR 7177; Laboratoire de Chimie de Coordination; 4 rue Blaise Pascal 67081 Strasbourg Cedex France
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45
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Yan J, Wang YB, Zhu ZH, Li Y, Zhu X, Hao XQ, Song MP. Synthesis, Characterization, and Catalytic Studies of Unsymmetrical Chiral NCC Pincer Pd(II) and Ni(II) Complexes Bearing (Imidazolinyl)aryl NHC Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00300] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jing Yan
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, People’s Republic of China
| | - Yan-Bing Wang
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, People’s Republic of China
| | - Zhi-Hui Zhu
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, People’s Republic of China
| | - Yigao Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, People’s Republic of China
| | - Xinju Zhu
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, People’s Republic of China
| | - Xin-Qi Hao
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, People’s Republic of China
| | - Mao-Ping Song
- College of Chemistry and Molecular Engineering, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, People’s Republic of China
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46
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Berenguer JR, Lalinde E, Moreno MT. Luminescent cyclometalated-pentafluorophenyl Pt II , Pt IV and heteropolynuclear complexes. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.04.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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47
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Asano E, Hatayama Y, Kurisu N, Ohtani A, Hashimoto T, Kurihara Y, Ueda K, Ishihara S, Nagao H, Yamaguchi Y. Acetylacetonato-based pincer-type nickel(ii) complexes: synthesis and catalysis in cross-couplings of aryl chlorides with aryl Grignard reagents. Dalton Trans 2018; 47:8003-8012. [PMID: 29869657 DOI: 10.1039/c8dt01295d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, three different types of acetylacetonato-based pincer-type nickel(ii) complexes (2) were prepared. Complex 2a possessed the tridentate ONN ligand, which was constructed by the condensation reaction of acetylacetone with N,N-diethylethylenediamine. Complex 2b contained the PPh2 donor group in contrast to the NEt2 group in 2a, i.e., an ONP ligand framework. Complex 2c was composed of the NNN ligand, which was prepared by the reaction of 4-((2,4,6-trimethylphenyl)amino)pent-3-en-2-one with N,N-diethylethylenediamine. In addition to X-ray diffraction analysis, these complexes were characterized spectroscopically. Their catalytic activity for a cross-coupling reaction of aryl halides with aryl Grignard reagents was also evaluated. Among these complexes, 2b acted as an effective catalyst for the cross-coupling reaction using aryl chlorides as electrophiles. The electronic properties of these Ni(ii) complexes were investigated by cyclic voltammetry and density functional theory calculations.
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Affiliation(s)
- Erika Asano
- Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
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48
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Churusova SG, Aleksanyan DV, Vasil'ev AA, Rybalkina EY, Susova OY, Klemenkova ZS, Aysin RR, Nelyubina YV, Kozlov VA. Design of pincer complexes based on (methylsulfanyl)acetic/propionic acid amides with ancillary S- and N-donors as potential catalysts and cytotoxic agents. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4360] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Svetlana G. Churusova
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
| | - Diana V. Aleksanyan
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
| | - Andrei A. Vasil'ev
- Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninskii pr. 47 Moscow 119991 Russia
| | - Ekaterina Yu. Rybalkina
- Blokhin Russian Cancer Research Center; Institute of Carcinogenesis; Kashirskoe sh. 24 Moscow 115478 Russia
| | - Olga Yu. Susova
- Blokhin Russian Cancer Research Center; Institute of Carcinogenesis; Kashirskoe sh. 24 Moscow 115478 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
| | - 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 119991 Russia
| | - Vladimir A. Kozlov
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
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49
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De-Botton S, Cohen S, Gelman D. Iridium PC(sp3)P Pincer Complexes with Hemilabile Pendant Arms: Synthesis, Characterization, and Catalytic Activity. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00105] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sophie De-Botton
- Institute of Chemistry, Edmond J. Safra Campus, The Hebrew University of Jerusalem, Jerusalem, 91904 Israel
| | - Shirel Cohen
- Institute of Chemistry, Edmond J. Safra Campus, The Hebrew University of Jerusalem, Jerusalem, 91904 Israel
| | - Dmitri Gelman
- Institute of Chemistry, Edmond J. Safra Campus, The Hebrew University of Jerusalem, Jerusalem, 91904 Israel
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50
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Cao XN, Wan XM, Yang FL, Li K, Hao XQ, Shao T, Zhu X, Song MP. NNN Pincer Ru(II)-Complex-Catalyzed α-Alkylation of Ketones with Alcohols. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00013] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xiao-Niu Cao
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xiao-Min Wan
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Fa-Liu Yang
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Ke Li
- Shandong Qiaochang Modern Agriculture Co., Ltd, No. 1181 Huanghe 12 Road, Binzhou, Shandong 256600, P. R. China
| | - Xin-Qi Hao
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Tian Shao
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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