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Chetcuti MJ, Naghmouchi H, Hamdi A, Karmazin L. Synthesis of Imidazolium Cations Linked to Para-t-Butylcalix[4]arene Frameworks and Their Use as Synthons for Nickel-NHC Complexes Tethered to Calix[4]arenes. Molecules 2023; 28:5697. [PMID: 37570668 PMCID: PMC10420804 DOI: 10.3390/molecules28155697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 08/13/2023] Open
Abstract
A series of cationic p-tert-butylcalix[4]arenes, with side-arms that are functionalized with imidazolium groups, have been synthesized in good yields. The parent tetrahydroxy para-t-butyl-calix[4]arene was dialkylated at the phenolic hydrogen atoms using α,ω-dibromo-alkanes to yield bis(mono-brominated) alkoxy-chains of variable length. The brominated side-arms in these compounds were then further alkylated with substituted imidazoles (N-methylimidazole, N-(2,4,6-trimethyl-phenyl)imidazole, or N-(2,6-di-isopropylphenyl)imidazole) to yield a series of dicationic calixarenes with two imidazolium groups tethered, via different numbers of methylene spacers (n = 2-4), to the calixarene moiety. Related tetracationic compounds, which contain four imidazolium units linked to the calix[4]arene backbone, were also prepared. In all of these compounds, the NMR data show that the calixarenes adopted a cone configuration. All molecules were characterized by NMR spectroscopy and by MS studies. Single crystal X-ray diffraction studies were attempted on many mono-crystals of these cations, but significant disorder problems, partly caused by occluded solvent in the lattice, and lack of crystallinity resulting from partial solvent loss, precluded the good resolution of most X-ray structures. Eventually, good structural data were obtained from an unusually disordered single crystal of 5a, (1,3)-Cone-5,11,17,23-tetra-t-butyl-25,27-di-hydroxy-26,28-di-[2-(N-2,6-diisopropylphenyl-imidazolium)ethoxy]calix[4]arene dibromide and its presumed structure was confirmed. The structure revealed the presence of H-bonded interactions and some evidence of π-stacking. Some of these imidazolium salts were reacted with nickelocene to form the nickel N-heterocyclic carbene (NHC) complexes 7a-7d. A bis-carbene nickel complex 8 was also isolated and its structure was established by single crystal X-ray diffraction studies. The structure was disordered and not of high quality, but the structural data corroborated the spectroscopic data.
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Affiliation(s)
- Michael J. Chetcuti
- Organometallic Chemistry Group, LIMA—UMR CNRS 7042, European School of Chemistry, Polymers and Materials (ECPM), Universities of Strasbourg and of Upper Alsace, 25 Rue Becquerel, 67087 Strasbourg, France
| | - Haithem Naghmouchi
- Organometallic Chemistry Group, LIMA—UMR CNRS 7042, European School of Chemistry, Polymers and Materials (ECPM), Universities of Strasbourg and of Upper Alsace, 25 Rue Becquerel, 67087 Strasbourg, France
| | - Abdelwaheb Hamdi
- Department of Chemistry, College of Sciences and Arts in Ar Rass, Qassim University, Buraydah 52222, Saudi Arabia;
- LR05ES09 Laboratory of Applied Chemistry and Natural Substances Resources and Environment (LACReSNE), Faculty of Sciences of Bizerte, University of Carthage, Bizerte 7021, Tunisia
| | - Lydia Karmazin
- Institut Chevreul FR2638, Pôle Diffraction et Diffusion des Rayons X, Cité Scientifique-Université de Lille, Avenue Paul Langevin, CEDEX, 59652 Villeneuve d’Ascq, France
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Khazipov OV, Pyatachenko AS, Pasyukov DV, Minyaev ME, Chernyshev VM. A pyridine promoted ‘weak base route’ to (NHC)2NiCl2 complexes with bulky N,N'-diaryl carbene ligands. MENDELEEV COMMUNICATIONS 2023. [DOI: 10.1016/j.mencom.2023.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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3
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Shirota H, Koyakkat M, Cao M, Shimizu M, Asakura S, Kawamoto H, Moriyama K. Facile Preparation of Deep Eutectic Solvents Having High Electrical Conductivities. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2022.121176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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4
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Kulikovskaya NS, Denisova EA, Ananikov VP. A novel approach to study catalytic reactions via electrophoretic NMR on the example of Pd/NHC-catalyzed Mizoroki-Heck cross-coupling reaction. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2022; 60:954-962. [PMID: 35727217 DOI: 10.1002/mrc.5295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/17/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Investigation of catalytic reactions using nuclear magnetic resonance (NMR) is a crucial task, which is often challenging to perform due to rather complex transformations at the metal center. In this work, it was shown that electrophoretic NMR can be a suitable method for studying catalytic reactions and for observing the changes in the catalyst nature. As an important example involving palladium catalysts with N-heterocyclic carbine ligands (NHCs), the breakage of the Pd-NHC bond can occur during the catalytic process. Electrophoretic NMR allows the distinction of compounds in the spectra depending on the charge, thus bringing new opportunities to mechanistic studies. Here, we present independent evidence of R-NHC product formation in the Pd-catalyzed Mizoroki-Heck reaction-the key process for catalyst change from the molecular to nano-scale type.
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Affiliation(s)
| | - Ekaterina A Denisova
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Valentine P Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
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Siddhartha, Rangarajan S, Kunchur HS, Balakrishna MS. A greener approach towards the synthesis of N-heterocyclic thiones and selones using the mechanochemical technique. Dalton Trans 2022; 51:15750-15761. [PMID: 36178103 DOI: 10.1039/d2dt02322a] [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
This manuscript describes the synthesis of N-heterocyclic thiones and selones of a variety of imidazolium salts involving an eco-friendly and solventless ball-milling technique. The products have been isolated in almost quantitative yield, involving a minimum quantity of solvents only for the isolation of products by column chromatography, and in some cases for purification purposes. Both mono- and bisimidazolium salts afforded N-heterocyclic thiones and selones. The methodology is found to be superior in terms of reaction time, yield and energy efficiency as compared to conventional solution-state reactions.
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Affiliation(s)
- Siddhartha
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Shalini Rangarajan
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Harish S Kunchur
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Maravanji S Balakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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6
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Chernyshev VM, Khazipov OV, Shevchenko MA, Pasyukov DV, Burykina JV, Minyaev ME, Eremin DB, Ananikov VP. Discovery of the N–NHC Coupling Process under the Conditions of Pd/NHC- and Ni/NHC-Catalyzed Buchwald–Hartwig Amination. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Victor M. Chernyshev
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Oleg V. Khazipov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Maksim A. Shevchenko
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Dmitry V. Pasyukov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Julia V. Burykina
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| | - Mikhail E. Minyaev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| | - Dmitry B. Eremin
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| | - Valentine P. Ananikov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
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7
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A study of the reactivity and transformations of Pd/NHC complexes in the reaction of oxidative C−H acetoxylation. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3526-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Kawakami M, Schulz KHG, Varni A, Tormena CF, Gil RR, Noonan K. Statistical Copolymers of Thiophene-3-Carboxylates and Selenophene-3-Carboxylates; 77Se NMR as a Tool to Examine Copolymer Sequence in Selenophene-Based Conjugated Polymers. Polym Chem 2022. [DOI: 10.1039/d2py00777k] [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
Herein, we demonstrate that homopolymerization and statistical copolymerization of 2-ethylhexyl thiophene-3-carboxylate and 2-ethylhexyl selenophene-3-carboxylate monomers is possible via Suzuki-Miyaura cross-coupling. A commercially available palladium catalyst ([1,3-bis(2,6-di-3-pentylphenyl)imidazol-2-ylidene](3-chloropyridyl)dichloropalladium(II) or PEPPSI-IPent) was employed...
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9
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Flores JC, Silbestri GF, de Jesús E. Water-soluble transition-metal complexes with hydrophilic N-heterocyclic carbene ligands for aqueous-phase applications. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Complexes LNi(Cp)X with alkylamino-substituted N-heterocyclic carbene ligands (L) and their catalytic activity in the Suzuki—Miyaura reaction. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3212-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Glushkov VA, Babentzev DN, Dmitriev MV, Borisova IA, Denisov MS. Quaternary 2-R-5,6-dihydro-1,2,4-triazolo[3,4-a]isoquinolin-2-ium salts and PEPPSI complexes based thereof. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3065-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Quinlivan PJ, Loo A, Shlian DG, Martinez J, Parkin G. N-Heterocyclic Carbene Complexes of Nickel, Palladium, and Iridium Derived from Nitron: Synthesis, Structures, and Catalytic Properties. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00679] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Patrick J. Quinlivan
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Aaron Loo
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Daniel G. Shlian
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Joan Martinez
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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13
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Metal-ligand bond dissociation energies in the Ni, Pd, and Pt complexes with N-heterocyclic carbenes: effect of the oxidation state of the metal (0, +2). Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-3002-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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14
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Chernyshev VM, Denisova EA, Eremin DB, Ananikov VP. The key role of R-NHC coupling (R = C, H, heteroatom) and M-NHC bond cleavage in the evolution of M/NHC complexes and formation of catalytically active species. Chem Sci 2020; 11:6957-6977. [PMID: 33133486 PMCID: PMC7553045 DOI: 10.1039/d0sc02629h] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 06/19/2020] [Indexed: 02/01/2023] Open
Abstract
Complexes of metals with N-heterocyclic carbene ligands (M/NHC) are typically considered the systems of choice in homogeneous catalysis due to their stable metal-ligand framework. However, it becomes obvious that even metal species with a strong M-NHC bond can undergo evolution in catalytic systems, and processes of M-NHC bond cleavage are common for different metals and NHC ligands. This review is focused on the main types of the M-NHC bond cleavage reactions and their impact on activity and stability of M/NHC catalytic systems. For the first time, we consider these processes in terms of NHC-connected and NHC-disconnected active species derived from M/NHC precatalysts and classify them as fundamentally different types of catalysts. Problems of rational catalyst design and sustainability issues are discussed in the context of the two different types of M/NHC catalysis mechanisms.
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Affiliation(s)
- Victor M Chernyshev
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
| | - Ekaterina A Denisova
- N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , 119991 Moscow , Russian Federation
| | - Dmitry B Eremin
- N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , 119991 Moscow , Russian Federation
- The Bridge@USC , University of Southern California , 1002 Childs Way , Los Angeles , California 90089-3502 , USA
| | - Valentine P Ananikov
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
- N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , 119991 Moscow , Russian Federation
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15
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Nickel(ii) N-heterocyclic carbene complexes as efficient catalysts for the Suzuki—Miyaura reaction. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2818-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Jia WG, Gao LL, Wang ZB, Wang JJ, Sheng EH, Han YF. NHC-Palladium(II) Mononuclear and Binuclear Complexes Containing Phenylene-Bridged Bis(thione) Ligands: Synthesis, Characterization, and Catalytic Activities. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00091] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wei-Guo Jia
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou 350002, People’s Republic of China
| | - Li-Li Gao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - Zhi-Bao Wang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - Jing-Jing Wang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - En-Hong Sheng
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - Ying-Feng Han
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou 350002, People’s Republic of China
- Key Laboratory of Synthetic and Natural Functional Molecular Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, People’s Republic of China
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17
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Annunziata A, Amoresano A, Cucciolito ME, Esposito R, Ferraro G, Iacobucci I, Imbimbo P, Lucignano R, Melchiorre M, Monti M, Scognamiglio C, Tuzi A, Monti DM, Merlino A, Ruffo F. Pt(II) versus Pt(IV) in Carbene Glycoconjugate Antitumor Agents: Minimal Structural Variations and Great Performance Changes. Inorg Chem 2020; 59:4002-4014. [PMID: 32129608 PMCID: PMC7997382 DOI: 10.1021/acs.inorgchem.9b03683] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Indexed: 12/20/2022]
Abstract
Octahedral Pt(IV) complexes (2Pt-R) containing a glycoconjugate carbene ligand were prepared and fully characterized. These complexes are structural analogues to the trigonal bipyramidal Pt(II) species (1Pt-R) recently described. Thus, an unprecedented direct comparison between the biological properties of Pt compounds with different oxidation states and almost indistinguishable structural features was performed. The stability profile of the novel Pt(IV) compounds in reference solvents was determined and compared to that of the analogous Pt(II) complexes. The uptake and antiproliferative activities of 2Pt-R and 1Pt-R were evaluated on the same panel of cell lines. DNA and protein binding properties were assessed using human serum albumin, the model protein hen egg white lysozyme, and double stranded DNA model systems by a variety of experimental techniques, including UV-vis absorption spectroscopy, fluorescence, circular dichroism, and electrospray ionization mass spectrometry. Although the compounds present similar structures, their in-solution stability, cellular uptake, and DNA binding properties are diverse. These differences may represent the basis of their different cytotoxicity and biological activity.
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Affiliation(s)
- Alfonso Annunziata
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Angela Amoresano
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Maria Elena Cucciolito
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- CIRCC, via Celso Ulpiani
27, 70126 Bari, Italy
| | - Roberto Esposito
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- CIRCC, via Celso Ulpiani
27, 70126 Bari, Italy
| | - Giarita Ferraro
- Dipartimento di Chimica Ugo Schiff, Università di Firenze, Sesto Fiorentino, Florence 50019, Italy
| | - Ilaria Iacobucci
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Paola Imbimbo
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Rosanna Lucignano
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | | | - Maria Monti
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Chiara Scognamiglio
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Angela Tuzi
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Daria Maria Monti
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Antonello Merlino
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Francesco Ruffo
- Dipartimento di
Scienze Chimiche, Università di Napoli
Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- CIRCC, via Celso Ulpiani
27, 70126 Bari, Italy
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18
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19
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Khazipov OV, Shevchenko MA, Pasyukov DV, Chernenko AY, Astakhov AV, Tafeenko VA, Chernyshev VM, Ananikov VP. Preventing Pd–NHC bond cleavage and switching from nano-scale to molecular catalytic systems: amines and temperature as catalyst activators. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02041a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Heating Pd/NHC complexes with aliphatic amines induces Pd–NHC bond cleavage, while treating the complexes with primary or secondary aliphatic amines in the presence of strong bases promotes the activation of molecular Pd/NHC catalysis.
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Affiliation(s)
- Oleg V. Khazipov
- Platov South-Russian State Polytechnic University (NPI)
- Novocherkassk
- Russia
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
| | - Maxim A. Shevchenko
- Platov South-Russian State Polytechnic University (NPI)
- Novocherkassk
- Russia
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
| | - Dmitry V. Pasyukov
- Platov South-Russian State Polytechnic University (NPI)
- Novocherkassk
- Russia
| | | | - Alexander V. Astakhov
- Platov South-Russian State Polytechnic University (NPI)
- Novocherkassk
- Russia
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
| | | | - Victor M. Chernyshev
- Platov South-Russian State Polytechnic University (NPI)
- Novocherkassk
- Russia
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
| | - Valentine P. Ananikov
- Platov South-Russian State Polytechnic University (NPI)
- Novocherkassk
- Russia
- Lomonosov Moscow State University
- 119991 Moscow
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Mudi PK, Mahato RK, Joshi M, Paul S, Choudhury AR, Biswas B. Synthesis and structural characterization of a linkage isomer to a mononuclear Nickel(II) complex: Experimental and computational depiction of phosphoesterase efficiency. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Highly Efficient N-Heterocyclic Carbene/Ruthenium Catalytic Systems for the Acceptorless Dehydrogenation of Alcohols to Carboxylic Acids: Effects of Ancillary and Additional Ligands. Catalysts 2019. [DOI: 10.3390/catal10010010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The transition-metal-catalyzed alcohol dehydrogenation to carboxylic acids has been identified as an atom-economical and attractive process. Among various catalytic systems, Ru-based systems have been the most accessed and investigated ones. With our growing interest in the discovery of new Ru catalysts comprising N-heterocyclic carbene (NHC) ligands for the dehydrogenative reactions of alcohols, we designed and prepared five NHC/Ru complexes ([Ru]-1–[Ru]-5) bearing different ancillary NHC ligands. Moreover, the effects of ancillary and additional ligands on the alcohol dehydrogenation with KOH were thoroughly explored, followed by the screening of other parameters. Accordingly, a highly active catalytic system, which is composed of [Ru]-5 combined with an additional NHC precursor L5, was discovered, affording a variety of acid products in a highly efficient manner. Gratifyingly, an extremely low Ru loading (125 ppm) and the maximum TOF value until now (4800) were obtained.
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Li D, Ollevier T. Synthesis of Imidazolidinone, Imidazolone, and Benzimidazolone Derivatives through Oxidation Using Copper and Air. Org Lett 2019; 21:3572-3575. [PMID: 31058508 DOI: 10.1021/acs.orglett.9b00973] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new synthetic method of urea derivatives using copper and air was developed. These mild conditions provided moderate to very good yields for 15 examples (53-93%), while low yields were obtained with sterically hindered substrates (3 examples). The reaction was found to go through an in situ generated copper- N-heterocyclic carbene, which was then oxidized into cyclic urea derivatives possessing alkyl, benzyl, aryl, hydroxy, Boc-protected, and tertiary amine groups.
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Affiliation(s)
- Dazhi Li
- Département de chimie , Université Laval , 1045 avenue de la Médecine , Québec , QC , G1V 0A6 , Canada
| | - Thierry Ollevier
- Département de chimie , Université Laval , 1045 avenue de la Médecine , Québec , QC , G1V 0A6 , Canada
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23
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Vogiatzis KD, Polynski MV, Kirkland JK, Townsend J, Hashemi A, Liu C, Pidko EA. Computational Approach to Molecular Catalysis by 3d Transition Metals: Challenges and Opportunities. Chem Rev 2019; 119:2453-2523. [PMID: 30376310 PMCID: PMC6396130 DOI: 10.1021/acs.chemrev.8b00361] [Citation(s) in RCA: 212] [Impact Index Per Article: 42.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 12/28/2022]
Abstract
Computational chemistry provides a versatile toolbox for studying mechanistic details of catalytic reactions and holds promise to deliver practical strategies to enable the rational in silico catalyst design. The versatile reactivity and nontrivial electronic structure effects, common for systems based on 3d transition metals, introduce additional complexity that may represent a particular challenge to the standard computational strategies. In this review, we discuss the challenges and capabilities of modern electronic structure methods for studying the reaction mechanisms promoted by 3d transition metal molecular catalysts. Particular focus will be placed on the ways of addressing the multiconfigurational problem in electronic structure calculations and the role of expert bias in the practical utilization of the available methods. The development of density functionals designed to address transition metals is also discussed. Special emphasis is placed on the methods that account for solvation effects and the multicomponent nature of practical catalytic systems. This is followed by an overview of recent computational studies addressing the mechanistic complexity of catalytic processes by molecular catalysts based on 3d metals. Cases that involve noninnocent ligands, multicomponent reaction systems, metal-ligand and metal-metal cooperativity, as well as modeling complex catalytic systems such as metal-organic frameworks are presented. Conventionally, computational studies on catalytic mechanisms are heavily dependent on the chemical intuition and expert input of the researcher. Recent developments in advanced automated methods for reaction path analysis hold promise for eliminating such human-bias from computational catalysis studies. A brief overview of these approaches is presented in the final section of the review. The paper is closed with general concluding remarks.
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Affiliation(s)
| | | | - Justin K. Kirkland
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Jacob Townsend
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Ali Hashemi
- Inorganic
Systems Engineering group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Chong Liu
- Inorganic
Systems Engineering group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Evgeny A. Pidko
- TheoMAT
group, ITMO University, Lomonosova 9, St. Petersburg 191002, Russia
- Inorganic
Systems Engineering group, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
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24
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Lee YY, Zseng HW, Tsai ZH, Su YS, Hu CH, Lee HM. Isomeric Palladium Complexes Bearing Imidazopyridine-Based Abnormal Carbene Ligands: Synthesis, Characterization, and Catalytic Activity in Direct C–H Arylation Reaction. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00806] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yan-Yi Lee
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan 50058
| | - Han-Wei Zseng
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan 50058
| | - Zong-Han Tsai
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan 50058
| | - Yong-Siang Su
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan 50058
| | - Ching-Han Hu
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan 50058
| | - Hon Man Lee
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan 50058
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25
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26
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Polynski MV, Pidko EA. Intermetallic species in the Negishi coupling and their involvement in inhibition pathways. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00752k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The formation of M–Zn-intermetallic species (M = Ni, Pd) in the course of the Negishi reaction in THF solvent and their potential impact on in situ catalyst inhibition were investigated by DFT calculations carried out at two levels of theory.
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Affiliation(s)
- Mikhail V. Polynski
- TheoMAT Group
- ITMO University
- St. Petersburg
- Russia
- Zelinsky Institute of Organic Chemistry
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27
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28
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Mncube SG, Bala MD. Homogeneous oxidation reactions catalysed by in situ-generated triazolylidene copper(I) complexes. TRANSIT METAL CHEM 2018. [DOI: 10.1007/s11243-018-0278-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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29
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30
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Cheng H, Xiong M, Zhang N, Wang H, Miao Y, Su W, Yuan Y, Chen C, Verpoort F. Efficient N‐Heterocyclic Carbene/Ruthenium Catalytic Systems for the Alcohol Amidation with Amines: Involvement of Poly‐Carbene Complexes? ChemCatChem 2018. [DOI: 10.1002/cctc.201800945] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hua Cheng
- Department of Chemical Engineering and Food ScienceHubei University of Arts and Science Xiangyang 441053 P. R. China
| | - Mao‐Qian Xiong
- State Key Laborotory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P.R. China
| | - Ni Zhang
- Hubei University of Technology Engineering and Technology College Wuhan 430068 P. R. China
| | - Hua‐Jing Wang
- School of Chemistry, Chemical Engineering and Life SciencesWuhan University of Technology Wuhan 430070 P. R. China
| | - Yang Miao
- School of Materials Science and EngineeringWuhan University of Technology Wuhan 430070 P. R. China
| | - Wei Su
- School of Materials Science and EngineeringWuhan University of Technology Wuhan 430070 P. R. China
| | - Ye Yuan
- State Key Laborotory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P.R. China
| | - Cheng Chen
- State Key Laborotory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P.R. China
| | - Francis Verpoort
- State Key Laborotory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Wuhan 430070 P.R. China
- School of Materials Science and EngineeringWuhan University of Technology Wuhan 430070 P. R. China
- National Research Tomsk Polytechnic University Tomsk 634050 Russia
- Ghent University Global Campus Incheon 21985 Korea
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31
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Chernyshev VM, Khazipov OV, Shevchenko MA, Chernenko AY, Astakhov AV, Eremin DB, Pasyukov DV, Kashin AS, Ananikov VP. Revealing the unusual role of bases in activation/deactivation of catalytic systems: O-NHC coupling in M/NHC catalysis. Chem Sci 2018; 9:5564-5577. [PMID: 30061988 PMCID: PMC6048739 DOI: 10.1039/c8sc01353e] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 05/19/2018] [Indexed: 12/20/2022] Open
Abstract
Numerous reactions are catalyzed by complexes of metals (M) with N-heterocyclic carbene (NHC) ligands, typically in the presence of oxygen bases, which significantly shape the performance. It is generally accepted that bases are required for either substrate activation (exemplified by transmetallation in the Suzuki cross-coupling), or HX capture (e.g. in a variety of C-C and C-heteroatom couplings, the Heck reaction, C-H functionalization, heterocyclizations, etc.). This study gives insights into the behavior of M(ii)/NHC (M = Pd, Pt, Ni) complexes in solution under the action of bases conventionally engaged in catalysis (KOH, NaOH, t-BuOK, Cs2CO3, K2CO3, etc.). A previously unaddressed transformation of M(ii)/NHC complexes under conditions of typical base-mediated M/NHC catalyzed reactions is disclosed. Pd(ii) and Pt(ii) complexes widely used in catalysis react with the bases to give M(0) species and 2(5)-oxo-substituted azoles via an O-NHC coupling mechanism. Ni(NHC)2X2 complexes hydrolyze in the presence of aqueous potassium hydroxide, and undergo the same O-NHC coupling to give azolones and metallic nickel under the action of t-BuOK under anhydrous conditions. The study reveals a new role of NHC ligands as intramolecular reducing agents for the transformation of M(ii) into "ligandless" M(0) species. This demonstrates that the disclosed base-mediated O-NHC coupling reaction is integrated into the catalytic M/NHC systems and can define the mechanism of catalysis (molecular M/NHC vs. "NHC-free" cocktail-type catalysis). A proposed mechanism of the revealed transformation includes NHC-OR reductive elimination, as implied by a series of mechanistic studies including 18O labeling experiments.
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Affiliation(s)
- Victor M Chernyshev
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
| | - Oleg V Khazipov
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
| | - Maxim A Shevchenko
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
| | - Andrey Yu Chernenko
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
| | - Alexander V Astakhov
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
| | - Dmitry B Eremin
- Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , Moscow , 119991 , Russia .
| | - Dmitry V Pasyukov
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
| | - Alexey S Kashin
- Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , Moscow , 119991 , Russia .
| | - Valentine P Ananikov
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
- Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , Moscow , 119991 , Russia .
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32
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Baker MA, Tsai C, Noonan KJT. Diversifying Cross‐Coupling Strategies, Catalysts and Monomers for the Controlled Synthesis of Conjugated Polymers. Chemistry 2018; 24:13078-13088. [DOI: 10.1002/chem.201706102] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Matthew A. Baker
- Department of Chemistry Carnegie Mellon University 4400 Fifth Ave Pittsburgh PA 15213 USA
| | - Chia‐Hua Tsai
- Department of Chemistry Carnegie Mellon University 4400 Fifth Ave Pittsburgh PA 15213 USA
| | - Kevin J. T. Noonan
- Department of Chemistry Carnegie Mellon University 4400 Fifth Ave Pittsburgh PA 15213 USA
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33
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Khazipov OV, Shevchenko MA, Chernenko AY, Astakhov AV, Pasyukov DV, Eremin DB, Zubavichus YV, Khrustalev VN, Chernyshev VM, Ananikov VP. Fast and Slow Release of Catalytically Active Species in Metal/NHC Systems Induced by Aliphatic Amines. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00124] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Oleg V. Khazipov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk, 346428, Russia
| | - Maxim A. Shevchenko
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk, 346428, Russia
| | - Andrey Yu. Chernenko
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk, 346428, Russia
| | - Alexander V. Astakhov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk, 346428, Russia
| | - Dmitry V. Pasyukov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk, 346428, Russia
| | - Dmitry B. Eremin
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Yan V. Zubavichus
- National Research Center, “Kurchatov Institute”, Acad. Kurchatov Sq. 1, Moscow, 123182, Russia
| | - Victor N. Khrustalev
- National Research Center, “Kurchatov Institute”, Acad. Kurchatov Sq. 1, Moscow, 123182, Russia
- Peoples’ Friendship University of Russia, Miklukho-Maklay St. 6, Moscow, 117198, Russia
| | - Victor M. Chernyshev
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk, 346428, Russia
| | - Valentine P. Ananikov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk, 346428, Russia
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
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34
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Chernenko AY, Astakhov AV, Pasyukov DV, Dorovatovskii PV, Zubavichus YV, Khrustalev VN, Chernyshev VM. Pd-PEPPSI complexes based on 1,2,4-triazol-3-ylidene ligands as efficient catalysts in the Suzuki—Miyaura reaction. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2040-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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35
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Zhang L, Han YF. A macrocyclic silver polycarbene complex based on 1,2,4-triazole units: synthesis and postsynthetic modification. Dalton Trans 2018; 47:4267-4272. [DOI: 10.1039/c8dt00169c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A method for the synthesis of a new rectangular 1,2,4-triazole-containing macrocycle via photochemical [2 + 2] cycloaddition with a metal–carbene template was developed.
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Affiliation(s)
- Le Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- FM & EM International Joint Laboratory
- Northwest University
- Xi'an 710127
| | - Ying-Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- FM & EM International Joint Laboratory
- Northwest University
- Xi'an 710127
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36
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Nickel and palladium N-heterocyclic carbene complexes. Synthesis and application in cross-coupling reactions. Russ Chem Bull 2017. [DOI: 10.1007/s11172-017-1920-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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37
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Synthesis, structure and DFT conformation analysis of CpNiX(NHC) and NiX2(NHC)2 (X = SPh or Br) complexes. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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38
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Eremin DB, Ananikov VP. Understanding active species in catalytic transformations: From molecular catalysis to nanoparticles, leaching, “Cocktails” of catalysts and dynamic systems. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.12.021] [Citation(s) in RCA: 243] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Astakhov AV, Khazipov OV, Chernenko AY, Pasyukov DV, Kashin AS, Gordeev EG, Khrustalev VN, Chernyshev VM, Ananikov VP. A New Mode of Operation of Pd-NHC Systems Studied in a Catalytic Mizoroki–Heck Reaction. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00184] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Alexander V. Astakhov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Oleg V. Khazipov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Andrey Yu. Chernenko
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Dmitry V. Pasyukov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Alexey S. Kashin
- Zelinsky
Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| | - Evgeniy G. Gordeev
- Zelinsky
Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| | - Victor N. Khrustalev
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklay St. 6, Moscow 117198, Russia
| | - Victor M. Chernyshev
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Valentine P. Ananikov
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
- Zelinsky
Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
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40
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Henrion M, de P. Cardoso B, César V, Chetcuti MJ, Ritleng V. Nickel(II) Complexes of Highly σ-Donating Cyclic (Alkyl)(Amino)- and Malonate-Carbenes: Syntheses and Catalytic Studies. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00906] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Mickaël Henrion
- Université de Strasbourg, Ecole européenne de Chimie, Polymères
et Matériaux, CNRS, LCM UMR 7509, Equipe de Chimie Organométallique
Appliquée, 25 Rue
Becquerel, 67087 Strasbourg, France
| | - Bernardo de P. Cardoso
- Université de Strasbourg, Ecole européenne de Chimie, Polymères
et Matériaux, CNRS, LCM UMR 7509, Equipe de Chimie Organométallique
Appliquée, 25 Rue
Becquerel, 67087 Strasbourg, France
| | - Vincent César
- LCC-CNRS, Université de Toulouse, INPT, UPS, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Michael J. Chetcuti
- Université de Strasbourg, Ecole européenne de Chimie, Polymères
et Matériaux, CNRS, LCM UMR 7509, Equipe de Chimie Organométallique
Appliquée, 25 Rue
Becquerel, 67087 Strasbourg, France
| | - Vincent Ritleng
- Université de Strasbourg, Ecole européenne de Chimie, Polymères
et Matériaux, CNRS, LCM UMR 7509, Equipe de Chimie Organométallique
Appliquée, 25 Rue
Becquerel, 67087 Strasbourg, France
- Institut Universitaire de France, 1 Rue Descartes, 75231 Paris, France
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41
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Organonickel complexes encumbering bis-imidazolylidene carbene ligands: Synthesis, X-ray structure and catalytic insights on Buchwald-Hartwig amination reactions. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.12.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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42
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Rational design of complex molecular structures starting from readily available precursors. Russ Chem Bull 2017. [DOI: 10.1007/s11172-016-1470-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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43
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Levason W, Pugh D, Reid G. Imidazolium-based ionic liquids with large weakly coordinating anions. NEW J CHEM 2017. [DOI: 10.1039/c6nj03674k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An investigation into the intramolecular interactions in a series of imidazolium salts with weakly coordinating anions reveals that it is possible to control the strength and location of hydrogen bonding by varying the substituents on the imidazolium cation.
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Affiliation(s)
| | - David Pugh
- Chemistry
- University of Southampton
- Southampton
- UK
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44
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Qiu Y, Worch JC, Fortney A, Gayathri C, Gil RR, Noonan KJT. Nickel-Catalyzed Suzuki Polycondensation for Controlled Synthesis of Ester-Functionalized Conjugated Polymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01006] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yunyan Qiu
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Joshua C. Worch
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Andria Fortney
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Chakicherla Gayathri
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Roberto R. Gil
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Kevin J. T. Noonan
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
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