1
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Parra-Cadenas B, Bravo I, Ripoll Lorente MC, Ginés C, Elorriaga D, Carrillo-Hermosilla F. Boron Complexes with Propiolamidinato Ligands: Synthesis, Structure, and Photophysical Properties. Inorg Chem 2024; 63:12120-12132. [PMID: 38873888 PMCID: PMC11220760 DOI: 10.1021/acs.inorgchem.4c01241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/04/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
Two series of boron derivatives with propiolamidinato ligands, [BPh2{C(C≡CAr)(NR)2}] (Ar = Ph, p-MeOPh, p-FPh, p-Me2NPh, or phen; R = iPr or p-tolyl), were synthesized and structurally characterized. The corresponding propiolamidine (or propargylamidine) proligands have been obtained through sustainable methods. One is the catalytic hydroalkynylation of diisopropylcarbodiimide with different terminal alkynes, using simple ZnEt2 as a precatalyst. Alternatively, to obtain propiolamidines with aromatic groups on the nitrogen atoms, the formation of lithiated derivatives of terminal alkynes by reaction with n-BuLi in air and at room temperature, and subsequent addition to the di-p-tolylcarbodiimide, under the same conditions and using 2-MeTHF as a sustainable solvent, has been used for the first time. After reaction with BPh3, the corresponding boron amidinates were obtained, which are emissive in the solution state. The influence of the different substituents introduced into the ligands on the photophysical properties of the boron compounds has been studied. One of the obtained compounds can be used as a ratiometric fluorescent pH sensor in the acidic range.
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Affiliation(s)
- Blanca Parra-Cadenas
- Departamento
de Química Inorgánica, Orgánica y Bioquímica-Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Facultad
de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Iván Bravo
- Grupo
FOTOAIR, Unidad nanoDrug, Departamento de Química-Física,
Facultad de Farmacia de Albacete, Universidad
de Castilla-La Mancha, 02008 Albacete, Spain
| | - M. Consuelo Ripoll Lorente
- Grupo
FOTOAIR, Unidad nanoDrug, Departamento de Química-Física,
Facultad de Farmacia de Albacete, Universidad
de Castilla-La Mancha, 02008 Albacete, Spain
| | - Carlos Ginés
- Departamento
de Química Inorgánica, Orgánica y Bioquímica-Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Facultad
de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - David Elorriaga
- Departamento
de Química Orgánica e Inorgánica, Universidad de Oviedo, Julián Clavería 8, 33006 Oviedo, Spain
| | - Fernando Carrillo-Hermosilla
- Departamento
de Química Inorgánica, Orgánica y Bioquímica-Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Facultad
de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
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2
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Carrillo-Hermosilla F, Fernández-Galán R, Ramos A, Elorriaga D. Guanidinates as Alternative Ligands for Organometallic Complexes. Molecules 2022; 27:5962. [PMID: 36144698 PMCID: PMC9501388 DOI: 10.3390/molecules27185962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/30/2022] Open
Abstract
For decades, ligands such as phosphanes or cyclopentadienyl ring derivatives have dominated Coordination and Organometallic Chemistry. At the same time, alternative compounds have emerged that could compete either for a more practical and accessible synthesis or for greater control of steric and electronic properties. Guanidines, nitrogen-rich compounds, appear as one such potential alternatives as ligands or proligands. In addition to occurring in a plethora of natural compounds, and thus in compounds of pharmacological use, guanidines allow a wide variety of coordination modes to different metal centers along the periodic table, with their monoanionic chelate derivatives being the most common. In this review, we focused on the organometallic chemistry of guanidinato compounds, discussing selected examples of coordination modes, reactivity and uses in catalysis or materials science. We believe that these amazing ligands offer a new promise in Organometallic Chemistry.
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Affiliation(s)
- Fernando Carrillo-Hermosilla
- Departamento de Química Inorgánica, Orgánica y Bioquímica—Centro de Innovación en Química Avanzada (ORFEO−CINQA), Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
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3
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Tindall DJ, Menche M, Schelwies M, Paciello RA, Schäfer A, Comba P, Rominger F, Hashmi ASK, Schaub T. Ru0 or RuII: A Study on Stabilizing the “Activated” Form of Ru-PNP Complexes with Additional Phosphine Ligands in Alcohol Dehydrogenation and Ester Hydrogenation. Inorg Chem 2020; 59:5099-5115. [DOI: 10.1021/acs.inorgchem.0c00337] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Daniel J. Tindall
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
| | - Maximilian Menche
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
- BASF SE, Quantum Chemistry & Molecular Simulation, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Mathias Schelwies
- BASF SE, Organic Synthesis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Rocco A. Paciello
- BASF SE, Organic Synthesis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Ansgar Schäfer
- BASF SE, Quantum Chemistry & Molecular Simulation, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
| | - Peter Comba
- Institute of Inorganic Chemistry & Interdisciplinary Center for Scientific Computing, Heidelberg University, Im Neuenheimer Feld 275, D-69120 Heidelberg, Germany
| | - Frank Rominger
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Thomas Schaub
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 584, D-69120 Heidelberg, Germany
- BASF SE, Organic Synthesis, Carl-Bosch-Straße 38, D-67056 Ludwigshafen, Germany
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4
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Sanz-Marco A, Martinez-Erro S, Pauze M, Gómez-Bengoa E, Martín-Matute B. An umpolung strategy to react catalytic enols with nucleophiles. Nat Commun 2019; 10:5244. [PMID: 31748504 PMCID: PMC6868166 DOI: 10.1038/s41467-019-13175-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/24/2019] [Indexed: 01/07/2023] Open
Abstract
The selective synthesis of α-functionalized ketones with two similar enolizable positions can be accomplished using allylic alcohols and iridium(III) catalysts. A formal 1,3-hydrogen shift on allylic alcohols generates catalytic iridium-enolates in a stereospecific manner, which are able to react with electrophiles to yield α-functionalized ketones as single constitutional isomers. However, the employment of nucleophiles to react with the nucleophilic catalytic enolates in this chemistry is still unknown. Herein, we report an umpolung strategy for the selective synthesis of α-alkoxy carbonyl compounds by the reaction of iridium enolates and alcohols promoted by an iodine(III) reagent. Moreover, the protocol also works in an intramolecular fashion to synthesize 3(2H)-furanones from γ-keto allylic alcohols. Experimental and computational investigations have been carried out, and mechanisms are proposed for both the inter- and intramolecular reactions, explaining the key role of the iodine(III) reagent in this umpolung approach. Nucleophiles cannot be directly reacted with enolates due to polarity mismatching. Here, the authors developed an umpolung strategy for the selective synthesis of α-alkoxy carbonyl compounds by reaction of iridium enolates with nucleophilic alcohols promoted by an iodine(III) reagent.
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Affiliation(s)
- Amparo Sanz-Marco
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Samuel Martinez-Erro
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Martin Pauze
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden.,Departamento de Química Orgánica I, Universidad del País Vasco/UPV-EHU, Manuel de Lardizabal 3, Donostia - San Sebastián, 20018, Spain
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I, Universidad del País Vasco/UPV-EHU, Manuel de Lardizabal 3, Donostia - San Sebastián, 20018, Spain
| | - Belén Martín-Matute
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden.
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5
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Kumar R, Ujjval R, Thirupathi N. Half Sandwich Electron Deficient
N
,
N′
,
N′′
‐Triarylguanidinatoruthenium(II) Complexes: Syntheses, Reactivity Studies, and Structural Aspects. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Robin Kumar
- Department of Chemistry University of Delhi Delhi 110 007 India
| | - Rishabh Ujjval
- Department of Chemistry University of Delhi Delhi 110 007 India
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6
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7
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Francos J, Cadierno V. The chemistry of guanidinate complexes of the platinum group metals. Dalton Trans 2019; 48:9021-9036. [PMID: 31120072 DOI: 10.1039/c9dt01289c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this Perspective article, recent advances in the chemistry of platinum group metal complexes containing mono- and dianionic guanidinate ligands, i.e. [(RN)2C-NR2]- and [(RN)2C[double bond, length as m-dash]NR]2-, respectively, are presented. Synthetic and structural aspects, reactivity studies, and applications of these compounds are discussed.
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Affiliation(s)
- Javier Francos
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, IUQOEM, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain.
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8
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Sikalov AA, Pavlovskiy VV, Kirilchuk AA. Ruthenium(II) p-cymene complexes bearing 2‑(1,2,4‑triazol‑3‑yl)pyridines: Linkage isomerism and related NMR/DFT studies. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2018.11.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Cui XY, Tan CH, Leow D. Metal-catalysed reactions enabled by guanidine-type ligands. Org Biomol Chem 2019; 17:4689-4699. [DOI: 10.1039/c8ob02240b] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A review of metal–guanidine complexes, which are selective and powerful catalysts for organic transformations, asymmetric synthesis, and polymerisation.
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Affiliation(s)
- Xi-Yang Cui
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Choon-Hong Tan
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Dasheng Leow
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
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10
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Zhang W, Meng C, Liu Y, Tang Y, Li F. Auto-Tandem Catalysis with Ruthenium: From o
-Aminobenzamides and Allylic Alcohols to Quinazolinones via
Redox Isomerization/Acceptorless Dehydrogenation. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800660] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Weikang Zhang
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
| | - Chong Meng
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
| | - Yan Liu
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
| | - Yawen Tang
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
| | - Feng Li
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 People's Republic of China
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11
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Tang LH, Chen X, Jia AQ, Xin Z, Zhang QF. Ruthenium(II) complexes of bis-guanidine ligands with substituted Schiff bases. Syntheses and characterization of [RuH(CO){κ2-N,N-(2-HO-ArCH NN)2CNH2}(PPh3)2] (Ar = C6H4-, 5-Cl-C6H3-, 3,5-Br2-C6H2-). Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Martínez-Montero L, Gotor V, Gotor-Fernández V, Lavandera I. Mild Chemoenzymatic Oxidation of Allylic sec-Alcohols. Application to Biocatalytic Stereoselective Redox Isomerizations. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03293] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Lía Martínez-Montero
- Organic and Inorganic Chemistry
Department, University of Oviedo, Avenida Julián Clavería
s/n, 33006 Oviedo, Spain
| | - Vicente Gotor
- Organic and Inorganic Chemistry
Department, University of Oviedo, Avenida Julián Clavería
s/n, 33006 Oviedo, Spain
| | - Vicente Gotor-Fernández
- Organic and Inorganic Chemistry
Department, University of Oviedo, Avenida Julián Clavería
s/n, 33006 Oviedo, Spain
| | - Iván Lavandera
- Organic and Inorganic Chemistry
Department, University of Oviedo, Avenida Julián Clavería
s/n, 33006 Oviedo, Spain
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13
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Xia T, Wei Z, Spiegelberg B, Jiao H, Hinze S, de Vries JG. Isomerization of Allylic Alcohols to Ketones Catalyzed by Well-Defined Iron PNP Pincer Catalysts. Chemistry 2018; 24:4043-4049. [DOI: 10.1002/chem.201705454] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Indexed: 01/04/2023]
Affiliation(s)
- Tian Xia
- Leibniz-Institut für Katalyse e.V.; an der Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Zhihong Wei
- Leibniz-Institut für Katalyse e.V.; an der Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Brian Spiegelberg
- Leibniz-Institut für Katalyse e.V.; an der Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V.; an der Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Sandra Hinze
- Leibniz-Institut für Katalyse e.V.; an der Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Johannes G. de Vries
- Leibniz-Institut für Katalyse e.V.; an der Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
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14
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Gámez-Rivera SA, Francos J, Borge J, Cadierno V. Mononuclear Ruthenium and Osmium Complexes with a Bicyclic Guanidinate Ligand: Synthesis and Catalytic Behavior in Olefin Isomerization Processes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700727] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sebastián A. Gámez-Rivera
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC); Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8 33006 Oviedo Spain
| | - Javier Francos
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC); Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8 33006 Oviedo Spain
| | - Javier Borge
- Departamento de Química Física y Analítica; Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Oviedo; Julián Clavería 8 33006 Oviedo Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC); Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8 33006 Oviedo Spain
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15
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Correa-Ayala E, Campos-Alvarado C, Chávez D, Morales-Morales D, Hernández-Ortega S, García JJ, Flores-Álamo M, Miranda-Soto V, Parra-Hake M. RutheniumII(p-cymene) complexes bearing ligands of the type 1-[2′-(methoxycarbonyl)phenyl]-3-[4′-X-phenyl]triazenide (X = F, Cl, Br, I): Synthesis, structure and catalytic activity. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.06.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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16
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Erbing E, Vázquez-Romero A, Bermejo Gómez A, Platero-Prats AE, Carson F, Zou X, Tolstoy P, Martín-Matute B. General, Simple, and Chemoselective Catalysts for the Isomerization of Allylic Alcohols: The Importance of the Halide Ligand. Chemistry 2016; 22:15659-15663. [PMID: 27650170 DOI: 10.1002/chem.201603825] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Indexed: 01/10/2023]
Abstract
Remarkably simple IrIII catalysts enable the isomerization of primary and sec-allylic alcohols under very mild reaction conditions. X-ray absorption spectroscopy (XAS) and mass spectrometry (MS) studies indicate that the catalysts, with the general formula [Cp*IrIII ], require a halide ligand for catalytic activity, but no additives or additional ligands are needed.
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Affiliation(s)
- Elis Erbing
- Department of Organic Chemistry, Stockholm University, Stockholm, 10691, Sweden.,Berzelii Center EXSELENT on Porous Materials, 10691, Stockholm, Sweden
| | - Ana Vázquez-Romero
- Department of Organic Chemistry, Stockholm University, Stockholm, 10691, Sweden.,Berzelii Center EXSELENT on Porous Materials, 10691, Stockholm, Sweden
| | - Antonio Bermejo Gómez
- Department of Organic Chemistry, Stockholm University, Stockholm, 10691, Sweden.,Berzelii Center EXSELENT on Porous Materials, 10691, Stockholm, Sweden
| | - Ana E Platero-Prats
- Department of Organic Chemistry, Stockholm University, Stockholm, 10691, Sweden.,Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, 10691, Sweden
| | - Fabian Carson
- Berzelii Center EXSELENT on Porous Materials, 10691, Stockholm, Sweden.,Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, 10691, Sweden
| | - Xiaodong Zou
- Berzelii Center EXSELENT on Porous Materials, 10691, Stockholm, Sweden.,Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, 10691, Sweden
| | | | - Belén Martín-Matute
- Department of Organic Chemistry, Stockholm University, Stockholm, 10691, Sweden. .,Berzelii Center EXSELENT on Porous Materials, 10691, Stockholm, Sweden.
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17
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Synthesis, characterisation and cytotoxic activity of organoruthenium(II)-halido complexes with 1 H -benzimidazole-2-carboxylic acid. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.06.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Antiñolo A, Carrillo-Hermosilla F, Fernández-Galán R, Martínez-Ferrer J, Alonso-Moreno C, Bravo I, Moreno-Blázquez S, Salgado M, Villaseñor E, Albaladejo J. Tris(pentafluorophenyl)borane as an efficient catalyst in the guanylation reaction of amines. Dalton Trans 2016; 45:10717-29. [PMID: 27278089 DOI: 10.1039/c6dt01237j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tris(pentafluorophenyl)borane, [B(C6F5)3], has been used as an efficient catalyst in the guanylation reaction of amines with carbodiimide under mild conditions. A combined approach involving NMR spectroscopy and DFT calculations was employed to gain a better insight into the mechanistic features of this process. The results allowed us to propose a new Lewis acid-assisted Brønsted acidic pathway for the guanylation reaction. The process starts with the interaction of tris(pentafluorphenyl)borane and the amine to form the corresponding adduct, [(C6F5)3B-NRH2] , followed by a straightforward proton transfer to one of the nitrogen atoms of the carbodiimide, (i)PrN[double bond, length as m-dash]C[double bond, length as m-dash]N(i)Pr, to produce, in two consequent steps, a guanidine-borane adduct, [(C6F5)3B-NRC(N(i)PrH)2] . The rupture of this adduct liberates the guanidine product RNC(N(i)PrH)2 and interaction with additional amine restarts the catalytic cycle. DFT studies have been carried out in order to study the thermodynamic characteristics of the proposed pathway. Significant borane adducts with amines and guanidines have been isolated and characterized by multinuclear NMR in order to study the N-B interaction and to propose the existence of possible Frustrated Lewis Pairs. Additionally, the molecular structures of significant components of the catalytic cycle, namely 4-tert-butylaniline-[B(C6F5)3] adduct and both free and [B(C6F5)3]-bonded 1-(phenyl)-2,3-diisopropylguanidine, and respectively, have been established by X-ray diffraction.
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Affiliation(s)
- Antonio Antiñolo
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, E-13071 Ciudad Real, Spain.
| | - Fernando Carrillo-Hermosilla
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, E-13071 Ciudad Real, Spain.
| | - Rafael Fernández-Galán
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, E-13071 Ciudad Real, Spain.
| | - Jaime Martínez-Ferrer
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, E-13071 Ciudad Real, Spain.
| | - Carlos Alonso-Moreno
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Farmacia, Universidad de Castilla-La Mancha, Campus Universitario de Albacete, 02071-Albacete, Spain
| | - Iván Bravo
- Departamento de Química-Física, Facultad de Farmacia, Universidad de Castilla-La Mancha, Campus Universitario de Albacete, 02071-Albacete, Spain
| | - Sonia Moreno-Blázquez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, E-13071 Ciudad Real, Spain.
| | - Manuel Salgado
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, E-13071 Ciudad Real, Spain.
| | - Elena Villaseñor
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, E-13071 Ciudad Real, Spain.
| | - José Albaladejo
- Departamento de Química-Física, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, E-13071 Ciudad Real, Spain
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19
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20
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Synthesis, structures and catalytic activity of 1,3-bis(aryl)triazenide(p-cymene)ruthenium(II) complexes. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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21
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Regioselective C−H Hydroarylation of Internal Alkynes with Arenecarboxylates: Carboxylates as Deciduous Directing Groups. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600894] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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22
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Huang L, Biafora A, Zhang G, Bragoni V, Gooßen LJ. Regioselective C−H Hydroarylation of Internal Alkynes with Arenecarboxylates: Carboxylates as Deciduous Directing Groups. Angew Chem Int Ed Engl 2016; 55:6933-7. [DOI: 10.1002/anie.201600894] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Liangbin Huang
- FB Chemie-Organische Chemie; Technische Universität Kaiserslautern; Erwin-Schrodinger-Str. Geb. 54 67663 Kaiserslautern Germany
| | - Agostino Biafora
- FB Chemie-Organische Chemie; Technische Universität Kaiserslautern; Erwin-Schrodinger-Str. Geb. 54 67663 Kaiserslautern Germany
| | - Guodong Zhang
- FB Chemie-Organische Chemie; Technische Universität Kaiserslautern; Erwin-Schrodinger-Str. Geb. 54 67663 Kaiserslautern Germany
| | - Valentina Bragoni
- FB Chemie-Organische Chemie; Technische Universität Kaiserslautern; Erwin-Schrodinger-Str. Geb. 54 67663 Kaiserslautern Germany
| | - Lukas J. Gooßen
- FB Chemie-Organische Chemie; Technische Universität Kaiserslautern; Erwin-Schrodinger-Str. Geb. 54 67663 Kaiserslautern Germany
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23
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Francos J, González-Liste PJ, Menéndez-Rodríguez L, Crochet P, Cadierno V, Borge J, Antiñolo A, Fernández-Galán R, Carrillo-Hermosilla F. Half-Sandwich Guanidinate-Osmium(II) Complexes: Synthesis and Application in the Selective Dehydration of Aldoximes. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501221] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Kishan R, Kumar R, Baskaran S, Sivasankar C, Thirupathi N. Ionic and Neutral Half‐Sandwich Guanidinatoruthenium(II) Complexes and Their Solution Behavior. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500395] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ram Kishan
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Robin Kumar
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Sambath Baskaran
- Department of Chemistry, School of Physical, Chemical and Applied Sciences, Pondicherry University, Puducherry 605014, India
| | - Chinnappan Sivasankar
- Department of Chemistry, School of Physical, Chemical and Applied Sciences, Pondicherry University, Puducherry 605014, India
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25
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Chlupatý T, Bílek M, Moncol’ J, Růžičková Z, Růžička A. Addition of dimethylaluminium chloride to N,N′-Disubstituted carbodiimides. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.03.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Menéndez-Rodrı́guez L, Tomás-Mendivil E, Francos J, Crochet P, Cadierno V, Antiñolo A, Fernández-Galán R, Carrillo-Hermosilla F. Reactivity of the Dimer [{RuCl(μ-Cl)(η3:η3-C10H16)}2] (C10H16 = 2,7-Dimethylocta-2,6-diene-1,8-diyl) toward Guanidines: Access to Ruthenium(IV) and Ruthenium(II) Guanidinate Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00070] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lucı́a Menéndez-Rodrı́guez
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Quı́mica Avanzada
(ORFEO-CINQA), Departamento de Quı́mica Orgánica
e Inorgánica, Instituto Universitario de Quı́mica
Organometálica “Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Claverı́a 8, E-33006 Oviedo, Spain
| | - Eder Tomás-Mendivil
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Quı́mica Avanzada
(ORFEO-CINQA), Departamento de Quı́mica Orgánica
e Inorgánica, Instituto Universitario de Quı́mica
Organometálica “Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Claverı́a 8, E-33006 Oviedo, Spain
| | - Javier Francos
- Department
of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Pascale Crochet
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Quı́mica Avanzada
(ORFEO-CINQA), Departamento de Quı́mica Orgánica
e Inorgánica, Instituto Universitario de Quı́mica
Organometálica “Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Claverı́a 8, E-33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Quı́mica Avanzada
(ORFEO-CINQA), Departamento de Quı́mica Orgánica
e Inorgánica, Instituto Universitario de Quı́mica
Organometálica “Enrique Moles”, Facultad de Quı́mica, Universidad de Oviedo, Julián Claverı́a 8, E-33006 Oviedo, Spain
| | - Antonio Antiñolo
- Centro
de Innovación en Quı́mica Avanzada (ORFEO-CINQA),
Departamento de Quı́mica Inorgánica, Orgánica
y Bioquı́mica, Facultad de Ciencias y Tecnologı́as
Quı́micas-Campus de Ciudad Real, Universidad de Castilla-La Mancha, Campus
Universitario, E-13071 Ciudad Real, Spain
| | - Rafael Fernández-Galán
- Centro
de Innovación en Quı́mica Avanzada (ORFEO-CINQA),
Departamento de Quı́mica Inorgánica, Orgánica
y Bioquı́mica, Facultad de Ciencias y Tecnologı́as
Quı́micas-Campus de Ciudad Real, Universidad de Castilla-La Mancha, Campus
Universitario, E-13071 Ciudad Real, Spain
| | - Fernando Carrillo-Hermosilla
- Centro
de Innovación en Quı́mica Avanzada (ORFEO-CINQA),
Departamento de Quı́mica Inorgánica, Orgánica
y Bioquı́mica, Facultad de Ciencias y Tecnologı́as
Quı́micas-Campus de Ciudad Real, Universidad de Castilla-La Mancha, Campus
Universitario, E-13071 Ciudad Real, Spain
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27
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Cheng H, Xiao Y, Lu C, Zhao B, Wang Y, Yao Y. Synthesis and characterization of bis(amidate) rare-earth metal amides and their application in catalytic addition of amines to carbodiimides. NEW J CHEM 2015. [DOI: 10.1039/c5nj00506j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five bis(amidate) rare-earth metal amides were successfully employed in guanidination, and the Nd-based catalyst showed the highest reactivity.
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Affiliation(s)
- Hao Cheng
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
| | - Yang Xiao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
| | - Chengrong Lu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
| | - Bei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
| | - Yaorong Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Dushu Lake Campus
- Soochow University
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28
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Vázquez-Romero A, Gómez AB, Martín-Matute B. Acid- and Iridium-Catalyzed Tandem 1,3-Transposition/3,1-Hydrogen Shift/Chlorination of Allylic Alcohols. ACS Catal 2014. [DOI: 10.1021/cs501618h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ana Vázquez-Romero
- Department of Organic Chemistry and ‡Berzelii Center
EXSELENT on Porous Materials, The Arrhenius Laboratory, Stockholm University, Stockholm, 106 91, Sweden
| | - Antonio Bermejo Gómez
- Department of Organic Chemistry and ‡Berzelii Center
EXSELENT on Porous Materials, The Arrhenius Laboratory, Stockholm University, Stockholm, 106 91, Sweden
| | - Belén Martín-Matute
- Department of Organic Chemistry and ‡Berzelii Center
EXSELENT on Porous Materials, The Arrhenius Laboratory, Stockholm University, Stockholm, 106 91, Sweden
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29
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Kechaou-Perrot M, Vendier L, Bastin S, Sotiropoulos JM, Miqueu K, Menéndez-Rodríguez L, Crochet P, Cadierno V, Igau A. Tethered η5-Oxocyclohexadienyl Piano-Stool Ruthenium(II) Complexes: A New Class of Catalysts? Organometallics 2014. [DOI: 10.1021/om501073q] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Manel Kechaou-Perrot
- CNRS, LCC (Laboratoire de
Chimie de Coordination), 205 Route
de Narbonne, 31077 Toulouse, Cedex 4, France
- Université de Toulouse, UPS, INPT, 31077 Toulouse, France
| | - Laure Vendier
- CNRS, LCC (Laboratoire de
Chimie de Coordination), 205 Route
de Narbonne, 31077 Toulouse, Cedex 4, France
- Université de Toulouse, UPS, INPT, 31077 Toulouse, France
| | - Stéphanie Bastin
- CNRS, LCC (Laboratoire de
Chimie de Coordination), 205 Route
de Narbonne, 31077 Toulouse, Cedex 4, France
- Université de Toulouse, UPS, INPT, 31077 Toulouse, France
| | - Jean-Marc Sotiropoulos
- Université de Pau & des Pays de l’Adour, UMR CNRS 5254, IPREM 2 Avenue du Président P. Angot, 64053 Pau, Cedex 09, France
| | - Karinne Miqueu
- Université de Pau & des Pays de l’Adour, UMR CNRS 5254, IPREM 2 Avenue du Président P. Angot, 64053 Pau, Cedex 09, France
| | - Lucía Menéndez-Rodríguez
- Laboratorio de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Pascale Crochet
- Laboratorio de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Alain Igau
- CNRS, LCC (Laboratoire de
Chimie de Coordination), 205 Route
de Narbonne, 31077 Toulouse, Cedex 4, France
- Université de Toulouse, UPS, INPT, 31077 Toulouse, France
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30
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Elorriaga D, Carrillo-Hermosilla F, Antiñolo A, López-Solera I, Fernández-Galán R, Villaseñor E. Mixed amido-/imido-/guanidinato niobium complexes: synthesis and the effect of ligands on insertion reactions. Dalton Trans 2014; 43:17434-44. [DOI: 10.1039/c4dt01975j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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31
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Crochet P, Cadierno V. Arene-ruthenium(ii) complexes with hydrophilic P-donor ligands: versatile catalysts in aqueous media. Dalton Trans 2014; 43:12447-62. [DOI: 10.1039/c4dt01494d] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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32
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Manzini S, Poater A, Nelson DJ, Cavallo L, Nolan SP. How phenyl makes a difference: mechanistic insights into the ruthenium(ii)-catalysed isomerisation of allylic alcohols. Chem Sci 2014. [DOI: 10.1039/c3sc52612g] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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33
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Alonso-Moreno C, Antiñolo A, Carrillo-Hermosilla F, Otero A. Guanidines: from classical approaches to efficient catalytic syntheses. Chem Soc Rev 2014; 43:3406-25. [DOI: 10.1039/c4cs00013g] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review focuses on the metal-mediated catalytic addition of amines to carbodiimides as an atom-economical alternative to the classical synthesis of guanidines.
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Affiliation(s)
- Carlos Alonso-Moreno
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Farmacia
- Universidad de Castilla-La Mancha
- 02071-Albacete, Spain
| | - Antonio Antiñolo
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071-Ciudad Real, Spain
| | - Fernando Carrillo-Hermosilla
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071-Ciudad Real, Spain
| | - Antonio Otero
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- Universidad de Castilla-La Mancha
- 13071-Ciudad Real, Spain
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34
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Schmidt B, Hauke S. Cross metathesis of allyl alcohols: how to suppress and how to promote double bond isomerization. Org Biomol Chem 2013; 11:4194-206. [PMID: 23676990 DOI: 10.1039/c3ob40167g] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under standard conditions the cross metathesis of allyl alcohols and methyl acrylate is accompanied by the formation of ketones, resulting from uncontrolled and undesired double bond isomerization. By conducting the CM in the presence of phenol, the catalyst loading and the reaction time required for quantiative conversion can be reduced, and isomerization can be suppressed. On the other hand, consecutive isomerization can be deliberately promoted by evaporating excess methyl acrylate after completing cross metathesis and by adding a base or silane as chemical triggers.
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Affiliation(s)
- Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie, Organische Synthesechemie, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm, Germany.
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35
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Lastra-Barreira B, Díez J, Crochet P, Fernández I. Functionalized arene-ruthenium(II) complexes: dangling vs. tethering side chain. Dalton Trans 2013; 42:5412-20. [PMID: 23420334 DOI: 10.1039/c3dt33051f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The reactivity of compounds [RuCl2(η(6)-C6H5OCH2CH2OH)(L)] (L = phosphine or phosphite) towards the chloride abstractor AgSbF6 has been investigated. Thus, the treatment of the triphenylphosphite complex [RuCl2(η(6)-C6H5OCH2CH2OH){P(OPh)3}] with one equivalent of AgSbF6 gave rise to the formation of the dinuclear dichloro-bridged species [{Ru(μ-Cl)(η(6)-C6H5OCH2CH2OH){P(OPh)3}}2](2+) as the hexafluoroantimonate salt. On the other hand, the triphenylphosphine analog [RuCl2(η(6)-C6H5OCH2CH2OH)(PPh3)] led, under the same experimental conditions, to the di-ruthenium derivative [{RuCl(η(6)-C6H5OCH2CH2OH)(PPh3)}2(μ-Cl)][SbF6] containing only one Cl-bridge. In sharp contrast, treatment of precursors [RuCl2(η(6)-C6H5CH2CH2CH2OH)(L)] (L = P(OPh)3, PPh3, P(OEt)3) with AgSbF6 resulted in the clean formation of the tethered compounds [RuCl{η(6):κ(1)(O)-C6H5CH2CH2CH2OH}(L)][SbF6]. The differences in reactivity observed have been rationalized by theoretical calculations.
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Affiliation(s)
- Beatriz Lastra-Barreira
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Departamento de Química Orgánica e Inorgánica - IUQOEM, Universidad de Oviedo, C/Julián Clavería 8, E-33006 Oviedo, Spain
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36
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Elorriaga D, Carrillo-Hermosilla F, Antiñolo A, Suárez FJ, López-Solera I, Fernández-Galán R, Villaseñor E. Asymmetric niobium guanidinates as intermediates in the catalytic guanylation of amines. Dalton Trans 2013; 42:8223-30. [DOI: 10.1039/c3dt50477h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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37
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Edelmann FT. Recent Progress in the Chemistry of Metal Amidinates and Guanidinates. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-407692-1.00002-3] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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38
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Lastra-Barreira B, Díaz-Álvarez AE, Menéndez-Rodríguez L, Crochet P. Eugenol isomerization promoted by arene–ruthenium(ii) complexes in aqueous media: influence of the pH on the catalytic activity. RSC Adv 2013. [DOI: 10.1039/c3ra43030h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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