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Martínez de Sarasa Buchaca M, Gaona MA, Sánchez-Barba LF, Garcés A, Rodríguez AM, Rodríguez-Diéguez A, de la Cruz-Martínez F, Castro-Osma JA, Lara-Sánchez A. Zinc-Catalyzed Cyclization of Alkynyl Derivatives: Substrate Scope and Mechanistic Insights. Inorg Chem 2024. [PMID: 39011646 DOI: 10.1021/acs.inorgchem.4c00832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
Novel alkyl zinc complexes supported by acetamidate/thioacetamidate heteroscorpionate ligands have been successfully synthesized and characterized. These complexes exhibited different coordination modes depending on the electronic and steric effects of the acetamidate/thioacetamidate moiety. Their catalytic activity has been tested toward the hydroelementation reactions of alkynyl alcohol/acid substrates, affording the corresponding enol ether/unsaturated lactone products under mild reaction conditions. Kinetic studies have been performed and confirmed that reactions are first-order in [catalyst] and zero-order in [alkynyl substrate]. DFT calculations supported a reaction mechanism through the formation of the catalytically active species, an alkoxide-zinc intermediate, by a protonolysis reaction of the Zn-alkyl bond with the alcohol group of the substrate. Based on the experimental and theoretical results, a catalytic cycle has been proposed.
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Affiliation(s)
- Marc Martínez de Sarasa Buchaca
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Instituto Regional de Investigación Científica Aplicada-IRICA, Ciudad Real 13071, Spain
| | - Miguel A Gaona
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Instituto Regional de Investigación Científica Aplicada-IRICA, Ciudad Real 13071, Spain
| | - Luis F Sánchez-Barba
- Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles 28933, Spain
| | - Andrés Garcés
- Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles 28933, Spain
| | - Ana M Rodríguez
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Instituto Regional de Investigación Científica Aplicada-IRICA, Ciudad Real 13071, Spain
| | - Antonio Rodríguez-Diéguez
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Granada 18071, Spain
| | - Felipe de la Cruz-Martínez
- Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia, Universidad de Castilla-La Mancha, Albacete 02071, Spain
| | - José A Castro-Osma
- Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia, Universidad de Castilla-La Mancha, Albacete 02071, Spain
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Instituto Regional de Investigación Científica Aplicada-IRICA, Ciudad Real 13071, Spain
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2
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Morelli MB, Caviglia M, Santini C, Del Gobbo J, Zeppa L, Del Bello F, Giorgioni G, Piergentili A, Quaglia W, Battocchio C, Bertelà F, Amatori S, Meneghini C, Iucci G, Venditti I, Dolmella A, Di Palma M, Pellei M. Copper-Based Complexes with Adamantane Ring-Conjugated bis(3,5-Dimethyl-pyrazol-1-yl)acetate Ligand as Promising Agents for the Treatment of Glioblastoma. J Med Chem 2024; 67:9662-9685. [PMID: 38831692 DOI: 10.1021/acs.jmedchem.4c00821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
The new ligand L2Ad, obtained by conjugating the bifunctional species bis(3,5-dimethylpyrazol-1-yl)-acetate and the drug amantadine, was used as a chelator for the synthesis of new Cu complexes 1-5. Their structures were investigated by synchrotron radiation-induced X-ray photoelectron spectroscopy (SR-XPS), near-edge X-ray absorption fine structure (NEXAFS) spectroscopy, and by combining X-ray absorption fine structure (XAFS) spectroscopy techniques and DFT modeling. The structure of complex 3 was determined by single-crystal X-ray diffraction analysis. Tested on U87, T98, and U251 glioma cells, Cu(II) complex 3 and Cu(I) complex 5 decreased cell viability with IC50 values significantly lower than cisplatin, affecting cell growth, proliferation, and death. Their effects were prevented by treatment with the Cu chelator tetrathiomolybdate, suggesting the involvement of copper in their cytotoxic activity. Both complexes were able to increase ROS production, leading to DNA damage and death. Interestingly, nontoxic doses of 3 or 5 enhanced the chemosensitivity to Temozolomide.
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Affiliation(s)
- Maria Beatrice Morelli
- School of Pharmacy, Immunopathology and Molecular Medicine Unit, University of Camerino, via Madonna delle Carceri 9, 62032 Camerino, Italy
| | - Miriam Caviglia
- School of Science and Technology, Chemistry Division, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Carlo Santini
- School of Science and Technology, Chemistry Division, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Jo' Del Gobbo
- School of Science and Technology, Chemistry Division, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Laura Zeppa
- School of Pharmacy, Immunopathology and Molecular Medicine Unit, University of Camerino, via Madonna delle Carceri 9, 62032 Camerino, Italy
| | - Fabio Del Bello
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Gianfabio Giorgioni
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Alessandro Piergentili
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Wilma Quaglia
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
| | - Chiara Battocchio
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Federica Bertelà
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Simone Amatori
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Carlo Meneghini
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Giovanna Iucci
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Iole Venditti
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Alessandro Dolmella
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy
| | - Michele Di Palma
- Department of Biomedical Sciences, University of Padova, Viale G. Colombo 3, 35131 Padova, Italy
| | - Maura Pellei
- School of Science and Technology, Chemistry Division, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino, Italy
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3
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Martins LM. Catalytic applications of recent metal poly(1H-pyrazol-1-yl)-methane scorpionates. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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4
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Moya-Lopez C, González-Fuentes J, Bravo I, Chapron D, Bourson P, Alonso-Moreno C, Hermida-Merino D. Polylactide Perspectives in Biomedicine: From Novel Synthesis to the Application Performance. Pharmaceutics 2022; 14:pharmaceutics14081673. [PMID: 36015299 PMCID: PMC9415503 DOI: 10.3390/pharmaceutics14081673] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 11/24/2022] Open
Abstract
The incessant developments in the pharmaceutical and biomedical fields, particularly, customised solutions for specific diseases with targeted therapeutic treatments, require the design of multicomponent materials with multifunctional capabilities. Biodegradable polymers offer a variety of tailored physicochemical properties minimising health adverse side effects at a low price and weight, which are ideal to design matrices for hybrid materials. PLAs emerge as an ideal candidate to develop novel materials as are endowed withcombined ambivalent performance parameters. The state-of-the-art of use of PLA-based materials aimed at pharmaceutical and biomedical applications is reviewed, with an emphasis on the correlation between the synthesis and the processing conditions that define the nanostructure generated, with the final performance studies typically conducted with either therapeutic agents by in vitro and/or in vivo experiments or biomedical devices.
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Affiliation(s)
- Carmen Moya-Lopez
- Laboratoire Matériaux Optiques Photonique et Systèmes (LMOPS), CentraleSupélec, Université de Lorraine, 57000 Metz, France
| | - Joaquín González-Fuentes
- Centro Regional de Investigaciones Biomédicas (CRIB), 02008 Albacete, Spain
- Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, 02008 Albacete, Spain
| | - Iván Bravo
- Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, 02008 Albacete, Spain
- Unidad NanoCRIB, Centro Regional de Investigaciones Biomédicas, 02008 Albacete, Spain
| | - David Chapron
- Laboratoire Matériaux Optiques Photonique et Systèmes (LMOPS), CentraleSupélec, Université de Lorraine, 57000 Metz, France
| | - Patrice Bourson
- Laboratoire Matériaux Optiques Photonique et Systèmes (LMOPS), CentraleSupélec, Université de Lorraine, 57000 Metz, France
| | - Carlos Alonso-Moreno
- Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, 02008 Albacete, Spain
- Unidad NanoCRIB, Centro Regional de Investigaciones Biomédicas, 02008 Albacete, Spain
| | - Daniel Hermida-Merino
- DUBBLE@ESRF BP CS40220, 38043 Grenoble, France
- Departamento de Física Aplicada, CINBIO, Lagoas-Marcosende Campus, Universidade de Vigo, 36310 Vigo, Spain
- Correspondence: ; Tel.: +33-(0)476882375
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5
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Moya-Lopez C, Bravo I, Castro-Osma JA, Chapron D, Bourson P, Vagner C, Cochez M, Leoné N, Lara-Sánchez A, Alonso-Moreno C, Hermida-Merino D. Synthesis of High Molecular Weight Stereo-Di-Block Copolymers Driven by a Co-Initiator Free Catalyst. Polymers (Basel) 2022; 14:232. [PMID: 35054639 PMCID: PMC8779727 DOI: 10.3390/polym14020232] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 02/01/2023] Open
Abstract
Stereo-diblock copolymers of high molecular weight polylactide (PLA) were synthetized by the one pot-sequential addition method assisted by a heteroscorpionate catalyst without the need of a co-initiator. The alkyl zinc organometallic heteroscorpionate derivative (Zn(Et)(κ3-bpzteH)] (bpzteH = 2,2-bis(3,5-dimethylpyrazol-1-yl)-1-para-tolylethoxide) proved to assist in the mechanism of reaction following a coordination-insertion process. Kinetic studies along with the linear correlation between monomer and number average molecular weight (Mn) conversion, and the narrow polydispersities supported the truly living polymerization character of the initiator, whereas matrix-assisted laser desorption/Ionization-time of flight (MALDI-TOF) studies showed a very low order of transesterification. The high stereo-control attained for the afforded high molecular weight derivatives was revealed by homonuclear decoupled 1H NMR spectra and polarimetry measurements. The nanostructure of the PLA derivatives was studied by both wide-angle X-ray scattering (WAXS) and differential scanning calorimetry (DSC) and the stereocomplex phase of the PLA stereo-diblock copolymers was successfully identified.
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Affiliation(s)
- Carmen Moya-Lopez
- LMOPS, Centrale Supélec, Université de Lorraine, 57000 Metz, France; (C.M.-L.); (D.C.); (P.B.); (C.V.); (M.C.)
| | - Ivan Bravo
- Centro Regional de Investigaciones Biomédicas, Unidad NanoCRIB, 02008 Albacete, Spain; (I.B.); (J.A.C.-O.)
- Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, 02008 Albacete, Spain
| | - José A. Castro-Osma
- Centro Regional de Investigaciones Biomédicas, Unidad NanoCRIB, 02008 Albacete, Spain; (I.B.); (J.A.C.-O.)
- Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, 02008 Albacete, Spain
| | - David Chapron
- LMOPS, Centrale Supélec, Université de Lorraine, 57000 Metz, France; (C.M.-L.); (D.C.); (P.B.); (C.V.); (M.C.)
| | - Patrice Bourson
- LMOPS, Centrale Supélec, Université de Lorraine, 57000 Metz, France; (C.M.-L.); (D.C.); (P.B.); (C.V.); (M.C.)
| | - Christelle Vagner
- LMOPS, Centrale Supélec, Université de Lorraine, 57000 Metz, France; (C.M.-L.); (D.C.); (P.B.); (C.V.); (M.C.)
| | - Marianne Cochez
- LMOPS, Centrale Supélec, Université de Lorraine, 57000 Metz, France; (C.M.-L.); (D.C.); (P.B.); (C.V.); (M.C.)
| | - Nils Leoné
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, 6200MD Maastricht, The Netherlands;
| | - Agustín Lara-Sánchez
- 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;
| | - Carlos Alonso-Moreno
- Centro Regional de Investigaciones Biomédicas, Unidad NanoCRIB, 02008 Albacete, Spain; (I.B.); (J.A.C.-O.)
- Facultad de Farmacia de Albacete, Universidad de Castilla-La Mancha, 02008 Albacete, Spain
| | - Daniel Hermida-Merino
- Netherlands Organisation for Scientific Research (NWO), DUBBLE@ESRF BP CS40220, 38043 Grenoble, France
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Cooper EN, Averkiev B, Day VW, Sues PE. Ring-Opening Polymerization of ε-Caprolactone Utilizing Aluminum Alkyl Complexes Bearing Dianionic Scorpionate Ligands. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elizabeth N. Cooper
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66503, United States
| | - Boris Averkiev
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66503, United States
| | - Victor W. Day
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Peter E. Sues
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66503, United States
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7
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Seguí P, Aguilera-Correa JJ, Domínguez-Jurado E, Sánchez-López CM, Pérez-Tanoira R, Ocaña AV, Castro-Osma JA, Esteban J, Marcilla A, Alonso-Moreno C, Pérez-Martínez FC, Molina-Alarcón M. A novel bis(pyrazolyl)methane compound as a potential agent against Gram-positive bacteria. Sci Rep 2021; 11:16306. [PMID: 34381091 PMCID: PMC8357914 DOI: 10.1038/s41598-021-95609-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/27/2021] [Indexed: 02/05/2023] Open
Abstract
This study was designed to propose alternative therapeutic compounds to fight against bacterial pathogens. Thus, a library of nitrogen-based compounds bis(triazolyl)methane (1T–7T) and bis(pyrazolyl)methane (1P–11P) was synthesised following previously reported methodologies and their antibacterial activity was tested using the collection strains of Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, and Pseudomonas aeruginosa. Moreover, the novel compound 2P was fully characterized by IR, UV–Vis and NMR spectroscopy. To evaluate antibacterial activity, minimal inhibitory concentrations (MICs), minimal bactericidal concentrations (MBCs), minimum biofilm inhibitory concentrations (MBICs), and minimum biofilm eradication concentrations (MBECs) assays were carried out at different concentrations (2–2000 µg/mL). The MTT assay and Resazurin viability assays were performed in both human liver carcinoma HepG2 and human colorectal adenocarcinoma Caco-2 cell lines at 48 h. Of all the synthesised compounds, 2P had an inhibitory effect on Gram-positive strains, especially against S. aureus. The MIC and MBC of 2P were 62.5 and 2000 µg/mL against S. aureus, and 250 and 2000 µg/mL against E. faecalis, respectively. However, these values were > 2000 µg/mL against E. coli and P. aeruginosa. In addition, the MBICs and MBECs of 2P against S. aureus were 125 and > 2000 µg/mL, respectively, whereas these values were > 2000 µg/mL against E. faecalis, E. coli, and P. aeruginosa. On the other hand, concentrations up to 250 µg/mL of 2P were non-toxic doses for eukaryotic cell cultures. Thus, according to the obtained results, the 2P nitrogen-based compound showed a promising anti-Gram-positive effect (especially against S. aureus) both on planktonic state and biofilm, at non-toxic concentrations.
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Affiliation(s)
- Pedro Seguí
- Department of Otorhinolaryngology, Complejo Hospitalario Universitario, 02006, Albacete, Spain.,Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, 02001, Albacete, Spain
| | | | - Elena Domínguez-Jurado
- NanoCRIB Unit, Centro Regional de Investigaciones Biomédicas, 02008, Albacete, Spain.,School of Pharmacy, University of Castilla-La Mancha, 02008, Albacete, Spain
| | - Christian M Sánchez-López
- Department of Farmàcia i Tecnologia Farmacèutica i Parasitologia, University of Valencia, Burjassot, 46100, Valencia, Spain.,Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe-Universitat de València, 46026, Valencia, Spain
| | - Ramón Pérez-Tanoira
- Clinical Microbiology Department, Hospital Universitario Príncipe de Asturias, Madrid, Spain.,Biomedicine and Biotechnology Department, School of Medicine, University of Alcalá de Henares, Madrid, Spain
| | - Ana V Ocaña
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, 02001, Albacete, Spain
| | - José A Castro-Osma
- NanoCRIB Unit, Centro Regional de Investigaciones Biomédicas, 02008, Albacete, Spain.,School of Pharmacy, University of Castilla-La Mancha, 02008, Albacete, Spain
| | - Jaime Esteban
- Clinical Microbiology Department, IIS-Fundacion Jimenez Diaz-UAM, 28040, Madrid, Spain
| | - Antonio Marcilla
- Department of Farmàcia i Tecnologia Farmacèutica i Parasitologia, University of Valencia, Burjassot, 46100, Valencia, Spain.,Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe-Universitat de València, 46026, Valencia, Spain
| | - Carlos Alonso-Moreno
- NanoCRIB Unit, Centro Regional de Investigaciones Biomédicas, 02008, Albacete, Spain.,School of Pharmacy, University of Castilla-La Mancha, 02008, Albacete, Spain
| | - Francisco C Pérez-Martínez
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, 02001, Albacete, Spain.
| | - Milagros Molina-Alarcón
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, 02001, Albacete, Spain.,Department of Nursing, University of Castilla-La Mancha, 02071, Albacete, Spain
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Abstract
Dianionic N,N-chelating ligands play a crucial role in coordination chemistry, but reports on related complexes remain limited to certain types of ligands. In here, the reactions of two diprotic ligands, i.e., a biguanide and a carbothiamide, with trimethylaluminium, are reported, which give rise to mono- and dinuclear aluminium(III) complexes. In addition, single deprotonation of the diprotic biguanide using potassium bis(trimethylsilyl)amide gives rise to a one-dimensional coordination polymer. All complexes have been fully characterized, and their solid-state structures were determined by single crystal X-ray diffraction analysis.
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9
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Kosuru SR, Lai FJ, Chang YL, Li CY, Lai YC, Ding S, Wu KH, Chen HY, Lo YH. Collaboration between Trinuclear Aluminum Complexes Bearing Bipyrazoles in the Ring-Opening Polymerization of ε-Caprolactone. Inorg Chem 2021; 60:10535-10549. [PMID: 34232620 DOI: 10.1021/acs.inorgchem.1c01192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Trinuclear aluminum complexes bearing bipyrazoles were synthesized, and their catalytic activity for ε-caprolactone (CL) polymerization was investigated. DBu2Al3Me5 exhibited higher catalytic activity than did the dinuclear aluminum complex LBu2Al2Me4 (16 times as high for CL polymerization; [CL]:[DBu2Al3Me5]:[BnOH] = 100:0.5:5, [DBu2Al3Me5] = 10 mM, conversion 93% after 18 min at room temperature). Density functional theory calculations revealed a polymerization mechanism in which CL first approached the central Al atom and then moved to an external Al. The coordinated CL ring was opened because the repulsion of two tert-butyl groups on the ligands pushed an alkoxide initiator on an external Al to initiate CL. In these trinuclear Al catalysts, the central Al plays a role in monomer capture and then collaborates with the external Al to activate CL, accelerating polymerization.
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Affiliation(s)
- Someswara Rao Kosuru
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Feng-Jie Lai
- Department of Dermatology, Chi Mei Medical Center, Tainan, Taiwan, Republic of China.,Center for General Education, Southern Taiwan University of Science and Technology, Tainan, Taiwan, Republic of China
| | - Yu-Lun Chang
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Chen-Yu Li
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
| | - Shangwu Ding
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China.,Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, Republic of China
| | - Kuo-Hui Wu
- Department of Chemistry, National Central University, Taoyuan 32001, Taiwan, Republic of China
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China.,Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, Republic of China.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan, Republic of China
| | - Yung-Han Lo
- Department of Chemistry, Faculty of Science and Technology, Keio University, Minato City 108-8345, Tokyo, Japan
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10
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Niza E, Božik M, Bravo I, Clemente-Casares P, Lara-Sanchez A, Juan A, Klouček P, Alonso-Moreno C. PEI-coated PLA nanoparticles to enhance the antimicrobial activity of carvacrol. Food Chem 2020; 328:127131. [DOI: 10.1016/j.foodchem.2020.127131] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 05/13/2020] [Accepted: 05/22/2020] [Indexed: 02/04/2023]
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Zubkevich SV, Tuskaev VA, Gagieva SC, Kayda AS, Khrustalev VN, Pavlov AA, Zarubin DN, Bulychev BM. NNNO‐Heteroscorpionate nickel (II) and cobalt (II) complexes for ethylene oligomerization: the unprecedented formation of odd carbon number olefins. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5873] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sergey V. Zubkevich
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory 11 Moscow 119991 Russia
| | - Vladislav A. Tuskaev
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory 11 Moscow 119991 Russia
- Russian Academy of Sciences A.N. Nesmeyanov Institute of Organoelement Compounds Vavilova st. 28 Moscow 119991 Russia
| | - Svetlana Ch. Gagieva
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory 11 Moscow 119991 Russia
| | - Anatoliy S. Kayda
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory 11 Moscow 119991 Russia
| | - Victor N. Khrustalev
- Peoples' Friendship University of Russia (RUDN University) Miklukho‐Maklay St., 6 Moscow 117198 Russian Federation
- Russian Academy of Sciences Zelinsky Institute of Organic Chemistry Leninsky Prospekt 47 Moscow 119991 Russia
| | - Alexander A. Pavlov
- Russian Academy of Sciences A.N. Nesmeyanov Institute of Organoelement Compounds Vavilova st. 28 Moscow 119991 Russia
| | - Dmitry N. Zarubin
- Russian Academy of Sciences A.N. Nesmeyanov Institute of Organoelement Compounds Vavilova st. 28 Moscow 119991 Russia
| | - Boris M. Bulychev
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory 11 Moscow 119991 Russia
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12
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Navarro M, Sánchez-Barba LF, Garcés A, Fernández-Baeza J, Fernández I, Lara-Sánchez A, Rodríguez AM. Bimetallic scorpionate-based helical organoaluminum complexes for efficient carbon dioxide fixation into a variety of cyclic carbonates. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00593b] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The binuclear aluminum complexes [AlR2(κ2-NN′;κ2-NN′)AlR2] with TBAB/PPNCl behave as excellent systems for cyclic carbonate formation from CO2 with challenging epoxides.
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Affiliation(s)
- Marta Navarro
- Departamento de Biología y Geología
- Física y Química Inorgánica
- Universidad Rey Juan Carlos
- Móstoles
- Spain
| | - Luis F. Sánchez-Barba
- Departamento de Biología y Geología
- Física y Química Inorgánica
- Universidad Rey Juan Carlos
- Móstoles
- Spain
| | - Andrés Garcés
- Departamento de Biología y Geología
- Física y Química Inorgánica
- Universidad Rey Juan Carlos
- Móstoles
- Spain
| | - Juan Fernández-Baeza
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Castilla-La Mancha
- Ciudad Real
- Spain
| | - Israel Fernández
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - Agustín Lara-Sánchez
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Castilla-La Mancha
- Ciudad Real
- Spain
| | - Ana M. Rodríguez
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Castilla-La Mancha
- Ciudad Real
- Spain
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13
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Niza E, Noblejas-López MDM, Bravo I, Nieto-Jiménez C, Castro-Osma JA, Canales-Vázquez J, Lara-Sanchez A, Galán Moya EM, Burgos M, Ocaña A, Alonso-Moreno C. Trastuzumab-Targeted Biodegradable Nanoparticles for Enhanced Delivery of Dasatinib in HER2+ Metastasic Breast Cancer. NANOMATERIALS 2019; 9:nano9121793. [PMID: 31888247 PMCID: PMC6955794 DOI: 10.3390/nano9121793] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 12/14/2022]
Abstract
Dasatinib (DAS) is a multikinase inhibitor that acts on several signaling kinases. DAS is used as a second-line treatment for chronic accelerated myeloid and Philadelphia chromosome-positive acute lymphoblastic leukemia. The therapeutic potential of DAS in other solid tumours is under evaluation. As for many other compounds, an improvement in their pharmacokinetic and delivery properties would potential augment the efficacy. Antibody-targeted biodegradable nanoparticles can be useful in targeted cancer therapy. DAS has shown activity in human epidermal growth factor receptor 2 (HER2) positive tumors, so conjugation of this compound with the anti-HER2 antibody trastuzumab (TAB) with the use of nanocarriers could improve its efficacy. TAB-targeted DAS-loaded nanoparticles were generated by nanotechnology. The guided nanocarriers enhanced in vitro cytotoxicity of DAS against HER2 human breast cancer cell lines. Cellular mechanistic, release studies and nanoparticles stability were undertaken to provide evidences for positioning DAS-loaded TAB-targeted nanoparticles as a potential strategy for further development in HER2-overexpressing breast cancer therapy.
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Affiliation(s)
- Enrique Niza
- Dpto. Inorgánica, Orgánica y Bioquímica, Facultad de Farmacia de Albacete, UCLM, 02071 Albacete, Spain; (E.N.); (J.A.C.-O.)
| | - María del Mar Noblejas-López
- Oncología Traslacional, Unidad de Investigación del Complejo Hospitalario Universitario de Albacete, 02071 Albacete, Spain; (M.d.M.N.-L.); (C.N.-J.); (M.B.)
- Centro Regional de Investigaciones Biomédicas (CRIB), UCLM, 02008 Albacete, Spain;
| | - Iván Bravo
- Dpto. Química Física, Facultad de Farmacia de Albacete, UCLM, 02071 Albacete, Spain;
| | - Cristina Nieto-Jiménez
- Oncología Traslacional, Unidad de Investigación del Complejo Hospitalario Universitario de Albacete, 02071 Albacete, Spain; (M.d.M.N.-L.); (C.N.-J.); (M.B.)
- Centro Regional de Investigaciones Biomédicas (CRIB), UCLM, 02008 Albacete, Spain;
| | - José Antonio Castro-Osma
- Dpto. Inorgánica, Orgánica y Bioquímica, Facultad de Farmacia de Albacete, UCLM, 02071 Albacete, Spain; (E.N.); (J.A.C.-O.)
| | | | - Agustín Lara-Sanchez
- Dpto. Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas de Ciudad Real, UCLM, 13075 Ciudad Real, Spain;
| | - Eva M. Galán Moya
- Centro Regional de Investigaciones Biomédicas (CRIB), UCLM, 02008 Albacete, Spain;
| | - Miguel Burgos
- Oncología Traslacional, Unidad de Investigación del Complejo Hospitalario Universitario de Albacete, 02071 Albacete, Spain; (M.d.M.N.-L.); (C.N.-J.); (M.B.)
| | - Alberto Ocaña
- Oncología Traslacional, Unidad de Investigación del Complejo Hospitalario Universitario de Albacete, 02071 Albacete, Spain; (M.d.M.N.-L.); (C.N.-J.); (M.B.)
- Experimental Therapeutics Unit, Hospital clínico San Carlos, IdISSC and CIBERONC, 28029 Madrid, Spain
- Correspondence: (A.O.); (C.A.-M.); Tel.: +34-96-7599-200 (C.A.-M.)
| | - Carlos Alonso-Moreno
- Dpto. Inorgánica, Orgánica y Bioquímica, Facultad de Farmacia de Albacete, UCLM, 02071 Albacete, Spain; (E.N.); (J.A.C.-O.)
- Correspondence: (A.O.); (C.A.-M.); Tel.: +34-96-7599-200 (C.A.-M.)
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14
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Luna Barros M, Cushion MG, Schwarz AD, Turner ZR, Mountford P. Magnesium, calcium and zinc [N 2N'] heteroscorpionate complexes. Dalton Trans 2019; 48:4124-4138. [PMID: 30638242 DOI: 10.1039/c8dt04985h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of sterically demanding N2N' heteroscorpionate pro-ligands (HC(tBu2pz)2SiMe2N(H)R (R = iPr, tBu, Ph, Xyl)) has been prepared via a straightforward modular synthetic route. An extensive study into the synthesis and characterisation of lithium, magnesium, calcium and zinc complexes supported by both 3,5-tBu and 3,5-Me substituted N2N' ligand families has been conducted. Attempted deprotonation of the pro-ligands with nBuLi afforded the corresponding lithium salts Li{HC(tBu2pz)2SiMe2NR} (R = iPr (1), tBu (2), Ph (3) and Xyl (4)) but air- and thermal-sensitivity limited the yields of these potentially useful precursors; only the sterically encumbered ligand system allowed clean reactivity. Magnesium methyl complexes Mg{HC(tBu2pz)2SiMe2NR}Me (R = iPr (5) and R = Ph (6)) were prepared using an excess of the Grignard reagent MeMgCl. Magnesium butyl complexes were synthesised in good yields using the dialkyl precursor MgnBu2 to afford Mg{HC(R'2pz)2SiMe2NR}nBu (R' = Me; R = iPr (7), tBu (8), Ad (9), Ph (10). R' = tBu; R = iPr (11), Ph (12)). Protonolylsis reactions were used to synthesise magnesium and calcium amide complexes Mg{HC(R'2pz)2SiMe2NR}{N(SiHMe2)2} (R' = Me; R = iPr (13), tBu (14), Ph (15). R' = tBu; R = Ph (16)) or Mg{HC(R'2pz)2SiMe2NR}{N(SiMe3)2} (R' = Me; R = iPr (17), tBu (18), Ph (19). R' = tBu; R = Ph (20)), and Ca{HC(R'2pz)2SiMe2NR}{N(SiMe2)2} (L) (R' = Me; L = thf; R = iPr (21), tBu (22), Ph (23). R' = tBu; L = none; R = Ph (24). Zinc methyl complexes Zn{HC(R'2pz)2SiMe2NR}Me (R' = Me; R = iPr (25), tBu (26), Ph (27). R' = tBu; R = Ph (28)) were prepared by reaction of the N2N' heteroscorpionate pro-ligands with ZnMe2. In preliminary studies, magnesium amide complexes 16 and 20 were evaluated as initiators for the ring-opening polymerisation (ROP) of ε-caprolactone (ε-CL) and rac-lactide (rac-LA). Although the overall polymerisation control was poor, 16 and 20 were found to be active initiators.
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Affiliation(s)
- Mariana Luna Barros
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
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15
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Martínez J, de la Cruz-Martínez F, Gaona MA, Pinilla-Peñalver E, Fernández-Baeza J, Rodríguez AM, Castro-Osma JA, Otero A, Lara-Sánchez A. Influence of the Counterion on the Synthesis of Cyclic Carbonates Catalyzed by Bifunctional Aluminum Complexes. Inorg Chem 2019; 58:3396-3408. [PMID: 30735040 DOI: 10.1021/acs.inorgchem.8b03475] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
New bifunctional aluminum complexes have been prepared with the aim of studying the effect of a counterion on the synthesis of cyclic carbonates from epoxides and carbon dioxide (CO2). Neutral ligand 1 was used as a precursor to obtain four novel mesylate, chloride, bromide, and iodide zwitterionic NNO ligands (2-5). The reaction of these ligands with 1 or 2 equiv of AlR3 (R = Me, Et) allowed the synthesis of mono- and bimetallic bifunctional aluminum complexes [AlR2(κ2-mbpzappe)]X [X = Cl, R = Me (6), Et (7); X = Br, R = Me (8), Et (9); X = I, R = Me (10), Et (11)] and [{AlR2(κ2-mbpzappe)}(μ-O){AlR3}]X [X = MeSO3, R = Me (12), Et (13); X = Cl, R = Me (14), Et (15); X = Br, R = Me (16), Et (17); X = I, R = Me (18), Et (19)] via alkane elimination. These complexes were studied as catalysts for the synthesis of cyclic carbonates from epoxides and CO2. Iodide complex 11 showed to be the most active catalyst for terminal epoxides, whereas bromide complex 9 was found to be the optimal catalyst when internal epoxides were used, showing the importance of the nucleophile cocatalyst on the catalytic activity.
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Affiliation(s)
- Javier Martínez
- 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.,Laboratorio de Química Inorgánica, Facultad de Química , Universidad Católica de Chile , Casilla 306 , Santiago-22 6094411 , Chile
| | - Felipe de la Cruz-Martínez
- 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
| | - Miguel A Gaona
- 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
| | - Esther Pinilla-Peñalver
- 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
| | - Juan Fernández-Baeza
- 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
| | - Ana M Rodríguez
- 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
| | - José A Castro-Osma
- Departamento de Quı́mica Inorgánica, Orgánica y Bioquı́mica-Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Facultad de Farmacia , Universidad de Castilla-La Mancha , 02071 Albacete , Spain
| | - Antonio Otero
- 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
| | - Agustín Lara-Sánchez
- 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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16
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Gaona MA, de la Cruz-Martínez F, Fernández-Baeza J, Sánchez-Barba LF, Alonso-Moreno C, Rodríguez AM, Rodríguez-Diéguez A, Castro-Osma JA, Otero A, Lara-Sánchez A. Synthesis of helical aluminium catalysts for cyclic carbonate formation. Dalton Trans 2019; 48:4218-4227. [DOI: 10.1039/c9dt00323a] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Helical aluminium complexes have been prepared and used as catalysts for cyclic carbonate synthesis.
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Affiliation(s)
- Miguel A. Gaona
- Universidad de Castilla-La Mancha
- Dpto. de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- 13071-Ciudad Real
| | - Felipe de la Cruz-Martínez
- Universidad de Castilla-La Mancha
- Dpto. de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- 13071-Ciudad Real
| | - Juan Fernández-Baeza
- Universidad de Castilla-La Mancha
- Dpto. de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- 13071-Ciudad Real
| | - Luis F. Sánchez-Barba
- Universidad Rey Juan Carlos
- Departamento de Biología y Geología
- Física y Química Inorgánica
- Móstoles
- Spain
| | - Carlos Alonso-Moreno
- Universidad de Castilla-La Mancha
- Dpto. de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Farmacia
- 02071-Albacete
| | - Ana M. Rodríguez
- Universidad de Castilla-La Mancha
- Dpto. de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- 13071-Ciudad Real
| | | | - José A. Castro-Osma
- Universidad de Castilla-La Mancha
- Dpto. de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Farmacia
- 02071-Albacete
| | - Antonio Otero
- Universidad de Castilla-La Mancha
- Dpto. de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- 13071-Ciudad Real
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha
- Dpto. de Química Inorgánica
- Orgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas
- 13071-Ciudad Real
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17
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Martínez de Sarasa Buchaca M, de la Cruz-Martínez F, Martínez J, Alonso-Moreno C, Fernández-Baeza J, Tejeda J, Niza E, Castro-Osma JA, Otero A, Lara-Sánchez A. Alternating Copolymerization of Epoxides and Anhydrides Catalyzed by Aluminum Complexes. ACS OMEGA 2018; 3:17581-17589. [PMID: 31458360 PMCID: PMC6643587 DOI: 10.1021/acsomega.8b02759] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 12/04/2018] [Indexed: 06/10/2023]
Abstract
The optimization of an organoaluminum catalytic system for the copolymerization of epoxides and anhydrides is presented. For this purpose, the influence of different variables in the process, such as catalysts, cocatalyst, solvent, or substrates, has been analyzed. Kinetic studies, a proposal for the catalytic mechanism, and full characterization of the copolymers obtained are also discussed. Finally, a new copolymer, poly(limonene succinate), obtained by the optimized catalytic system is reported.
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Affiliation(s)
- Marc Martínez de Sarasa Buchaca
- 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
| | - Felipe de la Cruz-Martínez
- 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
| | - Javier Martínez
- Laboratorio
de Química Inorgánica, Facultad de Química, Universidad Católica de Chile, Casilla 306, 6094411 Santiago-22, Chile
| | - Carlos Alonso-Moreno
- Departamento
de Química Inorgánica, Orgánica y Bioquímica-Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Facultad
de Farmacia, Universidad de Castilla-La
Mancha, 02071 Albacete, Spain
| | - Juan Fernández-Baeza
- 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
| | - Juan Tejeda
- 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
| | - Enrique Niza
- Departamento
de Química Inorgánica, Orgánica y Bioquímica-Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Facultad
de Farmacia, Universidad de Castilla-La
Mancha, 02071 Albacete, Spain
| | - José A. Castro-Osma
- Departamento
de Química Inorgánica, Orgánica y Bioquímica-Centro
de Innovación en Química Avanzada (ORFEO-CINQA), Facultad
de Farmacia, Universidad de Castilla-La
Mancha, 02071 Albacete, Spain
| | - Antonio Otero
- 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
| | - Agustín Lara-Sánchez
- 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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18
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Garcés A, Sánchez-Barba LF, Fernández-Baeza J, Otero A, Fernández I, Lara-Sánchez A, Rodríguez AM. Organo-Aluminum and Zinc Acetamidinates: Preparation, Coordination Ability, and Ring-Opening Polymerization Processes of Cyclic Esters. Inorg Chem 2018; 57:12132-12142. [PMID: 30212185 DOI: 10.1021/acs.inorgchem.8b01723] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The reaction of the highly sterically demanding NNN'-heteroscorpionate protioligands pbptamd-H, tbptamd-H, and phbptamd-H (a) and the low sterically hindered analogs pbpamd-H, tbpamd-H, and phbpamd-H (b), with 1 equiv of AlR3 (R = Me, Et) proceed in high yields to give two families of complexes: the mononuclear dialkyl aluminum bidentate-acetamidinates [AlR2(κ2- N' N')] (κ2- N' N' = pbptamd, R = Me 1, Et 2; tbptamd, R = Me 3, Et 4; phbptamd, R = Me 5, Et 6) and the monodentate-acetamidinates [AlR2(κ2- NN')] (κ2- NN' = tbpamd, R = Me 7; phbpamd, R = Me 8, Et 9). In complexes 7-9, the presence of two possible CH-NH tautomers as low extended π-N-C-N'(sp2)-Al and high extended π-HN-C2-N'(sp2)-Al complexes, respectively, could be identified. Moreover, the reaction of aluminum dimethyls 7 and 8 with ZnMe2 afforded the isolation of the more stable scorpionate zinc monoalkyls [Zn(Me)(κ3- NNN')] ( NNN' = tbpamd 10 and phbpamd 11), through a very unusual ligand exchange process, involving a zinc-to-aluminum transmetalation of an alkyl group. The X-ray crystal structures of 1, 3, 7, and 8, as well as that of 11, confirmed unambiguously the different κ2-arrangements proposed for bi- or monodentate acetamidinate dialkyls 1-6 and 7-9, respectively, the presence of NH tautomer in 7 and 8, and a κ3- NNN' coordination in monoalkyl 11. Density functional theory calculations were used to explore the three different favored κ2-arrangements found in acetamidinate aluminum dialkyls 1-9, the relative stability of both CH-NH tautomers, and the ligand transfer reaction leading to the formation of κ3- NNN' zinc monoalkyls 10 and 11. Interestingly, dialkyls 1, 5, 7, and 8 can act as highly efficient single-component living initiators for the ring-opening polymerization of ε-caprolactone and rac-lactide in mild conditions after hours. These initiators efficiently mediated the immortal polymerization in the presence of excess of benzyl alcohol (up to 20 equiv), as evidenced by the narrow dispersity values and the good agreement between the experimental Mn values and monomer/benzyl alcohol ratios. In addition, the most sterically hindered initiator, 5, exhibits enhanced levels of heteroselectivity on the produced PLAs, reaching Ps values up to 0.70.
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Affiliation(s)
- Andrés Garcés
- Departamento de Biología y Geología, Física y Química Inorgánica , Universidad Rey Juan Carlos, Móstoles , 28933 Madrid , Spain
| | - Luis F Sánchez-Barba
- Departamento de Biología y Geología, Física y Química Inorgánica , Universidad Rey Juan Carlos, Móstoles , 28933 Madrid , Spain
| | - Juan Fernández-Baeza
- Universidad de Castilla-La Mancha , Departamento de Química Inorgánica, Orgánica y Bioquímica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Campus Universitario , 13071 Ciudad Real , Spain
| | - Antonio Otero
- Universidad de Castilla-La Mancha , Departamento de Química Inorgánica, Orgánica y Bioquímica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Campus Universitario , 13071 Ciudad Real , Spain
| | - Israel Fernández
- Departamento de Química Orgánica I, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas , Universidad Complutense de Madrid , 28040 Madrid , Spain
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha , Departamento de Química Inorgánica, Orgánica y Bioquímica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Campus Universitario , 13071 Ciudad Real , Spain
| | - Ana M Rodríguez
- Universidad de Castilla-La Mancha , Departamento de Química Inorgánica, Orgánica y Bioquímica, Centro de Innovación en Química Avanzada (ORFEO-CINQA), Campus Universitario , 13071 Ciudad Real , Spain
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19
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Martínez J, Martínez de Sarasa Buchaca M, de la Cruz-Martínez F, Alonso-Moreno C, Sánchez-Barba LF, Fernandez-Baeza J, Rodríguez AM, Rodríguez-Diéguez A, Castro-Osma JA, Otero A, Lara-Sánchez A. Versatile organoaluminium catalysts based on heteroscorpionate ligands for the preparation of polyesters. Dalton Trans 2018; 47:7471-7479. [PMID: 29786721 DOI: 10.1039/c8dt01553h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A series of alkyl aluminium complexes based on heteroscorpionate ligands were designed as catalysts for the ring-opening polymerisation of cyclic esters and ring-opening copolymerisation of epoxides and anhydrides. Treatment of AlX3 (X = Me, Et) with ligands bpzbeH [bpzbe = 1,1-bis(3,5-dimethylpyrazol-1-yl)-3,3-dimethyl-2-butoxide], bpzteH [bpzte = 2,2-bis(3,5-dimethylpyrazol-1-yl)-1-para-tolylethoxide], and (R,R)-bpzmmH [(R,R)-bpzmm = (1R)-1-{(1R)-6,6-dimethyl-bicyclo[3.1.1]-2-hepten-2-yl}-2,2-bis(3,5-dimethylpyrazol-1-yl)ethoxide] for 2 hours at 0 °C afforded the mononuclear dialkyl aluminium complexes [AlMe2{κ2-bpzbe}] (1), [AlEt2{κ2-bpzbe}] (2), [AlMe2{κ2-(R,R)-bpzmm}] (3) and [AlEt2{κ2-(R,R)-bpzmm}] (4), and the dinuclear dialkyl complexes [AlMe2{κ2-bpzte}]2 (5) and [AlEt2{κ2-bpzte}]2 (6). The molecular structures of the new complexes were determined by spectroscopic methods and confirmed by X-ray crystallography. The alkyl-containing aluminium complexes can act as highly efficient single-component initiators for the ring-opening polymerisation of ε-caprolactone and l-lactide and for the ring-opening copolymerisation of cyclohexene oxide and phthalic anhydride to give a range of biodegradable polyesters.
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Affiliation(s)
- J Martínez
- Universidad de Castilla-La Mancha, Dpto. de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, 13071-Ciudad Real, Spain.
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Xue YY, Sui JJ, Xu J, Ding YH. Theoretical Designs for Organoaluminum C 2Al 4R 4 with Well-Separated Al(I) and Al(III). ACS OMEGA 2017; 2:5407-5414. [PMID: 31457809 PMCID: PMC6644568 DOI: 10.1021/acsomega.7b00487] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 08/16/2017] [Indexed: 05/04/2023]
Abstract
It is well-known that the chemistry of aluminum is dominated by Al(III) in the +3 oxidation state. Only during the past 2 decades has the chemistry of Al(I) and Al(II) been rapidly developed. However, if Al(I) and Al(III) are combined, the inherently high reactivities of Al(I) and Al(III) mostly result in their coupling with each other or interacting with surrounding elements, which easily results in significant deactivation or quenching of the desired oxidation states, as in the case of reported mixed valent Al-compounds. In this article, we report an unprecedented type of organoaluminum system, C2Al4R4 (R = H, SiH3, Si(C6H5)3, SiiPrDis2, SiMe(SitBu3)2), whose lowest-energy structure, C2Al4R4-01, contains two Al(I) and two Al(III) atoms. The global nature and bonding motif of the parent C2Al4R4-01 (R = H) were supported by an extensive global isomeric search, CBS-QB3 energy calculations, adaptive natural density partitioning, and bond order analysis. Interestingly and in sharp contrast to most organoaluminum species, C2Al4R4-01 is associated with little multicenter bonding. C2Al4R4-01 has a high feasibility of being observed either in the gas or condensed phases (with suitable substitutents). With well-separated Al(I) and Al(III), C2Al4R4-01 (with suitable substitutents) could serve as the first Al/Al frustrated Lewis pair.
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Affiliation(s)
- Ying-ying Xue
- Laboratory
of Theoretical and Computational Chemistry, Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, China
| | - Jing-jing Sui
- Laboratory
of Theoretical and Computational Chemistry, Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, China
| | - Jing Xu
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
- E-mail: (J.X)
| | - Yi-hong Ding
- Laboratory
of Theoretical and Computational Chemistry, Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, China
- E-mail: (Y.-h.D)
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Osorio Meléndez D, Castro-Osma JA, Lara-Sánchez A, Rojas RS, Otero A. Ring-opening polymerization and copolymerization of cyclic esters catalyzed by amidinate aluminum complexes. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28629] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Danay Osorio Meléndez
- Nucleus Millennium Chemical Processes and Catalysis (CPC); Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile; Santiago Chile
| | - José A. Castro-Osma
- Universidad de Castilla-La Mancha; Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia; Albacete 02071 Spain
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha; Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas; Ciudad Real 13071 Spain
| | - René S. Rojas
- Nucleus Millennium Chemical Processes and Catalysis (CPC); Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile; Santiago Chile
| | - Antonio Otero
- Universidad de Castilla-La Mancha; Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas; Ciudad Real 13071 Spain
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22
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Alkorta I, Claramunt RM, Díez-Barra E, Elguero J, de la Hoz A, López C. The organic chemistry of poly(1 H -pyrazol-1-yl)methanes. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Martínez J, Castro-Osma JA, Alonso-Moreno C, Rodríguez-Diéguez A, North M, Otero A, Lara-Sánchez A. One-Component Aluminum(heteroscorpionate) Catalysts for the Formation of Cyclic Carbonates from Epoxides and Carbon Dioxide. CHEMSUSCHEM 2017; 10:1175-1185. [PMID: 27863128 DOI: 10.1002/cssc.201601370] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 10/25/2016] [Indexed: 06/06/2023]
Abstract
New neutral and zwitterionic chiral NNO-donor scorpionate ligands 1 and 2 were designed to obtain new mononuclear and dinuclear NNO-heteroscorpionate aluminum complexes. Reaction of 1 with [AlR3 ] (R=Me, Et) in a 1:1 or 1:2 molar ratio afforded the neutral mononuclear alkyl complexes [AlR2 (κ2 -bpzappe)] {R=Me (3), Et (4); bpzappeH=2,2-bis(3,5-dimethylpyrazol-1-yl)-1-[4-(dimethylamino)phenyl]-1-phenylethanol} and bimetallic complexes [{AlR2 (κ2 -bpzappe)}(μ-O){AlR3 }] [R=Me (5), Et (6)]. By reaction of complexes 3-6 with PhCH2 Br, mononuclear and dinuclear cationic aluminum complexes [AlR2 (κ2 -bbpzappe)]Br {R=Me (7), Et (8); bbpzappeH=N-benzyl-4-[2,2-bis(3,5-dimethyl-1H-pyrazol-1-yl)-1-hydroxy-1-phenylethyl]-N,N-dimethylbenzenaminium bromide} and [{AlR2 (κ2 -bbpzappe)}(μ-O){AlR3 }]Br [R=Me (9), Et (10)] were synthesized. Both neutral aluminum complexes in the presence of Bu4 NBr and cationic aluminum complexes were investigated as catalysts for cyclic carbonate formation from epoxides and carbon dioxide. Amongst them, complex 10 was found to be an efficient one-component catalyst for the synthesis of cyclic carbonates from both monosubstituted and internal epoxides and was shown to have broad substrate scope.
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Affiliation(s)
- Javier Martínez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, 13071-, Ciudad Real, Spain
- Green Chemistry Centre of Excellence, Department of Chemistry, The University of York, York, YO10 5DD, UK
| | - José A Castro-Osma
- Departamento de Química Inorgánica, Orgánica y Bioquímica, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, 13071-, Ciudad Real, Spain
| | - Carlos Alonso-Moreno
- Departamento de Química Inorgánica, Orgánica y Bioquímica, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, 13071-, Ciudad Real, Spain
| | - Antonio Rodríguez-Diéguez
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avda. de Fuentenueva s/n, 18071-, Granada, Spain
| | - Michael North
- Green Chemistry Centre of Excellence, Department of Chemistry, The University of York, York, YO10 5DD, UK
| | - Antonio Otero
- Departamento de Química Inorgánica, Orgánica y Bioquímica, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, 13071-, Ciudad Real, Spain
| | - Agustín Lara-Sánchez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario, 13071-, Ciudad Real, Spain
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24
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Lanthanide alkoxide complexes stabilized by a novel salen-type Schiff-base ligand: Synthesis, structure, and catalysis for the polymerization of lactide. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.06.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Castro-Osma JA, Earlam A, Lara-Sánchez A, Otero A, North M. Synthesis of Oxazolidinones from Epoxides and Isocyanates Catalysed by Aluminium Heteroscorpionate Complexes. ChemCatChem 2016. [DOI: 10.1002/cctc.201600407] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- José A. Castro-Osma
- Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Castilla-La Mancha, Instituto Regional de Investigación Científica Aplicada-IRICA; 13071- Ciudad Real Spain
| | - Amy Earlam
- Green Chemistry Centre of Excellence, Department of Chemistry; The University of York; Heslington York YO10 5DD UK
| | - Agustín Lara-Sánchez
- Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Castilla-La Mancha, Facultad de Ciencias y Tecnologías Químicas; 13071- Ciudad Real Spain
| | - Antonio Otero
- Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Castilla-La Mancha, Facultad de Ciencias y Tecnologías Químicas; 13071- Ciudad Real Spain
| | - Michael North
- Green Chemistry Centre of Excellence, Department of Chemistry; The University of York; Heslington York YO10 5DD UK
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Castro-Osma JA, Lara-Sanchez A, Otero A, Rodríguez AM, de la Torre MC, Sierra MA. An Efficient and Tunable Route to Bis(1,2,3-triazol-1-yl)methane-Based Nitrogen Compounds. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501519] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Martínez J, Castro-Osma JA, Lara-Sánchez A, Otero A, Fernández-Baeza J, Tejeda J, Sánchez-Barba LF, Rodríguez-Diéguez A. Ring-opening copolymerisation of cyclohexene oxide and carbon dioxide catalysed by scorpionate zinc complexes. Polym Chem 2016. [DOI: 10.1039/c6py01559j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New bimetallic heteroscorpionate zinc complexes have been developed and used as efficient catalysts for the synthesis of poly(cyclohexene carbonate).
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Affiliation(s)
- Javier Martínez
- Universidad de Castilla-La Mancha
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA
- 13071-Ciudad Real
| | - José A. Castro-Osma
- Universidad de Castilla-La Mancha
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA
- 13071-Ciudad Real
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA
- 13071-Ciudad Real
| | - Antonio Otero
- Universidad de Castilla-La Mancha
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA
- 13071-Ciudad Real
| | - Juan Fernández-Baeza
- Universidad de Castilla-La Mancha
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA
- 13071-Ciudad Real
| | - Juan Tejeda
- Universidad de Castilla-La Mancha
- Departamento de Química Inorgánica
- Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Facultad de Ciencias y Tecnologías Químicas and Instituto Regional de Investigación Científica Aplicada-IRICA
- 13071-Ciudad Real
| | - Luis F. Sánchez-Barba
- Departamento de Biología y Geología
- Física y Química Inorgánica
- Universidad Rey Juan Carlos
- Móstoles
- Spain
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28
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Huang YT, Wang WC, Hsu CP, Lu WY, Chuang WJ, Chiang MY, Lai YC, Chen HY. The ring-opening polymerization of ε-caprolactone and l-lactide using aluminum complexes bearing benzothiazole ligands as catalysts. Polym Chem 2016. [DOI: 10.1039/c6py00569a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of aluminum complexes bearing benzothiazole ligands was synthesized and the ring-opening polymerization of ε-caprolactone (CL) and l-lactide (LA) using these aluminum complexes as catalysts was studied.
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Affiliation(s)
- Yen-Tzu Huang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wei-Chu Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Chun-Pin Hsu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Wan-Jung Chuang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
- Department of Chemistry
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
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29
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Chang MC, Lu WY, Chang HY, Lai YC, Chiang MY, Chen HY, Chen HY. Comparative Study of Aluminum Complexes Bearing N,O- and N,S-Schiff Base in Ring-Opening Polymerization of ε-Caprolactone and l-Lactide. Inorg Chem 2015; 54:11292-8. [DOI: 10.1021/acs.inorgchem.5b01858] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meng-Chih Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 80424, R.O.C
| | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
| | - Heng-Yi Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 80424, R.O.C
| | - Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C
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30
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Roymuhury SK, Chakraborty D, Ramkumar V. Aluminium complexes bearing N,O-aminophenol ligands as efficient catalysts for the ring opening polymerization of lactide. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.07.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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31
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Chen L, Li W, Yuan D, Zhang Y, Shen Q, Yao Y. Syntheses of Mononuclear and Dinuclear Aluminum Complexes Stabilized by Phenolato Ligands and Their Applications in the Polymerization of ε-Caprolactone: A Comparative Study. Inorg Chem 2015; 54:4699-708. [DOI: 10.1021/acs.inorgchem.5b00022] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Lijuan Chen
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Hengyi Road, Suzhou 215123, People’s Republic of China
| | - Wenyi Li
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Hengyi Road, Suzhou 215123, People’s Republic of China
| | - Dan Yuan
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Hengyi Road, Suzhou 215123, People’s Republic of China
| | - Yong Zhang
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Hengyi Road, Suzhou 215123, People’s Republic of China
| | - Qi Shen
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Hengyi Road, Suzhou 215123, People’s Republic of China
| | - Yingming Yao
- Key
Laboratory of Organic Synthesis of Jiangsu Province and Suzhou Key
Laboratory of Macromolecular Design and Precision Synthesis, College
of Chemistry, Chemical Engineering and Materials Science, Dushu Lake
Campus, Soochow University, Hengyi Road, Suzhou 215123, People’s Republic of China
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
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32
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Chen YH, Chen YJ, Tseng HC, Lian CJ, Tsai HY, Lai YC, Hsu SCN, Chiang MY, Chen HY. Comparing l-lactide and ε-caprolactone polymerization by using aluminum complexes bearing ketiminate ligands: steric, electronic, and chelating effects. RSC Adv 2015. [DOI: 10.1039/c5ra15530d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Herein, the l-lactide polymerization rate of a series of Al complexes bearing ketimine ligands was investigated, and the polymerization characteristics between l-lactide and ε-caprolactone were compared.
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Affiliation(s)
- Yu-Hsieh Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yen-Jen Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsi-Ching Tseng
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Cheng-Jie Lian
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsin-Yi Tsai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Sodio C. N. Hsu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
- Department of Chemistry
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
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