51
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Werncke CG, Pfeiffer J, Müller I, Vendier L, Sabo-Etienne S, Bontemps S. C-Halide bond cleavage by a two-coordinate iron(i) complex. Dalton Trans 2019; 48:1757-1765. [DOI: 10.1039/c8dt05002c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The two-coordinate iron(i) complex [FeI(N(SiMe3)2)2]− is highly efficient in the cleavage of C-halide bonds.
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52
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Zanchin G, Bertini F, Vendier L, Ricci G, Lorber C, Leone G. Copolymerization of ethylene with propylene and higher α-olefins catalyzed by (imido)vanadium( iv) dichloride complexes. Polym Chem 2019. [DOI: 10.1039/c9py01415b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have synthesized and characterized a series of (imido)V(iv) complexes bearing different imido groups and coligands, to be used, in combination with an aluminum alkyl, as catalysts for the (co)polymerization of ethylene with propylene.
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53
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Ayabe T, Costes JP, Vendier L, Geist A, Takeda M, Takahashi M. Contribution of 155Gd Mössbauer data to the study of the magnetic interaction in heterodinuclear 3d–Gd (3d = Cu, Ni) coordination complexes. Dalton Trans 2019; 48:6872-6878. [DOI: 10.1039/c9dt01336a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The observed 155Gd Mössbauer isomer shifts of 3d–Gd complexes give an experimental proof for the participation of 5d Gd orbitals to the magnetic interaction in these 3d–Gd complexes.
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54
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Costes JP, Novitchi G, Vieru V, Chibotaru LF, Duhayon C, Vendier L, Majoral JP, Wernsdorfer W. Effects of the Exchange Coupling on Dynamic Properties in a Series of CoGdCo Complexes. Inorg Chem 2018; 58:756-768. [DOI: 10.1021/acs.inorgchem.8b02921] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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55
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Béthegnies A, Escudié Y, Nuñez‐Dallos N, Vendier L, Hurtado J, del Rosal I, Maron L, Bontemps S. Reductive CO2Homocoupling: Synthesis of a Borylated C3Carbohydrate. ChemCatChem 2018. [DOI: 10.1002/cctc.201801875] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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56
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Zanchin G, Vendier L, Pierro I, Bertini F, Ricci G, Lorber C, Leone G. Homo- and Co-Polymerization of Ethylene with Cyclic Olefins Catalyzed by Phosphine Adducts of (Imido)vanadium(IV) Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00502] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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57
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Pedron J, Boudot C, Hutter S, Bourgeade-Delmas S, Stigliani JL, Sournia-Saquet A, Moreau A, Boutet-Robinet E, Paloque L, Mothes E, Laget M, Vendier L, Pratviel G, Wyllie S, Fairlamb A, Azas N, Courtioux B, Valentin A, Verhaeghe P. Novel 8-nitroquinolin-2(1H)-ones as NTR-bioactivated antikinetoplastid molecules: Synthesis, electrochemical and SAR study. Eur J Med Chem 2018; 155:135-152. [PMID: 29885575 DOI: 10.1016/j.ejmech.2018.06.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/31/2018] [Accepted: 06/01/2018] [Indexed: 10/14/2022]
Abstract
To study the antiparasitic 8-nitroquinolin-2(1H)-one pharmacophore, a series of 31 derivatives was synthesized in 1-5 steps and evaluated in vitro against both Leishmania infantum and Trypanosoma brucei brucei. In parallel, the reduction potential of all molecules was measured by cyclic voltammetry. Structure-activity relationships first indicated that antileishmanial activity depends on an intramolecular hydrogen bond (described by X-ray diffraction) between the lactam function and the nitro group, which is responsible for an important shift of the redox potential (+0.3 V in comparison with 8-nitroquinoline). With the assistance of computational chemistry, a set of derivatives presenting a large range of redox potentials (from -1.1 to -0.45 V) was designed and provided a list of suitable molecules to be synthesized and tested. This approach highlighted that, in this series, only substrates with a redox potential above -0.6 V display activity toward L. infantum. Nevertheless, such relation between redox potentials and in vitro antiparasitic activities was not observed in T. b. brucei. Compound 22 is a new hit compound in the series, displaying both antileishmanial and antitrypanosomal activity along with a low cytotoxicity on the human HepG2 cell line. Compound 22 is selectively bioactivated by the type 1 nitroreductases (NTR1) of L. donovani and T. brucei brucei. Moreover, despite being mutagenic in the Ames test, as most of nitroaromatic derivatives, compound 22 was not genotoxic in the comet assay. Preliminary in vitro pharmacokinetic parameters were finally determined and pointed out a good in vitro microsomal stability (half-life > 40 min) and a 92% binding to human albumin.
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58
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Zhang W, Huang D, Huang M, Huang J, Wang D, Liu X, Nguyen M, Vendier L, Mazères S, Robert A, Liu Y, Meunier B. Front Cover: Preparation of Tetradentate Copper Chelators as Potential Anti-Alzheimer Agents (ChemMedChem 7/2018). ChemMedChem 2018. [DOI: 10.1002/cmdc.201800184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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59
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Parker KDJ, Vendier L, Etienne M. Synthesis, Characterization, and Ligand Rearrangement of Tungsten Cyclopropyl Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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60
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Zhang W, Huang D, Huang M, Huang J, Wang D, Liu X, Nguyen M, Vendier L, Mazères S, Robert A, Liu Y, Meunier B. Preparation of Tetradentate Copper Chelators as Potential Anti-Alzheimer Agents. ChemMedChem 2018; 13:684-704. [DOI: 10.1002/cmdc.201700734] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/25/2018] [Indexed: 11/11/2022]
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61
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Dufrois Q, Daran JC, Vendier L, Dinoi C, Etienne M. Triangles and Squares for a Unique Molecular Crystal Structure: Unsupported Two-Coordinate Lithium Cations and CC Agostic Interactions in Cyclopropyllithium Derivatives. Angew Chem Int Ed Engl 2018; 57:1786-1791. [PMID: 29205730 DOI: 10.1002/anie.201711426] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Indexed: 11/10/2022]
Abstract
Understanding and controlling the aggregation state is germane to alkyllithium chemistry. Lewis base-free alkyllithium compounds normally form tetrahedral tetramers or octahedral hexamers in the solid state with the lithium cations being three-coordinate. We report that the unsupported cyclopropyl derivative 1-(trimethylsilyl)cyclopropyllithium [{μ-c-C(SiMe3 )C2 H4 }Li]4 (1), synthesized by the reduction of 1-(phenylthio)-1-(trimethylsilyl)cyclopropane, crystallizes as a tetramer in the space group I-4 with the two-coordinate lithium atoms forming a square. CC agostic interactions complete the coordination sphere around each lithium. The aggregate is preserved in hydrocarbon solution. Furthermore, CC agostic interactions compete intra- and intermolecularly with Lewis base donation as in the unsaturated dimer of 1-(phenylthio)cyclopropyllithium [Li(thf)2 {μ-c-C(SPh)C2 H4 }2 Li (thf)] (3) which is also fully characterized.
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62
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Dufrois Q, Daran JC, Vendier L, Dinoi C, Etienne M. Frontispiece: Triangles and Squares for a Unique Molecular Crystal Structure: Unsupported Two-Coordinate Lithium Cations and CC Agostic Interactions in Cyclopropyllithium Derivatives. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201880761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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63
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Dufrois Q, Daran JC, Vendier L, Dinoi C, Etienne M. Frontispiz: Triangles and Squares for a Unique Molecular Crystal Structure: Unsupported Two-Coordinate Lithium Cations and CC Agostic Interactions in Cyclopropyllithium Derivatives. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201880761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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64
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Beguerie M, Dinoi C, del Rosal I, Faradji C, Alcaraz G, Vendier L, Sabo-Etienne S. Mechanistic Studies on the Catalytic Synthesis of BN Heterocycles (1H-2,1-Benzazaboroles) at Ruthenium. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03461] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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65
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Costes JP, Dahan F, Vendier L, Shova S, Lorusso G, Evangelisti M. NiII–LnIII complexes with o-vanillin as the main ligand: syntheses, structures, magnetic and magnetocaloric properties. Dalton Trans 2018; 47:1106-1116. [PMID: 29265143 DOI: 10.1039/c7dt04293k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
ortho-Vanillin yields three types of heteronuclear NiII–LnIII complexes, ranging from dinuclear to tetranuclear defect dicubane complexes.
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66
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Costes JP, Duhayon C, Vendier L, Mota AJ. Reactions of a series of ZnL, CuL and NiL Schiff base and non-Schiff base complexes with MCl2 salts (M = Cu, Ni, Mn): syntheses, structures, magnetic properties and DFT calculations. NEW J CHEM 2018. [DOI: 10.1039/c7nj04347c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations demonstrate that the weak antiferromagnetic interaction in the highly non-symmetric diphenoxo Cu–Cu bridge results from two antagonistic bridging pathways
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67
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Sroor FM, Vendier L, Etienne M. Cyclooctatetraenyl calcium and strontium amido complexes. Dalton Trans 2018; 47:12587-12595. [DOI: 10.1039/c8dt02257g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The first examples of Ca and Sr amido complexes built on a cyclooctatetraenyl platform are reported.
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68
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Cano I, Martínez-Prieto LM, Vendier L, van Leeuwen PWNM. An iridium–SPO complex as bifunctional catalyst for the highly selective hydrogenation of aldehydes. Catal Sci Technol 2018. [DOI: 10.1039/c7cy01953j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An Ir(iii) hydride catalytic system shows very high activities and selectivities in the chemoselective hydrogenation of various substituted aldehydes.
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69
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Mejai A, Najahi E, Tchani G, Perio P, Vendier L, Bourgeade Delmas S, Abidi R, Haddad M, Nepveu F, Reybier K. Synthesis and Evaluation of Antiplasmodial Activities of Fluorinated 6-Amino- 2-Aryl-3H-Indolone-N-Oxides. Med Chem 2018. [DOI: 10.4172/2161-0444.1000497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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70
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Martin-Mothes E, Puig E, Vendier L, Bijani C, Grellier M, Bontemps S. ortho-Phenyl dialkylphosphonium sulfonate compounds: two rotamers in equilibrium. Dalton Trans 2018; 47:10139-10146. [DOI: 10.1039/c8dt02400f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Two known and two new ortho-phenyl phosphonium–sulfonate compounds have been synthesized and analyzed in solution and in the solid state.
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71
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Dufrois Q, Daran JC, Vendier L, Dinoi C, Etienne M. Triangles and Squares for a Unique Molecular Crystal Structure: Unsupported Two-Coordinate Lithium Cations and CC Agostic Interactions in Cyclopropyllithium Derivatives. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201711426] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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72
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Romero N, Dufrois Q, Vendier L, Dinoi C, Etienne M. Coupling and Dearomatization of Pyridines at a Transient η2
-Cyclopropene/Bicyclobutane Zirconocene Complex. Chemistry 2017; 23:15766-15774. [DOI: 10.1002/chem.201703371] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Indexed: 11/11/2022]
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73
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Simonneau A, Turrel R, Vendier L, Etienne M. Group 6 Transition-Metal/Boron Frustrated Lewis Pair Templates Activate N2
and Allow its Facile Borylation and Silylation. Angew Chem Int Ed Engl 2017; 56:12268-12272. [DOI: 10.1002/anie.201706226] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Indexed: 11/09/2022]
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74
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Simonneau A, Turrel R, Vendier L, Etienne M. Group 6 Transition-Metal/Boron Frustrated Lewis Pair Templates Activate N2
and Allow its Facile Borylation and Silylation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706226] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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75
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Beguerie M, Faradji C, Vendier L, Sabo-Etienne S, Alcaraz G. Ruthenium-Catalyzed Tandem Activation of C≡N and B−H Bonds under Dihydrogen: Synthesis of BN Heterocycles. ChemCatChem 2017. [DOI: 10.1002/cctc.201700682] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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