1
|
Garçon M, Phanopoulos A, White AJP, Crimmin MR. Reversible Dihydrogen Activation and Catalytic H/D Exchange with Group 10 Heterometallic Complexes. Angew Chem Int Ed Engl 2023; 62:e202213001. [PMID: 36350647 PMCID: PMC10107683 DOI: 10.1002/anie.202213001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Indexed: 11/10/2022]
Abstract
Reaction of a hexagonal planar palladium complex featuring a [PdMg3 H3 ] core with H2 is reversible and leads to the formation of a new [PdMg2 H4 ] tetrahydride species alongside an equivalent of a magnesium hydride co-product [MgH]. While the reversibility of this process prevented isolation of [PdMg2 H4 ], analogous [PtMg2 H4 ] and [PtZn2 H4 ] complexes could be isolated and characterised through independent syntheses. Computational analysis (DFT, AIM, NCIPlot) of the bonding in a series of heterometallic tetrahydride compounds (Ni-Pt; Mg and Zn) suggests that these complexes are best described as square planar with marginal metal-metal interactions; the strength of which increases slightly as group 10 is descended and increases from Mg to Zn. DFT calculations support a mechanism for H2 activation involving a ligand-assisted oxidative addition to Pd. These findings were exploited to develop a catalytic protocol for H/D exchange into magnesium hydride and zinc hydride bonds.
Collapse
Affiliation(s)
- Martí Garçon
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, London, W12 0BZ, UK
| | - Andreas Phanopoulos
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, London, W12 0BZ, UK
| | - Andrew J P White
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, London, W12 0BZ, UK
| | - Mark R Crimmin
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, 82 Wood Lane, London, W12 0BZ, UK
| |
Collapse
|
2
|
Abhyankar PC, MacMillan SN, Lacy DC. Bench-Stable Dinuclear Mn(I) Catalysts in E-Selective Alkyne Semihydrogenation: A Mechanistic Investigation. Chemistry 2022; 28:e202201766. [PMID: 35695788 PMCID: PMC9509449 DOI: 10.1002/chem.202201766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Indexed: 11/12/2022]
Abstract
Dinuclear manganese hydride complexes of the form [Mn2 (CO)8 (μ-H)(μ-PR2 )] (R=Ph, 1; R=iPr, 2) were used in E-selective alkyne semi-hydrogenation (E-SASH) catalysis. Catalyst speciation studies revealed rich coordination chemistry and the complexes thus formed were isolated and in turn tested as catalysts; the results underscore the importance of dinuclearity in engendering the observed E-selectivity and provide insights into the nature of the active catalyst. The insertion product obtained from treating 2 with (cyclopropylethynyl)benzene contains a cis-alkenyl bridging ligand with the cyclopropyl ring being intact. Treatment of this complex with H2 affords exclusively trans-(2-cyclopropylvinyl)benzene. These results, in addition to other control experiments, indicate a non-radical mechanism for E-SASH, which is highly unusual for Mn-H catalysts. The catalytically active species are virtually inactive towards cis to trans alkene isomerization indicating that the E-selective process is intrinsic and dinuclear complexes play a critical role. A reaction mechanism is proposed accounting for the observed reactivity which is fully consistent with a kinetic analysis of the rate limiting step and is further supported by DFT computations.
Collapse
Affiliation(s)
- Preshit C Abhyankar
- Department of Chemistry, University at Buffalo State University of New York, Buffalo, New York, 14260, USA
| | - Samantha N MacMillan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York, 14853, USA
| | - David C Lacy
- Department of Chemistry, University at Buffalo State University of New York, Buffalo, New York, 14260, USA
| |
Collapse
|
3
|
Esteruelas MA, López AM, Oñate E, Raga E. Metathesis between E-C(sp n ) and H-C(sp 3 ) σ-Bonds (E=Si, Ge; n=2, 3) on an Osmium-Polyhydride. Angew Chem Int Ed Engl 2022; 61:e202204081. [PMID: 35544362 PMCID: PMC9401005 DOI: 10.1002/anie.202204081] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Indexed: 01/12/2023]
Abstract
The silylation of a phosphine of OsH6 (Pi Pr3 )2 is performed via net-metathesis between Si-C(spn ) and H-C(sp3 ) σ-bonds (n=2, 3). Complex OsH6 (Pi Pr3 )2 activates the Si-H bond of Et3 SiH and Ph3 SiH to give OsH5 (SiR3 )(Pi Pr3 )2 , which yield OsH4 {κ1 -P,η2 -SiH-[i Pr2 PCH(Me)CH2 SiR2 H]}(Pi Pr3 ) and R-H (R=Et, Ph), by displacement of a silyl substituent with a methyl group of a phosphine. Such displacement is a first-order process, with activation entropy consistent with a rate determining step occurring via a highly ordered transition state. It displays selectivity, releasing the hydrocarbon resulting from the rupture of the weakest Si-substituent bond, when the silyl ligand bears different substituents. Accordingly, reactions of OsH6 (Pi Pr3 )2 with dimethylphenylsilane, and 1,1,1,3,5,5,5-heptamethyltrisiloxane afford OsH5 (SiR2 R')(Pi Pr3 )2 , which evolve into OsH4 {κ1 -P,η2 -GeH-[i Pr2 PCH(Me)CH2 SiR2 H]}(Pi Pr3 ) (R=Me, OSiMe3 ) and R'-H (R'=Ph, Me). Exchange reaction is extended to Et3 GeH. The latter reacts with OsH6 (Pi Pr3 )2 to give OsH5 (GeEt3 )(Pi Pr3 )2 , which loses ethane to form OsH4 {κ1 -P,η2 -GeH-[i Pr2 PCH(Me)CH2 GeEt2 H]}(Pi Pr3 ).
Collapse
Affiliation(s)
- Miguel A. Esteruelas
- Departamento de Química InorgánicaInstituto de Síntesis Química y Catálisis Homogénea (ISQCH)Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universidad de Zaragoza-CSIC50009ZaragozaSpain
| | - Ana M. López
- Departamento de Química InorgánicaInstituto de Síntesis Química y Catálisis Homogénea (ISQCH)Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universidad de Zaragoza-CSIC50009ZaragozaSpain
| | - Enrique Oñate
- Departamento de Química InorgánicaInstituto de Síntesis Química y Catálisis Homogénea (ISQCH)Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universidad de Zaragoza-CSIC50009ZaragozaSpain
| | - Esther Raga
- Departamento de Química InorgánicaInstituto de Síntesis Química y Catálisis Homogénea (ISQCH)Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universidad de Zaragoza-CSIC50009ZaragozaSpain
| |
Collapse
|
4
|
Jouffroy M, Nguyen T, Cordier M, Blot M, Roisnel T, Gramage‐Doria R. Iridium‐Catalyzed Direct Reductive Amination of Ketones and Secondary Amines: Breaking the Aliphatic Wall. Chemistry 2022; 28:e202201078. [DOI: 10.1002/chem.202201078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Matthieu Jouffroy
- Chemical Process R&D Discovery Process Research Janssen Pharmaceutica N.V. Turnhoutseweg 30 2340 Beerse Belgium
| | - Thi‐Mo Nguyen
- Université de Rennes CNRS, ISCR-UMR6226 Rennes 35000 France
| | - Marie Cordier
- Université de Rennes CNRS, ISCR-UMR6226 Rennes 35000 France
| | - Marielle Blot
- Université de Rennes CNRS, ISCR-UMR6226 Rennes 35000 France
| | | | | |
Collapse
|
5
|
Schiltz P, Casaretto N, Auffrant A, Gosmini C. Cobalt Complexes Supported by Phosphinoquinoline Ligands for the Catalyzed Hydrosilylation of Carbonyl Compounds. Chemistry 2022; 28:e202200437. [DOI: 10.1002/chem.202200437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Indexed: 01/05/2023]
Affiliation(s)
- Pauline Schiltz
- Laboratoire de Chimie Moléculaire (LCM) CNRS Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91120 Palaiseau France
| | - Nicolas Casaretto
- Laboratoire de Chimie Moléculaire (LCM) CNRS Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91120 Palaiseau France
| | - Audrey Auffrant
- Laboratoire de Chimie Moléculaire (LCM) CNRS Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91120 Palaiseau France
| | - Corinne Gosmini
- Laboratoire de Chimie Moléculaire (LCM) CNRS Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay 91120 Palaiseau France
| |
Collapse
|
6
|
Esteruelas MA, López AM, Oñate E, Raga E. Metathesis between E−C(sp
n
) and H−C(sp
3
) σ‐Bonds (E=Si, Ge;
n
=2, 3) on an Osmium‐Polyhydride. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204081] [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]
Affiliation(s)
- Miguel A. Esteruelas
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Zaragoza-CSIC 50009 Zaragoza Spain
| | - Ana M. López
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Zaragoza-CSIC 50009 Zaragoza Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Zaragoza-CSIC 50009 Zaragoza Spain
| | - Esther Raga
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Zaragoza-CSIC 50009 Zaragoza Spain
| |
Collapse
|
7
|
Eisenstein O. From the Felkin‐Anh Rule to the Grignard Reaction: an Almost Circular 50 Year Adventure in the World of Molecular Structures and Reaction Mechanisms with Computational Chemistry**. Isr J Chem 2022. [DOI: 10.1002/ijch.202100138] [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]
Affiliation(s)
- Odile Eisenstein
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, 34095 France Department of Chemistry and Hylleraas Centre for Quantum Molecular Sciences University of Oslo Oslo 0315 Norway
| |
Collapse
|
8
|
Perutz RN, Sabo‐Etienne S, Weller AS. Metathesis by Partner Interchange in σ-Bond Ligands: Expanding Applications of the σ-CAM Mechanism. Angew Chem Int Ed Engl 2022; 61:e202111462. [PMID: 34694734 PMCID: PMC9299125 DOI: 10.1002/anie.202111462] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 12/13/2022]
Abstract
In 2007 two of us defined the σ-Complex Assisted Metathesis mechanism (Perutz and Sabo-Etienne, Angew. Chem. Int. Ed. 2007, 46, 2578-2592), that is, the σ-CAM concept. This new approach to reaction mechanisms brought together metathesis reactions involving the formation of a variety of metal-element bonds through partner-interchange of σ-bond complexes. The key concept that defines a σ-CAM process is a single transition state for metathesis that is connected by two intermediates that are σ-bond complexes while the oxidation state of the metal remains constant in precursor, intermediates and product. This mechanism is appropriate in situations where σ-bond complexes have been isolated or computed as well-defined minima. Unlike several other mechanisms, it does not define the nature of the transition state. In this review, we highlight advances in the characterization and dynamic rearrangements of σ-bond complexes, most notably alkane and zincane complexes, but also different geometries of silane and borane complexes. We set out a selection of catalytic and stoichiometric examples of the σ-CAM mechanism that are supported by strong experimental and/or computational evidence. We then draw on these examples to demonstrate that the scope of the σ-CAM mechanism has expanded to classes of reaction not envisaged in 2007 (additional σ-bond ligands, agostic complexes, sp2 -carbon, surfaces). Finally, we provide a critical comparison to alternative mechanisms for metathesis of metal-element bonds.
Collapse
Affiliation(s)
| | - Sylviane Sabo‐Etienne
- CNRSLCC (Laboratoire de Chimie de Coordination)205 route de Narbonne, BP 44099F-31077Toulouse Cedex 4France
| | | |
Collapse
|
9
|
Perutz RN, Sabo‐Etienne S, Weller AS. Metathesis by Partner Interchange in σ‐Bond Ligands: Expanding Applications of the σ‐CAM Mechanism. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111462] [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]
Affiliation(s)
| | - Sylviane Sabo‐Etienne
- CNRS LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
| | | |
Collapse
|
10
|
Pérez‐Jiménez M, Campos J, Jover J, Álvarez S, Carmona E. Supported σ‐Complexes of Li−C Bonds from Coordination of Monomeric Molecules of LiCH
3
, LiCH
2
CH
3
and LiC
6
H
5
to Mo≣Mo Bonds. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Marina Pérez‐Jiménez
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) Consejo Superior de Investigaciones Científicas (CSIC) University of Sevilla Avda. Américo Vespucio, 49 41092 Sevilla Spain
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) Consejo Superior de Investigaciones Científicas (CSIC) University of Sevilla Avda. Américo Vespucio, 49 41092 Sevilla Spain
| | - Jesús Jover
- Department de Química Inorgànica I Orgànica Secció de Química Inorgànica Institut de Química Teòrica i Computacional Universitat de Barcelona Martí i Franquès 1–11 08028 Barcelona Spain
| | - Santiago Álvarez
- Department de Química Inorgànica I Orgànica Secció de Química Inorgànica Institut de Química Teòrica i Computacional Universitat de Barcelona Martí i Franquès 1–11 08028 Barcelona Spain
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) Consejo Superior de Investigaciones Científicas (CSIC) University of Sevilla Avda. Américo Vespucio, 49 41092 Sevilla Spain
| |
Collapse
|
11
|
Evans KJ, Morton PA, Luz C, Miller C, Raine O, Lynam JM, Mansell SM. Rhodium Indenyl NHC and Fluorenyl-Tethered NHC Half-Sandwich Complexes: Synthesis, Structures and Applications in the Catalytic C-H Borylation of Arenes and Alkanes. Chemistry 2021; 27:17824-17833. [PMID: 34653269 PMCID: PMC9299238 DOI: 10.1002/chem.202102961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Indexed: 01/11/2023]
Abstract
Indenyl (Ind) rhodium N-heterocyclic carbene (NHC) complexes [Rh(η5 -Ind)(NHC)(L)] were synthesised for 1,3-bis(2,6-diisopropylphenyl)-4,5-dihydroimidazol-2-ylidene (SIPr) with L=C2 H4 (1), CO (2 a) and cyclooctene (COE; 3), for 1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene (SIMes) with L=CO (2 b) and COE (4), and 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes) with L=CO (2 c) and COE (5). Reaction of SIPr with [Rh(Cp*)(C2 H4 )2 ] did not give the desired SIPr complex, thus demonstrating the "indenyl effect" in the synthesis of 1. Oxidative addition of HSi(OEt)3 to 3 proceeded under mild conditions to give the Rh silyl hydride complex [Rh(Ind){Si(OEt)3 }(H)(SIPr)] (6) with loss of COE. Tethered-fluorenyl NHC rhodium complexes [Rh{(η5 -C13 H8 )C2 H4 N(C)C2 Hx NR}(L)] (x=4, R=Dipp, L=C2 H4 : 11; L=COE: 12; L=CO: 13; R=Mes, L=COE: 14; L=CO: 15; x=2, R=Me, L=COE: 16; L=CO: 17) were synthesised in low yields (5-31 %) in comparison to good yields for the monodentate complexes (49-79 %). Compounds 3 and 1, which contain labile alkene ligands, were successful catalysts for the catalytic borylation of benzene with B2 pin2 (Bpin=pinacolboronate, 97 and 93 % PhBpin respectively with 5 mol % catalyst, 24 h, 80 °C), with SIPr giving a more active catalyst than SIMes or IMes. Fluorenyl-tethered NHC complexes were much less active as borylation catalysts, and the carbonyl complexes were inactive. The borylation of toluene, biphenyl, anisole and diphenyl ether proceeded to give meta substitutions as the major product, with smaller amounts of para substitution and almost no ortho product. The borylation of octane and decane with B2 pin2 at 120 and 140 °C, respectively, was monitored by 11 B NMR spectroscopy, which showed high conversions into octyl and decylBpin over 4-7 days, thus demonstrating catalysed sp3 C-H borylation with new piano stool rhodium indenyl complexes. Irradiation of the monodentate complexes with 400 or 420 nm light confirmed the ready dissociation of C2 H4 and COE ligands, whereas CO complexes were inert. Evidence for C-H bond activation in the alkyl groups of the NHC ligands was obtained.
Collapse
Affiliation(s)
- Kieren J. Evans
- Institute of Chemical SciencesHeriot-Watt UniversityEdinburghEH14 4ASUK
| | - Paul A. Morton
- Institute of Chemical SciencesHeriot-Watt UniversityEdinburghEH14 4ASUK
| | - Christian Luz
- Institute of Chemical SciencesHeriot-Watt UniversityEdinburghEH14 4ASUK
| | - Callum Miller
- Institute of Chemical SciencesHeriot-Watt UniversityEdinburghEH14 4ASUK
| | - Olivia Raine
- Institute of Chemical SciencesHeriot-Watt UniversityEdinburghEH14 4ASUK
| | - Jason M. Lynam
- Department of ChemistryUniversity of YorkHeslington, YorkYO10 5DDUK
| | | |
Collapse
|
12
|
Pérez-Jiménez M, Campos J, Jover J, Álvarez S, Carmona E. Supported σ-Complexes of Li-C Bonds from Coordination of Monomeric Molecules of LiCH3, LiCH2CH3 and LiC6H5 to MoMo Bonds. Angew Chem Int Ed Engl 2021; 61:e202116009. [PMID: 34913550 PMCID: PMC9303556 DOI: 10.1002/anie.202116009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Indexed: 11/22/2022]
Abstract
LiCH3 and LiCH2CH3 react with the complex [Mo2(H)2(μ‐AdDipp2)2(thf)2] (1⋅thf) with coordination of two molecules of LiCH2R (R=H, CH3) and formation of complexes [Mo2{μ‐HLi(thf)CH2R}2(AdDipp2)2], 5⋅LiCH3 and 5⋅LiCH2CH3, respectively (AdDipp2=HC(NDipp)2; Dipp=2,6‐iPr2C6H3; thf=C4H8O). Due to steric hindrance, only one molecule of LiC6H5 adds to 1⋅thf generating the complex [Mo2(H){μ‐HLi(thf)C6H5}(μ‐AdDipp2)2], (4⋅LiC6H5). Computational studies disclose the existence of five‐center six‐electron bonding within the H−Mo≣Mo−C−Li metallacycles, with a mostly covalent H−Mo≣Mo−C group and predominantly ionic Li−C and Li−H interactions. However, the latter bonds exhibit non‐negligible covalency, as indicated by X‐ray, computational data and the large one‐bond 6,7Li,1H and 6,7Li,13C NMR coupling constants found for the three‐atom H−Li−C chains. By contrast, the phenyl group in 4⋅LiC6H5 coordinates in an η2 fashion to the lithium atom through the ipso and one of the ortho carbon atoms.
Collapse
Affiliation(s)
- Marina Pérez-Jiménez
- University of Seville Faculty of Chemistry: Universidad de Sevilla Facultad de Quimica, Inorganic Chemistry, SPAIN
| | - Jesús Campos
- Centro de Investigaciones Científicas Isla de la Cartuja: Centro de Investigaciones Cientificas Isla de la Cartuja, Instituto de Investigaciones Químicas, SPAIN
| | - Jesús Jover
- Universitat de Barcelona Facultat de Química: Universitat de Barcelona Facultat de Quimica, Inorganic Chemistry, SPAIN
| | - Santiago Álvarez
- Universitat de Barcelona Facultat de Química: Universitat de Barcelona Facultat de Quimica, Inorganic Chemistry, SPAIN
| | - Ernesto Carmona
- University of Sevilla-CSIC, Americo Vespucio, 41092, Sevilla, SPAIN
| |
Collapse
|
13
|
Azpíroz R, Greger I, Oro LA, Passarelli V, Castarlenas R, Pérez‐Torrente JJ. Preparation of Butadienylpyridines by Iridium-NHC-Catalyzed Alkyne Hydroalkenylation and Quinolizine Rearrangement. Chemistry 2021; 27:11868-11878. [PMID: 33998070 PMCID: PMC8453560 DOI: 10.1002/chem.202101414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Indexed: 11/08/2022]
Abstract
Iridium(I) N-heterocyclic carbene complexes of formula Ir(κ2 O,O'-BHetA)(IPr)(η2 -coe) [BHetA=bis-heteroatomic acidato, acetylacetonate or acetate; IPr=1,3-bis(2,6-diisopropylphenyl)imidazolin-2-carbene; coe=cyclooctene] have been prepared by treating Ir(κ2 O,O'-BHetA)(η2 -coe)2 complexes with IPr. These complexes react with 2-vinylpyridine to afford the hydrido-iridium(III)-alkenyl cyclometalated derivatives IrH(κ2 O,O'-BHetA)(κ2 N,C-C7 H6 N)(IPr) through the iridium(I) intermediate Ir(κ2 O,O'-BHetA)(IPr)(η2 -C7 H7 N). The cyclometalated IrH(κ2 O,O'-acac)(κ2 N,C-C7 H6 N)(IPr) complex efficiently catalyzes the hydroalkenylation of aromatic and aliphatic terminal alkynes and enynes with 2-vinylpyridine to afford 2-(4R-butadienyl)pyridines with Z,E configuration as the major reaction products (yield up to 89 %). In addition, unprecedented (Z)-2-butadienyl-5R-pyridine derivatives have been obtained as minor reaction products (yield up to 21 %) from the elusive 1Z,3gem-butadienyl hydroalkenylation products. These compounds undergo a thermal 6π-electrocyclization to afford bicyclic 4H-quinolizine derivatives that, under catalytic reaction conditions, tautomerize to 6H-quinolizine to afford the (Z)-2-(butadienyl)-5R-pyridine by a retro-electrocyclization reaction.
Collapse
Affiliation(s)
- Ramón Azpíroz
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| | - Ingo Greger
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
- CLARIANT, Gendorf Site84508BurgkirchenGermany
| | - Luis A. Oro
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| | - Vincenzo Passarelli
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| | - Ricardo Castarlenas
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| | - Jesús J. Pérez‐Torrente
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| |
Collapse
|
14
|
Ríos P, Fernández‐de‐Córdova FJ, Borge J, Curado N, Lledós A, Conejero S. Ligand Effects in Carbon−Boron Coupling Processes Mediated by σ‐BH Platinum Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Pablo Ríos
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica, CSIC and Universidad de Sevilla Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/Américo Vespucio 49 41092 Sevilla Spain
| | - Francisco José Fernández‐de‐Córdova
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica, CSIC and Universidad de Sevilla Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/Américo Vespucio 49 41092 Sevilla Spain
| | - Javier Borge
- Departamento de Quimica Física y Analítica Centro de Innovación en Química Avanzada (ORFEO-CINQA) Facultad de Química Universidad de Oviedo C/Julián Clavería 8 33006 Oviedo Spain
| | - Natalia Curado
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica, CSIC and Universidad de Sevilla Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/Américo Vespucio 49 41092 Sevilla Spain
| | - Agustí Lledós
- Departament de Química Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universitat Autònoma de Barcelona Edifici Cn 08193 Cerdanyola del Vallés Spain
| | - Salvador Conejero
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica, CSIC and Universidad de Sevilla Centro de Innovación en Química Avanzada (ORFEO-CINQA) C/Américo Vespucio 49 41092 Sevilla Spain
| |
Collapse
|
15
|
Ni S, Hribersek M, Baddigam SK, Ingner FJL, Orthaber A, Gates PJ, Pilarski LT. Mechanochemical Solvent-Free Catalytic C-H Methylation. Angew Chem Int Ed Engl 2021; 60:6660-6666. [PMID: 33031646 PMCID: PMC7986365 DOI: 10.1002/anie.202010202] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Indexed: 12/29/2022]
Abstract
The mechanochemical, solvent-free, highly regioselective, rhodium-catalyzed C-H methylation of (hetero)arenes is reported. The reaction shows excellent functional-group compatibility and is demonstrated to work for the late-stage C-H methylation of biologically active compounds. The method requires no external heating and benefits from considerably shorter reaction times than previous solution-based C-H methylation protocols. Additionally, the mechanochemical approach is shown to enable the efficient synthesis of organometallic complexes that are difficult to generate conventionally.
Collapse
Affiliation(s)
- Shengjun Ni
- Department of Chemistry—BMCUppsala UniversityBox 57675123UppsalaSweden
| | - Matic Hribersek
- Department of Chemistry—BMCUppsala UniversityBox 57675123UppsalaSweden
| | | | | | - Andreas Orthaber
- Department of Chemistry—Ångström LaboratoriesUppsala UniversityBox 52375120UppsalaSweden
| | - Paul J. Gates
- School of ChemistryUniversity of BristolCantock's Close, CliftonBristolBS8 1TSUK
| | | |
Collapse
|
16
|
Prieto U, Azpeitia S, Sebastian ES, Freixa Z, Garralda MA, Huertos MA. Steric Effects in the Catalytic Tandem Isomerization‐Hydrosilylation Reaction. ChemCatChem 2021. [DOI: 10.1002/cctc.202001699] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Unai Prieto
- Department of Applied Chemistry Faculty of Chemistry at San Sebastian University of Basque Country P° Manuel Lardiazábal 3 20018 San Sebastián Spain
| | - Susan Azpeitia
- Department of Applied Chemistry Faculty of Chemistry at San Sebastian University of Basque Country P° Manuel Lardiazábal 3 20018 San Sebastián Spain
| | - Eider San Sebastian
- Department of Applied Chemistry Faculty of Chemistry at San Sebastian University of Basque Country P° Manuel Lardiazábal 3 20018 San Sebastián Spain
| | - Zoraida Freixa
- Department of Applied Chemistry Faculty of Chemistry at San Sebastian University of Basque Country P° Manuel Lardiazábal 3 20018 San Sebastián Spain
- IKERBASQUE Basque Foundation of Science Bilbao Spain
| | - María A. Garralda
- Department of Applied Chemistry Faculty of Chemistry at San Sebastian University of Basque Country P° Manuel Lardiazábal 3 20018 San Sebastián Spain
| | - Miguel A. Huertos
- Department of Applied Chemistry Faculty of Chemistry at San Sebastian University of Basque Country P° Manuel Lardiazábal 3 20018 San Sebastián Spain
- IKERBASQUE Basque Foundation of Science Bilbao Spain
| |
Collapse
|
17
|
Ni S, Hribersek M, Baddigam SK, Ingner FJL, Orthaber A, Gates PJ, Pilarski LT. Mechanochemical Solvent‐Free Catalytic C−H Methylation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010202] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Shengjun Ni
- Department of Chemistry—BMC Uppsala University Box 576 75123 Uppsala Sweden
| | - Matic Hribersek
- Department of Chemistry—BMC Uppsala University Box 576 75123 Uppsala Sweden
| | - Swarna K. Baddigam
- Department of Chemistry—BMC Uppsala University Box 576 75123 Uppsala Sweden
| | | | - Andreas Orthaber
- Department of Chemistry—Ångström Laboratories Uppsala University Box 523 75120 Uppsala Sweden
| | - Paul J. Gates
- School of Chemistry University of Bristol Cantock's Close, Clifton Bristol BS8 1TS UK
| | - Lukasz T. Pilarski
- Department of Chemistry—BMC Uppsala University Box 576 75123 Uppsala Sweden
| |
Collapse
|
18
|
Joseph B, Gomosta S, Prakash R, Roisnel T, Phukan AK, Ghosh S. Chalcogen Stabilized bis‐Hydridoborate Complexes of Cobalt: Analogues of Tetracyclo[4.3.0.0
2,4
.0
3,5
]nonane. Chemistry 2020; 26:16824-16832. [DOI: 10.1002/chem.202003152] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Benson Joseph
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 India
| | - Suman Gomosta
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 India
| | - Rini Prakash
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 India
| | - Thierry Roisnel
- Institut des Sciences Chimiques de Rennes Université de Rennes, CNRS UMR 6226 35000 Rennes France
| | - Ashwini K. Phukan
- Department of Chemical Sciences Tezpur University Napaam 784028 Assam India
| | - Sundargopal Ghosh
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 India
| |
Collapse
|
19
|
Yanagisawa C, Yamazoe S, Sunada Y. Silylene‐Bridged Tetranuclear Palladium Cluster as a Catalyst for Hydrogenation of Alkenes and Alkynes. ChemCatChem 2020. [DOI: 10.1002/cctc.202001387] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Chikako Yanagisawa
- Department of Applied Chemistry School of Engineering The University of Tokyo 4-6-1 Meguro-ku Komaba, Tokyo Japan
| | - Seiji Yamazoe
- Department of Chemistry Graduate School of Science Tokyo Metropolitan University 1-1 Minami-Osawa Hachioji-shi, Tokyo 192-0397 Japan
| | - Yusuke Sunada
- Department of Applied Chemistry School of Engineering The University of Tokyo 4-6-1 Meguro-ku Komaba, Tokyo Japan
- Institute of Industrial Science The University of Tokyo 4-6-1 Meguro-ku Komaba, Tokyo Japan
| |
Collapse
|
20
|
Kassymbek A, Vyboishchikov SF, Gabidullin BM, Spasyuk D, Pilkington M, Nikonov GI. Sequential Oxidation and C-H Bond Activation at a Gallium(I) Center. Angew Chem Int Ed Engl 2019; 58:18102-18107. [PMID: 31643119 DOI: 10.1002/anie.201913028] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Indexed: 11/10/2022]
Abstract
In situ oxidation of the GaI compound NacNacGa by either N2 O or pyridine oxide results in the generation of a labile monomeric oxide, NacNacGa(O), which can easily cleave the C-H bonds of aliphatic and aromatic substrates featuring good donor sites. The products of this reaction are gallium organyl hydroxides. DFT calculations show that these reactions start with the formation of NacNac-Ga(O)(L) adducts, the oxo ligand of which can easily abstract protons from nearby C-H bonds, even for sp2 -hybridized carbon centers. Aliphatic amines do not enter this reaction for kinetic reasons, presumably because of the unfavorable sterics.
Collapse
Affiliation(s)
- Aishabibi Kassymbek
- Chemistry Department, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, L2S 3A1, Canada
| | - Sergei F Vyboishchikov
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Carrer Maria Aurèlia Capmany 69, 17003, Girona, Spain.,Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklay Street, 117198, Moscow, Russia
| | - Bulat M Gabidullin
- X-Ray Core Facility, Faculty of Science, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario, K1N 6N5, Canada
| | - Denis Spasyuk
- Canadian Light Source Inc., 44 Innovation Blvd., Saskatoon, Saskatchewan, S7N 2V, Canada
| | - Melanie Pilkington
- Chemistry Department, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, L2S 3A1, Canada
| | - Georgii I Nikonov
- Chemistry Department, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, L2S 3A1, Canada
| |
Collapse
|
21
|
Kassymbek A, Vyboishchikov SF, Gabidullin BM, Spasyuk D, Pilkington M, Nikonov GI. Sequential Oxidation and C−H Bond Activation at a Gallium(I) Center. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Aishabibi Kassymbek
- Chemistry DepartmentBrock University 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
| | - Sergei F. Vyboishchikov
- Institut de Química Computacional i Catàlisi and Departament de QuímicaUniversitat de Girona Carrer Maria Aurèlia Capmany 69 17003 Girona Spain
- Peoples' Friendship University of Russia (RUDN University) 6 Miklukho-Maklay Street 117198 Moscow Russia
| | - Bulat M. Gabidullin
- X-Ray Core FacilityFaculty of ScienceUniversity of Ottawa 150 Louis Pasteur Ottawa Ontario K1N 6N5 Canada
| | - Denis Spasyuk
- Canadian Light Source Inc. 44 Innovation Blvd. Saskatoon Saskatchewan S7N 2V Canada
| | - Melanie Pilkington
- Chemistry DepartmentBrock University 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
| | - Georgii I. Nikonov
- Chemistry DepartmentBrock University 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
| |
Collapse
|
22
|
Thongpaen J, Manguin R, Dorcet V, Vives T, Duhayon C, Mauduit M, Baslé O. Visible Light Induced Rhodium(I)‐Catalyzed C−H Borylation. Angew Chem Int Ed Engl 2019; 58:15244-15248. [DOI: 10.1002/anie.201905924] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/12/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Jompol Thongpaen
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
- LCC-CNRSUniversité de Toulouse, CNRS Toulouse France
| | - Romane Manguin
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | | | - Thomas Vives
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | | | - Marc Mauduit
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | - Olivier Baslé
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
- LCC-CNRSUniversité de Toulouse, CNRS Toulouse France
| |
Collapse
|
23
|
Thongpaen J, Manguin R, Dorcet V, Vives T, Duhayon C, Mauduit M, Baslé O. Visible Light Induced Rhodium(I)‐Catalyzed C−H Borylation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905924] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jompol Thongpaen
- Univ Rennes Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
- LCC-CNRS Université de Toulouse, CNRS Toulouse France
| | - Romane Manguin
- Univ Rennes Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | | | - Thomas Vives
- Univ Rennes Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | | | - Marc Mauduit
- Univ Rennes Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | - Olivier Baslé
- Univ Rennes Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
- LCC-CNRS Université de Toulouse, CNRS Toulouse France
| |
Collapse
|
24
|
Ríos P, Fouilloux H, Díez J, Vidossich P, Lledós A, Conejero S. σ-Silane Platinum(II) Complexes as Intermediates in C-Si Bond-Coupling Processes. Chemistry 2019; 25:11346-11355. [PMID: 31246316 DOI: 10.1002/chem.201902226] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/26/2019] [Indexed: 12/15/2022]
Abstract
Platinum complexes [Pt(NHC')(NHC)][BArF ] (in which NHC' denotes a cyclometalated N-heterocyclic carbene ligand, NHC) react with primary silanes RSiH3 to afford the cyclometalated platinum(II) silyl complexes [Pt(NHC-SiHR')(NHC)][BArF ] through a process that involves the formation of C-Si and Pt-Si bonds with concomitant extrusion of H2 . Low-temperature NMR studies indicate that the process proceeds through initial formation of the σ-SiH complexes [Pt(NHC')(NHC)(HSiH2 R)][BArF ], which are stable at temperatures below -10 °C. At higher temperatures, activation of one Si-H bond followed by a C-Si coupling reaction generates an agostic SiH platinum hydride derivative [Pt(H)(NHC'-SiH2 R)(NHC)][BArF ], which undergoes a second Si-H bond activation to afford the final products. Computational modeling of the reaction mechanism indicates that the stereochemistry of the silyl/hydride ligands after the first Si-H bond cleavage dictates the nature of the products, favoring the formation of a C-Si bond over a C-H bond, in contrast to previous results obtained for tertiary silanes. Furthermore, the process involves a trans-to-cis isomerization of the NHC ligand before the second Si-H bond cleavage.
Collapse
Affiliation(s)
- Pablo Ríos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química, Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC and Universidad de Sevilla, C/ Américo Vespucio 49, 41092, Sevilla, Spain
| | - Hugo Fouilloux
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química, Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC and Universidad de Sevilla, C/ Américo Vespucio 49, 41092, Sevilla, Spain
| | - Josefina Díez
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad asociada al CSIC), Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/ Julián Clavería 8, 33008, Oviedo, Spain
| | - Pietro Vidossich
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO-CINCA), Universitat Autònoma de Barcelona, Campus UAB, 08193, Cerdanyola del Vallès, Spain.,COBO Computational Bio-Organic Chemistry Bogotá, Department of Chemistry, Universidad de los Andes, Carrera 1 #18A-12, 111711, Bogotá, Colombia
| | - Agustí Lledós
- Departament de Química, Centro de Innovación en Química Avanzada (ORFEO-CINCA), Universitat Autònoma de Barcelona, Campus UAB, 08193, Cerdanyola del Vallès, Spain
| | - Salvador Conejero
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química, Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC and Universidad de Sevilla, C/ Américo Vespucio 49, 41092, Sevilla, Spain
| |
Collapse
|
25
|
Binh DH, Hamdaoui M, Fischer-Krauser D, Karmazin L, Bailly C, Djukic JP. Entrapment of THF-Stabilized Iridacyclic Ir III Silylenes from Double H-Si Bond Activation and H 2 Elimination. Chemistry 2018; 24:17577-17589. [PMID: 30222217 DOI: 10.1002/chem.201804048] [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: 08/07/2018] [Indexed: 01/08/2023]
Abstract
The reaction of H3 SiR (R=Ph, nBu) with cationic η5 -C5 Me5 - (Cp*) and benzo[h]quinolinyl-based iridacycle [1 b]+ gives rise to new [(IrH)→SiRH2 ]+ adducts. In the presence of THF these adducts readily undergo elimination of H2 gas at subambient temperature to form THF-stabilized metallacyclic IrIII silylene complexes, which were characterized in situ by NMR spectroscopy, trapped in minute amounts by reactive crystallization, and structurally characterized by XRD. Theoretical investigations (static DFT-D reaction-energy profiling, ETS-NOCV) support the promoting role of THF in the H2 elimination step and the consolidation of the Ir-to-Si interaction in the spontaneous (ΔG<0) formation of Ir silylenes in the presence of THF. Mechanistic insights indicate that the Ir silylene species arising from the [1 b]+ /phenylsilane system are relevant catalytic species in the hydrodefluorination of fluoroalkanes.
Collapse
Affiliation(s)
- Dang Ho Binh
- Institut de Chimie de Strasbourg UMR 7177, CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Mustapha Hamdaoui
- Institut de Chimie de Strasbourg UMR 7177, CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Diane Fischer-Krauser
- Institut de Chimie de Strasbourg UMR 7177, CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Lydia Karmazin
- Institut de Chimie de Strasbourg UMR 7177, CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Corinne Bailly
- Institut de Chimie de Strasbourg UMR 7177, CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67000, Strasbourg, France
| | - Jean-Pierre Djukic
- Institut de Chimie de Strasbourg UMR 7177, CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67000, Strasbourg, France
| |
Collapse
|
26
|
Voronova ED, Golub IE, Pavlov AA, Belkova NV, Filippov OA, Epstein LM, Shubina ES. Comprehensive Insight into the Hydrogen Bonding of Silanes. Chem Asian J 2018; 13:3084-3089. [DOI: 10.1002/asia.201801156] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Evgenia D. Voronova
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova St Moscow Russia
| | - Igor E. Golub
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova St Moscow Russia
- People's Friendship University of Russia; 6 Miklukho-Maklay St Moscow Russia
| | - Alexander A. Pavlov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova St Moscow Russia
| | - Natalia V. Belkova
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova St Moscow Russia
| | - Oleg A. Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova St Moscow Russia
| | - Lina M. Epstein
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova St Moscow Russia
| | - Elena S. Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; 28 Vavilova St Moscow Russia
| |
Collapse
|
27
|
Buñuel E, Cárdenas DJ. Towards Useful Boronates through Atom-Economical Catalyzed Cascade Reactions. Chemistry 2018; 24:11239-11244. [DOI: 10.1002/chem.201800659] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Indexed: 01/14/2023]
Affiliation(s)
- Elena Buñuel
- Departamento de Química Orgánica, Facultad de Ciencias; Universidad Autónoma de Madrid, Institute for Advanced Research in Chemical Sciences (IAdChem); Av. Francisco Tomás y Valiente 7 Cantoblanco 28049 Madrid Spain
| | - Diego J. Cárdenas
- Departamento de Química Orgánica, Facultad de Ciencias; Universidad Autónoma de Madrid, Institute for Advanced Research in Chemical Sciences (IAdChem); Av. Francisco Tomás y Valiente 7 Cantoblanco 28049 Madrid Spain
| |
Collapse
|
28
|
Colebatch AL, Hawkey Gilder BW, Whittell GR, Oldroyd NL, Manners I, Weller AS. A General, Rhodium-Catalyzed, Synthesis of Deuterated Boranes andN-Methyl Polyaminoboranes. Chemistry 2018; 24:5450-5455. [DOI: 10.1002/chem.201800737] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Annie L. Colebatch
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - Benjamin W. Hawkey Gilder
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| | - George R. Whittell
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Nicola L. Oldroyd
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Ian Manners
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Andrew S. Weller
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA UK
| |
Collapse
|
29
|
Riddlestone IM, Rajabi NA, Macgregor SA, Mahon MF, Whittlesey MK. Well-Defined Heterobimetallic Reactivity at Unsupported Ruthenium-Indium Bonds. Chemistry 2018; 24:1732-1738. [PMID: 29240969 DOI: 10.1002/chem.201705796] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Indexed: 11/06/2022]
Abstract
The hydride complex [Ru(IPr)2 (CO)H][BArF4 ], 1, reacts with InMe3 with loss of CH4 to form [Ru(IPr)2 (CO)(InMe)(Me)][BArF4 ], 4, featuring an unsupported Ru-In bond with unsaturated Ru and In centres. 4 reacts with H2 to give [Ru(IPr)2 (CO)(η2 -H2 )(InMe)(H)][BArF4 ], 5, while CO induces formation of the indyl complex [Ru(IPr)2 (CO)3 (InMe2 )][BArF4 ], 7. These observations highlight the ability of Me to shuttle between Ru and In centres and are supported by DFT calculations on the mechanism of formation of 4 and its reactions with H2 and CO. An analysis of Ru-In bonding in these species is also presented. Reaction of 1 with GaMe3 also involves CH4 loss but, in contrast to its In congener, sees IPr transfer from Ru to Ga to give a gallyl complex featuring an η6 interaction of one aryl substituent with Ru.
Collapse
Affiliation(s)
- Ian M Riddlestone
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Nasir A Rajabi
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom
| | - Stuart A Macgregor
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom
| | - Mary F Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Michael K Whittlesey
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| |
Collapse
|
30
|
Gensch T, James MJ, Dalton T, Glorius F. Increasing Catalyst Efficiency in C−H Activation Catalysis. Angew Chem Int Ed Engl 2018; 57:2296-2306. [DOI: 10.1002/anie.201710377] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Tobias Gensch
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| | - Michael J. James
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| | - Toryn Dalton
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| |
Collapse
|
31
|
Gensch T, James MJ, Dalton T, Glorius F. Steigerung der Katalysatoreffizienz in der C-H-Aktivierungskatalyse. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201710377] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tobias Gensch
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Michael J. James
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Toryn Dalton
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| |
Collapse
|
32
|
Vondung L, Sattler LE, Langer R. Ambireactive (R3
P)2
BH2
Groups Facilitating Temperature-Switchable Bond Activation by an Iron Complex. Chemistry 2017; 24:1358-1364. [DOI: 10.1002/chem.201704018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Lisa Vondung
- Department of Chemistry; Philipps-Universität Marburg; Hans-Meerwein-Str. 4 35032 Marburg Germany
| | - Lars E. Sattler
- Department of Chemistry; Philipps-Universität Marburg; Hans-Meerwein-Str. 4 35032 Marburg Germany
| | - Robert Langer
- Department of Chemistry; Philipps-Universität Marburg; Hans-Meerwein-Str. 4 35032 Marburg Germany
| |
Collapse
|
33
|
Binh DH, Milovanović M, Puertes-Mico J, Hamdaoui M, Zarić SD, Djukic JP. Is the R3Si Moiety in Metal-Silyl Complexes a Z ligand? An Answer from the Interaction Energy. Chemistry 2017; 23:17058-17069. [DOI: 10.1002/chem.201703373] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Dang Ho Binh
- Institut de Chimie de Strasbourg UMR7177; Université de Strasbourg; 4, rue Blaise Pascal 67000 Strasbourg France
| | - Milan Milovanović
- Institut de Chimie de Strasbourg UMR7177; Université de Strasbourg; 4, rue Blaise Pascal 67000 Strasbourg France
- Department of Chemistry; University of Belgrade; Studentski trg 12-16 11000 Belgrade Serbia
| | - Julia Puertes-Mico
- Institut de Chimie de Strasbourg UMR7177; Université de Strasbourg; 4, rue Blaise Pascal 67000 Strasbourg France
| | - Mustapha Hamdaoui
- Institut de Chimie de Strasbourg UMR7177; Université de Strasbourg; 4, rue Blaise Pascal 67000 Strasbourg France
| | - Snežana D. Zarić
- Department of Chemistry; University of Belgrade; Studentski trg 12-16 11000 Belgrade Serbia
- Department of Chemistry; Texas A&M University at Qatar, Education City, PO Box 23874; Doha Qatar
| | - Jean-Pierre Djukic
- Institut de Chimie de Strasbourg UMR7177; Université de Strasbourg; 4, rue Blaise Pascal 67000 Strasbourg France
| |
Collapse
|
34
|
Caise A, Abdalla JAB, Tirfoin R, Edwards AJ, Aldridge S. A Gallium Hydride as an Oxidizing Agent: Direct Synthesis of IrVComplexes via Ga−H Bond Activation. Chemistry 2017; 23:16906-16913. [DOI: 10.1002/chem.201704372] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Alexa Caise
- Department of Chemistry; University of Oxford; Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK)
| | - Joseph A. B. Abdalla
- Department of Chemistry; University of Oxford; Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK)
| | - Rémi Tirfoin
- Department of Chemistry; University of Oxford; Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK)
| | - Alison J. Edwards
- Australian Centre for Neutron Scattering; Australian Nuclear Science and Technology Organisation; New Illawarra Road Lucas Heights NSW 2234 Australia
| | - Simon Aldridge
- Department of Chemistry; University of Oxford; Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK)
| |
Collapse
|
35
|
Ventura-Espinosa D, Carretero-Cerdán A, Baya M, García H, Mata JA. Catalytic Dehydrogenative Coupling of Hydrosilanes with Alcohols for the Production of Hydrogen On-demand: Application of a Silane/Alcohol Pair as a Liquid Organic Hydrogen Carrier. Chemistry 2017; 23:10815-10821. [DOI: 10.1002/chem.201700243] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Indexed: 11/09/2022]
Affiliation(s)
- David Ventura-Espinosa
- Institute of Advanced Materials (INAM); Universitat Jaume I; Avda. Sos Baynat s/n 12006 Castellón Spain
| | - Alba Carretero-Cerdán
- Institute of Advanced Materials (INAM); Universitat Jaume I; Avda. Sos Baynat s/n 12006 Castellón Spain
| | - Miguel Baya
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); Departamento de Química Inorgánica; CSIC-Universidad de Zaragoza; C. Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Hermenegildo García
- Instituto de Tecnología Química (ITQ); Universidad Politécnica de Valencia; Avda. Los Naranjos s/n 46022 Valencia Spain
| | - Jose A. Mata
- Institute of Advanced Materials (INAM); Universitat Jaume I; Avda. Sos Baynat s/n 12006 Castellón Spain
| |
Collapse
|
36
|
Murai M, Okada R, Asako S, Takai K. Rhodium-Catalyzed Silylative and Germylative Cyclization with Dehydrogenation Leading to 9-Sila- and 9-Germafluorenes: A Combined Experimental and Computational Mechanistic Study. Chemistry 2017; 23:10861-10870. [DOI: 10.1002/chem.201701579] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Ryo Okada
- Division of Applied Chemistry; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Sobi Asako
- Division of Applied Chemistry; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| |
Collapse
|
37
|
Chen S, Han X, Wu J, Li Q, Chen Y, Wang H. Manganese(I)‐Catalyzed Regio‐ and Stereoselective 1,2‐Diheteroarylation of Allenes: Combination of C−H Activation and Smiles Rearrangement. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704952] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shi‐Yong Chen
- School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Xiang‐Lei Han
- School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Jia‐Qiang Wu
- School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Qingjiang Li
- School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
- State Key Laboratory of Natural and Biomimetic DrugsPeking University Beijing 100191 China
| | - Yunyun Chen
- School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Honggen Wang
- School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| |
Collapse
|
38
|
Chen SY, Han XL, Wu JQ, Li Q, Chen Y, Wang H. Manganese(I)-Catalyzed Regio- and Stereoselective 1,2-Diheteroarylation of Allenes: Combination of C-H Activation and Smiles Rearrangement. Angew Chem Int Ed Engl 2017. [PMID: 28631868 DOI: 10.1002/anie.201704952] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Heteroarenes are important structural motif in functional molecules. A MnI -catalyzed 1,2-diheteroarylation of allenes via a C-H activation/Smiles rearrangement cascade is presented. The reaction occurred under additive-free or even solvent-free conditions, which allowed the creation of two C-C and one C-N bonds in a single operation. A series of structurally diverse bicyclic or tricyclic compounds bearing an exocyclic double bond were constructed in good to excellent efficiency. The decarboxylative ring-opening of the products led to the facile synthesis of vicinal biheteroaryls. Synthetic applications were demonstrated and preliminary mechanistic studies were conducted.
Collapse
Affiliation(s)
- Shi-Yong Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xiang-Lei Han
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jia-Qiang Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qingjiang Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
| | - Yunyun Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Honggen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| |
Collapse
|
39
|
Chen SY, Li Q, Liu XG, Wu JQ, Zhang SS, Wang H. Polycyclization Enabled by Relay Catalysis: One-Pot Manganese-Catalyzed C-H Allylation and Silver-Catalyzed Povarov Reaction. CHEMSUSCHEM 2017; 10:2360-2364. [PMID: 28471522 DOI: 10.1002/cssc.201700452] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Indexed: 06/07/2023]
Abstract
In this study, a MnI /AgI -based relay catalysis process is described for the one-pot synthesis of polycyclic products by a formal [3+2] and [4+2] cycloaddition reaction cascade. A manganese(I) complex catalyzed the first example of directed C-H allylation with allenes, setting the stage for an in situ Povarov cyclization catalyzed by silver(I). The reaction proceeds with high bond-forming efficiency (three C-C bonds), broad substrate scope, high regio- and stereoselectivity, and 100 % atom economy.
Collapse
Affiliation(s)
- Shi-Yong Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Qingjiang Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, P. R. China
| | - Xu-Ge Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Jia-Qiang Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Shang-Shi Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Honggen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| |
Collapse
|
40
|
Ekkert O, White AJP, Crimmin MR. Stereoisomerism of bis(σ-Zincane) Complexes: Evidence for an Intramolecular Pathway. Chemistry 2017; 23:5682-5686. [PMID: 28334469 DOI: 10.1002/chem.201701207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Indexed: 11/06/2022]
Abstract
The first bis(σ-zincane) complexes, heterotri- metallic species [M(CO)4 (η2 -HZnBDI)2 ], have been prepared (BDI=κ2 -{2,6-(iPr)2 C6 H3 NCMe}2 CH). For M=Cr, a single stereoisomer is observed in solution and the solid-state. For M=Mo and W, cis and trans isomers were found to reversibly interconvert at 297 K. Despite the huge steric demands of the ligand on zinc, the cis isomer was found to be the most thermodynamically stable in all cases. The activation parameters for the isomerisation when M=Mo are ΔH≠ =20.8 kcal mol-1 and ΔS≠ =-12.8 cal K-1 mol-1 . In combination with DFT calculations, the negative activation entropy suggests an intramolecular rotation mechanism for isomerisation.
Collapse
Affiliation(s)
- Olga Ekkert
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Andrew J P White
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Mark R Crimmin
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
| |
Collapse
|
41
|
Kelly CM, Fuller JT, Macaulay CM, McDonald R, Ferguson MJ, Bischof SM, Sydora OL, Ess DH, Stradiotto M, Turculet L. Dehydrogenative B−H/C(sp 3
)−H Benzylic Borylation within the Coordination Sphere of Platinum(II). Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Colin M. Kelly
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
| | - Jack T. Fuller
- Department of Chemistry and Biochemistry; Brigham Young University; Provo UT 84602 USA
| | - Casper M. Macaulay
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
| | - Robert McDonald
- X-ray Crystallography Laboratory; Department of Chemistry University of Alberta; Edmonton Alberta T6G 2G2 Canada
| | - Michael J. Ferguson
- X-ray Crystallography Laboratory; Department of Chemistry University of Alberta; Edmonton Alberta T6G 2G2 Canada
| | - Steven M. Bischof
- Research and Technology; Chevron Phillips Chemical Company LP; 1862 Kingwood Drive Kingwood TX 77339 USA
| | - Orson L. Sydora
- Research and Technology; Chevron Phillips Chemical Company LP; 1862 Kingwood Drive Kingwood TX 77339 USA
| | - Daniel H. Ess
- Department of Chemistry and Biochemistry; Brigham Young University; Provo UT 84602 USA
| | - Mark Stradiotto
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
| | - Laura Turculet
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
| |
Collapse
|
42
|
Kelly CM, Fuller JT, Macaulay CM, McDonald R, Ferguson MJ, Bischof SM, Sydora OL, Ess DH, Stradiotto M, Turculet L. Dehydrogenative B-H/C(sp 3 )-H Benzylic Borylation within the Coordination Sphere of Platinum(II). Angew Chem Int Ed Engl 2017; 56:6312-6316. [PMID: 28370808 DOI: 10.1002/anie.201700857] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Indexed: 01/02/2023]
Abstract
The first examples of stoichiometric dehydrogenative B-H/C(sp3 )-H benzylic borylation reactions, which are of relevance to catalytic methylarene (di)borylation, are reported. These unusual transformations involving a (κ2 -P,N)Pt(η3 -benzyl) complex, and either pinacolborane or catecholborane, proceed cleanly at room temperature. Density functional calculations suggest that borylation occurs via successive σ-bond metathesis steps, whereby a PtII -H intermediate engages in C(sp3 )-H bond activation-induced dehydrogenation.
Collapse
Affiliation(s)
- Colin M Kelly
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Jack T Fuller
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA
| | - Casper M Macaulay
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Robert McDonald
- X-ray Crystallography Laboratory, Department of Chemistry University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Michael J Ferguson
- X-ray Crystallography Laboratory, Department of Chemistry University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Steven M Bischof
- Research and Technology, Chevron Phillips Chemical Company LP, 1862 Kingwood Drive, Kingwood, TX, 77339, USA
| | - Orson L Sydora
- Research and Technology, Chevron Phillips Chemical Company LP, 1862 Kingwood Drive, Kingwood, TX, 77339, USA
| | - Daniel H Ess
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA
| | - Mark Stradiotto
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada
| | - Laura Turculet
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada
| |
Collapse
|
43
|
Liang Q, Osten KM, Song D. Iron-Catalyzed gem
-Specific Dimerization of Terminal Alkynes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700904] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qiuming Liang
- Department of Chemistry; University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Kimberly M. Osten
- Department of Chemistry; University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Datong Song
- Department of Chemistry; University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| |
Collapse
|
44
|
Liang Q, Osten KM, Song D. Iron-Catalyzed gem
-Specific Dimerization of Terminal Alkynes. Angew Chem Int Ed Engl 2017; 56:6317-6320. [DOI: 10.1002/anie.201700904] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Qiuming Liang
- Department of Chemistry; University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Kimberly M. Osten
- Department of Chemistry; University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Datong Song
- Department of Chemistry; University of Toronto; 80 St. George Street Toronto Ontario M5S 3H6 Canada
| |
Collapse
|
45
|
Eguillor B, Esteruelas MA, Lezáun V, Oliván M, Oñate E. Elongated Dihydrogen versus Compressed Dihydride in Osmium Complexes. Chemistry 2017; 23:1526-1530. [PMID: 27991701 DOI: 10.1002/chem.201605843] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Indexed: 11/09/2022]
Abstract
Small modifications on the co-ligands of complexes containing two coordinated hydrogen atoms can determine the elongated dihydrogen versus compressed dihydride nature of these species and therefore their chemical behavior. 2,6-diphenylpyridine favors the formation of the osmium(IV) cation [OsH2 (C6 H4 pyPh)(PiPr3 )2 ]+ , whereas 2-phenoxy-6-phenylpyridine, which contains an oxygen atom between the heterocycle and one of the phenyl groups, stabilizes the osmium(II) elongated dihydrogen species [Os(C6 H4 pyOPh)(η2 -H2 )(PiPr3 )2 ]+ . In contrast to the latter, the former shows a marked tendency to undergo reductive elimination of the heterocycle.
Collapse
Affiliation(s)
- Beatriz Eguillor
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Miguel A Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Virginia Lezáun
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis QuímicayCatálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| |
Collapse
|
46
|
Nitsch J, Wolters LP, Fonseca Guerra C, Bickelhaupt FM, Steffen A. Enhanced π-Back-Donation as a Way to Higher Coordination Numbers in d10[M(NHC)n] Complexes: A DFT Study. Chemistry 2016; 23:614-622. [DOI: 10.1002/chem.201603861] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Jörn Nitsch
- Institut für Anorganische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Lando P. Wolters
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM); Vrije Universiteit Amsterdam; De Boelelaan 1083 1081 HV Amsterdam The Netherlands
| | - Célia Fonseca Guerra
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM); Vrije Universiteit Amsterdam; De Boelelaan 1083 1081 HV Amsterdam The Netherlands
| | - F. Matthias Bickelhaupt
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM); Vrije Universiteit Amsterdam; De Boelelaan 1083 1081 HV Amsterdam The Netherlands
- Institute for Molecules and Materials (IMM); Radboud University; Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Andreas Steffen
- Institut für Anorganische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| |
Collapse
|
47
|
Yahaya NP, Appleby KM, Teh M, Wagner C, Troschke E, Bray JTW, Duckett SB, Hammarback LA, Ward JS, Milani J, Pridmore NE, Whitwood AC, Lynam JM, Fairlamb IJS. Manganese(I)-Catalyzed C-H Activation: The Key Role of a 7-Membered Manganacycle in H-Transfer and Reductive Elimination. Angew Chem Int Ed Engl 2016; 55:12455-9. [PMID: 27603008 PMCID: PMC5113680 DOI: 10.1002/anie.201606236] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Indexed: 01/14/2023]
Abstract
Manganese‐catalyzed C−H bond activation chemistry is emerging as a powerful and complementary method for molecular functionalization. A highly reactive seven‐membered MnI intermediate is detected and characterized that is effective for H‐transfer or reductive elimination to deliver alkenylated or pyridinium products, respectively. The two pathways are determined at MnI by judicious choice of an electron‐deficient 2‐pyrone substrate containing a 2‐pyridyl directing group, which undergoes regioselective C−H bond activation, serving as a valuable system for probing the mechanistic features of Mn C−H bond activation chemistry.
Collapse
Affiliation(s)
- Nasiru P Yahaya
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Kate M Appleby
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Magdalene Teh
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Conrad Wagner
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Erik Troschke
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Joshua T W Bray
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Simon B Duckett
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | | | - Jonathan S Ward
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Jessica Milani
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | | | | | - Jason M Lynam
- Department of Chemistry, University of York, York, YO10 5DD, UK.
| | - Ian J S Fairlamb
- Department of Chemistry, University of York, York, YO10 5DD, UK.
| |
Collapse
|
48
|
Yahaya NP, Appleby KM, Teh M, Wagner C, Troschke E, Bray JTW, Duckett SB, Hammarback LA, Ward JS, Milani J, Pridmore NE, Whitwood AC, Lynam JM, Fairlamb IJS. Manganese(I)-Catalyzed C−H Activation: The Key Role of a 7-Membered Manganacycle in H-Transfer and Reductive Elimination. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606236] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Kate M. Appleby
- Department of Chemistry; University of York; York YO10 5DD UK
| | - Magdalene Teh
- Department of Chemistry; University of York; York YO10 5DD UK
| | - Conrad Wagner
- Department of Chemistry; University of York; York YO10 5DD UK
| | - Erik Troschke
- Department of Chemistry; University of York; York YO10 5DD UK
| | | | | | | | | | - Jessica Milani
- Department of Chemistry; University of York; York YO10 5DD UK
| | | | | | - Jason M. Lynam
- Department of Chemistry; University of York; York YO10 5DD UK
| | | |
Collapse
|
49
|
Engel J, Mersmann S, Norrby PO, Bolm C. Mechanistic Insights into the Iridium-Catalyzed Hydrogenations of α,β-Unsaturated Ketones. ChemCatChem 2016. [DOI: 10.1002/cctc.201600730] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Julien Engel
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Stefanie Mersmann
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Per-Ola Norrby
- Pharmaceutical Technology and Development; AstraZeneca; Pepparedsleden 1 431 83 Mölndal Sweden
- Department of Chemistry and Molecular Biology; University of Gothenburg; Kemigården 4 412 96 Göteborg Sweden
| | - Carsten Bolm
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| |
Collapse
|
50
|
Campos J, López-Serrano J, Peloso R, Carmona E. Methyl Complexes of the Transition Metals. Chemistry 2016; 22:6432-57. [PMID: 26991740 DOI: 10.1002/chem.201504483] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Indexed: 01/11/2023]
Abstract
Organometallic chemistry can be considered as a wide area of knowledge that combines concepts of classic organic chemistry, that is, based essentially on carbon, with molecular inorganic chemistry, especially with coordination compounds. Transition-metal methyl complexes probably represent the simplest and most fundamental way to view how these two major areas of chemistry combine and merge into novel species with intriguing features in terms of reactivity, structure, and bonding. Citing more than 500 bibliographic references, this review aims to offer a concise view of recent advances in the field of transition-metal complexes containing M-CH3 fragments. Taking into account the impressive amount of data that are continuously provided by organometallic chemists in this area, this review is mainly focused on results of the last five years. After a panoramic overview on M-CH3 compounds of Groups 3 to 11, which includes the most recent landmark findings in this area, two further sections are dedicated to methyl-bridged complexes and reactivity.
Collapse
Affiliation(s)
- Jesús Campos
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Joaquín López-Serrano
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Riccardo Peloso
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain.
| |
Collapse
|