1
|
Jannsen N, Reiß F, Drexler HJ, Konieczny K, Beweries T, Heller D. The Mechanism of Rh(I)-Catalyzed Coupling of Benzotriazoles and Allenes Revisited: Substrate Inhibition, Proton Shuttling, and the Role of Cationic vs Neutral Species. J Am Chem Soc 2024; 146:12185-12196. [PMID: 38647149 PMCID: PMC11066875 DOI: 10.1021/jacs.4c02679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/10/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024]
Abstract
Direct coupling of benzotriazole to unsaturated substrates such as allenes represents an atom-efficient method for the construction of biologically and pharmaceutically interesting functional structures. In this work, the mechanism of the N2-selective Rh complex-catalyzed coupling of benzotriazoles to allenes was investigated in depth using a combination of experimental and theoretical techniques. Substrate coordination, inhibition, and catalyst deactivation was probed in reactions of the neutral and cationic catalyst precursors [Rh(μ-Cl)(DPEPhos)]2 and [Rh(DPEPhos)(MeOH)2]+ with benzotriazole and allene, giving coordination, or coupling of the substrates. Formation of a rhodacycle, formed by unprecedented 1,2-coupling of allenes, is responsible for catalyst deactivation. Experimental and computational data suggest that cationic species, formed either by abstraction of the chloride ligand or used directly, are relevant for catalysis. Isomerization of benzotriazole and cleavage of its N-H bond are suggested to occur by counteranion-assisted proton shuttling. This contrasts with a previously proposed scenario in which oxidative N-H addition at Rh is one of the key steps. Based on the mechanistic analysis, the catalytic coupling reaction could be optimized, leading to lower reaction temperature and shorter reaction times compared to the literature.
Collapse
Affiliation(s)
- Nora Jannsen
- Leibniz-Institut
für
Katalyse e.V., Albert-Einstein-Str. 29a, Rostock 18059, Germany
| | - Fabian Reiß
- Leibniz-Institut
für
Katalyse e.V., Albert-Einstein-Str. 29a, Rostock 18059, Germany
| | - Hans-Joachim Drexler
- Leibniz-Institut
für
Katalyse e.V., Albert-Einstein-Str. 29a, Rostock 18059, Germany
| | - Katharina Konieczny
- Leibniz-Institut
für
Katalyse e.V., Albert-Einstein-Str. 29a, Rostock 18059, Germany
| | - Torsten Beweries
- Leibniz-Institut
für
Katalyse e.V., Albert-Einstein-Str. 29a, Rostock 18059, Germany
| | - Detlef Heller
- Leibniz-Institut
für
Katalyse e.V., Albert-Einstein-Str. 29a, Rostock 18059, Germany
| |
Collapse
|
2
|
Chapple DE, Hoffer MA, Boyle PD, Blacquiere JM. Alkyne Hydrofunctionalization Mechanism Including an Off-Cycle Alkoxycarbene Deactivation Complex. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Devon E. Chapple
- Department of Chemistry, Western University, 1151 Richmond Street, London, Ontario, Canada N6A 3K7
| | - Megan A. Hoffer
- Department of Chemistry, Western University, 1151 Richmond Street, London, Ontario, Canada N6A 3K7
| | - Paul D. Boyle
- Department of Chemistry, Western University, 1151 Richmond Street, London, Ontario, Canada N6A 3K7
| | - Johanna M. Blacquiere
- Department of Chemistry, Western University, 1151 Richmond Street, London, Ontario, Canada N6A 3K7
| |
Collapse
|
3
|
Corpas J, Arpa EM, Lapierre R, Corral I, Mauleón P, Arrayás RG, Carretero JC. Interplay between the Directing Group and Multifunctional Acetate Ligand in Pd-Catalyzed anti-Acetoxylation of Unsymmetrical Dialkyl-Substituted Alkynes. ACS Catal 2022; 12:6596-6605. [PMID: 35692253 PMCID: PMC9173690 DOI: 10.1021/acscatal.2c00710] [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: 02/09/2022] [Revised: 05/07/2022] [Indexed: 12/31/2022]
Abstract
The cooperative action of the acetate ligand, the 2-pyridyl sulfonyl (SO2Py) directing group on the alkyne substrate, and the palladium catalyst has been shown to be crucial for controlling reactivity, regioselectivity, and stereoselectivity in the acetoxylation of unsymmetrical internal alkynes under mild reaction conditions. The corresponding alkenyl acetates were obtained in good yields with complete levels of β-regioselectivity and anti-acetoxypalladation stereocontrol. Experimental and computational analyses provide insight into the reasons behind this delicate interplay between the ligand, directing group, and the metal in the reaction mechanism. In fact, these studies unveil the multiple important roles of the acetate ligand in the coordination sphere at the Pd center: (i) it brings the acetic acid reagent into close proximity to the metal to allow the simultaneous activation of the alkyne and the acetic acid, (ii) it serves as an inner-sphere base while enhancing the nucleophilicity of the acid, and (iii) it acts as an intramolecular acid to facilitate protodemetalation and regeneration of the catalyst. Further insight into the origin of the observed regiocontrol is provided by the mapping of potential energy profiles and distortion-interaction analysis.
Collapse
Affiliation(s)
- Javier Corpas
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - Enrique M. Arpa
- Division
of Theoretical Chemistry, IFM, Linköping
University, 581 83 Linköping, Sweden
| | - Romain Lapierre
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - Inés Corral
- Departamento
de Química, Facultad de Ciencias,
UAM, Cantoblanco, 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), UAM, 28049 Madrid, Spain
| | - Pablo Mauleón
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), UAM, 28049 Madrid, Spain
| | - Ramón Gómez Arrayás
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), UAM, 28049 Madrid, Spain
| | - Juan C. Carretero
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), UAM, 28049 Madrid, Spain
| |
Collapse
|
4
|
Reek JNH, de Bruin B, Pullen S, Mooibroek TJ, Kluwer AM, Caumes X. Transition Metal Catalysis Controlled by Hydrogen Bonding in the Second Coordination Sphere. Chem Rev 2022; 122:12308-12369. [PMID: 35593647 PMCID: PMC9335700 DOI: 10.1021/acs.chemrev.1c00862] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Transition metal catalysis is of utmost importance for the development of sustainable processes in academia and industry. The activity and selectivity of metal complexes are typically the result of the interplay between ligand and metal properties. As the ligand can be chemically altered, a large research focus has been on ligand development. More recently, it has been recognized that further control over activity and selectivity can be achieved by using the "second coordination sphere", which can be seen as the region beyond the direct coordination sphere of the metal center. Hydrogen bonds appear to be very useful interactions in this context as they typically have sufficient strength and directionality to exert control of the second coordination sphere, yet hydrogen bonds are typically very dynamic, allowing fast turnover. In this review we have highlighted several key features of hydrogen bonding interactions and have summarized the use of hydrogen bonding to program the second coordination sphere. Such control can be achieved by bridging two ligands that are coordinated to a metal center to effectively lead to supramolecular bidentate ligands. In addition, hydrogen bonding can be used to preorganize a substrate that is coordinated to the metal center. Both strategies lead to catalysts with superior properties in a variety of metal catalyzed transformations, including (asymmetric) hydrogenation, hydroformylation, C-H activation, oxidation, radical-type transformations, and photochemical reactions.
Collapse
Affiliation(s)
- Joost N H Reek
- Homogeneous and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.,InCatT B.V., Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Bas de Bruin
- Homogeneous and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Sonja Pullen
- Homogeneous and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Tiddo J Mooibroek
- Homogeneous and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | | | - Xavier Caumes
- InCatT B.V., Science Park 904, 1098 XH Amsterdam, The Netherlands
| |
Collapse
|
5
|
Saha R, Mukherjee A, Bhattacharya S. Development of a ruthenium–aquo complex for utilization in synthesis and catalysis for selective hydration of nitriles and alkynes. NEW J CHEM 2022. [DOI: 10.1039/d1nj04736a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A ruthenium(ii)–aquo complex serves as a precursor for the synthesis of new ternary complexes and also as an efficient catalyst for selective hydration of aryl nitriles to aryl amides and aryl alkynes to aryl aldehydes.
Collapse
Affiliation(s)
- Rumpa Saha
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata – 700 032, India
| | - Aparajita Mukherjee
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata – 700 032, India
| | - Samaresh Bhattacharya
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata – 700 032, India
| |
Collapse
|
6
|
Hydration of alkynes to ketones using cobalt ferrite magnetic nanocatalyst encrusted with gold nanoparticles. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
7
|
Galiana-Cameo M, Urriolabeitia A, Barrenas E, Passarelli V, Pérez-Torrente JJ, Di Giuseppe A, Polo V, Castarlenas R. Metal–Ligand Cooperative Proton Transfer as an Efficient Trigger for Rhodium-NHC-Pyridonato Catalyzed gem-Specific Alkyne Dimerization. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00602] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- María Galiana-Cameo
- Departamento de Química Inorgánica−Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Asier Urriolabeitia
- Departamento de Química Física, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Eduardo Barrenas
- Departamento de Química Inorgánica−Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Vincenzo Passarelli
- Departamento de Química Inorgánica−Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Centro Universitario de la Defensa, Ctra Huesca S/N, 50090 Zaragoza, Spain
| | - Jesús J. Pérez-Torrente
- Departamento de Química Inorgánica−Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Andrea Di Giuseppe
- Departamento de Química Inorgánica−Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Dipartimento di Scienze Fisiche e Chimiche, Università dell’Aquila, via Vetoio, I-67100 Coppito (AQ), Italy
| | - Víctor Polo
- Departamento de Química Física, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Ricardo Castarlenas
- Departamento de Química Inorgánica−Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| |
Collapse
|
8
|
Collinge G, Yuk SF, Nguyen MT, Lee MS, Glezakou VA, Rousseau R. Effect of Collective Dynamics and Anharmonicity on Entropy in Heterogenous Catalysis: Building the Case for Advanced Molecular Simulations. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01501] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Greg Collinge
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Simuck F. Yuk
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Manh-Thuong Nguyen
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Mal-Soon Lee
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Vassiliki-Alexandra Glezakou
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Roger Rousseau
- Basic & Applied Molecular Foundations, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| |
Collapse
|
9
|
Puerta-Oteo R, Munarriz J, Polo V, Jiménez MV, Pérez-Torrente JJ. Carboxylate-Assisted β-(Z) Stereoselective Hydrosilylation of Terminal Alkynes Catalyzed by a Zwitterionic Bis-NHC Rhodium(III) Complex. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01582] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Raquel Puerta-Oteo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Julen Munarriz
- Departamento de Química Física, Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Facultad de Ciencias, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Department of Chemistry & Biochemistry, University of California Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Víctor Polo
- Departamento de Química Física, Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Facultad de Ciencias, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - M. Victoria Jiménez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Jesús J. Pérez-Torrente
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| |
Collapse
|
10
|
Hall MR, Steen RR, Korb M, Sobolev AN, Moggach SA, Lynam JM, Low PJ. Further Evidence for ‘Extended’ Cumulene Complexes: Derivatives from Reactions with Halide Anions and Water. Chemistry 2020; 26:7226-7234. [DOI: 10.1002/chem.201905399] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/01/2020] [Indexed: 12/27/2022]
Affiliation(s)
- Michael R. Hall
- School of Molecular SciencesUniversity of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | - Rachel R. Steen
- Department of ChemistryUniversity of York Heslington York YO10 5DG UK
| | - Marcus Korb
- School of Molecular SciencesUniversity of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | - Alexandre N. Sobolev
- School of Molecular SciencesUniversity of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | - Stephen A. Moggach
- School of Molecular SciencesUniversity of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
- Centre for Microscopy, Characterisation and AnalysisUniversity of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| | - Jason M. Lynam
- Department of ChemistryUniversity of York Heslington York YO10 5DG UK
| | - Paul J. Low
- School of Molecular SciencesUniversity of Western Australia 35 Stirling Highway Crawley WA 6009 Australia
| |
Collapse
|
11
|
Virant M, Mihelač M, Gazvoda M, Cotman AE, Frantar A, Pinter B, Košmrlj J. Pyridine Wingtip in [Pd(Py- tzNHC) 2] 2+ Complex Is a Proton Shuttle in the Catalytic Hydroamination of Alkynes. Org Lett 2020; 22:2157-2161. [PMID: 31999464 PMCID: PMC7308070 DOI: 10.1021/acs.orglett.0c00203] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The cationic palladium(II)
complex 1 of pyridyl-mesoionic
carbene ligand catalyzes Markovnikov-selective intermolecular hydroamination
between anilines and terminal alkynes into the corresponding imines.
The reaction proceeds at room temperature, in the absence of additives,
with exquisite selectivity and diverse functional group tolerance.
The key intrinsic feature of the catalyst is the pyridine wingtip
confined to the proximity of the alkynophilic metal active site, which
mimics the function of enzyme-like architectures by assisting entropically
favored proton transfers.
Collapse
Affiliation(s)
- Miha Virant
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia.,Departamento de Quı́mica, Universidad Técnica Federico Santa Marı́a, Av. España 1680, 2390123 Valparaı́so, Chile
| | - Mateja Mihelač
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Martin Gazvoda
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Andrej E Cotman
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Anja Frantar
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Balazs Pinter
- Departamento de Quı́mica, Universidad Técnica Federico Santa Marı́a, Av. España 1680, 2390123 Valparaı́so, Chile
| | - Janez Košmrlj
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia
| |
Collapse
|
12
|
Risi C, Cini E, Petricci E, Saponaro S, Taddei M. In Water Markovnikov Hydration and One‐Pot Reductive Hydroamination of Terminal Alkynes under Ruthenium Nanoparticle Catalysis. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901235] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Caterina Risi
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Elena Cini
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Elena Petricci
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Simone Saponaro
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Maurizio Taddei
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
- CNR – ICCOM Istituto di Chimica dei Composti Organometallici Via Madonna del Piano 10 50019 Sesto Fiorentino (FI) Italy
| |
Collapse
|
13
|
Zafar M, Ramalakshmi R, Pathak K, Ahmad A, Roisnel T, Ghosh S. Five-Membered Ruthenacycles: Ligand-Assisted Alkyne Insertion into 1,3-N,S-Chelated Ruthenium Borate Species. Chemistry 2019; 25:13537-13546. [PMID: 31332858 DOI: 10.1002/chem.201902663] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Indexed: 11/10/2022]
Abstract
Building upon previous work, the chemistry of [(η6 -p-cymene)Ru{P(OMe)2 OR}Cl2 ], (R=H or Me) has been extended with [H2 B(mbz)2 ]- (mbz=2-mercaptobenzothiazolyl) using different Ru precursors and borate ligands. As a result, a series of 1,3-N,S-chelated ruthenium borate complexes, for example, [(κ2 -N,S-L)PR3 Ru{κ3 -H,S,S'-H2 B(L)2 }], (2 a-d and 2 a'-d'; R=Ph, Cy, OMe or OPh and L=C5 H4 NS or C7 H4 NS2 ) and [Ru{κ3 -H,S,S'-H2 B(L)2 }2 ], (3: L=C5 H4 NS, 3': L=C7 H4 NS2 ) were isolated upon treatment of [(η6 -p-cymene)RuCl2 PR3 ], 1 a-d (R=Ph, Cy, OMe or OPh) with [H2 B(mp)2 ]- or [H2 B(mbz)2 ]- ligands (mp=2-mercaptopyridyl). All the Ru borate complexes, 2 a-d and 2 a'-d' are stabilized by phosphine/phosphite and hemilabile N,S-chelating ligands. Treatment of these Ru borate species, 2 a'-c' with various terminal alkynes yielded two different types of five-membered ruthenacycle species, namely [PR3 {C7 H4 S2 -(E)-N-C=CH(R')}Ru{κ3 -H,S,S'-H2 B(L)2 }], (4-4'; R=Ph and R'=CO2 Me or C6 H4 NO2 ; L=C7 H4 NS2 ) and [PR3 {C7 H4 NS-(E)-S-C=CH(R')}Ru{κ3 -H,S,S'-H2 B(L)2 }], (5-5', 6 and 7; R=Ph, Cy or OMe and R'=CO2 Me or C6 H4 NO2 ; L=C7 H4 NS2 ). All these five-membered ruthenacycle species contain an exocyclic C=C moiety, presumably formed by the insertion of a terminal alkyne into the Ru-N and Ru-S bonds. The new species have been characterized spectroscopically and the structures were further confirmed by single-crystal X-ray diffraction analysis. Theoretical studies and chemical-bonding analyses established that charge transfer occurs from phosphorus to ruthenium center following the trend PCy3 <PPh3 <P(OPh)3 <P(OMe)3 .
Collapse
Affiliation(s)
- Mohammad Zafar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Rongala Ramalakshmi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Kriti Pathak
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Asif Ahmad
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Thierry Roisnel
- Univ Rennes, CNRS, Institut des Sciences Chimiques de Rennes, UMR 6226, 35042, Rennes, France
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| |
Collapse
|
14
|
Roh SW, Choi K, Lee C. Transition Metal Vinylidene- and Allenylidene-Mediated Catalysis in Organic Synthesis. Chem Rev 2019; 119:4293-4356. [PMID: 30768261 DOI: 10.1021/acs.chemrev.8b00568] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
With their mechanistic novelty and various modalities of reactivity, transition metal unsaturated carbene (alkenylidene) complexes have emerged as versatile intermediates for new reaction discovery. In particular, the past decade has witnessed remarkable advances in the chemistry of metal vinylidenes and allenylidenes, leading to the evolution of a diverse array of new catalytic transformations that are mechanistically distinct from those developed in the previous two decades. This review aims to provide a survey of the recent achievements in the development of organic reactions that make use of transition metal alkenylidenes as catalytic intermediates and their applications to organic synthesis.
Collapse
Affiliation(s)
- Sang Weon Roh
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Kyoungmin Choi
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Chulbom Lee
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| |
Collapse
|
15
|
Hussein S, Priester D, Beet P, Cottom J, Hart SJ, James T, Thatcher RJ, Whitwood AC, Slattery JM. Filling a Niche in "Ligand Space" with Bulky, Electron-Poor Phosphorus(III) Alkoxides. Chemistry 2019; 25:2262-2271. [PMID: 30394591 DOI: 10.1002/chem.201804805] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/02/2018] [Indexed: 01/07/2023]
Abstract
The chemistry of phosphorus(III) ligands, which are of key importance in coordination chemistry, organometallic chemistry and catalysis, is dominated by relatively electron-rich species. Many of the electron-poor PIII ligands that are readily available have relatively small steric profiles. As such, there is a significant gap in "ligand space" where more sterically bulky, electron-poor PIII ligands are needed. This contribution discusses the coordination chemistry, steric and electronic properties of PIII ligands bearing highly fluorinated alkoxide groups of the general form PRn (ORF )3-n , where R=Ph, RF =C(H)(CF3 )2 and C(CF3 )3 ; n=1-3. These ligands are simple to synthesize and a range of experimental and theoretical methods suggest that their steric and electronic properties can be "tuned" by modification of their substituents, making them excellent candidates for large, electron-poor ligands.
Collapse
Affiliation(s)
- Sharifa Hussein
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Denis Priester
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Paul Beet
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Jonathon Cottom
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Sam J Hart
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Tim James
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Robert J Thatcher
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Adrian C Whitwood
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - John M Slattery
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| |
Collapse
|
16
|
Yang Y, Li J, Zhu R, Liu C, Zhang D. Theoretical Insight into the Au(I)-Catalyzed Intermolecular Condensation of Homopropargyl Alcohols with Terminal Alkynes: Reactant Stoichiometric Ratio-Controlled Chemodivergence. J Org Chem 2019; 84:579-588. [PMID: 30394741 DOI: 10.1021/acs.joc.8b02411] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The mechanisms and chemoselectivities on the Au(I)-catalyzed intermolecular condensation between homopropargyl alcohols and terminal alkynes were investigated by performing DFT calculations. The reaction was indicated to involve three stages: transformation of the homopropargyl alcohol (R1) via intramolecular cyclization to the cyclic vinyl ether (R1'), formation of the C-2-arylalkynyl cyclic ether (P1) via hydroalkynylation of R1' with phenylacetylene (R2), and conversion from P1 to 2,3-dihydro-oxepine (P2). The results revealed the origin of the reaction divergence and rationalized the experimental observations that a 1:3 reactant stoichiometric ratio affords P1 as the major product, whereas the 1:1.1 ratio results in P2 in high yield. The reactant stoichiometric ratio-controlled divergent reactivity is attributed to different catalytic activities of the gold catalyst toward different reaction stages. In the 1:3 situation, the excess R2 induces the Au catalyst toward its dimerization and/or hydration, inhibiting the conversion of P1 to P2 and resulting in product P1. Without excess R2, the Au catalysis follows a general cascade reaction, leading to product P2. Theoretical results described a general strategy controlling the reaction divergence by a different reactant stoichiometric ratio. This strategy may be enlightening for chemists who are exploring various synthesis methods with high chemo-, regio-, and enantioselectivities.
Collapse
Affiliation(s)
- Yiying Yang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P.R. China
| | - Jinghua Li
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States.,Department of Materials Science and Engineering , Northwestern University , Evanston , Illinois 60208 , United States
| | - Rongxiu Zhu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P.R. China
| | - Chengbu Liu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P.R. China
| | - Dongju Zhang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P.R. China
| |
Collapse
|
17
|
Ye Z, Huang X, Shao Y, Jiang J, Qu LB, Zhao C, Ke Z. One catalyst, multiple processes: ligand effects on chemoselective control in Ru-catalyzed anti-Markovnikov reductive hydration of terminal alkynes. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02437e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The ligand effect through kinetic and thermodynamic control on the chemoselectivity of one-catalyst multi-step catalysis.
Collapse
Affiliation(s)
- Zongren Ye
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Xiao Huang
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Youxiang Shao
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Jingxing Jiang
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- People's Republic of China
| | - Cunyuan Zhao
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Zhuofeng Ke
- School of Materials Science & Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| |
Collapse
|
18
|
Nájera C, Beletskaya IP, Yus M. Metal-catalyzed regiodivergent organic reactions. Chem Soc Rev 2019; 48:4515-4618. [DOI: 10.1039/c8cs00872h] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review discusses metal-catalysed regiodivergent additions, allylic substitutions, CH-activation, cross-couplings and intra- or intermolecular cyclisations.
Collapse
Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
| | - Irina P. Beletskaya
- Chemistry Department
- M. V. Lomonosov Moscow State University
- 119992 Moscow
- Russia
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
| |
Collapse
|
19
|
Mote NR, Chikkali SH. Hydrogen-Bonding-Assisted Supramolecular Metal Catalysis. Chem Asian J 2018; 13:3623-3646. [DOI: 10.1002/asia.201801302] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/09/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Nilesh R. Mote
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); Anusandhan Bhawan, 2 Rafi Marg New Delhi- 110001 India
| | - Samir H. Chikkali
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); Anusandhan Bhawan, 2 Rafi Marg New Delhi- 110001 India
| |
Collapse
|
20
|
Leeb NM, Drover MW, Love JA, Schafer LL, Slattery JM. Phosphoramidate-Assisted Alkyne Activation: Probing the Mechanism of Proton Shuttling in a N,O-Chelated Cp*Ir(III) Complex. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00656] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nina M. Leeb
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Marcus W. Drover
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jennifer A. Love
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Laurel L. Schafer
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - John M. Slattery
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| |
Collapse
|
21
|
de Aguirre A, Díez-González S, Maseras F, Martín M, Sola E. The Acetate Proton Shuttle between Mutually Trans Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00417] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adiran de Aguirre
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Silvia Díez-González
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington, London SW7 2Az, U.K
| | - Feliu Maseras
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Marta Martín
- Instituto de Síntesis Química y Catálisis Homogénea, CSIC − Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Eduardo Sola
- Instituto de Síntesis Química y Catálisis Homogénea, CSIC − Universidad de Zaragoza, 50009 Zaragoza, Spain
| |
Collapse
|
22
|
Servin P, Laurent R, Tristany M, Romerosa A, Peruzzini M, Garcia-Maroto F, Majoral JP, Caminade AM. Dual properties of water-soluble Ru-PTA complexes of dendrimers: Catalysis and interaction with DNA. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.04.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
23
|
Maity B, Koley D. Solvent-Promoted Regio- and Stereoselectivity in Ru-Catalyzed Hydrocarboxylation of Terminal Alkynes: A DFT Study. ChemCatChem 2017. [DOI: 10.1002/cctc.201701345] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Bholanath Maity
- Department of Chemical Sciences; Indian Institute of Science Education of Research (IISER); Kolkata Mohanpur 741 246 India
| | - Debasis Koley
- Department of Chemical Sciences; Indian Institute of Science Education of Research (IISER); Kolkata Mohanpur 741 246 India
| |
Collapse
|
24
|
Benedetti M, De Castro F, Lamacchia V, Pacifico C, Natile G, Fanizzi FP. Insertion of terminal alkyne into Pt-N bond of the square planar [PtI 2(Me 2phen)] complex. Dalton Trans 2017; 46:15819-15826. [PMID: 29099524 DOI: 10.1039/c7dt03644b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactivity of [PtX2(Me2phen)] complexes (X = Cl, Br, I; Me2phen = 2,9-dimethyl-1,10-phenanthroline) with terminal alkynes has been investigated. Although the dichlorido species [PtCl2(Me2phen)] exhibits negligible reactivity, the bromido and iodido derivatives lead in short time to the formation of five-coordinate Pt(ii) complexes of the type [PtX2(Me2phen)(η2-CH[triple bond, length as m-dash]CR)] (X = Br, I; R = Ph, n-Bu), in equilibrium with the starting reagents. Similar to analogous complexes with simple acetylene, the five coordinate species can also undergo dissociation of an halido ligand and formation of the transient square-planar cationic species [PtX(Me2phen)(η2-CH[triple bond, length as m-dash]CR)]+. This latter can further evolve to give an unusual, sparingly soluble square planar product where the former terminal alkyne is converted into a :C[double bond, length as m-dash]C(H)(R) moiety with the α-carbon bridging the Pt(ii) core with one of the two N-donors of coordinated Me2phen. The final product [PtX2{κ2-N,C-(Z)-N[combining low line]1-N10-C[combining low line][double bond, length as m-dash]C(H)(R)}] (N1-N10 = 2,9-dimethyl-1,10-phenanthroline; X = Br, I) contains a Pt-N-C-C-N-C six-membered chelate ring in a square planar Pt(ii) coordination environment.
Collapse
Affiliation(s)
- Michele Benedetti
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Monteroni, I-73100 Lecce, Italy.
| | | | | | | | | | | |
Collapse
|
25
|
Dewyer AL, Zimmerman PM. Simulated Mechanism for Palladium-Catalyzed, Directed γ-Arylation of Piperidine. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01390] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Amanda L. Dewyer
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Paul M. Zimmerman
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| |
Collapse
|
26
|
Sanjeev R, Ravi R, Jagannadham V, Skelton AA. Experimental and Quantum Mechanical Study of Nucleophilic Substitution Reactions of meta- and para-Substituted Benzyl Bromides with Benzylamine in Methanol: Synergy Between Experiment and Theory. Aust J Chem 2017. [DOI: 10.1071/ch16061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This work involves the experimental and theoretical study of the nucleophilic substitution of meta- and para-substituted benzyl bromides with benzylamine. Conductometric rate experiments confirm the applicability of the Hammett linear free-energy relationship to this system. To gain a deep understanding of the physical chemistry at play, a quantum mechanical study of the reaction is also conducted. The quantum mechanical calculations not only reproduce the experimental free energy of activation, but also provide greater insights at the molecular and atomic level. Isolation of the calculated transition state structure and application of the Hammett equation to its electronic, structural, and energetic properties are studied.
Collapse
|
27
|
Sievers C, Noda Y, Qi L, Albuquerque EM, Rioux RM, Scott SL. Phenomena Affecting Catalytic Reactions at Solid–Liquid Interfaces. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02532] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carsten Sievers
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- School of Chemistry & Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Renewable
Bioproducts Institute, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Yu Noda
- Department
of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802-4400, United States
| | - Long Qi
- Department
of Chemical Engineering, University of California, Santa Barbara, California 93106-5080, United States
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
| | - Elise M. Albuquerque
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Instituto Militar de Engenharia, 22290-270 Rio de Janeiro, RJ, Brazil
| | - Robert M. Rioux
- Department
of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802-4400, United States
- Department
of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802-4400, United States
| | - Susannah L. Scott
- Department
of Chemical Engineering, University of California, Santa Barbara, California 93106-5080, United States
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
| |
Collapse
|
28
|
Milner LM, Hall LM, Pridmore NE, Skeats MK, Whitwood AC, Lynam JM, Slattery JM. Access to novel fluorovinylidene ligands via exploitation of outer-sphere electrophilic fluorination: new insights into C–F bond formation and activation. Dalton Trans 2016; 45:1717-26. [DOI: 10.1039/c5dt04596g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal fluorovinylidene complexes have been synthesised for the first time by direct electrophilic fluorination of metal alkynyls.
Collapse
|
29
|
Smith DA, Beweries T, Blasius C, Jasim N, Nazir R, Nazir S, Robertson CC, Whitwood AC, Hunter CA, Brammer L, Perutz RN. The Contrasting Character of Early and Late Transition Metal Fluorides as Hydrogen Bond Acceptors. J Am Chem Soc 2015; 137:11820-31. [DOI: 10.1021/jacs.5b07509] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dan A. Smith
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Torsten Beweries
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Clemens Blasius
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Naseralla Jasim
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Ruqia Nazir
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Sadia Nazir
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | - Craig C. Robertson
- Department of Chemistry, University of Sheffield, Sheffield, S3 7HF, U.K
| | - Adrian C. Whitwood
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| | | | - Lee Brammer
- Department of Chemistry, University of Sheffield, Sheffield, S3 7HF, U.K
| | - Robin N. Perutz
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K
| |
Collapse
|
30
|
Bow JJ, Boyle PD, Blacquiere JM. Substrate‐Mediated Deactivation of a Ru(P
t
Bu
2
N
Bn
2
) Cooperative Complex. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500798] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- John‐Paul J. Bow
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada, N6A 5B7, http://www.uwo.ca/chem/people/faculty/blacquiere.htm
| | - Paul D. Boyle
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada, N6A 5B7, http://www.uwo.ca/chem/people/faculty/blacquiere.htm
| | - Johanna M. Blacquiere
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada, N6A 5B7, http://www.uwo.ca/chem/people/faculty/blacquiere.htm
| |
Collapse
|
31
|
SnCl4·5H2O: A Highly Efficient Catalyst for Hydration of Alkyne. APPLIED SCIENCES-BASEL 2015. [DOI: 10.3390/app5020114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|