51
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Shi Y, Liu S, Liu Y, Huang W, Guan G, Zuo Z. Quasicatalytic and catalytic selective oxidation of methane to methanol over solid materials: a review on the roles of water. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2019. [DOI: 10.1080/01614940.2019.1674475] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yayun Shi
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Shizhong Liu
- Department of Chemistry, Stony Brook University, New York, NY, USA
| | - Yiming Liu
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Wei Huang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Guoqing Guan
- Institute of Regional Innovation (IRI), Hirosaki University, Aomori, Japan
| | - Zhijun Zuo
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, Shanxi, China
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52
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Oeschger RJ, Larsen MA, Bismuto A, Hartwig JF. Origin of the Difference in Reactivity between Ir Catalysts for the Borylation of C-H Bonds. J Am Chem Soc 2019; 141:16479-16485. [PMID: 31539230 DOI: 10.1021/jacs.9b08920] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mechanistic study on the origin of the difference in reactivity between Ir catalysts for C-H borylation reactions is reported. Catalytic reactions of B2pin2 with a series of substrates that require high temperatures and long reaction times were conducted. These reactions catalyzed by the combination of [Ir(COD)(OMe)]2 and 3,4,7,8-tetramethylphenanthroline (tmphen) occur in yields that are substantially higher than those of reactions catalyzed by [Ir(COD)(OMe)]2 and 4,4'-di-tert-butylbipyridine (dtbpy). The electronic properties of Ir catalysts ligated by dtbpy or tmphen and their stoichiometric reactivity were investigated. It was found that a longer lifetime rather than higher reactivity of the catalyst leads to higher yields of reactions catalyzed by Ir-tmphen. The catalyst ligated by dtbpy decomposes principally by dissociation of the ligand and rapid borylation at the positions alpha to nitrogen. Thus, the greater stability of the catalyst containing tmphen results from its greater binding constant.
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Affiliation(s)
- Raphael J Oeschger
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Matthew A Larsen
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Alessandro Bismuto
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - John F Hartwig
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
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53
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Liebov NS, Goldberg JM, Boaz NC, Coutard N, Kalman SE, Zhuang T, Groves JT, Gunnoe TB. Selective Photo‐Oxygenation of Light Alkanes Using Iodine Oxides and Chloride. ChemCatChem 2019. [DOI: 10.1002/cctc.201901175] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Nichole S. Liebov
- Department of Chemistry University of Virginia Charlottesville VA 22904 USA
| | | | - Nicholas C. Boaz
- Department of Chemistry Princeton University Princeton NJ 08544 USA
- Department of Chemistry North Central College Naperville IL 60540 USA
| | - Nathan Coutard
- Department of Chemistry University of Virginia Charlottesville VA 22904 USA
| | - Steven E. Kalman
- Department of Chemistry University of Virginia Charlottesville VA 22904 USA
- Chemistry Program School of Natural Sciences and Mathematics Stockton University Galloway NJ 08205 USA
| | - Thompson Zhuang
- Department of Chemistry Princeton University Princeton NJ 08544 USA
| | - John T. Groves
- Department of Chemistry Princeton University Princeton NJ 08544 USA
| | - T. Brent Gunnoe
- Department of Chemistry University of Virginia Charlottesville VA 22904 USA
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54
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Khan SN, Miliordos E. Methane to Methanol Conversion Facilitated by Transition-Metal Methyl and Methoxy Units: The Cases of FeCH3+ and FeOCH3+. J Phys Chem A 2019; 123:5590-5599. [DOI: 10.1021/acs.jpca.9b04005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shahriar N. Khan
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312, United States
| | - Evangelos Miliordos
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312, United States
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55
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Brezicki G, Kammert JD, Gunnoe TB, Paolucci C, Davis RJ. Insights into the Speciation of Cu in the Cu-H-Mordenite Catalyst for the Oxidation of Methane to Methanol. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00852] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gordon Brezicki
- Department of Chemical Engineering, University of Virginia, 102 Engineer’s Way, P.O. Box 400741, Charlottesville, Virginia 22904-4741, United States
| | - James D. Kammert
- Department of Chemical Engineering, University of Virginia, 102 Engineer’s Way, P.O. Box 400741, Charlottesville, Virginia 22904-4741, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904-4741, United States
| | - Christopher Paolucci
- Department of Chemical Engineering, University of Virginia, 102 Engineer’s Way, P.O. Box 400741, Charlottesville, Virginia 22904-4741, United States
| | - Robert J. Davis
- Department of Chemical Engineering, University of Virginia, 102 Engineer’s Way, P.O. Box 400741, Charlottesville, Virginia 22904-4741, United States
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56
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Mitra M, Mukherjee D, Mandal U, Shteinman AA. Palladium(II)-assisted ortho alkylation of C(sp2)-H bonds in substituted azobenzenes with simple alkyl halides. J COORD CHEM 2019. [DOI: 10.1080/00958972.2018.1545089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Mainak Mitra
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India
- Department of Chemistry, Burdwan Raj College, Purba Bardhaman, WB, India
| | | | - Ujjwal Mandal
- Department of Chemistry, University of Burdwan, Purba Bardhaman, WB, India
| | - Albert A. Shteinman
- Institute of Problems of Chemical Physics, Chernogolovka, Russian Federation
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57
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Oswald T, Fischer M, Struckmann N, Schmidtmann M, Beckhaus R. Reaction of Pentafulvene Titanium and Zirconium Complexes with Phosphorus Ylides: Stoichiometric Reactions and Catalytic Intramolecular Proton Shuttles. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00831] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tim Oswald
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Malte Fischer
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Niclas Struckmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
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58
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Das A, Mandal I, Venkatramani R, Dasgupta J. Ultrafast photoactivation of C─H bonds inside water-soluble nanocages. SCIENCE ADVANCES 2019; 5:eaav4806. [PMID: 30801018 PMCID: PMC6386559 DOI: 10.1126/sciadv.aav4806] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 01/11/2019] [Indexed: 05/05/2023]
Abstract
Light energy absorbed by molecules can be harnessed to activate chemical bonds with extraordinary speed. However, excitation energy redistribution within various molecular degrees of freedom prohibits bond-selective chemistry. Inspired by enzymes, we devised a new photocatalytic scheme that preorganizes and polarizes target chemical bonds inside water-soluble cationic nanocavities to engineer selective functionalization. Specifically, we present a route to photoactivate weakly polarized sp3 C─H bonds in water via host-guest charge transfer and control its reactivity with aerial O2. Electron-rich aromatic hydrocarbons self-organize inside redox complementary supramolecular cavities to form photoactivatable host-guest charge transfer complexes in water. An ultrafast C─H bond cleavage within ~10 to 400 ps is triggered by visible-light excitation, through a cage-assisted and solvent water-assisted proton-coupled electron transfer reaction. The confinement prolongs the lifetime of the carbon-centered radical to enable a facile yet selective reaction with molecular O2 leading to photocatalytic turnover of oxidized products in water.
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Affiliation(s)
- Ankita Das
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Imon Mandal
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Ravindra Venkatramani
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai 400005, India
| | - Jyotishman Dasgupta
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai 400005, India
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59
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Gallen A, Riera A, Verdaguer X, Grabulosa A. Coordination chemistry and catalysis with secondary phosphine oxides. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01501a] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Review on synthesis, coordination chemistry and catalysis with secondary phosphine oxides.
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Affiliation(s)
- Albert Gallen
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- Barcelona
- Spain
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB-Barcelona)
- The Barcelona Institute of Science and Technology
- Barcelona 08028
- Spain
- Departament de Química Inorgànica i Orgànica
| | - Xavier Verdaguer
- Institute for Research in Biomedicine (IRB-Barcelona)
- The Barcelona Institute of Science and Technology
- Barcelona 08028
- Spain
- Departament de Química Inorgànica i Orgànica
| | - Arnald Grabulosa
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- Barcelona
- Spain
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60
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Efficient indenones synthesis via iridium-catalyzed decarboxylative annulation between 2-oxo-2-phenylacetic acids and alkynes. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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61
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Lu Q, Neese F, Bistoni G. London dispersion effects in the coordination and activation of alkanes in σ-complexes: a local energy decomposition study. Phys Chem Chem Phys 2019; 21:11569-11577. [DOI: 10.1039/c9cp01309a] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coupled-cluster-based local energy decomposition (LED) analysis is used to elucidate the nature of the TM–alkane interaction in alkane σ-complexes.
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Affiliation(s)
- Qing Lu
- Max-Planck-Institut für Kohlenforschung
- Mülheim an der Ruhr
- Germany
| | - Frank Neese
- Max-Planck-Institut für Kohlenforschung
- Mülheim an der Ruhr
- Germany
| | - Giovanni Bistoni
- Max-Planck-Institut für Kohlenforschung
- Mülheim an der Ruhr
- Germany
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62
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Dang HT, Lee HW, Lee J, Choo H, Hong SH, Cheong M, Lee H. Enhanced Catalytic Activity of (DMSO)2PtCl2 for the Methane Oxidation in the SO3–H2SO4 System. ACS Catal 2018. [DOI: 10.1021/acscatal.8b04101] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huyen Tran Dang
- Clean Energy Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok dong, Sungbuk-gu, Seoul 136-791, Republic of Korea
- Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea
| | - Hee Won Lee
- Clean Energy Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok dong, Sungbuk-gu, Seoul 136-791, Republic of Korea
- Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea
| | - Jieon Lee
- Center for Neuro-Medicine, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Hyunah Choo
- Center for Neuro-Medicine, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Soon Hyeok Hong
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Minserk Cheong
- Department of Chemistry and Research Institute of Basic Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dondaemun-gu, Seoul 02447, Republic of Korea
| | - Hyunjoo Lee
- Clean Energy Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok dong, Sungbuk-gu, Seoul 136-791, Republic of Korea
- Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology, Seoul 02792, Republic of Korea
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63
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Steele JL, Tahsini L, Sun C, Elinburg JK, Kotyk CM, McNeely J, Stoian SA, Dragulescu-Andrasi A, Ozarowski A, Ozerov M, Krzystek J, Telser J, Bacon JW, Golen JA, Rheingold AL, Doerrer LH. Square-planar Co(iii) in {O 4} coordination: large ZFS and reactivity with ROS. Chem Commun (Camb) 2018; 54:12045-12048. [PMID: 30294742 DOI: 10.1039/c8cc04464c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of distorted square-planar perfluoropinacolate Co compound [CoII(pinF)2]2-, 1, to [CoIII(pinF)2]1-, 2, is reported. Rigidly square-planar 2 has an intermediate-spin, S = 1, ground state and very large zero-field splitting (ZFS) with D = 67.2 cm-1; |E| = 18.0 cm-1, (E/D = 0.27), g⊥ = 2.10, g‖ = 2.25 and χTIP = 1950 × 10-6 cm3 mol-1. This Co(iii) species, 2, reacts with ROS to oxidise two (pinF)2- ligands to form tetrahedral [CoII(Hpfa)4]2-, 3.
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Affiliation(s)
- Jennifer L Steele
- Chemistry Department, Boston University, 590 Commonwealth Ave., Boston, MA 02215, USA.
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64
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Najafian A, Cundari TR. C–H Activation of Methane by Nickel–Methoxide Complexes: A Density Functional Theory Study. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00472] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ahmad Najafian
- Department of Chemistry, Center of Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Thomas R. Cundari
- Department of Chemistry, Center of Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
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65
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Ahn S, Sorsche D, Berritt S, Gau MR, Mindiola DJ, Baik MH. Rational Design of a Catalyst for the Selective Monoborylation of Methane. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02771] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Seihwan Ahn
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Dieter Sorsche
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Simon Berritt
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Michael R. Gau
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Daniel J. Mindiola
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
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66
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King CR, Rollins N, Holdaway A, Konnick MM, Periana RA, Ess DH. Electrophilic Impact of High-Oxidation State Main-Group Metal and Ligands on Alkane C–H Activation and Functionalization Reactions. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00418] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Clinton R. King
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Nick Rollins
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Ashley Holdaway
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Michael M. Konnick
- Hyconix, Inc., 4575 Weaver Parkway, Warrenville, Illinois 60555, United States
| | - Roy A. Periana
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Daniel H. Ess
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
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67
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Gustafson SJ, Konnick MM, Periana RA, Ess DH. Mechanisms and Reactivity of Tl(III) Main-Group-Metal–Alkyl Functionalization in Water. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Samantha J. Gustafson
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Michael M. Konnick
- Hyconix, Inc., 4575 Weaver Parkway, Warrenville, Illinois 60555, United States
| | - Roy A. Periana
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Daniel H. Ess
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
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68
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Simayi R, Gillbard SM, Cross WB, Hope EG, Singh K, Solan GA. Ligand and solvent control of selectivity in the C-H activation of a pyridylimine-substituted 1-naphthalene; a combined synthetic and computational study. Dalton Trans 2018; 47:11680-11690. [PMID: 30101960 DOI: 10.1039/c8dt02565g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The pyridylimine-substituted 1-naphthalenes, 2-(1-C10H7)-6-{CR[double bond, length as m-dash]N(2,6-i-Pr2C6H3)}C5H3N (R = Me HLMe, H HLH), react with Na2[PdCl4] in acetic acid at elevated temperature to afford either ortho-C-Hnaphthyl activated (LMe)PdCl (2ortho) or the unactivated adduct (HLH)PdCl2 (1b). Alternatively, 1b and its ketimine analogue (HLMe)PdCl2 (1a), can be prepared by treating (MeCN)2PdCl2 with either HLMe or HLH in chloroform at room temperature. Regio-selective ortho-C-H activation to form 2ortho can also be initiated by the thermolysis of 1a in acetic acid, while no reaction occurs under similar conditions with 1b. Interestingly, the C-H activation of HLMe to give 2ortho is found to be reversible with 100% deuteration of the peri-site occurring on reacting Na2[PdCl4] with HLMe in acetic acid-d4. By contrast, heating 1a in toluene gives a 55 : 45 mixture of 2ortho and its peri-activated isomer 2peri. Pure 2peri can, however, be obtained either from (LMe)PdOAc (3peri) by OAc/Cl exchange or by the sequential reactions of 1a with firstly silver acetate then with aqueous sodium chloride. Intriguingly, a peri to ortho interconversion occurs on heating 2peri in acetic acid to give 2ortho. DFT calculations have been used to investigate the C-H activation steps and it is found that in acetic acid ortho-C-H activation is kinetically and thermodynamically favoured but peri-CH activation is kinetically accessible (ΔΔG‡ = 2.4 kcal mol-1). By contrast in toluene, the reaction appears to be irreversible with the difference in barrier height for ortho- and peri-C-H activation being very small within the error of the method (ΔΔG‡ = 0.7 kcal mol-1), findings that are in agreement with the empirically observed product distribution for 2ortho and 2peri. Single crystal X-ray structures are reported for 1a, 1b, 2ortho and 2peri.
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Affiliation(s)
- Rena Simayi
- Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK.
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69
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Tan G, You Q, You J. Iridium-Catalyzed Oxidative Heteroarylation of Arenes and Alkenes: Overcoming the Restriction to Specific Substrates. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02639] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Guangying Tan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Qiulin You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
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70
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71
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Nilles CK, Herath HNK, Fanous H, Ugrinov A, Parent AR. Electrochemical properties and C-H bond oxidation activity of [Ru(tpy)(pyalk)Cl] + and [Ru(tpy)(pyalk)(OH)] . Dalton Trans 2018; 47:9701-9708. [PMID: 29978176 DOI: 10.1039/c8dt02260g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[Ru(tpy)(pyalk)Cl]Cl (pyalk = 2-(2'-pyridyl)-2-propanol) was synthesized and characterized crystallographically and electrochemically. Upon dissolution in water and acetonitrile, [Ru(tpy)(pyalk)Cl]Cl was found to form [Ru(tpy)(pyalk)Cl]+ and [Ru(tpy)(pyalk)(OH)]+, respectively. The Ru(ii/iii) couple of [Ru(tpy)(pyalk)Cl]+ was found to be relatively low compared to that of other Ru complexes in acetonitrile, but the Ru(iii/iv) couple was not significantly different than other Ru complexes bearing anionic ligands. Pourbaix diagrams were generated for [Ru(tpy)(phpy)(OH2)]+ (phpy = 2-phenylpyridine) and [Ru(tpy)(pyalk)(OH)]+ in water, and it was found that [Ru(tpy)(pyalk)(OH)]+ has a lower Ru(ii/iii) potential than [Ru(tpy)(phpy)(OH2)]+ under neutral to alkaline pH. [Ru(tpy)(pyalk)(OH)]+ was found to catalyze C-H bond hydroxylation of secondary alkanes and epoxidation of alkenes using cerium(iv) ammonium nitrate as the primary oxidant.
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Affiliation(s)
- Christian K Nilles
- Department of Chemistry and Biochemistry, North Dakota State University, PO Box 6050, Fargo, ND 58108-6050, USA.
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72
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Hydrocarbon functionalization on palladium compounds in acidic solutions (a historical review). J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.12.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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73
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74
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Becker P, Duhamel T, Martínez C, Muñiz K. Designing Homogeneous Bromine Redox Catalysis for Selective Aliphatic C-H Bond Functionalization. Angew Chem Int Ed Engl 2018; 57:5166-5170. [PMID: 29485747 DOI: 10.1002/anie.201800375] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/13/2018] [Indexed: 01/17/2023]
Abstract
The potential of homogeneous oxidation catalysis employing bromine has remained largely unexplored. We herein show that the combination of a tetraalkylammonium bromide and meta-chloroperbenzoic acid offers a unique catalyst system for the convenient and selective oxidation of saturated C(sp3 )-H bonds upon photochemical initiation with day light. This approach enables remote, intramolecular, position-selective C-H amination as demonstrated for 20 different examples. For the first time, an N-halogenated intermediate was isolated as the active catalyst state in a catalytic Hofmann-Löffler reaction. In addition, an expeditious one-pot synthesis of N-sulfonyl oxaziridines from N-sulfonamides was developed and exemplified for 15 transformations. These pioneering examples provide a change in paradigm for molecular catalysis with bromine.
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Affiliation(s)
- Peter Becker
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Thomas Duhamel
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Facultad de Química, Universidad de Oviedo, C/Julián Clavería, 33006, Oviedo, Spain
| | - Claudio Martínez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,ICREA, Pg. Lluís Companys 23, 08010, Barcelona, Spain
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75
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Becker P, Duhamel T, Martínez C, Muñiz K. Der Entwurf einer homogenen Brom-Redoxkatalyse zur selektiven aliphatischen CH-Bindungsfunktionalisierung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800375] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Peter Becker
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spanien
| | - Thomas Duhamel
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spanien
- Facultad de Química; Universidad de Oviedo; C/Julián Clavería 33006 Oviedo Spanien
| | - Claudio Martínez
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spanien
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spanien
- ICREA; Pg. Lluís Companys 23 08010 Barcelona Spanien
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76
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Ye YX, Ou YL, Liang H, Zhou HY, Ye BH. Copper-catalyzed direct α-alkynylation of ethers under mild conditions. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2017.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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77
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Abstract
The isolation of terminal oxo complexes of the late transition metals promises new avenues in oxidation catalysis like the selective and catalytic hydroxylation of unreactive CH bonds, the activation of water, or the upgrading of olefins. While terminal oxo ligands are ubiquitous for early transition metals, well-characterized examples with group 10 metals remain hitherto elusive. In search for palladium terminal oxo complexes, the relative stability/reactivity of such compounds are evaluated computationally (CASSCF/NEVPT2; DFT). The calculations investigate only well-known ligand systems with established synthetic procedures and relevance for coordination chemistry and homogeneous catalysis. They delineate and quantify, which electronic properties of ancillary ligands are crucial for taming otherwise highly reactive terminal oxo intermediates. Notably, carbene ligands with both strong σ-donor and strong π-acceptor properties are best suited for the stabilization of palladium(ii) terminal oxo complexes, whereas ligands with a weaker ligand field lead to highly reactive complexes. Strongly donating ligands are an excellent choice for high-valent palladium(iv) terminal oxo compounds. Low coordinate palladium(ii) as well as high-valent palladium(iv) complexes are best suited for the activation of strong bonds.
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Affiliation(s)
- Dominik Munz
- Friedrich-Alexander Universität Erlangen-Nürnberg , Egerlandstr. 1 , 91058 Erlangen , Germany .
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78
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Raţ CI, Soran A, Varga RA, Silvestru C. C–H Bond Activation Mediated by Inorganic and Organometallic Compounds of Main Group Metals. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2018. [DOI: 10.1016/bs.adomc.2018.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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79
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Hu Q, Liu X, Wang G, Wang F, Li Q, Zhang W. Ag 1 Pd 1 Nanoparticles-Reduced Graphene Oxide as a Highly Efficient and Recyclable Catalyst for Direct Aryl C-H Olefination. Chemistry 2017; 23:17659-17662. [PMID: 28949081 DOI: 10.1002/chem.201704056] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Indexed: 12/20/2022]
Abstract
The efficient and selective palladium-catalyzed activation of C-H bonds is of great importance for the construction of diverse bioactive molecules. Despite significant progress, the inability to recycle palladium catalysts and the need for additives impedes the practical applications of these reactions. Ag1 Pd1 nanoparticles-reduced graphene oxide (Ag1 Pd1 -rGO) was used as highly efficient and recyclable catalyst for the chelation-assisted ortho C-H bond olefination of amides with acrylates in good yields with a broad substrate scope. The catalyst can be recovered and reused at least 5 times without losing activity. A synergistic effect between the Ag and Pd atoms on the catalytic activity was found, and a plausible mechanism for the AgPd-rGO catalyzed C-H olefination is proposed. These findings suggest that the search for such Pd-based bimetallic alloy nanoparticles is a new method towards the development of superior recyclable catalysts for direct aryl C-H functionalization under mild conditions.
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Affiliation(s)
- Qiyan Hu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, No.1 Beijing East Road, Wuhu, Anhui Province, 241000, P.R. China
| | - Xiaowang Liu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, No.1 Beijing East Road, Wuhu, Anhui Province, 241000, P.R. China
| | - Guoliang Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, No.1 Beijing East Road, Wuhu, Anhui Province, 241000, P.R. China
| | - Feifan Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, No.1 Beijing East Road, Wuhu, Anhui Province, 241000, P.R. China
| | - Qian Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, No.1 Beijing East Road, Wuhu, Anhui Province, 241000, P.R. China
| | - Wu Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, No.1 Beijing East Road, Wuhu, Anhui Province, 241000, P.R. China
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80
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Huang M, Yang T, Paretsky JD, Berry JF, Schomaker JM. Inverting Steric Effects: Using "Attractive" Noncovalent Interactions To Direct Silver-Catalyzed Nitrene Transfer. J Am Chem Soc 2017; 139:17376-17386. [PMID: 29091737 PMCID: PMC6292671 DOI: 10.1021/jacs.7b07619] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nitrene transfer (NT) reactions represent powerful and direct methods to convert C-H bonds into amine groups that are prevalent in many commodity chemicals and pharmaceuticals. The importance of the C-N bond has stimulated the development of numerous transition-metal complexes to effect chemo-, regio-, and diastereoselective NT. An ongoing challenge is to understand how subtle interactions between catalyst and substrate influence the site-selectivity of the C-H amination event. In this work, we explore the underlying reasons why Ag(tpa)OTf (tpa = tris(pyridylmethyl)amine) prefers to activate α-conjugated C-H bonds over 3° alkyl C(sp3)-H bonds and apply these insights to reaction optimization and catalyst design. Experimental results suggest possible roles of noncovalent interactions (NCIs) in directing the NT; computational studies support the involvement of π···π and Ag···π interactions between catalyst and substrate, primarily by lowering the energy of the directed transition state and reaction conformers. A simple Hess's law relationship can be employed to predict selectivities for new substrates containing competing NCIs. The insights presented herein are poised to inspire the design of other catalyst-controlled C-H functionalization reactions.
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Affiliation(s)
- Minxue Huang
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Tzuhsiung Yang
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Jonathan D. Paretsky
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - John F. Berry
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Jennifer M. Schomaker
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
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81
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Li XN, Zou XP, He SG. Metal-mediated catalysis in the gas phase: A review. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62782-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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82
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Propane CH activation by palladium complexes bearing ligands with Charge-shift bonding characteristics: A DFT study. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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83
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Wang X, Liu RF, Cork J, Gu Y, Upham DC, Laycock B, McFarland EW. Investigation of the Bromination/Dehydrobromination of Long Chain Alkanes. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b01039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaoyu Wang
- Dow
Centre for Sustainable Engineering Innovation, School of Chemical
Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Ru-Fen Liu
- Departments
of Chemical Engineering and Chemistry, The University of California, Santa
Barbara, California 93106, United States
| | - Jorja Cork
- Dow
Centre for Sustainable Engineering Innovation, School of Chemical
Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Yi Gu
- Dow
Centre for Sustainable Engineering Innovation, School of Chemical
Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - David C. Upham
- Departments
of Chemical Engineering and Chemistry, The University of California, Santa
Barbara, California 93106, United States
| | - Bronwyn Laycock
- Dow
Centre for Sustainable Engineering Innovation, School of Chemical
Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Eric W. McFarland
- Dow
Centre for Sustainable Engineering Innovation, School of Chemical
Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
- Departments
of Chemical Engineering and Chemistry, The University of California, Santa
Barbara, California 93106, United States
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84
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Ninković DB, Moncho S, Petrović PV, Zarić SD, Hall MB, Brothers EN. Methane Activations by Titanium Neopentylidene Complexes: Electronic Resilience and Steric Control. Inorg Chem 2017; 56:9264-9272. [DOI: 10.1021/acs.inorgchem.7b01340] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Dragan B. Ninković
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Salvador Moncho
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Predrag V. Petrović
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Snežana D. Zarić
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
- Department
of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia
| | - Michael B. Hall
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Edward N. Brothers
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
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85
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Zhang S, Foyle SD, Okrut A, Solovyov A, Katz A, Gates BC, Dixon DA. Role of N-Heterocyclic Carbenes as Ligands in Iridium Carbonyl Clusters. J Phys Chem A 2017; 121:5029-5044. [DOI: 10.1021/acs.jpca.7b04161] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shengjie Zhang
- Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Sawyer D. Foyle
- Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Alexander Okrut
- Department
of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Andrew Solovyov
- Department
of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Alexander Katz
- Department
of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Bruce C. Gates
- Department
of Chemical Engineering, University of California at Davis, Davis, California 95616, United States
| | - David A. Dixon
- Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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86
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Bomio C, Kabeshov MA, Lit AR, Lau SH, Ehlert J, Battilocchio C, Ley SV. Unveiling the role of boroxines in metal-free carbon-carbon homologations using diazo compounds and boronic acids. Chem Sci 2017; 8:6071-6075. [PMID: 29619197 PMCID: PMC5859889 DOI: 10.1039/c7sc02264f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 06/15/2017] [Indexed: 11/27/2022] Open
Abstract
By means of computational and experimental mechanistic studies the fundamental role of boroxines in the reaction between diazo compounds and boronic acids was elucidated.
By means of computational and experimental mechanistic studies the fundamental role of boroxines in the reaction between diazo compounds and boronic acids was elucidated. Consequently, a selective metal-free carbon–carbon homologation of aryl and vinyl boroxines using TMSCHN2, giving access to TMS-pinacol boronic ester products, was developed.
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Affiliation(s)
- Claudio Bomio
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB21EW , UK . ; http://www.leygroup.ch.cam.ac.uk
| | - Mikhail A Kabeshov
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB21EW , UK . ; http://www.leygroup.ch.cam.ac.uk
| | - Arthur R Lit
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB21EW , UK . ; http://www.leygroup.ch.cam.ac.uk
| | - Shing-Hing Lau
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB21EW , UK . ; http://www.leygroup.ch.cam.ac.uk
| | - Janna Ehlert
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB21EW , UK . ; http://www.leygroup.ch.cam.ac.uk
| | - Claudio Battilocchio
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB21EW , UK . ; http://www.leygroup.ch.cam.ac.uk
| | - Steven V Ley
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB21EW , UK . ; http://www.leygroup.ch.cam.ac.uk
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87
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Kerr WJ, Reid M, Tuttle T. Iridium-Catalyzed Formyl-Selective Deuteration of Aldehydes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702997] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- William J. Kerr
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow, Scotland G1 1XL UK
| | - Marc Reid
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow, Scotland G1 1XL UK
| | - Tell Tuttle
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow, Scotland G1 1XL UK
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88
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Kerr WJ, Reid M, Tuttle T. Iridium-Catalyzed Formyl-Selective Deuteration of Aldehydes. Angew Chem Int Ed Engl 2017; 56:7808-7812. [PMID: 28510987 DOI: 10.1002/anie.201702997] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Indexed: 12/14/2022]
Abstract
We report the first direct catalytic method for formyl-selective deuterium labeling of aromatic aldehydes under mild conditions, using an iridium-based catalyst designed to favor formyl over aromatic C-H activation. A good range of aromatic aldehydes is selectively labeled, and a one-pot labeling/olefination method is also described. Computational studies support kinetic product control over competing aromatic labeling and decarbonylation pathways.
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Affiliation(s)
- William J Kerr
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland, G1 1XL, UK
| | - Marc Reid
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland, G1 1XL, UK
| | - Tell Tuttle
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland, G1 1XL, UK
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89
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Zweig JE, Kim DE, Newhouse TR. Methods Utilizing First-Row Transition Metals in Natural Product Total Synthesis. Chem Rev 2017; 117:11680-11752. [PMID: 28525261 DOI: 10.1021/acs.chemrev.6b00833] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
First-row transition-metal-mediated reactions constitute an important and growing area of research due to the low cost, low toxicity, and exceptional synthetic versatility of these metals. Currently, there is considerable effort to replace existing precious-metal-catalyzed reactions with first-row analogs. More importantly, there are a plethora of unique transformations mediated by first-row metals, which have no classical second- or third-row counterpart. Herein, the application of first-row metal-mediated methods to the total synthesis of natural products is discussed. This Review is intended to highlight strategic uses of these metals to realize efficient syntheses and highlight the future potential of these reagents and catalysts in organic synthesis.
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Affiliation(s)
- Joshua E Zweig
- Department of Chemistry, Yale University , 275 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Daria E Kim
- Department of Chemistry, Yale University , 275 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Timothy R Newhouse
- Department of Chemistry, Yale University , 275 Prospect Street, New Haven, Connecticut 06520-8107, United States
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90
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Srinivas K, Dangat Y, Kommagalla Y, Vanka K, Ramana CV. Electronic Control on Linear versus Branched Alkylation of 2-/3-Aroylbenzofurans with Acrylates: Combined DFT and Synthetic Studies. Chemistry 2017; 23:7570-7581. [PMID: 28370600 DOI: 10.1002/chem.201700643] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Indexed: 01/14/2023]
Abstract
Investigations on the factors that govern unusual branched alkylation of 2-aroylbenzofurans with acrylates by Ru-catalyzed carbonyl-directed C-H activation has been carried out by calculating the kinetics associated with the two key steps-the coordination of the acrylate with the intermediate ruthenacycle and the subsequent migratory insertion reaction-studied with the help of DFT calculations. Eight possible orientations for each mode of alkylation have been considered for the calculations. From these calculations, it has been understood that there is a synergistic operation of the steric and electronic effects favoring the branched alkylation. Further DFT investigations on the alkylation of the isomeric 3-aroylbenzofurans indicated a preference for the linear alkylation and this has been verified experimentally. Overall, the observed/calculated complementary selectivity in the alkylation of 2-/3-aroylbenzofurans with acrylates reveals that the substrate-dependent charge distribution of the Ru-C bond in the intermediate ruthenacycle is an important determining factor and thus the current work opens up a new domain of substrate design for controlling regioselectivity.
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Affiliation(s)
- Kolluru Srinivas
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune, 411008, India
| | - Yuvraj Dangat
- Division of Physical and Materials Chemistry, CSIR-National Chemical Laboratory, Pune-, 411008, India
| | - Yadagiri Kommagalla
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune, 411008, India
| | - Kumar Vanka
- Division of Physical and Materials Chemistry, CSIR-National Chemical Laboratory, Pune-, 411008, India
| | - Chepuri V Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune, 411008, India
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91
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Ruthenium (II)-catalyzed synthesis of phthalides via the cascade addition and cyclization of aromatic acids with aldehydes. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9046-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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92
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Shaw PA, Rourke JP. Selective C-C coupling at a Pt(iv) centre: 100% preference for sp 2-sp 3 over sp 3-sp 3. Dalton Trans 2017; 46:4768-4776. [PMID: 28345086 DOI: 10.1039/c7dt00328e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxidative addition of three different organic halides RX to the non-symmetric platinum(ii) mer coordinated dicyclometallated C^N^C complex 1 yielded short-lived six-coordinate platinum(iv) complexes 2(R) (R = Me, allyl, Bn), with the incoming groups trans across the platinum centre. A spontaneous reductive coupling reaction then occurred with, in each case, a completely chemoselective sp2-sp3 coupling, and exclusively gave R-3, with the newly introduced R group bonded to the previously cyclometallated aryl ring. Following a recyclometallation reaction, the oxidative addition/reductive elimination cycle was repeated and gave the same selectivity. A one-pot route to doubly alkylating the aryl ring was developed. The observed selectivity might have been predicted on the normal basis of a steric barrier associated with non-flat sp3 hybridised groups, but we suggest that it arises from the stereochemistry at the metal, and the orientation of the ligands.
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Affiliation(s)
- Paul A Shaw
- Department of Chemistry, Warwick University, Coventry, CV4 7AL, UK.
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93
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94
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Xue XS, Ji P, Zhou B, Cheng JP. The Essential Role of Bond Energetics in C-H Activation/Functionalization. Chem Rev 2017; 117:8622-8648. [PMID: 28281752 DOI: 10.1021/acs.chemrev.6b00664] [Citation(s) in RCA: 304] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The most fundamental concepts in chemistry are structure, energetics, reactivity and their inter-relationships, which are indispensable for promoting chemistry into a rational science. In this regard, bond energy, the intrinsic determinant directly related to structure and reactivity, should be most essential in serving as a quantitative basis for the design and understanding of organic transformations. Although C-H activation/functionalization have drawn tremendous research attention and flourished during the past decades, understanding the governing rules of bond energetics in these processes is still fragmentary and seems applicable only to limited cases, such as metal-oxo-mediated hydrogen atom abstraction. Despite the complexity of C-H activation/functionalization and the difficulties in measuring bond energies both for the substrates and intermediates, this is definitely a very important issue that should be more generally contemplated. To this end, this review is rooted in the energetic aspects of C-H activation/functionalization, which were previously rarely discussed in detail. Starting with a concise but necessary introduction of various classical methods for measuring heterolytic and homolytic energies for C-H bonds, the present review provides examples that applied the concept and values of C-H bond energy in rationalizing the observations associated with reactivity and/or selectivity in C-H activation/functionalization.
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Affiliation(s)
- Xiao-Song Xue
- State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin, 300071, China
| | - Pengju Ji
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University , Beijing, 100084, China
| | - Biying Zhou
- State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin, 300071, China
| | - Jin-Pei Cheng
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University , Beijing, 100084, China.,State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin, 300071, China
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95
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Yu X, Duan Y, Guo W, Wang T, Xie Q, Wu S, Jiang C, Fan Z, Wang J, Liu G. Rhodium-Catalyzed Oxidative Decarboxylation Annulation Reactions of Mandelic Acids and Alkynes: An Efficient Synthetic Method for Indenones. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaobo Yu
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
- College
of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Yulian Duan
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Weijie Guo
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Tao Wang
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Qingxiao Xie
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Shutao Wu
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Chenggong Jiang
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Zixiong Fan
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Jianhui Wang
- Department
of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Guiyan Liu
- Tianjin
Key Laboratory of Structure and Performance for Functional Molecules;
Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry;
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, People’s Republic of China
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96
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Si CM, Shao LP, Mao ZY, Zhou W, Wei BG. An efficient approach to trans-4-hydroxy-5-substituted 2-pyrrolidinones through a stereoselective tandem Barbier process: divergent syntheses of (3R,4S)-statines, (+)-preussin and (−)-hapalosin. Org Biomol Chem 2017; 15:649-661. [DOI: 10.1039/c6ob02523d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Natural products of (+)-preussin and (−)-hapalosin have been asymmetrically synthesized through the stereoselective tandem Barbier process.
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Affiliation(s)
- Chang-Mei Si
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Lu-Ping Shao
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Zhuo-Ya Mao
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Wen Zhou
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
| | - Bang-Guo Wei
- Department of Natural Products Chemistry
- School of Pharmacy
- Fudan University
- Shanghai
- China
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97
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Duan Y, Lin JH, Xiao JC, Gu YC. Fe-Catalyzed insertion of fluoromethylcarbenes generated from sulfonium salts into X–H bonds (X = Si, C, P). Org Chem Front 2017. [DOI: 10.1039/c7qo00430c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Fe-catalyzed insertion of fluoromethylcarbenes including trifluoromethylcarbene and difluoromethylcarbene into X–H (X = Si, C and P) bonds is described.
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Affiliation(s)
- Yaya Duan
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Shanghai 200032
| | - Jin-Hong Lin
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Shanghai 200032
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Shanghai 200032
| | - Yu-Cheng Gu
- Syngenta
- Jealott's Hill International Research Centre
- Bracknell
- UK
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98
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Thacker NC, Ji P, Lin Z, Urban A, Lin W. Phenanthroline-based metal–organic frameworks for Fe-catalyzed Csp3–H amination. Faraday Discuss 2017. [DOI: 10.1039/c7fd00030h] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here the synthesis of a robust and highly porous Fe-phenanthroline-based metal–organic framework (MOF) and its application in catalyzing challenging inter- and intramolecular C–H amination reactions. For the intermolecular amination reactions, a FeBr2-metalated MOF selectively functionalized secondary benzylic and allylic C–H bonds. The intramolecular amination reactions utilizing organic azides as the nitrene source required the reduction of the FeBr2-metalated MOF with NaBHEt3 to generate the active catalyst. For both reactions, Fe or Zr leaching was less than 0.1%, and MOFs could be recycled and reused with no loss in catalytic activity. Furthermore, MOF catalysts were significantly more active than the corresponding homogeneous analogs. This work demonstrates the great potential of MOFs in generating highly active, recyclable, and reusable earth abundant metal catalysts for challenging organic transformations.
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Affiliation(s)
| | - Pengfei Ji
- Department of Chemistry
- University of Chicago
- Chicago
- USA
| | - Zekai Lin
- Department of Chemistry
- University of Chicago
- Chicago
- USA
| | - Ania Urban
- Department of Chemistry
- University of Chicago
- Chicago
- USA
| | - Wenbin Lin
- Department of Chemistry
- University of Chicago
- Chicago
- USA
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99
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Roudesly F, Oble J, Poli G. Metal-catalyzed C H activation/functionalization: The fundamentals. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.molcata.2016.06.020] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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100
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Webster-Gardiner MS, Piszel PE, Fu R, McKeown BA, Nielsen RJ, Goddard WA, Gunnoe TB. Electrophilic RhI catalysts for arene H/D exchange in acidic media: Evidence for an electrophilic aromatic substitution mechanism. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.molcata.2016.07.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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