1
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Zhou R, Ma L, Yang X, Cao J. Recent advances in visible-light photocatalytic deuteration reactions. Org Chem Front 2021. [DOI: 10.1039/d0qo01299h] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The recent advances in visible-light photocatalytic deuteration of X–H, C–halogen, CC, and other bonds for the synthesis of deuterium-labeled organic molecules have been summarized according to the type of bond deuterated in the reactions.
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Affiliation(s)
- Rong Zhou
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan
- China
| | - Lishuang Ma
- Department of Chemistry
- College of Science
- China University of Petroleum (East China)
- Qingdao
- China
| | - Xiaona Yang
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan
- China
| | - Jilei Cao
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan
- China
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2
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Zhang X, Zhou D, Wang X, Zhou J, Li J, Zhang M, Shen Y, Chu H, Qu Y. Overcoming the Deactivation of Pt/CNT by Introducing CeO2 for Selective Base-Free Glycerol-to-Glyceric Acid Oxidation. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05559] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xueqiong Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Dan Zhou
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Xiaojing Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Jian Zhou
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Jiefei Li
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Mingkai Zhang
- Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710049, China
| | - Yihong Shen
- PetroChina Petrochemical Research Institute, Beijing 102206, China
| | - Haibin Chu
- College of Chemistry and Chemical Engineering, Inner Mongolia Engineering and Technology Research Center for Catalytic Conversion and Utilization of Carbon Resource Molecules, Inner Mongolia University, Hohhot 010021, China
| | - Yongquan Qu
- Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710049, China
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3
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Keppler F, Barnes JD, Horst A, Bahlmann E, Luo J, Nadalig T, Greule M, Hartmann SC, Vuilleumier S. Chlorine Isotope Fractionation of the Major Chloromethane Degradation Processes in the Environment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:1634-1645. [PMID: 31880153 DOI: 10.1021/acs.est.9b06139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Chloromethane (CH3Cl) is an important source of chlorine in the stratosphere, but detailed knowledge of the magnitude of its sources and sinks is missing. Here, we measured the stable chlorine isotope fractionation (εCl) associated with the major abiotic and biotic CH3Cl sinks in the environment, namely, CH3Cl degradation by hydroxyl (·OH) and chlorine (·Cl) radicals in the troposphere and by reference bacteria Methylorubrum extorquens CM4 and Leisingera methylohalidivorans MB2 from terrestrial and marine environments, respectively. No chlorine isotope fractionation was detected for reaction of CH3Cl with ·OH and ·Cl radicals, whereas a large chlorine isotope fractionation (εCl) of -10.9 ± 0.7‰ (n = 3) and -9.4 ± 0.9 (n = 3) was found for CH3Cl degradation by M. extorquens CM4 and L. methylohalidivorans MB2, respectively. The large difference in chlorine isotope fractionation observed between tropospheric and bacterial degradation of CH3Cl provides an effective isotopic tool to characterize and distinguish between major abiotic and biotic processes contributing to the CH3Cl sink in the environment. Our findings demonstrate the potential of emerging triple-element isotopic approaches including chlorine to carbon and hydrogen analysis for the assessment of global cycling of organochlorines.
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Affiliation(s)
- Frank Keppler
- Institute of Earth Sciences , Heidelberg University , Im Neuenheimer Feld 236 , 69120 Heidelberg , Germany
| | - Jaime D Barnes
- Department of Geological Sciences , University of Texas , Austin , Texas 78712 , United States
| | - Axel Horst
- Department of Isotope Biogeochemistry , Helmholtz Centre for Environmental Research - UFZ , Permoserstr.15 , 04318 Leipzig , Germany
| | - Enno Bahlmann
- Leibniz Institute for Baltic Sea Research Warnemünde , Seestrasse 15 , 18119 Rostock , Germany
| | - Jing Luo
- UMR 7156 CNRS Génétique Moléculaire, Génomique, Microbiologie , Université de Strasbourg , 4 allée Konrad Roentgen , 67000 Strasbourg , France
| | - Thierry Nadalig
- UMR 7156 CNRS Génétique Moléculaire, Génomique, Microbiologie , Université de Strasbourg , 4 allée Konrad Roentgen , 67000 Strasbourg , France
| | - Markus Greule
- Institute of Earth Sciences , Heidelberg University , Im Neuenheimer Feld 236 , 69120 Heidelberg , Germany
| | - S Christoph Hartmann
- Institute of Earth Sciences , Heidelberg University , Im Neuenheimer Feld 236 , 69120 Heidelberg , Germany
- Max Planck Institute for Chemistry , Hahn-Meitner-Weg 1 , 55128 Mainz , Germany
| | - Stéphane Vuilleumier
- UMR 7156 CNRS Génétique Moléculaire, Génomique, Microbiologie , Université de Strasbourg , 4 allée Konrad Roentgen , 67000 Strasbourg , France
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4
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5
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Qiao L, Zhang L, Liu G, Huang Z. A highly efficient cobalt-catalyzed deuterogenolysis of diboron: Synthesis of deuterated pinacolborane and vinylboronates. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Elkin M, Scruse AC, Turlik A, Newhouse TR. Computational and Synthetic Investigation of Cationic Rearrangement in the Putative Biosynthesis of Justicane Triterpenoids. Angew Chem Int Ed Engl 2019; 58:1025-1029. [PMID: 30575223 PMCID: PMC6499374 DOI: 10.1002/anie.201810566] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/30/2018] [Indexed: 02/06/2023]
Abstract
A biomimetic cationic structural rearrangement of the oleanolic acid framework is reported for the gram-scale synthesis and structural reassignment of justicioside E aglycone. The mechanism of the putative biosynthetic rearrangement is investigated with kinetic, computational, and synthetic approaches. The precursor to rearrangement was accessed through two strategic advancements: (1) synthesis of a 1,3-diketone via oxidation of a β-silyl enone, and (2) diastereoselective 1,3-diketone reduction to form a syn-1,3-diol using SmI2 with PhSH as a key additive.
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Affiliation(s)
- Masha Elkin
- Department of Chemistry, Yale University, 225 Prospect Street, PO Box 20817, New Haven, CT, 06511, USA
| | - Anthony C Scruse
- Department of Chemistry, Yale University, 225 Prospect Street, PO Box 20817, New Haven, CT, 06511, USA
| | - Aneta Turlik
- Department of Chemistry, Yale University, 225 Prospect Street, PO Box 20817, New Haven, CT, 06511, USA
| | - Timothy R Newhouse
- Department of Chemistry, Yale University, 225 Prospect Street, PO Box 20817, New Haven, CT, 06511, USA
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7
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Puleo TR, Strong AJ, Bandar JS. Catalytic α-Selective Deuteration of Styrene Derivatives. J Am Chem Soc 2019; 141:1467-1472. [PMID: 30625273 DOI: 10.1021/jacs.8b12874] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We report an operationally simple protocol for the catalytic α-deuteration of styrenes. This process proceeds via the base-catalyzed reversible addition of methanol to styrenes in DMSO -d6 solvent. The concentration of methanol is shown to be critical for high yields and selectivities over multiple competing side reactions. The synthetic utility of α-deuterated styrenes for accessing deuterium-labeled chiral benzylic stereocenters is demonstrated.
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Affiliation(s)
- Thomas R Puleo
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States
| | - Alivia J Strong
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States
| | - Jeffrey S Bandar
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States
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8
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Elkin M, Scruse AC, Turlik A, Newhouse TR. Computational and Synthetic Investigation of Cationic Rearrangement in the Putative Biosynthesis of Justicane Triterpenoids. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Masha Elkin
- Department of ChemistryYale University 225 Prospect Street, PO Box 20817 New Haven CT 06511 USA
| | - Anthony C. Scruse
- Department of ChemistryYale University 225 Prospect Street, PO Box 20817 New Haven CT 06511 USA
| | - Aneta Turlik
- Department of ChemistryYale University 225 Prospect Street, PO Box 20817 New Haven CT 06511 USA
| | - Timothy R. Newhouse
- Department of ChemistryYale University 225 Prospect Street, PO Box 20817 New Haven CT 06511 USA
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9
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Hwang J, Han D, Oh JJ, Cheong M, Koo HJ, Lee JS, Kim HS. Efficient Non-Catalytic Carboxylation of Diamines to Cyclic Ureas Using 2-Pyrrolidone as a Solvent and a Promoter. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800945] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Junhyeok Hwang
- Department of Chemistry and Research Institute of Basic Sciences; Kyung Hee University; 26 Kyungheedaero, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Donggu Han
- Department of Chemistry and Research Institute of Basic Sciences; Kyung Hee University; 26 Kyungheedaero, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Jin Joo Oh
- Department of Chemistry and Research Institute of Basic Sciences; Kyung Hee University; 26 Kyungheedaero, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Minserk Cheong
- Department of Chemistry and Research Institute of Basic Sciences; Kyung Hee University; 26 Kyungheedaero, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Hyun-Joo Koo
- Department of Chemistry and Research Institute of Basic Sciences; Kyung Hee University; 26 Kyungheedaero, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Je Seung Lee
- Department of Chemistry and Research Institute of Basic Sciences; Kyung Hee University; 26 Kyungheedaero, Dongdaemun-gu Seoul 02447 Republic of Korea
| | - Hoon Sik Kim
- Department of Chemistry and Research Institute of Basic Sciences; Kyung Hee University; 26 Kyungheedaero, Dongdaemun-gu Seoul 02447 Republic of Korea
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10
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Kwan EE, Zeng Y, Besser HA, Jacobsen EN. Concerted nucleophilic aromatic substitutions. Nat Chem 2018; 10:917-923. [PMID: 30013193 PMCID: PMC6105541 DOI: 10.1038/s41557-018-0079-7] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 05/03/2018] [Indexed: 12/23/2022]
Abstract
Nucleophilic aromatic substitution (SNAr) is one of the most widely applied reaction classes in pharmaceutical and chemical research, providing a broadly useful platform for the modification of aromatic ring scaffolds. The generally accepted mechanism for SNAr reactions involves a two-step addition-elimination sequence via a discrete, non-aromatic Meisenheimer complex. Here we use 12C/13C kinetic isotope effect (KIE) studies and computational analyses to provide evidence that prototypical SNAr reactions in fact proceed through concerted mechanisms. The KIE measurements were made possible by a new technique that leverages the high sensitivity of 19F as an NMR nucleus to quantitate the degree of isotopic fractionation. This sensitive technique permits the measurement of KIEs on 10 mg of natural abundance material in one overnight acquisition. As a result, it provides a practical tool for performing detailed mechanistic analyses of reactions that form or break C-F bonds.
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Affiliation(s)
- Eugene E Kwan
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Yuwen Zeng
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Harrison A Besser
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Eric N Jacobsen
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA, USA.
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11
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Atzrodt J, Derdau V, Kerr WJ, Reid M. Methoden der C-H-Funktionalisierung für den Wasserstoffisotopenaustausch. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201708903] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jens Atzrodt
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry; Industriepark Höchst, G876 65926 Frankfurt Deutschland
| | - Volker Derdau
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry; Industriepark Höchst, G876 65926 Frankfurt Deutschland
| | - William J. Kerr
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow Scotland G1 1XL Großbritannien
| | - Marc Reid
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow Scotland G1 1XL Großbritannien
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12
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Atzrodt J, Derdau V, Kerr WJ, Reid M. C-H Functionalisation for Hydrogen Isotope Exchange. Angew Chem Int Ed Engl 2018; 57:3022-3047. [PMID: 29024330 DOI: 10.1002/anie.201708903] [Citation(s) in RCA: 307] [Impact Index Per Article: 51.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Indexed: 11/06/2022]
Abstract
The various applications of hydrogen isotopes (deuterium, D, and tritium, T) in the physical and life sciences demand a range of methods for their installation in an array of molecular architectures. In this Review, we describe recent advances in synthetic C-H functionalisation for hydrogen isotope exchange.
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Affiliation(s)
- Jens Atzrodt
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry, Industriepark Höchst, G876, 65926, Frankfurt, Germany
| | - Volker Derdau
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry, Industriepark Höchst, G876, 65926, Frankfurt, Germany
| | - 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
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13
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Atzrodt J, Derdau V, Kerr WJ, Reid M. Deuterium- und tritiummarkierte Verbindungen: Anwendungen in den modernen Biowissenschaften. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201704146] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jens Atzrodt
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry; Industriepark Höchst, G876 65926 Frankfurt Deutschland
| | - Volker Derdau
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry; Industriepark Höchst, G876 65926 Frankfurt Deutschland
| | - William J. Kerr
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow Scotland G1 1XL Großbritannien
| | - Marc Reid
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow Scotland G1 1XL Großbritannien
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14
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Atzrodt J, Derdau V, Kerr WJ, Reid M. Deuterium- and Tritium-Labelled Compounds: Applications in the Life Sciences. Angew Chem Int Ed Engl 2018; 57:1758-1784. [PMID: 28815899 DOI: 10.1002/anie.201704146] [Citation(s) in RCA: 407] [Impact Index Per Article: 67.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 07/27/2017] [Indexed: 12/19/2022]
Abstract
Hydrogen isotopes are unique tools for identifying and understanding biological and chemical processes. Hydrogen isotope labelling allows for the traceless and direct incorporation of an additional mass or radioactive tag into an organic molecule with almost no changes in its chemical structure, physical properties, or biological activity. Using deuterium-labelled isotopologues to study the unique mass-spectrometric patterns generated from mixtures of biologically relevant molecules drastically simplifies analysis. Such methods are now providing unprecedented levels of insight in a wide and continuously growing range of applications in the life sciences and beyond. Tritium (3 H), in particular, has seen an increase in utilization, especially in pharmaceutical drug discovery. The efforts and costs associated with the synthesis of labelled compounds are more than compensated for by the enhanced molecular sensitivity during analysis and the high reliability of the data obtained. In this Review, advances in the application of hydrogen isotopes in the life sciences are described.
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Affiliation(s)
- Jens Atzrodt
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry, Industriepark Höchst, G876, 65926, Frankfurt, Germany
| | - Volker Derdau
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry, Industriepark Höchst, G876, 65926, Frankfurt, Germany
| | - 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
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15
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Shahsavari HR, Babadi Aghakhanpour R, Fereidoonnezhad M. An in-depth investigation on the C–I bond activation by rollover cycloplatinated(ii) complexes bearing monodentate phosphane ligands: kinetic and kinetic isotope effect. NEW J CHEM 2018. [DOI: 10.1039/c7nj04159d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxidative addition reaction of MeI reagent to some cycloplatinated(ii) complexes was performed and kinetically investigated.
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Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | | | - Masood Fereidoonnezhad
- Department of Medicinal Chemistry
- School of Pharmacy
- Toxicology Research Center
- Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
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16
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Wang C, Tuninetti J, Wang Z, Zhang C, Ciganda R, Salmon L, Moya S, Ruiz J, Astruc D. Hydrolysis of Ammonia-Borane over Ni/ZIF-8 Nanocatalyst: High Efficiency, Mechanism, and Controlled Hydrogen Release. J Am Chem Soc 2017; 139:11610-11615. [DOI: 10.1021/jacs.7b06859] [Citation(s) in RCA: 231] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Changlong Wang
- Laboratoire de Chimie de Coordination, UPR CNRS 8241, Toulouse 31077 Cedex, France
- ISM, UMR CNRS N 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Jimena Tuninetti
- CIC biomaGUNE, Unidad Biosuperficies, Paseo Miramon No 182, Edif “C”, Donostia-San Sebastian 20009, Spain
| | - Zhao Wang
- Laboratoire
de Réactivité de Surface, Sorbonne Universités, UPMC Univ Paris 06, UMR CNRS 7197, 4 Place Jussieu, Tour 43-33, 3ème
étage, Case 178, Paris F-75252, France
| | - Chen Zhang
- Laboratoire de Chimie de Coordination, UPR CNRS 8241, Toulouse 31077 Cedex, France
| | - Roberto Ciganda
- ISM, UMR CNRS N 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Lionel Salmon
- Laboratoire de Chimie de Coordination, UPR CNRS 8241, Toulouse 31077 Cedex, France
| | - Sergio Moya
- CIC biomaGUNE, Unidad Biosuperficies, Paseo Miramon No 182, Edif “C”, Donostia-San Sebastian 20009, Spain
| | - Jaime Ruiz
- ISM, UMR CNRS N 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Didier Astruc
- ISM, UMR CNRS N 5255, Université de Bordeaux, Talence 33405 Cedex, France
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17
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Spooner J, Smith B, Weinberg N. Effect of high pressure on the topography of potential energy surfaces. CAN J CHEM 2016. [DOI: 10.1139/cjc-2016-0295] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Properties and reactivity of chemical compounds change dramatically at elevated pressures. Since kinetics and mechanisms of condensed-phase reactions are described in terms of their potential energy (PESs) or Gibbs energy (GESs) surfaces, chemical effects of high pressure can be assessed through analysis of pressure-induced deformations of GESs of solvated reaction systems. We discuss general trends expected for such changes and use quantum mechanical calculations to construct PESs of compressed species for hydrogen and methyl transfer reactions.
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Affiliation(s)
- Jacob Spooner
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Brandon Smith
- Department of Chemistry, University College of the Fraser Valley, Abbotsford, BC V2S 7M8, Canada
| | - Noham Weinberg
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, University College of the Fraser Valley, Abbotsford, BC V2S 7M8, Canada
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18
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Li Z, He T, Liu L, Chen W, Zhang M, Wu G, Chen P. Covalent triazine framework supported non-noble metal nanoparticles with superior activity for catalytic hydrolysis of ammonia borane: from mechanistic study to catalyst design. Chem Sci 2016; 8:781-788. [PMID: 28451227 PMCID: PMC5299936 DOI: 10.1039/c6sc02456d] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 08/23/2016] [Indexed: 12/23/2022] Open
Abstract
Development of non-noble metal catalysts with similar activity and stability to noble metals is of significant importance in the conversion and utilization of clean energies.
Development of non-noble metal catalysts with similar activity and stability to noble metals is of significant importance in the conversion and utilization of clean energy. The catalytic hydrolysis of ammonia borane (AB) to produce 3 equiv. of H2, as an example of where noble metal catalysts significantly outperform their non-noble peers, serves as an excellent test site for the design and optimization of non-noble metal catalysts. Our kinetic isotopic effect measurements reveal, for the first time, that the kinetic key step of the hydrolysis is the activation of H2O. Deducibly, a transition metal with an optimal electronic structure that bonds H2O and –OH in intermediate strengths would favor the hydrolysis of AB. By employing a covalent triazine framework (CTF), a newly developed porous material capable of donating electrons through the lone pairs on N, the electron densities of nano-sized Co and Ni supported on CTF are markedly increased, as well as their catalytic activities. Specifically, Co/CTF exhibits a total turnover frequency of 42.3 molH2 molCo–1 min–1 at room temperature, which is superior to all peer non-noble metal catalysts ever reported and even comparable to some noble metal catalysts.
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Affiliation(s)
- Zhao Li
- Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China . .,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Teng He
- Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China .
| | - Lin Liu
- Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China .
| | - Weidong Chen
- Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China . .,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Miao Zhang
- Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China . .,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Guotao Wu
- Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China .
| | - Ping Chen
- Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China . .,State Key Laboratory of Catalysis and Collaborative Innovation Centre of Chemistry for Energy Materials , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian , 116023 , China
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19
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Secondary kinetic deuterium isotope effect in oxidative addition reaction of cycloplatinated(II) complexes with MeI. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.06.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Atzrodt J, Derdau V, Kerr WJ, Reid M, Rojahn P, Weck R. Expanded applicability of iridium(I) NHC/phosphine catalysts in hydrogen isotope exchange processes with pharmaceutically-relevant heterocycles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.029] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Marlier JF, Fogle EJ, Redman RL, Stillman AD, Denison MA, Robins LI. A mechanistic study of thioester hydrolysis with heavy atom kinetic isotope effects. J Org Chem 2015; 80:1905-8. [PMID: 25545007 DOI: 10.1021/jo502472m] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The carbonyl-C, carbonyl-O, and leaving-S kinetic isotope effects (KIEs) were determined for the hydrolysis of formylthiocholine. Under acidic conditions, (13)k(obs) = 1.0312, (18)k(obs) = 0.997, and (34)k(obs) = 0.995; for neutral conditions, (13)k(obs) = 1.022, (18)k(obs) = 1.010, and (34)k(obs) = 0.996; and for alkaline conditions, (13)k(obs) = 1.0263, (18)k(obs) = 0.992, and (34)k(obs) = 1.000. The observed KIEs provided helpful insights into a qualitative description of the bond orders in the transition state structure.
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Affiliation(s)
- John F Marlier
- University of Washington-Bothell , Bothell, Washington 98011, United States
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Robins LI, Fogle EJ, Marlier JF. Mechanistic investigations of the hydrolysis of amides, oxoesters and thioesters via kinetic isotope effects and positional isotope exchange. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2014; 1854:1756-67. [PMID: 25543107 DOI: 10.1016/j.bbapap.2014.12.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 12/12/2014] [Accepted: 12/15/2014] [Indexed: 11/28/2022]
Abstract
The hydrolysis of amides, oxoesters and thioesters is an important reaction in both organic chemistry and biochemistry. Kinetic isotope effects (KIEs) are one of the most important physical organic methods for determining the most likely transition state structure and rate-determining step of these reaction mechanisms. This method induces a very small change in reaction rates, which, in turn, results in a minimum disturbance of the natural mechanism. KIE studies were carried out on both the non-enzymatic and the enzyme-catalyzed reactions in an effort to compare both types of mechanisms. In these studies the amides and esters of formic acid were chosen because this molecular structure allowed development of methodology to determine heavy-atom solvent (nucleophile) KIEs. This type of isotope effect is difficult to measure, but is rich in mechanistic information. Results of these investigations point to transition states with varying degrees of tetrahedral character that fit a classical stepwise mechanism. This article is part of a special issue entitled: Enzyme Transition States from Theory and Experiment.
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Affiliation(s)
- Lori I Robins
- Department of Biochemistry, University of Washington-Bothell, Bothell, WA 98011, USA
| | - Emily J Fogle
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - John F Marlier
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA 93407, USA.
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23
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Kinetico-mechanistic studies on CX (X=H, F, Cl, Br, I) bond activation reactions on organoplatinum(II) complexes. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.06.010] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Aseman MD, Rashidi M, Nabavizadeh SM, Puddephatt RJ. Secondary Kinetic Isotope Effects in Oxidative Addition of Benzyl Bromide to Dimethylplatinum(II) Complexes. Organometallics 2013. [DOI: 10.1021/om400084b] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | - Mehdi Rashidi
- Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
| | | | - Richard J. Puddephatt
- Department
of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7
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25
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Thullner M, Fischer A, Richnow HH, Wick LY. Influence of mass transfer on stable isotope fractionation. Appl Microbiol Biotechnol 2012; 97:441-52. [PMID: 23143531 DOI: 10.1007/s00253-012-4537-7] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 10/19/2012] [Accepted: 10/22/2012] [Indexed: 11/27/2022]
Abstract
Biodegradation of contaminants is a common remediation strategy for subsurface environments. To monitor the success of such remediation means a quantitative assessment of biodegradation at the field scale is required. Nevertheless, the reliable quantification of the in situ biodegradation process it is still a major challenge. Compound-specific stable isotope analysis has become an established method for the qualitative analysis of biodegradation in the field and this method is also proposed for a quantitative analysis. However, to use stable isotope data to obtain quantitative information on in situ biodegradation requires among others knowledge on the influence of mass transfer processes on the observed stable isotope fractionation. This paper reviews recent findings on the influence of mass transfer processes on stable isotope fractionation and on the quantitative interpretation of isotope data. Focus will be given on small-scale mass transfer processes controlling the bioavailability of contaminants. Such bioavailability limitations are known to affect the biodegradation rate and have recently been shown to affect stable isotope fractionation, too. Theoretical as well as experimental studies addressing the link between bioavailability and stable isotope fractionation are reviewed and the implications for assessing biodegradation in the field are discussed.
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Affiliation(s)
- Martin Thullner
- Department of Environmental Microbiology, UFZ-Helmholtz Centre for Environmental Research, Permoserstr. 15, 30418 Leipzig, Germany.
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Nabavizadeh SM, Habibzadeh S, Rashidi M, Puddephatt RJ. Oxidative Addition of Ethyl Iodide to a Dimethylplatinum(II) Complex: Unusually Large Kinetic Isotope Effects and Their Transition-State Implications. Organometallics 2010. [DOI: 10.1021/om100810t] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Sepideh Habibzadeh
- Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Mehdi Rashidi
- Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
- Department of Chemistry, University of Western Ontario, London, Canada N6A 5B7
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27
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Habibzadeh S, Rashidi M, Nabavizadeh SM, Mahmoodi L, Hosseini FN, Puddephatt RJ. Steric and Solvent Effects on the Secondary Kinetic α-Deuterium Isotope Effects in the Reaction of Methyl Iodide with Organoplatinum(II) Complexes: Application of a Second-Order Technique in Measuring the Rates of Rapid Processes. Organometallics 2009. [DOI: 10.1021/om900778u] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Sepideh Habibzadeh
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Mehdi Rashidi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | | | - Leila Mahmoodi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | | | - Richard J. Puddephatt
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7
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