1
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Li L, Hilt G. Indium Tribromide-Catalysed Transfer-Hydrogenation: Expanding the Scope of the Hydrogenation and of the Regiodivergent DH or HD Addition to Alkenes. Chemistry 2021; 27:11221-11225. [PMID: 34048092 PMCID: PMC8453857 DOI: 10.1002/chem.202101259] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Indexed: 01/09/2023]
Abstract
The transfer‐hydrogenation as well as the regioselective and regiodivergent addition of H−D from regiospecific deuterated dihydroaromatic compounds to a variety of 1,1‐di‐ and trisubstituted alkenes was realised with InBr3 in dichloro(m)ethane. In comparison with the previously reported BF3⋅Et2O‐catalysed process, electron‐deficient aryl‐substituents can be applied reliably and thereby several restrictions could be lifted, and new types of substrates could be transformed successfully in hydrodeuterogenation as well as deuterohydrogenation transfer‐hydrogenation reactions.
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Affiliation(s)
- Luomo Li
- Institut für Chemie, Oldenburg University, Carl-von-Ossietzky-Str. 9-11, 26111, Oldenburg, Germany
| | - Gerhard Hilt
- Institut für Chemie, Oldenburg University, Carl-von-Ossietzky-Str. 9-11, 26111, Oldenburg, Germany
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2
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Mitschke N, Eruçar G, Fsadni MH, Roberts AR, Sadeghi MM, Golding BT, Christoffers J, Wilkes H. Enantiopure 2,9‐Dideuterodecane – Preparation and Proof of Enantiopurity. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nico Mitschke
- Institut für Chemie Carl von Ossietzky Universität Oldenburg 26111 Oldenburg Germany
- Institut für Chemie und Biologie des Meeres (ICBM) Carl von Ossietzky Universität Oldenburg 26111 Oldenburg Germany
| | - Gülsera Eruçar
- Institut für Chemie Carl von Ossietzky Universität Oldenburg 26111 Oldenburg Germany
| | - Miriam H. Fsadni
- School of Natural & Environmental Sciences, Bedson Building Newcastle University NE1 7RU Newcastle upon Tyne UK
| | - Amy R. Roberts
- School of Natural & Environmental Sciences, Bedson Building Newcastle University NE1 7RU Newcastle upon Tyne UK
| | - Majid M. Sadeghi
- School of Natural & Environmental Sciences, Bedson Building Newcastle University NE1 7RU Newcastle upon Tyne UK
| | - Bernard T. Golding
- School of Natural & Environmental Sciences, Bedson Building Newcastle University NE1 7RU Newcastle upon Tyne UK
| | - Jens Christoffers
- Institut für Chemie Carl von Ossietzky Universität Oldenburg 26111 Oldenburg Germany
| | - Heinz Wilkes
- Institut für Chemie und Biologie des Meeres (ICBM) Carl von Ossietzky Universität Oldenburg 26111 Oldenburg Germany
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3
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Vang ZP, Hintzsche SJ, Clark JR. Catalytic Transfer Deuteration and Hydrodeuteration: Emerging Techniques to Selectively Transform Alkenes and Alkynes to Deuterated Alkanes. Chemistry 2021; 27:9988-10000. [PMID: 33979460 DOI: 10.1002/chem.202100635] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Indexed: 12/28/2022]
Abstract
Increasing demand for deuterium-labeled organic molecules has spurred a renewed interest in selective methods for deuterium installation. Catalytic transfer deuteration and transfer hydrodeuteration are emerging as powerful techniques for the selective incorporation of deuterium into small molecules. These reactions not only obviate the use of D2 gas and pressurized reaction setups but provide new opportunities for selectively installing deuterium into small molecules. Commercial or readily synthesized deuterium donors are typically employed as easy-to-handle reagents for transfer deuteration and hydrodeuteration reactions. In this minireview, recent advances in the catalytic transfer deuteration and hydrodeuteration of alkenes and alkynes for the selective synthesis of deuterated alkanes will be discussed.
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Affiliation(s)
- Zoua Pa Vang
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin, 53233-1881, USA
| | - Samuel J Hintzsche
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin, 53233-1881, USA
| | - Joseph R Clark
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin, 53233-1881, USA
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4
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Drozdowska M, Tromans J, Zhang B, Jarling R, Wilkes H, Golding BT. Defining Pathways of Anaerobic Alkane Oxidation: Synthesis of Enantiomers of 4‐Methylalkanoic Acids and (2‐Methylalkyl)malonic Acids. ChemistrySelect 2021. [DOI: 10.1002/slct.202100415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marta Drozdowska
- School of Natural and Environmental Sciences – Chemistry Bedson Building Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Jay Tromans
- School of Natural and Environmental Sciences – Chemistry Bedson Building Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Bian Zhang
- BiBerChem Research Limited The Biosphere Drayman's Way, Newcastle Helix, Corporation Street Newcastle upon Tyne NE4 5BX UK
| | - René Jarling
- Organische Geochemie Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum Haus B228, Telegrafenberg 14473 Potsdam Germany
- Organic Geochemistry Institute for Chemistry and Biology of the Marine Environment (ICBM) Carl von Ossietzky University Oldenburg Carl-von-Ossietzky-Straße 9–11 D-26111 Oldenburg Germany
| | - Heinz Wilkes
- Organische Geochemie Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum Haus B228, Telegrafenberg 14473 Potsdam Germany
- Organic Geochemistry Institute for Chemistry and Biology of the Marine Environment (ICBM) Carl von Ossietzky University Oldenburg Carl-von-Ossietzky-Straße 9–11 D-26111 Oldenburg Germany
| | - Bernard T. Golding
- School of Natural and Environmental Sciences – Chemistry Bedson Building Newcastle University Newcastle upon Tyne NE1 7RU UK
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5
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Mitschke N, Christoffers J, Wilkes H. A Straightforward Synthesis of Trideuterated α‐Terpinene for Mechanistic Studies. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nico Mitschke
- Institut für Chemie und Biologie des Meeres (ICBM) Carl von Ossietzky Universität Oldenburg 26111 Oldenburg Germany
| | - Jens Christoffers
- Institut für Chemie Carl von Ossietzky Universität Oldenburg 26111 Oldenburg Germany
| | - Heinz Wilkes
- Institut für Chemie und Biologie des Meeres (ICBM) Carl von Ossietzky Universität Oldenburg 26111 Oldenburg Germany
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6
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Küppers J, Mitschke N, Heyen S, Rabus R, Wilkes H, Christoffers J. Metabolites of the Anaerobic Degradation of n-Hexane by Denitrifying Betaproteobacterium Strain HxN1. Chembiochem 2020; 21:373-380. [PMID: 31294892 PMCID: PMC7028053 DOI: 10.1002/cbic.201900375] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Indexed: 11/05/2022]
Abstract
The constitutions of seven metabolites formed during anaerobic degradation of n-hexane by the denitrifying betaproteobacterium strain HxN1 were elucidated by comparison of their GC and MS data with those of synthetic reference standards. The synthesis of 4-methyloctanoic acid derivatives was accomplished by the conversion of 2-methylhexanoyl chloride with Meldrum's acid. The β-oxoester was reduced with NaBH4 , the hydroxy group was eliminated, and the double bond was displaced to yield the methyl esters of 4-methyl-3-oxooctanoate, 3-hydroxy-4-methyloctanoate, (E)-4-methyl-2-octenoate, and (E)- and (Z)-4-methyl-3-octenoate. The methyl esters of 2-methyl-3-oxohexanoate and 3-hydroxy-2-methylhexanoate were similarly prepared from butanoyl chloride and Meldrum's acid. However, methyl (E)-2-methyl-2-hexenoate was prepared by Horner-Wadsworth-Emmons reaction, followed by isomerization to methyl (E)-2-methyl-3-hexenoate. This investigation, with the exception of 4-methyl-3-oxooctanoate, which was not detectable in the cultures, completes the unambiguous identification of all intermediates of the anaerobic biodegradation of n-hexane to 2-methyl-3-oxohexanoyl coenzyme A (CoA), which is then thiolytically cleaved to butanoyl-CoA and propionyl-CoA; these two metabolites are further transformed according to established pathways.
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Affiliation(s)
- Julian Küppers
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, 26111, Oldenburg, Germany
| | - Nico Mitschke
- Institut für Chemie und Biologie des Meeres (ICBM), Carl von Ossietzky Universität Oldenburg, 26111, Oldenburg, Germany
| | - Simone Heyen
- Institut für Chemie und Biologie des Meeres (ICBM), Carl von Ossietzky Universität Oldenburg, 26111, Oldenburg, Germany
| | - Ralf Rabus
- Institut für Chemie und Biologie des Meeres (ICBM), Carl von Ossietzky Universität Oldenburg, 26111, Oldenburg, Germany
| | - Heinz Wilkes
- Institut für Chemie und Biologie des Meeres (ICBM), Carl von Ossietzky Universität Oldenburg, 26111, Oldenburg, Germany
| | - Jens Christoffers
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, 26111, Oldenburg, Germany
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7
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Küppers J, Rabus R, Wilkes H, Christoffers J. Optically Active 1-Deuterio-1-phenylethane - Preparation and Proof of Enantiopurity. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Julian Küppers
- Institut für Chemie; Carl von Ossietzky Universität Oldenburg; 26111 Oldenburg Germany
| | - Ralf Rabus
- Institut für Chemie und Biologie des Meeres (ICBM); Carl von Ossietzky Universität Oldenburg; 26111 Oldenburg Germany
| | - Heinz Wilkes
- Institut für Chemie und Biologie des Meeres (ICBM); Carl von Ossietzky Universität Oldenburg; 26111 Oldenburg Germany
| | - Jens Christoffers
- Institut für Chemie; Carl von Ossietzky Universität Oldenburg; 26111 Oldenburg Germany
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8
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Seyhan D, Friedrich P, Szaleniec M, Hilberg M, Buckel W, Golding BT, Heider J. Stereochemischer Verlauf der enzymatischen Synthese von Benzylsuccinat mit chiral markiertem Toluol. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Deniz Seyhan
- Laboratorium für Mikrobielle Biochemie und Synmikro-Zentrum für synthetische Mikrobiologie; Philipps Universität Marburg; 35043 Marburg an der Lahn Deutschland
| | - Peter Friedrich
- School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU Großbritannien
| | - Maciej Szaleniec
- Jerzy Haber Institute of Catalysis and Surface Chemistry; Polish Academy of Science; 30-239 Krakau Polen
| | - Markus Hilberg
- Laboratorium für Mikrobielle Biochemie und Synmikro-Zentrum für synthetische Mikrobiologie; Philipps Universität Marburg; 35043 Marburg an der Lahn Deutschland
| | - Wolfgang Buckel
- Max-Planck-Institut für terrestrische Mikrobiologie; 35043 Marburg an der Lahn Deutschland
| | - Bernard T. Golding
- School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU Großbritannien
| | - Johann Heider
- Laboratorium für Mikrobielle Biochemie und Synmikro-Zentrum für synthetische Mikrobiologie; Philipps Universität Marburg; 35043 Marburg an der Lahn Deutschland
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9
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Seyhan D, Friedrich P, Szaleniec M, Hilberg M, Buckel W, Golding BT, Heider J. Elucidating the Stereochemistry of Enzymatic Benzylsuccinate Synthesis with Chirally Labeled Toluene. Angew Chem Int Ed Engl 2016; 55:11664-7. [PMID: 27503670 DOI: 10.1002/anie.201605197] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/01/2016] [Indexed: 11/08/2022]
Abstract
Benzylsuccinate synthase is a glycyl radical enzyme that initiates anaerobic toluene metabolism by adding fumarate to the methyl group of toluene to yield (R)-benzylsuccinate. To investigate whether the reaction occurs with retention or inversion of configuration at the methyl group of toluene, we synthesized both enantiomers of chiral toluene with all three H isotopes in their methyl groups. The chiral toluenes were converted into benzylsuccinates preferentially containing (2) H and (3) H at their benzylic C atoms, owing to a kinetic isotope effect favoring hydrogen abstraction from the methyl groups. The configuration of the products was analyzed by enzymatic CoA-thioester synthesis and stereospecific oxidation using enzymes involved in benzylsuccinate degradation. Assessment of the configurations of the benzylsuccinate isomers based on loss or retention of tritium showed that inversion of configuration at the methyl group occurs when the chiral toluenes react with fumarate.
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Affiliation(s)
- Deniz Seyhan
- Laboratorium für Mikrobielle Biochemie and Synmikro-Zentrum für synthetische Mikrobiologie, Philipps Universität Marburg, 35043, Marburg an der Lahn, Germany
| | - Peter Friedrich
- School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Maciej Szaleniec
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Science, 30-239, Kraków, Poland
| | - Markus Hilberg
- Laboratorium für Mikrobielle Biochemie and Synmikro-Zentrum für synthetische Mikrobiologie, Philipps Universität Marburg, 35043, Marburg an der Lahn, Germany
| | - Wolfgang Buckel
- Max-Planck-Institut für terrestrische Mikrobiologie, 35043, Marburg an der Lahn, Germany
| | - Bernard T Golding
- School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Johann Heider
- Laboratorium für Mikrobielle Biochemie and Synmikro-Zentrum für synthetische Mikrobiologie, Philipps Universität Marburg, 35043, Marburg an der Lahn, Germany.
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10
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Buckel W. Die bakterielle Methanogenese verläuft radikalisch. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Buckel W. Bacterial methanogenesis proceeds by a radical mechanism. Angew Chem Int Ed Engl 2013; 52:8507-9. [PMID: 23852991 DOI: 10.1002/anie.201304593] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Wolfgang Buckel
- Fachbereich Biologie - Mikrobiologie and Synmikro, Philipps-Universität, 35032 Marburg, Germany.
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