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Battistella B, Lohmiller T, Cula B, Hildebrandt P, Kuhlmann U, Dau H, Mebs S, Ray K. A New Thiolate-Bound Dimanganese Cluster as a Structural and Functional Model for Class Ib Ribonucleotide Reductases. Angew Chem Int Ed Engl 2023; 62:e202217076. [PMID: 36583430 DOI: 10.1002/anie.202217076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/24/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
In class Ib ribonucleotide reductases (RNRs) a dimanganese(II) cluster activates superoxide (O2 ⋅- ) rather than dioxygen (O2 ), to access a high valent MnIII -O2 -MnIV species, responsible for the oxidation of tyrosine to tyrosyl radical. In a biomimetic approach, we report the synthesis of a thiolate-bound dimanganese complex [MnII 2 (BPMT)(OAc)2 ](ClO)4 (BPMT=(2,6-bis{[bis(2-pyridylmethyl)amino]methyl}-4-methylthiophenolate) (1) and its reaction with O2 ⋅- to form a [(BPMT)MnO2 Mn]2+ complex 2. Resonance Raman investigation revealed the presence of an O-O bond in 2, while EPR analysis displayed a 16-line St =1/2 signal at g=2 typically associated with a MnIII MnIV core, as detected in class Ib RNRs. Unlike all other previously reported Mn-O2 -Mn complexes, generated by O2 ⋅- activation at Mn2 centers, 2 proved to be a capable electrophilic oxidant in aldehyde deformylation and phenol oxidation reactions, rendering it one of the best structural and functional models for class Ib RNRs.
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Affiliation(s)
- Beatrice Battistella
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Thomas Lohmiller
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany.,EPR4Energy Joint Lab, Department Spins in Energy Conversion and Quantum Information Science, Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 16, 12489, Berlin, Germany
| | - Beatrice Cula
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Peter Hildebrandt
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Uwe Kuhlmann
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Holger Dau
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Stefan Mebs
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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2
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Mondal S, Sahu K, Patra B, Jena S, Biswal HS, Kar S. A new synthesis of porphyrins via a putative trans-manganese(iv)-dihydroxide intermediate. Dalton Trans 2020; 49:1424-1432. [PMID: 31915769 DOI: 10.1039/c9dt03573g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method for the synthesis of meso-substituted porphyrins was developed. In this two-step methodology, the first step involves the condensation of pyrroles/dipyrromethanes with aldehydes in a water-methanol mixture under acidic conditions. The second step involves manganese induced cyclization followed by oxidation via PhIO/O2. This methodology has been useful for the synthesis of a wide range of trans-A2B2 porphyrins and also symmetric porphyrins in moderate to good yields. A detailed investigation of the manganese induced cyclization reaction has allowed us to characterize a Mn-porphyrinogen complex. A series of analytical and spectroscopic techniques and DFT calculations have led us to the conclusion that the putative intermediate species are trans-manganese(iv)-dihydroxide complexes. EPR and magnetic susceptibility measurements helped us to assign the oxidation state of the manganese complexes in their native state. The assumption of trans-manganese(iv)-dihydroxide as the true intermediate for this porphyrin synthesis has been authenticated via in situ UV-Vis experiments. This new methodology is certainly different from other previously reported methodologies in many aspects and most importantly these reactions can be easily performed on a gram scale for the synthesis of porphyrins.
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Affiliation(s)
- Sruti Mondal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, 752050, India.
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3
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Barman P, Cantú Reinhard FG, Bagha UK, Kumar D, Sastri CV, de Visser SP. Hydrogen by Deuterium Substitution in an Aldehyde Tunes the Regioselectivity by a Nonheme Manganese(III)-Peroxo Complex. Angew Chem Int Ed Engl 2019; 58:10639-10643. [PMID: 31108009 DOI: 10.1002/anie.201905416] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Indexed: 12/31/2022]
Abstract
Mononuclear nonheme MnIII -peroxo complexes are important intermediates in biology, and take part in oxygen activation by photosystem II. Herein, we present work on two isomeric biomimetic side-on MnIII -peroxo intermediates with bispidine ligand system and reactivity patterns with aldehydes. The complexes are characterized with UV/Vis and mass spectrometric techniques and reaction rates with cyclohexane carboxaldehyde (CCA) are measured. The reaction gives an unusual regioselectivity switch from aliphatic to aldehyde hydrogen atom abstraction upon deuteration of the substrate, leading to the corresponding carboxylic acid product for the latter, while the former gives a deformylation reaction. Mechanistic details are established from kinetic isotope effect studies and density functional theory calculations. Thus, replacement of C-H by C-D raises the hydrogen atom abstraction barriers and enables a regioselectivity switch to a competitive pathway that is slightly higher in energy.
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Affiliation(s)
- Prasenjit Barman
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Fabián G Cantú Reinhard
- Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
| | - Umesh Kumar Bagha
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Devesh Kumar
- Department of Physics, School of Physical and Decision Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, India
| | - Chivukula V Sastri
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Sam P de Visser
- Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
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4
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Barman P, Cantú Reinhard FG, Bagha UK, Kumar D, Sastri CV, de Visser SP. Hydrogen by Deuterium Substitution in an Aldehyde Tunes the Regioselectivity by a Nonheme Manganese(III)–Peroxo Complex. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905416] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Prasenjit Barman
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati Assam 781039 India
| | - Fabián G. Cantú Reinhard
- Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical ScienceThe University of Manchester 131 Princess Street Manchester M1 7DN UK
| | - Umesh Kumar Bagha
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati Assam 781039 India
| | - Devesh Kumar
- Department of PhysicsSchool of Physical and Decision SciencesBabasaheb Bhimrao Ambedkar University Lucknow 226025 India
| | - Chivukula V. Sastri
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati Assam 781039 India
| | - Sam P. de Visser
- Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical ScienceThe University of Manchester 131 Princess Street Manchester M1 7DN UK
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Magherusan AM, Kal S, Nelis DN, Doyle LM, Farquhar ER, Que L, McDonald AR. A Mn II Mn III -Peroxide Complex Capable of Aldehyde Deformylation. Angew Chem Int Ed Engl 2019; 58:5718-5722. [PMID: 30830996 DOI: 10.1002/anie.201900717] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/27/2019] [Indexed: 11/07/2022]
Abstract
Ribonucleotide reductases (RNRs) are essential enzymes required for DNA synthesis. In class Ib Mn2 RNRs superoxide (O2 .- ) was postulated to react with the MnII 2 core to yield a MnII MnIII -peroxide moiety. The reactivity of complex 1 ([MnII 2 (O2 CCH3 )2 (BPMP)](ClO4 ), where HBPMP=2,6-bis{[(bis(2-pyridylmethyl)amino]methyl}-4-methylphenol) towards O2 .- was investigated at -90 °C, generating a metastable species, 2. The electronic absorption spectrum of 2 displayed features (λmax =440, 590 nm) characteristic of a MnII MnIII -peroxide species, representing just the second example of such. Electron paramagnetic resonance and X-ray absorption spectroscopies, and mass spectrometry supported the formulation of 2 as a MnII MnIII -peroxide complex. Unlike all other previously reported Mn2 -peroxides, which were unreactive, 2 proved to be a capable oxidant in aldehyde deformylation. Our studies provide insight into the mechanism of O2 -activation in Class Ib Mn2 RNRs, and the highly reactive intermediates in their catalytic cycle.
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Affiliation(s)
- Adriana M Magherusan
- School of Chemistry, Trinity College Dublin, The University of Dublin, College Green, Dublin 2, Ireland
| | - Subhasree Kal
- Department of Chemistry and Centre for Metals in Biocatalysis, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN, 55455, USA
| | - Daniel N Nelis
- School of Chemistry, Trinity College Dublin, The University of Dublin, College Green, Dublin 2, Ireland
| | - Lorna M Doyle
- School of Chemistry, Trinity College Dublin, The University of Dublin, College Green, Dublin 2, Ireland
| | - Erik R Farquhar
- Case Western Reserve University Centre for Synchrotron Biosciences, National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Lawrence Que
- Department of Chemistry and Centre for Metals in Biocatalysis, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN, 55455, USA
| | - Aidan R McDonald
- School of Chemistry, Trinity College Dublin, The University of Dublin, College Green, Dublin 2, Ireland
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7
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Wang L, Cantú Reinhard FG, Philouze C, Demeshko S, de Visser SP, Meyer F, Gennari M, Duboc C. Solvent‐ and Halide‐Induced (Inter)conversion between Iron(II)‐Disulfide and Iron(III)‐Thiolate Complexes. Chemistry 2018; 24:11973-11982. [DOI: 10.1002/chem.201801377] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Indexed: 02/01/2023]
Affiliation(s)
- Lianke Wang
- Université Grenoble AlpesUMR CNRS 5250Département de Chimie Moléculaire 38000 Grenoble France
| | - Fabián G. Cantú Reinhard
- Manchester Institute of BiotechnologySchool of Chemical Engineering and Analytical ScienceThe University of Manchester 131 Princess Street Manchester M1 7DN United Kingdom
| | - Christian Philouze
- Université Grenoble AlpesUMR CNRS 5250Département de Chimie Moléculaire 38000 Grenoble France
| | - Serhiy Demeshko
- Institut für Anorganische ChemieUniversität Göttingen Tammannstrasse 4 D-37077 Göttingen Germany
| | - Sam P. de Visser
- Manchester Institute of BiotechnologySchool of Chemical Engineering and Analytical ScienceThe University of Manchester 131 Princess Street Manchester M1 7DN United Kingdom
| | - Franc Meyer
- Institut für Anorganische ChemieUniversität Göttingen Tammannstrasse 4 D-37077 Göttingen Germany
| | - Marcello Gennari
- Université Grenoble AlpesUMR CNRS 5250Département de Chimie Moléculaire 38000 Grenoble France
| | - Carole Duboc
- Université Grenoble AlpesUMR CNRS 5250Département de Chimie Moléculaire 38000 Grenoble France
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8
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Kang Y, Wang F, Reinhard FGC, Xia C, de Visser SP, Wang Y. Can Manganese(III)-Iodosylarene Act as an Oxidant Alongside High-Valent Manganese(V)-Oxo Complexes? ChemistrySelect 2018. [DOI: 10.1002/slct.201800678] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yiran Kang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Fang Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 China
| | - Fabián G. Cantú Reinhard
- Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science; The University of Manchester; 131 Princess Street Manchester M1 7DN United Kingdom
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 China
| | - Sam P. de Visser
- Manchester Institute of Biotechnology and School of Chemical Engineering and Analytical Science; The University of Manchester; 131 Princess Street Manchester M1 7DN United Kingdom
| | - Yong Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Suzhou Research Institute of LICP; Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 China
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