1
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Lourenço DL, Fernandes AC. Reduction of sulfoxides catalyzed by the commercially available manganese complex MnBr(CO) 5. Org Biomol Chem 2024; 22:3746-3751. [PMID: 38652042 DOI: 10.1039/d4ob00204k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
A new methodology for the reduction of a wide variety of aliphatic and aromatic sulfoxides catalyzed by the air-stable, cheap and commercially available manganese catalyst MnBr(CO)5 with excellent yields is reported in this work. The catalytic system MnBr(CO)5/PhSiH3 is highly chemoselective, allowing the effective reduction of the SO bond in the presence of different functional groups.
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Affiliation(s)
- Daniel L Lourenço
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Ana C Fernandes
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
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2
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Sarkar N, Kumar Sahoo R, Nembenna S. Aluminium-Catalyzed Selective Hydroboration of Esters and Epoxides to Alcohols: C-O Bond Activation. Chemistry 2023; 29:e202203023. [PMID: 36226774 DOI: 10.1002/chem.202203023] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Indexed: 11/07/2022]
Abstract
In this work, the molecular aluminium dihydride complex bearing an N, N'-chelated conjugated bis-guanidinate (CBG) ligand is used as a catalyst for reducing a wide range of aryl and alkyl esters with good tolerance of alkene (C=C), alkyne (C≡C), halides (Cl, Br, I and F), nitrile (C≡N), and nitro (NO2 ) functionalities. Further, we investigated the catalytic application of aluminium dihydride in the C-O bond cleavage of alkyl and aryl epoxides into corresponding branched Markovnikov ring-opening products. In addition, the chemoselective intermolecular reduction of esters over other reducible functional groups, such as amides and alkenes, has been established. Intermediates are isolated and characterized by NMR and HRMS studies, which confirm the probable catalytic cycles for the hydroboration of esters and epoxides.
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Affiliation(s)
- Nabin Sarkar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar, 752050, India
| | - Rajata Kumar Sahoo
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar, 752050, India
| | - Sharanappa Nembenna
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar, 752050, India
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3
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Shennan BDA, Berheci D, Crompton JL, Davidson TA, Field JL, Williams BA, Dixon DJ. Branching out: redox strategies towards the synthesis of acyclic α-tertiary ethers. Chem Soc Rev 2022; 51:5878-5929. [PMID: 35770619 DOI: 10.1039/d1cs00669j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Acyclic α-tertiary ethers represent a highly prevalent functionality, common to high-value bioactive molecules, such as pharmaceuticals and natural products, and feature as crucial synthetic handles in their construction. As such their synthesis has become an ever-more important goal in synthetic chemistry as the drawbacks of traditional strong base- and acid-mediated etherifications have become more limiting. In recent years, the generation of highly reactive intermediates via redox approaches has facilitated the synthesis of highly sterically-encumbered ethers and accordingly these strategies have been widely applied in α-tertiary ether synthesis. This review summarises and appraises the state-of-the-art in the application of redox strategies enabling acyclic α-tertiary ether synthesis.
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Affiliation(s)
- Benjamin D A Shennan
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Diana Berheci
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Jessica L Crompton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Timothy A Davidson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Joshua L Field
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Benedict A Williams
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Darren J Dixon
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
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4
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Shi Y, Wang Y, Huang Z, Zhang F, Shao Y. t BuOLi-Promoted Hydroboration of Esters and Epoxides. ACS OMEGA 2022; 7:18876-18886. [PMID: 35694491 PMCID: PMC9178618 DOI: 10.1021/acsomega.2c01866] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
Commercially available and inexpensive lithium tert-butoxide ( t BuOLi) acts as a good precatalyst for the hydroboration of esters, lactones, and epoxides using pinacolborane as a borylation agent. Functional groups such as cyano-, nitro-, amino-, vinyl, and alkynyl are unaffected under the presented hydroboration process, representing high chemoselectivity. This transformation has also been effectively applied to the synthesis of key intermediates of Erlotinib and Cinacalcet. Preliminary investigations of the mechanism show that the hydroboration proceeds through the in situ formed BH3 species.
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Affiliation(s)
- Yinyin Shi
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yue Wang
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zhefan Huang
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Fangjun Zhang
- School
of Pharmaceutical Sciences, Wenzhou Medical
University, Wenzhou 325035, China
| | - Yinlin Shao
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
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5
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Das K, Waiba S, Jana A, Maji B. Manganese-catalyzed hydrogenation, dehydrogenation, and hydroelementation reactions. Chem Soc Rev 2022; 51:4386-4464. [PMID: 35583150 DOI: 10.1039/d2cs00093h] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The emerging field of organometallic catalysis has shifted towards research on Earth-abundant transition metals due to their ready availability, economic advantage, and novel properties. In this case, manganese, the third most abundant transition-metal in the Earth's crust, has emerged as one of the leading competitors. Accordingly, a large number of molecularly-defined Mn-complexes has been synthesized and employed for hydrogenation, dehydrogenation, and hydroelementation reactions. In this regard, catalyst design is based on three pillars, namely, metal-ligand bifunctionality, ligand hemilability, and redox activity. Indeed, the developed catalysts not only differ in the number of chelating atoms they possess but also their working principles, thereby leading to different turnover numbers for product molecules. Hence, the critical assessment of molecularly defined manganese catalysts in terms of chelating atoms, reaction conditions, mechanistic pathway, and product turnover number is significant. Herein, we analyze manganese complexes for their catalytic activity, versatility to allow multiple transformations and their routes to convert substrates to target molecules. This article will also be helpful to get significant insight into ligand design, thereby aiding catalysis design.
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Affiliation(s)
- Kuhali Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Satyadeep Waiba
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Akash Jana
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Biplab Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
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6
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Towards ligand simplification in manganese-catalyzed hydrogenation and hydrosilylation processes. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214421] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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7
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Abstract
AbstractRecent developments in manganese-catalyzed reducing transformations—hydrosilylation, hydroboration, hydrogenation, and transfer hydrogenation—are reviewed herein. Over the past half a decade (i.e., 2016 to the present), more than 115 research publications have been reported in these fields. Novel organometallic compounds and new reduction transformations have been discovered and further developed. Significant challenges that had historically acted as barriers for the use of manganese catalysts in reduction reactions are slowly being broken down. This review will hopefully assist in developing this research area, by presenting a clear and concise overview of the catalyst structures and substrate transformations published so far.1 Introduction2 Hydrosilylation3 Hydroboration4 Hydrogenation5 Transfer Hydrogenation6 Conclusion and Perspective
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Affiliation(s)
- Christophe Werlé
- Max Planck Institute for Chemical Energy Conversion
- Ruhr University Bochum
| | - Peter Schlichter
- Max Planck Institute for Chemical Energy Conversion
- Institut für Technische und Makromolekulare Chemie (ITMC), RWTH Aachen University
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8
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Goralski ST, Cid-Seara KM, Jarju JJ, Rodriguez-Lorenzo L, LaGrow AP, Rose MJ, Salonen LM. Threefold reactivity of a COF-embedded rhenium catalyst: reductive etherification, oxidative esterification or transfer hydrogenation. Chem Commun (Camb) 2022; 58:12074-12077. [DOI: 10.1039/d2cc03173f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactivity of the novel Re(i) catalyst [Re(C12Anth-py2)(CO)3Br] is modulated by its interactions with the covalent organic framework (COF) TFB-BD.
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Affiliation(s)
- Sean T. Goralski
- Department of Chemistry, University of Texas at Austin, 105 E. 24th St. Stop A5300, Austin, TX 78712, USA
| | - Krystal M. Cid-Seara
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, Braga 4715-330, Portugal
- Department of Inorganic Chemistry, University of Vigo, Campus Universitario, As Lagoas-Marcosende, 36310 Vigo, Spain
| | - Jenni J. Jarju
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, Braga 4715-330, Portugal
| | - Laura Rodriguez-Lorenzo
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, Braga 4715-330, Portugal
| | - Alec P. LaGrow
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, Braga 4715-330, Portugal
| | - Michael J. Rose
- Department of Chemistry, University of Texas at Austin, 105 E. 24th St. Stop A5300, Austin, TX 78712, USA
| | - Laura M. Salonen
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga, Braga 4715-330, Portugal
- CINBIO, Universidade de Vigo, Department of Organic Chemistry, Vigo 36310, Spain
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9
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Stoll E, Denton RM, Hirst DJ, Barber T. In Situ Silane Activation Enables Catalytic Reduction of Carboxylic Acids. Chem Commun (Camb) 2022; 58:3509-3512. [DOI: 10.1039/d1cc03396d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe a catalytic system for the conversion of carboxylic acids into alcohols using substoichiometric zinc acetate and N-methyl morpholine, in combination with phenylsilane as the nominal terminal reductant. Reaction...
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10
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Suzuki H, Yoneoka K, Kondo S, Matsuda T. Copper-Catalyzed Enantioselective Reductive Aldol Reaction of α,β-Unsaturated Carboxylic Acids to Ketones: Silanes as Activator and Transient Protecting Group. Chemistry 2021; 28:e202104273. [PMID: 34967961 DOI: 10.1002/chem.202104273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Indexed: 11/09/2022]
Abstract
We have developed the first enantioselective reductive aldol reaction of unprotected α,β-unsaturated carboxylic acids by employing a copper/bisphosphine catalyst. The reaction features in situ protection and activation of an α,β-unsaturated carboxylic acid by a hydrosilane. The copper enolate formed in situ reacts with a ketone to afford the β-hydroxy carboxylic acid with excellent enantioselectivity (up to 99% ee). The corresponding gram-scale reaction with a low catalyst loading and the derivatization of the β-hydroxy carboxylic acids highlight the practicality of this transformation.
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Affiliation(s)
- Hirotsugu Suzuki
- Tokyo University of Science: Tokyo Rika Daigaku, Department of Applied Chemistry, 1-3 Kagurazaka, Shinjuku-ku, 162-8601, Tokyo, JAPAN
| | - Kenji Yoneoka
- Tokyo University of Science: Tokyo Rika Daigaku, Department of Applied Chemistry, 1-3 Kagurazaka, Shinjuku-ku, 162-8601, Tokyo, JAPAN
| | - Sora Kondo
- Tokyo University of Science: Tokyo Rika Daigaku, Department of Applied Chemistry, 1-3 Kagurazaka, Shinjuku-ku, 162-8601, Tokyo, JAPAN
| | - Takanori Matsuda
- Tokyo University of Science, Department of Applied Chemistry, 1-3 Kagurazaka, Shinjuku, 162-8601, Tokyo, JAPAN
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11
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Chakraborty S, Das A, Mandal SK. Redox-active ligand based Mn(I)-catalyst for hydrosilylative ester reduction. Chem Commun (Camb) 2021; 57:12671-12674. [PMID: 34779467 DOI: 10.1039/d1cc05614j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Herein a Mn(I) catalyst bearing a redox-active phenalenyl (PLY) based ligand is reported for the efficient hydrosilylation of esters to alcohols using the inexpensive silane source polymethylhydrosiloxane (PMHS) under mild conditions. Mechanistic investigations suggest a strong ligand-metal cooperation where a ligand-based single electron transfer (SET) process initiates the reaction through Si-H bond activation.
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Affiliation(s)
- Soumi Chakraborty
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur Campus, Pin-741246, Nadia, West Bengal, India.
| | - Arpan Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur Campus, Pin-741246, Nadia, West Bengal, India.
| | - Swadhin K Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur Campus, Pin-741246, Nadia, West Bengal, India.
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12
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Ulm F, Shahane S, Truong‐Phuoc L, Romero T, Papaefthimiou V, Chessé M, Chetcuti MJ, Pham‐Huu C, Michon C, Ritleng V. Half‐Sandwich Nickel(II) NHC‐Picolyl Complexes as Catalysts for the Hydrosilylation of Carbonyl Compounds: Evidence for NHC‐Nickel Nanoparticles under Harsh Reaction Conditions. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Franck Ulm
- Université de Strasbourg Ecole Européenne de Chimie Polymères et Matériaux CNRS LIMA UMR 7042 25 rue Becquerel 67087 Strasbourg France
| | - Saurabh Shahane
- Université de Strasbourg Ecole Européenne de Chimie Polymères et Matériaux CNRS LIMA UMR 7042 25 rue Becquerel 67087 Strasbourg France
| | - Lai Truong‐Phuoc
- Université de Strasbourg Institute of Chemistry and Processes for Energy Environment and Health (ICPEES) UMR 7515 CNRS 25 rue Becquerel 67087 Strasbourg France
| | - Thierry Romero
- Université de Strasbourg Institute of Chemistry and Processes for Energy Environment and Health (ICPEES) UMR 7515 CNRS 25 rue Becquerel 67087 Strasbourg France
| | - Vasiliki Papaefthimiou
- Université de Strasbourg Institute of Chemistry and Processes for Energy Environment and Health (ICPEES) UMR 7515 CNRS 25 rue Becquerel 67087 Strasbourg France
| | - Matthieu Chessé
- Université de Strasbourg Ecole Européenne de Chimie Polymères et Matériaux CNRS LIMA UMR 7042 25 rue Becquerel 67087 Strasbourg France
| | - Michael J. Chetcuti
- Université de Strasbourg Ecole Européenne de Chimie Polymères et Matériaux CNRS LIMA UMR 7042 25 rue Becquerel 67087 Strasbourg France
| | - Cuong Pham‐Huu
- Université de Strasbourg Institute of Chemistry and Processes for Energy Environment and Health (ICPEES) UMR 7515 CNRS 25 rue Becquerel 67087 Strasbourg France
- University of Strasbourg Institute for Advanced Study (USIAS) 5 allée du Général Rouvillois 67083 Strasbourg France
| | - Christophe Michon
- Université de Strasbourg Ecole Européenne de Chimie Polymères et Matériaux CNRS LIMA UMR 7042 25 rue Becquerel 67087 Strasbourg France
- University of Strasbourg Institute for Advanced Study (USIAS) 5 allée du Général Rouvillois 67083 Strasbourg France
| | - Vincent Ritleng
- Université de Strasbourg Ecole Européenne de Chimie Polymères et Matériaux CNRS LIMA UMR 7042 25 rue Becquerel 67087 Strasbourg France
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13
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Ghosh P, Jacobi von Wangelin A. Manganese‐Catalyzed Hydroborations with Broad Scope. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103550] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pradip Ghosh
- Dept. of Chemistry University of Hamburg Martin Luther King Pl 6 20146 Hamburg Germany
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14
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Ghosh P, Jacobi von Wangelin A. Manganese-Catalyzed Hydroborations with Broad Scope. Angew Chem Int Ed Engl 2021; 60:16035-16043. [PMID: 33894033 PMCID: PMC8362021 DOI: 10.1002/anie.202103550] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/22/2021] [Indexed: 12/29/2022]
Abstract
Reductive transformations of easily available oxidized matter are at the heart of synthetic manipulation and chemical valorization. The applications of catalytic hydrofunctionalization benefit from the use of liquid reducing agents and operationally facile setups. Metal‐catalyzed hydroborations provide a highly prolific platform for reductive valorizations of stable C=X electrophiles. Here, we report an especially facile, broad‐scope reduction of various functions including carbonyls, carboxylates, pyridines, carbodiimides, and carbonates under very mild conditions with the inexpensive pre‐catalyst Mn(hmds)2. The reaction could be successfully applied to depolymerizations.
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Affiliation(s)
- Pradip Ghosh
- Dept. of Chemistry, University of Hamburg, Martin Luther King Pl 6, 20146, Hamburg, Germany
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15
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Antico E, Schlichter P, Werlé C, Leitner W. Reduction of Carboxylic Acids to Alcohols via Manganese(I) Catalyzed Hydrosilylation. JACS AU 2021; 1:742-749. [PMID: 34467330 PMCID: PMC8395667 DOI: 10.1021/jacsau.1c00140] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The reduction of carboxylic acids to the respective alcohols, in mild conditions, was achieved using [MnBr(CO)5] as the catalyst and bench stable PhSiH3 as the reducing agent. It was shown that the reaction with the earth-abundant metal catalyst could be performed either with a catalyst loading as low as 0.5 mol %, rare with the use of [MnBr(CO)5], or on a gram scale employing only 1.5 equiv of PhSiH3, the lowest amount of silane reported to date for this transformation. Kinetic data and control experiments have provided initial insight into the mechanism of the catalytic process, suggesting that it proceeds via the formation of silyl ester intermediates and ligand dissociation to generate a coordinatively unsaturated Mn(I) complex as the active species.
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Affiliation(s)
- Emanuele Antico
- Max
Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Institut
für Technische und Makromolekulare Chemie (ITMC), RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
| | - Peter Schlichter
- Max
Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Institut
für Technische und Makromolekulare Chemie (ITMC), RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
| | - Christophe Werlé
- Max
Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Ruhr
University Bochum, Universitätsstr.
150, 44801 Bochum, Germany
| | - Walter Leitner
- Max
Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
- Institut
für Technische und Makromolekulare Chemie (ITMC), RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
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16
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Mohammadsaleh F, Jahromi MD, Hajipour AR, Hosseini SM, Niknam K. 1,2,3-Triazole framework: a strategic structure for C-H⋯X hydrogen bonding and practical design of an effective Pd-catalyst for carbonylation and carbon-carbon bond formation. RSC Adv 2021; 11:20812-20823. [PMID: 35479367 PMCID: PMC9034039 DOI: 10.1039/d1ra03356e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/04/2021] [Indexed: 12/14/2022] Open
Abstract
1,2,3-Triazole is an interesting N-heterocyclic framework which can act as both a hydrogen bond donor and metal chelator. In the present study, C-H hydrogen bonding of the 1,2,3-triazole ring was surveyed theoretically and the results showed a good agreement with the experimental observations. The click-modified magnetic nanocatalyst Pd@click-Fe3O4/chitosan was successfully prepared, in which the triazole moiety plays a dual role as both a strong linker and an excellent ligand and immobilizes the palladium species in the catalyst matrix. This nanostructure was well characterized and found to be an efficient catalyst for the CO gas-free formylation of aryl halides using formic acid (HCOOH) as the most convenient, inexpensive and environmentally friendly CO source. Here, the aryl halides are selectively converted to the corresponding aromatic aldehydes under mild reaction conditions and low Pd loading. The activity of this catalyst was also excellent in the Suzuki cross-coupling reaction of various aryl halides with phenylboronic acids in EtOH/H2O (1 : 1) at room temperature. In addition, this catalyst was stable in the reaction media and could be magnetically separated and recovered several times.
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Affiliation(s)
- Fatemeh Mohammadsaleh
- Department of Chemistry, Faculty of Nano and Bio Science and Technology, Persian Gulf University Bushehr Iran
| | | | - Abdol Reza Hajipour
- Pharmaceutical Research Laboratory, Department of Chemistry, Isfahan University of Technology Isfahan 84156 Islamic Republic of Iran.,Department of Pharmacology, University of Wisconsin, Medical School, 1300 University Avenue Madison 53706-1532 WI USA
| | - Seyed Mostafa Hosseini
- Pharmaceutical Research Laboratory, Department of Chemistry, Isfahan University of Technology Isfahan 84156 Islamic Republic of Iran
| | - Khodabakhsh Niknam
- Department of Chemistry, Faculty of Nano and Bio Science and Technology, Persian Gulf University Bushehr Iran
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17
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Ganguli K, Mandal A, Sarkar B, Kundu S. Benzimidazole fragment containing Mn-complex catalyzed hydrosilylation of ketones and nitriles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131439] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Wei D, Buhaibeh R, Canac Y, Sortais JB. Manganese and rhenium-catalyzed selective reduction of esters to aldehydes with hydrosilanes. Chem Commun (Camb) 2020; 56:11617-11620. [PMID: 32869774 DOI: 10.1039/d0cc03580g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The selective reduction of esters to aldehydes, via the formation of stable alkyl silyl acetals, was, for the first time, achieved with both manganese, -Mn2(CO)10- and rhenium -Re2(CO)10- catalysts in the presence of triethylsilane as reductant. These two methods provide a direct access to a large variety of aliphatic and aromatic alkyl silyl acetals (30 examples) and to the corresponding aldehydes (13 examples) upon hydrolysis. The reactions proceeded in excellent yields and high selectivity at room temperature under photo-irradiation conditions (LED, 365 nm, 40 W, 9 h).
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Affiliation(s)
- Duo Wei
- Univ Rennes, CNRS, ISCR - UMR 6226, F-35000, Rennes, France
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19
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Pattanaik S, Gunanathan C. Cobalt-catalysed selective synthesis of aldehydes and alcohols from esters. Chem Commun (Camb) 2020; 56:7345-7348. [PMID: 32484179 DOI: 10.1039/d0cc03076g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient and selective reduction of esters to aldehydes and alcohols is reported in which a simple cobalt pincer catalyst catalyses both transformations using diethylsilane as a reductant. Remarkably, the reaction selectivity is controlled by the stoichiometry of diethylsilane.
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Affiliation(s)
- Sandip Pattanaik
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, Khurda-752050, India.
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, Khurda-752050, India.
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20
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Behera RR, Ghosh R, Panda S, Khamari S, Bagh B. Hydrosilylation of Esters Catalyzed by Bisphosphine Manganese(I) Complex: Selective Transformation of Esters to Alcohols. Org Lett 2020; 22:3642-3648. [PMID: 32271582 DOI: 10.1021/acs.orglett.0c01144] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Selective and efficient hydrosilylations of esters to alcohols by a well-defined manganese(I) complex with a commercially available bisphosphine ligand are described. These reactions are easy alternatives for stoichiometric hydride reduction or hydrogenation, and employing cheap, abundant, and nonprecious metal is attractive. The hydrosilylations were performed at 100 °C under solvent-free conditions with low catalyst loading. A large variety of aromatic, aliphatic, and cyclic esters bearing different functional groups were selectively converted into the corresponding alcohols in good yields.
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Affiliation(s)
- Rakesh R Behera
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Rahul Ghosh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Surajit Panda
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Subrat Khamari
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Bidraha Bagh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
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21
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Sousa SCA, Realista S, Royo B. Bench‐Stable Manganese NHC Complexes for the Selective Reduction of Esters to Alcohols with Silanes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000148] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sara C. A. Sousa
- Instituto de Tecnologia Química e Biológica António XavierITQB NOVAUniversidade Nova de Lisboa Oeiras Portugal
| | - Sara Realista
- Instituto de Tecnologia Química e Biológica António XavierITQB NOVAUniversidade Nova de Lisboa Oeiras Portugal
| | - Beatriz Royo
- Instituto de Tecnologia Química e Biológica António XavierITQB NOVAUniversidade Nova de Lisboa Oeiras Portugal
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22
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Zhang G, Zeng H, Li S, Johnson J, Mo Z, Neary MC, Zheng S. 1-D manganese(ii)-terpyridine coordination polymers as precatalysts for hydrofunctionalisation of carbonyl compounds. Dalton Trans 2020; 49:2610-2615. [PMID: 32037438 DOI: 10.1039/c9dt04637b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient hydroboration and hydrosilylation of ketones and aldehydes has been achieved using a MnII-coordination polymer as precatalyst under mild conditions.
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Affiliation(s)
- Guoqi Zhang
- Department of Sciences
- John Jay College and Ph.D. Program in Chemistry
- The Graduate Center of the City University of New York
- New York
- USA
| | - Haisu Zeng
- Department of Sciences
- John Jay College and Ph.D. Program in Chemistry
- The Graduate Center of the City University of New York
- New York
- USA
| | - Sihan Li
- Department of Sciences
- John Jay College and Ph.D. Program in Chemistry
- The Graduate Center of the City University of New York
- New York
- USA
| | - Jahvon Johnson
- Department of Sciences
- John Jay College and Ph.D. Program in Chemistry
- The Graduate Center of the City University of New York
- New York
- USA
| | - Zixuan Mo
- Department of Sciences
- John Jay College and Ph.D. Program in Chemistry
- The Graduate Center of the City University of New York
- New York
- USA
| | - Michelle C. Neary
- Department of Chemistry
- Hunter College
- the City University of New York
- New York
- USA
| | - Shengping Zheng
- Department of Chemistry
- Hunter College
- the City University of New York
- New York
- USA
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