1
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Sharma HK, Metta-Magaña AJ, Pannell KH. Aminomethylation of Aminoferrocene, [(η 5-C 5H 5)Fe(η 5-C 5H 4NH 2)], and (Anilino)chromiumtricarbonyl, [(η 6-C 6H 5NH 2)Cr(CO) 3], by O-Triethylsilyl-hemiaminal, (Et 3SiOCH 2NMe 2): The Role of Disparate Organometallic Electronic Effects in Modifying Product Outcomes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hemant K. Sharma
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, Texas. 79968, United States
| | - Alejandro J. Metta-Magaña
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, Texas. 79968, United States
| | - Keith H. Pannell
- Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, Texas. 79968, United States
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2
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Wu J, Darcel C. Tandem Fe/Zn or Fe/In catalysis for the selective synthesis of primary and secondary amines via selective reduction of primary amides. ChemCatChem 2022. [DOI: 10.1002/cctc.202101874] [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]
Affiliation(s)
- Jiajun Wu
- Universite de Rennes 1 Institut des Sciences Chimiques de Rennes, OMC team 263 aveneue fu Général LeclercBat 10C 35042 Rennes FRANCE
| | - Christophe Darcel
- Universite de Rennes 1 Institut des Sciences Chimiques de Rennes Avenue du Général LeclercCampus de Beaulieu, Bat 10C, bureau 040 35000 Rennes FRANCE
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3
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Kar S, Sanderson H, Roy K, Benfenati E, Leszczynski J. Green Chemistry in the Synthesis of Pharmaceuticals. Chem Rev 2021; 122:3637-3710. [PMID: 34910451 DOI: 10.1021/acs.chemrev.1c00631] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The principles of green chemistry (GC) can be comprehensively implemented in green synthesis of pharmaceuticals by choosing no solvents or green solvents (preferably water), alternative reaction media, and consideration of one-pot synthesis, multicomponent reactions (MCRs), continuous processing, and process intensification approaches for atom economy and final waste reduction. The GC's execution in green synthesis can be performed using a holistic design of the active pharmaceutical ingredient's (API) life cycle, minimizing hazards and pollution, and capitalizing the resource efficiency in the synthesis technique. Thus, the presented review accounts for the comprehensive exploration of GC's principles and metrics, an appropriate implication of those ideas in each step of the reaction schemes, from raw material to an intermediate to the final product's synthesis, and the final execution of the synthesis into scalable industry-based production. For real-life examples, we have discussed the synthesis of a series of established generic pharmaceuticals, starting with the raw materials, and the intermediates of the corresponding pharmaceuticals. Researchers and industries have thoughtfully instigated a green synthesis process to control the atom economy and waste reduction to protect the environment. We have extensively discussed significant reactions relevant for green synthesis, one-pot cascade synthesis, MCRs, continuous processing, and process intensification, which may contribute to the future of green and sustainable synthesis of APIs.
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Affiliation(s)
- Supratik Kar
- Interdisciplinary Center for Nanotoxicity, Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, Mississippi 39217, United States
| | - Hans Sanderson
- Department of Environmental Science, Section for Toxicology and Chemistry, Aarhus University, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
| | - Kunal Roy
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India.,Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 19, 20156 Milano, Italy
| | - Emilio Benfenati
- Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 19, 20156 Milano, Italy
| | - Jerzy Leszczynski
- Interdisciplinary Center for Nanotoxicity, Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, Mississippi 39217, United States
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4
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Pandey P, Bera JK. Hydrosilylative reduction of primary amides to primary amines catalyzed by a terminal [Ni-OH] complex. Chem Commun (Camb) 2021; 57:9204-9207. [PMID: 34519312 DOI: 10.1039/d1cc03537a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A terminal [Ni-OH] complex 1, supported by triflamide-functionalized NHC ligands, catalyzes the hydrosilylative reduction of a range of primary amides into primary amines in good to excellent yields under base-free conditions with key functional group tolerance. Catalyst 1 is also effective for the reduction of a variety of tertiary and secondary amides. In contrast to literature reports, the reactivity of 1 towards amide reduction follows an inverse trend, i.e., 1° amide > 3° amide > 2° amide. The reaction does not follow a usual dehydration pathway.
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Affiliation(s)
- Pragati Pandey
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
| | - Jitendra K Bera
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
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5
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Rana S, Biswas JP, Paul S, Paik A, Maiti D. Organic synthesis with the most abundant transition metal–iron: from rust to multitasking catalysts. Chem Soc Rev 2021; 50:243-472. [DOI: 10.1039/d0cs00688b] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The promising aspects of iron in synthetic chemistry are being explored for three-four decades as a green and eco-friendly alternative to late transition metals. This present review unveils these rich iron-chemistry towards different transformations.
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Affiliation(s)
- Sujoy Rana
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | | | - Sabarni Paul
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Aniruddha Paik
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Debabrata Maiti
- Department of Chemistry
- IIT Bombay
- Mumbai-400076
- India
- Tokyo Tech World Research Hub Initiative (WRHI)
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6
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Wei D, Netkaew C, Wu J, Darcel C. Iron‐catalyzed hydrosilylation of diacids in the presence of amines: a new route to cyclic amines. ChemCatChem 2020. [DOI: 10.1002/cctc.202000881] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Duo Wei
- Univ Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Chakkrit Netkaew
- Univ Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Jiajun Wu
- Univ Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Christophe Darcel
- Univ Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
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7
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Liu Y, Xia Y, Cui S, Ji Y, Wu L. Palladium‐Catalyzed Cascade Hydrosilylation and Amino‐Methylation of Isatin Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yue Liu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Yun‐Tao Xia
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Su‐Hang Cui
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Yi‐Gang Ji
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
- Jiangsu Key Laboratory of Biofunctional Molecules, Department of Life Sciences and ChemistryJiangsu Second Normal University Nanjing 210013 People's Republic of China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of SciencesNanjing Agricultural University Nanjing 210095 People's Republic of China
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8
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9
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Shaikh NS. Sustainable Amine Synthesis: Iron Catalyzed Reactions of Hydrosilanes with Imines, Amides, Nitroarenes and Nitriles. ChemistrySelect 2019. [DOI: 10.1002/slct.201900460] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nadim S. Shaikh
- Department of Chemistry Eurofins Advinus Ltd., 21 & 22, Phase II, Peenya Industrial State Bengaluru 560058 India
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10
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Hale DJ, Murphy LJ, McDonald R, Ferguson MJ, Turculet L. Hydrosilylative Reduction of Tertiary Amides to Amines Catalyzed by
N
‐(Phosphinoaryl)anilido Complexes of Iron and Cobalt. ChemCatChem 2019. [DOI: 10.1002/cctc.201900550] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Dylan J. Hale
- Department of ChemistryDalhousie University 6274 Coburg Rd., Halifax Nova Scotia B3H 4R2 Canada
| | - Luke J. Murphy
- Department of ChemistryDalhousie University 6274 Coburg Rd., Halifax Nova Scotia B3H 4R2 Canada
| | - Robert McDonald
- X-Ray Crystallography Laboratory, Department of ChemistryUniversity of Alberta 11227 Saskatchewan Dr., Edmonton Alberta T6G 2G2 Canada
| | - Michael J. Ferguson
- X-Ray Crystallography Laboratory, Department of ChemistryUniversity of Alberta 11227 Saskatchewan Dr., Edmonton Alberta T6G 2G2 Canada
| | - Laura Turculet
- Department of ChemistryDalhousie University 6274 Coburg Rd., Halifax Nova Scotia B3H 4R2 Canada
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11
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Abstract
The development of efficient methodologies for production of amines attracts significant attention from synthetic chemists, because amines serve as essential building blocks in the synthesis of many pharmaceuticals, natural products, and agrochemicals. In this regard, deoxygenative reduction of amides to amines by means of transition-metal-catalyzed hydrogenation, hydrosilylation, and hydroboration reactions represents an attractive alternative to conventional wasteful techniques based on stoichiometric reductions of the corresponding amides and imines, and reductive amination of aldehydes with metal hydride reagents. The relatively low electrophilicity of the amide carbonyl group makes this transformation more challenging compared to reduction of other carbonyl compounds, and the majority of the reported catalytic systems employ precious metals such as platinum, rhodium, iridium, and ruthenium. Despite the application of more abundant and environmentally benign base metal (Mn, Fe, Co, and Ni) complexes for deoxygenative reduction of amides have been developed to a lesser extent, such catalytic systems are of great importance. This review is focused on the current achievements in the base-metal-catalyzed deoxygenative hydrogenation, hydrosilylation, and hydroboration of amides to amines. Special attention is paid to the design of base metal catalysts and the mechanisms of such catalytic transformations.
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12
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Guzmán J, Bernal AM, García-Orduña P, Lahoz FJ, Oro LA, Fernández-Alvarez FJ. Selective reduction of formamides to O-silylated hemiaminals or methylamines with HSiMe 2Ph catalyzed by iridium complexes. Dalton Trans 2019; 48:4255-4262. [PMID: 30847452 DOI: 10.1039/c8dt05070h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of (4-methyl-pyridin-2-iloxy)ditertbutylsilane (NSitBu-H, 1) with [IrCl(coe)2]2 affords the iridium(iii) complex [Ir(H)(Cl)(κ2-NSitBu)(coe)] (2), which has been fully characterized including X-ray diffraction studies. The reaction of 2 with AgCF3SO3 leads to the formation of species [Ir(H)(CF3SO3)(κ2-NSitBu)(coe)] (3). The iridium complexes 2 and 3 are effective catalysts for the reduction of formamides with HSiMe2Ph. The selectivity of the reduction process depends on the catalyst. Thus, by using complex 2, with a chloride ancillary ligand, it has been possible to selectively obtain the corresponding O-silylated hemiaminal by reaction of formamides with one equivalent of HSiMe2Ph, while complex 3, with a triflate ligand instead of chloride, catalyzed the selective reduction of formamides to the corresponding methylamine.
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Affiliation(s)
- Jefferson Guzmán
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza - CSIC, Facultad de Ciencias 50009, Zaragoza, Spain.
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13
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Pan Y, Luo Z, Han J, Xu X, Chen C, Zhao H, Xu L, Fan Q, Xiao J. B(C
6
F
5
)
3
‐Catalyzed Deoxygenative Reduction of Amides to Amines with Ammonia Borane. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801447] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yixiao Pan
- Department of ChemistryRenmin University of China Beijing 100872 People's Republic of China
| | - Zhenli Luo
- Department of ChemistryRenmin University of China Beijing 100872 People's Republic of China
| | - Jiahong Han
- Department of ChemistryRenmin University of China Beijing 100872 People's Republic of China
| | - Xin Xu
- Department of ChemistryRenmin University of China Beijing 100872 People's Republic of China
| | - Changjun Chen
- Department of ChemistryRenmin University of China Beijing 100872 People's Republic of China
| | - Haoqiang Zhao
- Department of ChemistryRenmin University of China Beijing 100872 People's Republic of China
| | - Lijin Xu
- Department of ChemistryRenmin University of China Beijing 100872 People's Republic of China
| | - Qinghua Fan
- Institute of ChemistryChinese Academy of Sciences Beijing 100190 People's Republic of China
| | - Jianliang Xiao
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD United Kingdom
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14
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Nurseiit A, Janabel J, Gudun KA, Kassymbek A, Segizbayev M, Seilkhanov TM, Khalimon AY. Bench-Stable Cobalt Pre-Catalysts for Mild Hydrosilative Reduction of Tertiary Amides to Amines and Beyond. ChemCatChem 2019. [DOI: 10.1002/cctc.201801605] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Alibek Nurseiit
- Department of Chemistry; School of Science and Technology, Nazarbayev University; 53 Kabanbay Batyr Avenue Astana 010000 Kazakhstan
| | - Jaysan Janabel
- Department of Chemistry; School of Science and Technology, Nazarbayev University; 53 Kabanbay Batyr Avenue Astana 010000 Kazakhstan
| | - Kristina A. Gudun
- Department of Chemistry; School of Science and Technology, Nazarbayev University; 53 Kabanbay Batyr Avenue Astana 010000 Kazakhstan
| | - Aishabibi Kassymbek
- Department of Chemistry; School of Science and Technology, Nazarbayev University; 53 Kabanbay Batyr Avenue Astana 010000 Kazakhstan
| | - Medet Segizbayev
- Department of Chemistry; School of Science and Technology, Nazarbayev University; 53 Kabanbay Batyr Avenue Astana 010000 Kazakhstan
| | - Tulegen M. Seilkhanov
- Laboratory of Engineering Profile NMR Spectroscopy; Sh. Ualikhanov Kokshetau State University; 76 Abay Street Kokshetau 020000 Kazakhstan
| | - Andrey Y. Khalimon
- Department of Chemistry; School of Science and Technology, Nazarbayev University; 53 Kabanbay Batyr Avenue Astana 010000 Kazakhstan
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15
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Macaulay CM, Ogawa T, McDonald R, Sydora OL, Stradiotto M, Turculet L. A comparative analysis of hydrosilative amide reduction catalyzed by first-row transition metal (Mn, Fe, Co, and Ni) N-phosphinoamidinate complexes. Dalton Trans 2019; 48:9581-9587. [DOI: 10.1039/c8dt04221g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Screening reveals (PN)Ni(x) pre-catalysts to be effective for the hydrosilative reduction of amides under mild conditions.
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Affiliation(s)
| | - Takahiko Ogawa
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
| | - Robert McDonald
- X-Ray Crystallography Laboratory
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Orson L. Sydora
- Research and Technology
- Chevron Phillips Chemical Company LP
- Kingwood
- USA
| | | | - Laura Turculet
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
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16
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Yao W, Li R, Yang J, Hao F. Hydride-catalyzed selectively reductive cleavage of unactivated tertiary amides using hydrosilane. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00924h] [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
The first hydride-catalyzed reductive cleavage of tertiary amides using the hydrosilane as reducing reagent has been developed. This transition-metal-free process may offer a versatile alternative to current systems for the selective reductive cleavage of amides.
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Affiliation(s)
- Wubing Yao
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- China
| | - Rongrong Li
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- China
| | - Jianguo Yang
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- China
| | - Feiyue Hao
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- China
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17
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Affiliation(s)
- Duo Wei
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
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18
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Ni J, Oguro T, Sawazaki T, Sohma Y, Kanai M. Hydroxy Group Directed Catalytic Hydrosilylation of Amides. Org Lett 2018; 20:7371-7374. [PMID: 30418782 DOI: 10.1021/acs.orglett.8b03014] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chemo- and site-selective hydrosilylation of α- or β-hydroxy amides using organocatalyst B(C6F5)3 and commercially available hydrosilanes is described. This transformation is operative under mild conditions and tolerates a wide range of functional groups. The reaction was applied for selective reduction of a specific amide group of the therapeutically important cyclic peptide cyclosporin A, demonstrating the potential usefulness of this catalytic method in late-stage structural transformations of drug lead molecules.
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Affiliation(s)
- Jizhi Ni
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Tsubasa Oguro
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Taka Sawazaki
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Youhei Sohma
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
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19
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Liang Q, Liu NJ, Song D. Constructing reactive Fe and Co complexes from isolated picolyl-functionalized N-heterocyclic carbenes. Dalton Trans 2018; 47:9889-9896. [DOI: 10.1039/c8dt02621a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Fe(ii) and Co(ii) complexes prepared from the isolated free carbene form of the picolyl-NHC ligands display excellent catalytic activity towards the hydrosilylation of ketones.
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Affiliation(s)
- Qiuming Liang
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Nina Jiabao Liu
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Datong Song
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
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20
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Ren S, Xie S, Zheng T, Wang Y, Xu S, Xue B, Li X, Sun H, Fuhr O, Fenske D. Synthesis of silyl iron hydride via Si–H activation and its dual catalytic application in the hydrosilylation of carbonyl compounds and dehydration of benzamides. Dalton Trans 2018; 47:4352-4359. [DOI: 10.1039/c8dt00289d] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A silyl iron hydride as a dual catalyst was synthesized for the reduction of carbonyl compounds and the dehydration of amides.
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21
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Kelly CM, McDonald R, Sydora OL, Stradiotto M, Turculet L. A Manganese Pre-Catalyst: Mild Reduction of Amides, Ketones, Aldehydes, and Esters. Angew Chem Int Ed Engl 2017; 56:15901-15904. [DOI: 10.1002/anie.201709441] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 10/18/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Colin M. Kelly
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
| | - Robert McDonald
- X-ray Crystallography Laboratory; Department of Chemistry; University of Alberta; Edmonton Alberta T6G 2G2 Canada
| | - Orson L. Sydora
- Research and Technology; Chevron Phillips Chemical Company LP; 1862 Kingwood Drive Kingwood TX 77339 USA
| | - Mark Stradiotto
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
| | - Laura Turculet
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
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22
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Kelly CM, McDonald R, Sydora OL, Stradiotto M, Turculet L. A Manganese Pre-Catalyst: Mild Reduction of Amides, Ketones, Aldehydes, and Esters. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709441] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Colin M. Kelly
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
| | - Robert McDonald
- X-ray Crystallography Laboratory; Department of Chemistry; University of Alberta; Edmonton Alberta T6G 2G2 Canada
| | - Orson L. Sydora
- Research and Technology; Chevron Phillips Chemical Company LP; 1862 Kingwood Drive Kingwood TX 77339 USA
| | - Mark Stradiotto
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
| | - Laura Turculet
- Department of Chemistry; Dalhousie University; Halifax Nova Scotia B3H 4R2 Canada
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23
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Gonzalez PE, Sharma HK, Chakrabarty S, Metta-Magaña A, Pannell KH. Triethylsiloxymethyl-N,N-dimethylamine, Et3SiOCH2NMe2: A Dimethylaminomethylation (Mannich) Reagent for O-H, S-H, P-H and Aromatic C-H Systems. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700902] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paulina E. Gonzalez
- The Department of Chemistry; University of Texas at El Paso; 79968-0513 El Paso TX USA
| | - Hemant K. Sharma
- The Department of Chemistry; University of Texas at El Paso; 79968-0513 El Paso TX USA
| | - Sanchita Chakrabarty
- The Department of Chemistry; University of Texas at El Paso; 79968-0513 El Paso TX USA
| | | | - Keith H. Pannell
- The Department of Chemistry; University of Texas at El Paso; 79968-0513 El Paso TX USA
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24
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Zhao XX, Zhang P, Guo ZX. K2
CO3
-activated Hydrosilylation: from Redistribution of Polymethylhydrosiloxane to Selectively Reduction of Aldehydes and Ketones. ChemistrySelect 2017. [DOI: 10.1002/slct.201701592] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xuan-Xuan Zhao
- Department of Chemistry; Renmin University of China; Beijing 100872 China
| | - Pu Zhang
- Department of Chemistry; Renmin University of China; Beijing 100872 China
| | - Zhi-Xin Guo
- Department of Chemistry; Renmin University of China; Beijing 100872 China
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25
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DMF-activated chlorosilane chemistry: Molybdenum-catalyzed reactions of R3SiH, DMF and R′3SiCl to initially form R′3SiOSiR′3 and R3SiCl. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.06.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Affiliation(s)
- Rita Lopes
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier; Av. da República 2780-157 Oeiras Portugal
| | - Beatriz Royo
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier; Av. da República 2780-157 Oeiras Portugal
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27
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Schneider H, Schmidt D, Eichhöfer A, Radius M, Weigend F, Radius U. Synthesis and Reactivity of NHC‐Stabilized Iron(II)–Mesityl Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700143] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Heidi Schneider
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - David Schmidt
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Andreas Eichhöfer
- Institut für Nanotechnologie Karlsruher Institut für Technologie (KIT) Campus Nord, Hermann‐von‐Helmholtz‐Platz 1 76344 Eggenstein‐Leopoldshafen Germany
| | - Michael Radius
- Institut für Physikalische Chemie Karlsruher Institut für Technologie (KIT) Campus Süd, Kaiserstraße 12 76131 Karlsruhe Germany
| | - Florian Weigend
- Institut für Nanotechnologie Karlsruher Institut für Technologie (KIT) Campus Nord, Hermann‐von‐Helmholtz‐Platz 1 76344 Eggenstein‐Leopoldshafen Germany
- Institut für Physikalische Chemie Karlsruher Institut für Technologie (KIT) Campus Süd, Kaiserstraße 12 76131 Karlsruhe Germany
| | - Udo Radius
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
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28
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Ogiwara Y, Shimoda W, Ide K, Nakajima T, Sakai N. Carboxamides as N
-Alkylating Reagents of Secondary Amines in Indium-Catalyzed Reductive Amination with a Hydrosilane. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601629] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yohei Ogiwara
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
| | - Wataru Shimoda
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
| | - Keisuke Ide
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
| | - Takumi Nakajima
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
| | - Norio Sakai
- Department of Pure and Applied Chemistry; Faculty of Science and Technology; Tokyo University of Science (RIKADAI); 278-8510 Noda, Chiba Japan
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29
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Yue H, Guo L, Lee SC, Liu X, Rueping M. Selective Reductive Removal of Ester and Amide Groups from Arenes and Heteroarenes through Nickel-Catalyzed C−O and C−N Bond Activation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612624] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huifeng Yue
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Lin Guo
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Shao-Chi Lee
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Xiangqian Liu
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Magnus Rueping
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- King Abdullah University of Science and Technology (KAUST); KAUST Catalysis Center (KCC); Thuwal 23955-6900 Saudi Arabia
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30
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Yue H, Guo L, Lee SC, Liu X, Rueping M. Selective Reductive Removal of Ester and Amide Groups from Arenes and Heteroarenes through Nickel-Catalyzed C-O and C-N Bond Activation. Angew Chem Int Ed Engl 2017; 56:3972-3976. [PMID: 28321978 DOI: 10.1002/anie.201612624] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Indexed: 12/14/2022]
Abstract
An inexpensive nickel(II) catalyst and a hydrosilane were used for the efficient reductive defunctionalization of aryl and heteroaryl esters through a decarbonylative pathway. This versatile method could be used for the removal of ester and amide functional groups from various organic molecules. Moreover, a scale-up experiment and a synthetic application based on the use of a removable carboxylic acid directing group highlight the usefulness of this reaction.
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Affiliation(s)
- Huifeng Yue
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Lin Guo
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Shao-Chi Lee
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Xiangqian Liu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany.,King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal, 23955-6900, Saudi Arabia
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31
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Mondal M, Bharali P. Nickel-catalyzed reductive defunctionalization of esters and amides to aromatic hydrocarbons. NEW J CHEM 2017. [DOI: 10.1039/c7nj02488f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In two recent studies, nickel has been used in the removal of ester and amide groups to afford aromatic hydrocarbons via one-pot reductive activation followed by tandem C–CO bond cleavage–decarbonylation. Isolation and characterization of key intermediates provide insight into this acyl C–O bond activation pathway.
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Affiliation(s)
- Manoj Mondal
- Department of Chemical Sciences
- Tezpur University
- Tezpur-784028
- India
| | - Pankaj Bharali
- Department of Chemical Sciences
- Tezpur University
- Tezpur-784028
- India
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32
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MacNair AJ, Millet CRP, Nichol GS, Ironmonger A, Thomas SP. Markovnikov-Selective, Activator-Free Iron-Catalyzed Vinylarene Hydroboration. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02281] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alistair J. MacNair
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, EH9 3FJ, Scotland
| | - Clément R. P. Millet
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, EH9 3FJ, Scotland
| | - Gary S. Nichol
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, EH9 3FJ, Scotland
| | - Alan Ironmonger
- Research and Development,
GlaxoSmithKline, Gunnels Wood Road, Stevenage SG1 2NY, United Kingdom
| | - Stephen P. Thomas
- EaStCHEM,
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, EH9 3FJ, Scotland
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33
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Sharma HK, Gonzalez PE, Craig AL, Chakrabarty S, Metta-Magaña A, Pannell KH. Siloxymethylamines as Aminomethylation Reagents for Amines Leading to Labile Diaminomethanes That can be Trapped as Their [Mo(CO)4 ] Complexes. Chemistry 2016; 22:7363-6. [PMID: 27111263 DOI: 10.1002/chem.201600810] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Indexed: 11/10/2022]
Abstract
Compound Et3 SiOCH2 NMe2 transfers Me2 NCH2 to R2 NH (R2 =Et2 , PhMe, [Cr(η(6) -C6 H5 )(CO)3 ]Me, PhH) to form previously unknown diaminomethanes, Me2 NCH2 NR2 and, in the case of R2 =PhH, the triamine Me2 NCH2 N(Ph)CH2 NMe2 . The diaminomethanes exhibit an unreported disproportionation to a mixture of (R2 N)2 CH2 , (Me2 N)2 CH2 , and Me2 NCH2 NR2 , which can be trapped as their [Mo(CO)4 (diamine)] complexes. Whereas PhMeNCH2 NMe2 is a labile material, the metal-substituted ([(η(6) -C6 H5 )Cr(CO)3 ]MeNCH2 NMe2 is a stable material. The triamine Me2 NCH2 N(Ph)CH2 NMe2 is unstable with respect to transformation to 1,3,5-triphenyltriazine, but is readily trapped as the bidentate-triamineMo(CO)4 . All metal complexes were characterized by single-crystal X-ray diffraction.
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Affiliation(s)
- Hemant K Sharma
- Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968-0513, USA
| | - Paulina E Gonzalez
- Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968-0513, USA
| | - Alexander L Craig
- Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968-0513, USA
| | - Sanchita Chakrabarty
- Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968-0513, USA
| | | | - Keith H Pannell
- Department of Chemistry, University of Texas at El Paso, El Paso, TX, 79968-0513, USA.
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34
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Das S, Li Y, Lu LQ, Junge K, Beller M. A General and Selective Rhodium-Catalyzed Reduction of Amides,N-Acyl Amino Esters, and Dipeptides Using Phenylsilane. Chemistry 2016; 22:7050-3. [PMID: 26991132 DOI: 10.1002/chem.201600535] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Shoubhik Das
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
| | - Yuehui Li
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
| | - Liang-Qiu Lu
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert Einstein Str. 29a 18059 Rostock Germany
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35
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Chemoselective Reduction of Tertiary Amides under Thermal Control: Formation of either Aldehydes or Amines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600097] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Tinnis F, Volkov A, Slagbrand T, Adolfsson H. Chemoselective Reduction of Tertiary Amides under Thermal Control: Formation of either Aldehydes or Amines. Angew Chem Int Ed Engl 2016; 55:4562-6. [DOI: 10.1002/anie.201600097] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 02/11/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Fredrik Tinnis
- Department of Organic Chemistry; Stockholm University; 10691 Stockholm Sweden
| | - Alexey Volkov
- Department of Organic Chemistry; Stockholm University; 10691 Stockholm Sweden
| | - Tove Slagbrand
- Department of Organic Chemistry; Stockholm University; 10691 Stockholm Sweden
| | - Hans Adolfsson
- Department of Organic Chemistry; Stockholm University; 10691 Stockholm Sweden
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37
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Nguyen TVQ, Yoo W, Kobayashi S. Chelating Bis(1,2,3‐triazol‐5‐ylidene) Rhodium Complexes: Versatile Catalysts for Hydrosilylation Reactions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500875] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Thanh V. Q. Nguyen
- Department of Chemistry, School of Science The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo Japan
| | - Woo‐Jin Yoo
- Department of Chemistry, School of Science The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo Japan
| | - Shū Kobayashi
- Department of Chemistry, School of Science The University of Tokyo 7-3-1 Hongo Bunkyo-ku, Tokyo Japan
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38
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Li B, Sortais JB, Darcel C. Amine synthesis via transition metal homogeneous catalysed hydrosilylation. RSC Adv 2016. [DOI: 10.1039/c6ra10494k] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review summarizes the preparation of amines involving homogeneous transition metal catalysed hydrosilylation including reductions of imines, amides, nitro and nitriles, reductive aminations and N-methylation of amines with CO2.
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Affiliation(s)
- Bin Li
- UMR 6226 CNRS-Université de Rennes 1 “Institut des Sciences Chimiques de Rennes”
- Team “Organometallics: Materials and Catalysis”
- “Centre for Catalysis and Green Chemistry”
- 35042 Rennes Cedex
- France
| | - Jean-Baptiste Sortais
- UMR 6226 CNRS-Université de Rennes 1 “Institut des Sciences Chimiques de Rennes”
- Team “Organometallics: Materials and Catalysis”
- “Centre for Catalysis and Green Chemistry”
- 35042 Rennes Cedex
- France
| | - Christophe Darcel
- UMR 6226 CNRS-Université de Rennes 1 “Institut des Sciences Chimiques de Rennes”
- Team “Organometallics: Materials and Catalysis”
- “Centre for Catalysis and Green Chemistry”
- 35042 Rennes Cedex
- France
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39
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Das P, Elder T, Brennessel WW, Chmely SC. Iron piano-stool complexes containing NHC ligands outfitted with pendent arms: synthesis, characterization, and screening for catalytic transfer hydrogenation. RSC Adv 2016. [DOI: 10.1039/c6ra20764b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reaction of hydroxyl-appended NHC ligands with FpI affords a pair of iron-containing organometallic species with interesting electronic and structural properties.
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Affiliation(s)
| | - Thomas Elder
- USDA-Forest Service
- Southern Research Station
- Auburn
- USA
| | - William W. Brennessel
- X-ray Crystallographic Facility
- Department of Chemistry
- University of Rochester
- Rochester
- USA
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40
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Wang L, Sun H, Li X. Synthesis of Iron Hydrides by Selective C-F/C-H Bond Activation in Fluoroarylimines and Their Applications in Catalytic Reduction Reactions. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500313] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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41
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Volkov A, Gustafson KPJ, Tai CW, Verho O, Bäckvall JE, Adolfsson H. Mild deoxygenation of aromatic ketones and aldehydes over Pd/C using polymethylhydrosiloxane as the reducing agent. Angew Chem Int Ed Engl 2015; 54:5122-6. [PMID: 25728614 PMCID: PMC4471587 DOI: 10.1002/anie.201411059] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 01/22/2015] [Indexed: 11/09/2022]
Abstract
Herein, a practical and mild method for the deoxygenation of a wide range of benzylic aldehydes and ketones is described, which utilizes heterogeneous Pd/C as the catalyst together with the green hydride source, polymethylhydrosiloxane. The developed catalytic protocol is scalable and robust, as exemplified by the deoxygenation of ethyl vanillin, which was performed on a 30 mmol scale in an open-to-air setup using only 0.085 mol % Pd/C catalyst to furnish the corresponding deoxygenated product in 93 % yield within 3 hours at room temperature. Furthermore, the Pd/C catalyst was shown to be recyclable up to 6 times without any observable decrease in efficiency and it exhibited low metal leaching under the reaction conditions.
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Affiliation(s)
- Alexey Volkov
- Department of Organic Chemistry, Stockholm UniversitySE-106 91, Stockholm (Sweden)
| | - Karl P J Gustafson
- Department of Organic Chemistry, Stockholm UniversitySE-106 91, Stockholm (Sweden)
| | - Cheuk-Wai Tai
- Department of Materials and Environmental Chemistry, Arrhenius LaboratoryStockholm University, SE-106 91, Stockholm (Sweden)
| | - Oscar Verho
- Department of Organic Chemistry, Stockholm UniversitySE-106 91, Stockholm (Sweden)
| | - Jan-E Bäckvall
- Department of Organic Chemistry, Stockholm UniversitySE-106 91, Stockholm (Sweden)
| | - Hans Adolfsson
- Department of Organic Chemistry, Stockholm UniversitySE-106 91, Stockholm (Sweden)
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42
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43
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Affiliation(s)
- Ingmar Bauer
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
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44
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Volkov A, Gustafson KPJ, Tai CW, Verho O, Bäckvall JE, Adolfsson H. Mild Deoxygenation of Aromatic Ketones and Aldehydes over Pd/C Using Polymethylhydrosiloxane as the Reducing Agent. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411059] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Kovalenko OO, Volkov A, Adolfsson H. Mild and selective Et2Zn-catalyzed reduction of tertiary amides under hydrosilylation conditions. Org Lett 2015; 17:446-9. [PMID: 25587664 DOI: 10.1021/ol503430t] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Diethylzinc (Et2Zn) can be used as an efficient and chemoselective catalyst for the reduction of tertiary amides under mild reaction conditions employing cost-effective polymeric silane (PMHS) as the hydride source. Crucial for the catalytic activity was the addition of a substoichiometric amount of lithium chloride to the reaction mixture. A series of amides containing different additional functional groups were reduced to their corresponding amines, and the products were isolated in good-to-excellent yields.
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Affiliation(s)
- Oleksandr O Kovalenko
- Department of Organic Chemistry, Arrhenius Laboratory Stockholm University , SE-106 91, Stockholm, Sweden
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46
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Savela R, Wärnå J, Murzin DY, Leino R. Iron catalyzed halogenation of benzylic aldehydes and ketones. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00067j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple iron-catalyzed method for halogenation of aromatic carbonyl compounds in one step has been developed, combined with mechanistic investigation.
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Affiliation(s)
- Risto Savela
- Johan Gadolin Process Chemistry Centre
- Laboratory of Organic Chemistry
- Åbo Akademi University
- 20500 Åbo
- Finland
| | - Johan Wärnå
- Johan Gadolin Process Chemistry Centre
- Industrial Chemistry and Reaction Engineering
- Åbo Akademi University
- 20500 Åbo
- Finland
| | - Dmitry Yu. Murzin
- Johan Gadolin Process Chemistry Centre
- Industrial Chemistry and Reaction Engineering
- Åbo Akademi University
- 20500 Åbo
- Finland
| | - Reko Leino
- Johan Gadolin Process Chemistry Centre
- Laboratory of Organic Chemistry
- Åbo Akademi University
- 20500 Åbo
- Finland
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47
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48
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Wang Y, Zhang T, Li B, Jiang S, Sheng L. Synthesis, characterization, electrochemical properties and catalytic reactivity of N-heterocyclic carbene-containing diiron complexes. RSC Adv 2015. [DOI: 10.1039/c4ra15150j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Four new [Fe–Fe]–NHC complexes were synthesized and used as highly selective homogeneous catalysts for the direct hydroxylation of benzene to phenol.
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Affiliation(s)
- Yanhong Wang
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Tianyong Zhang
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Bin Li
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Shuang Jiang
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Liao Sheng
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300072
- China
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49
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Kovalenko OO, Adolfsson H. Highly Efficient and Chemoselective Zinc-Catalyzed Hydrosilylation of Esters under Mild Conditions. Chemistry 2014; 21:2785-8. [DOI: 10.1002/chem.201406176] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Indexed: 11/08/2022]
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50
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Volkov A, Tinnis F, Slagbrand T, Pershagen I, Adolfsson H. Mo(CO)6catalysed chemoselective hydrosilylation of α,β-unsaturated amides for the formation of allylamines. Chem Commun (Camb) 2014; 50:14508-11. [DOI: 10.1039/c4cc07150f] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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