1
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He Y, Shi L, Dong B, Zhao G, Li F. β-Methylation of Primary Alcohols with Methanol Catalyzed by a Metal-Ligand Bifunctional Iridium Catalyst. J Org Chem 2024. [PMID: 39087433 DOI: 10.1021/acs.joc.4c01323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
The development of efficient methods for the direct introduction of a methyl group into molecules is becoming increasingly important. Herein, the β-methylation of primary alcohols with methanol has been accomplished under environmentally benign conditions using [Cp*Ir(2,2'-bpyO)(H2O)] as a catalyst. It was found that functional groups in the ligand are crucially important for the activity of the iridium complex. Furthermore, the mechanistic research and application potential of our catalytic system are also presented.
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Affiliation(s)
- Yiqian He
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Lili Shi
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Beixuan Dong
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Guoqiang Zhao
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Feng Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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2
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Tang J, He J, Zhao SY, Liu W. Manganese-Catalyzed Chemoselective Coupling of Secondary Alcohols, Primary Alcohols and Methanol. Angew Chem Int Ed Engl 2023; 62:e202215882. [PMID: 36847452 DOI: 10.1002/anie.202215882] [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: 10/28/2022] [Revised: 02/22/2023] [Accepted: 02/27/2023] [Indexed: 03/01/2023]
Abstract
Herein, we report a manganese-catalyzed three-component coupling of secondary alcohols, primary alcohols and methanol for the synthesis of β,β-methylated/alkylated secondary alcohols. Using our method, a series of 1-arylethanol, benzyl alcohol derivatives, and methanol undergo sequential coupling efficiently to construct assembled alcohols with high chemoselectivity in moderate to good yields. Mechanistic studies suggest that the reaction proceeds via methylation of a benzylated secondary alcohol intermediate to generate the final product.
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Affiliation(s)
- Jun Tang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Jingxi He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Sheng-Yin Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
| | - Weiping Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai, 201620, China
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3
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Zeng G, Wu J, Shen L, Zheng Q, Chen ZN, Xu X, Tu T. Modular Access to Quaternary α-Hydroxyl Acetates by Catalytic Cross-Coupling of Alcohols. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Guangkuo Zeng
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Jiajie Wu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Lingyun Shen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Qingshu Zheng
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Zhe-Ning Chen
- Collaborative Innovation Center of Chemistry for Energy Materials, MOE Laboratory for Computational Physical Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Xin Xu
- Collaborative Innovation Center of Chemistry for Energy Materials, MOE Laboratory for Computational Physical Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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4
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Sheetal, Mehara P, Das P. Methanol as a greener C1 synthon under non-noble transition metal-catalyzed conditions. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Yang X, Tian X, Sun N, Hu B, Shen Z, Hu X, Jin L. Geometry-Constrained N, N, O-Nickel Catalyzed α-Alkylation of Unactivated Amides via a Borrowing Hydrogen Strategy. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Xue Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, P. R. China
| | - Xiaoyu Tian
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, P. R. China
| | - Nan Sun
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, P. R. China
| | - Baoxiang Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, P. R. China
| | - Zhenlu Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, P. R. China
| | - Xinquan Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, P. R. China
| | - Liqun Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, The Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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6
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Kumar A, Daw P, Milstein D. Homogeneous Catalysis for Sustainable Energy: Hydrogen and Methanol Economies, Fuels from Biomass, and Related Topics. Chem Rev 2022; 122:385-441. [PMID: 34727501 PMCID: PMC8759071 DOI: 10.1021/acs.chemrev.1c00412] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Indexed: 02/08/2023]
Abstract
As the world pledges to significantly cut carbon emissions, the demand for sustainable and clean energy has now become more important than ever. This includes both production and storage of energy carriers, a majority of which involve catalytic reactions. This article reviews recent developments of homogeneous catalysts in emerging applications of sustainable energy. The most important focus has been on hydrogen storage as several efficient homogeneous catalysts have been reported recently for (de)hydrogenative transformations promising to the hydrogen economy. Another direction that has been extensively covered in this review is that of the methanol economy. Homogeneous catalysts investigated for the production of methanol from CO2, CO, and HCOOH have been discussed in detail. Moreover, catalytic processes for the production of conventional fuels (higher alkanes such as diesel, wax) from biomass or lower alkanes have also been discussed. A section has also been dedicated to the production of ethylene glycol from CO and H2 using homogeneous catalysts. Well-defined transition metal complexes, in particular, pincer complexes, have been discussed in more detail due to their high activity and well-studied mechanisms.
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Affiliation(s)
- Amit Kumar
- School
of Chemistry, University of St. Andrews, North Haugh, Fife, U.K., KY16 9ST
| | - Prosenjit Daw
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Berhampur, Govt. ITI (transit Campus), Berhampur 760010, India
| | - David Milstein
- Department
of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
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7
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Aghdam RM, Sharafshadeh SA, Amirsardari Z. Controlling the Substituents on the Surface Modification of Support for Catalytic Iridium Improvement. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023621140126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Sherief N, Anand M, Ramachandran M, Vidhya P. A Review on Various Biofuels and its Applications. 1 2022; 8:1-9. [DOI: 10.46632/jemm/8/1/1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Biofuels derived from biofuels, plant or algae or animal wastes. Unlike fossil fuels such as petroleum, coal and natural gas, refilled immediately. Biofuels are fuels made from recently harvested plants. They act like fossil fuels: they burn when ignited, releasing energy that can be converted into kinetic energy in a car, or heat a home. Biofuels can
be obtained from a variety of crops and from a wide range of plant products from other industries. Not only is biodiesel stable, it is also a highly environmentally friendly, clean burning option that can be used without modification in diesel engines. In fact, biodiesel reduces greenhouse gas emissions by 56% to 86%, which means that the use of biodiesel has already reduced carbon emissions by 75.5 million metric tons. Many countries promote the use of biodiesel. In 2001, global biodiesel consumption was approximately 0.3 billion gallons. Based on the raw material, biofuels are divided
into four groups: third, fourth (FGBs), first biodiesel, which is the only is a locally produced, clean-burning, renewable alternative to petroleum diesel. The use of biodiesel as a vehicle fuel enhances energy conservation, improves air quality and the environment, and provides safety benefits. Biofuels are transport fuels such as ethanol and biomass based diesel fuels. These fuels are usually blended with petroleum fuels (petrol and distillation / diesel fuel and heating oil), but can also be used on their own. Scientists have found that, in practice, biofuels produced from agricultural crops
cause less pollution and greenhouse gas emissions than conventional fossil fuels, causing some environmental problems. Biofuels can also affect the poor. Various problems arise due to high prices for crops. It can go from improved water quality to creating new jobs in economically backward areas. Some applications of bioenergy require a feed based on residues from dedicated field production (such as energy crops) or agricultural production. However, many plant species grown for biofuels release higher levels of the ozone precursor isoprene than conventional crops and plants. Excess ozone poses a well-documented risk to human health, with 22,000 premature deaths each year linked to ground ozone exposure in Europe.
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Affiliation(s)
- Nisha Sherief
- Department of Mechanbical Engineering, Jyothi Engineering College, Thrissur, India
| | - M Anand
- R&D Division, Institute for Science, Engineering and Technology Research, India
| | - M Ramachandran
- REST LABS, Kaveripattinam, Krishnagiri, Tamil Nadu, India
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9
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Sarki N, Goyal V, Natte K, Jagadeesh RV. Base Metal‐Catalyzed C‐Methylation Reactions Using Methanol. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100762] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Naina Sarki
- Chemical and Material Science Division CSIR – Indian Institute of Petroleum Haridwar road, Mohkampur Dehradun 248005 India
| | - Vishakha Goyal
- Chemical and Material Science Division CSIR – Indian Institute of Petroleum Haridwar road, Mohkampur Dehradun 248005 India
| | - Kishore Natte
- Chemical and Material Science Division CSIR – Indian Institute of Petroleum Haridwar road, Mohkampur Dehradun 248005 India
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10
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Biswas N, Srimani D. Ru-Catalyzed Selective Catalytic Methylation and Methylenation Reaction Employing Methanol as the C1 Source. J Org Chem 2021; 86:10544-10554. [PMID: 34263597 DOI: 10.1021/acs.joc.1c01185] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Methanol can be employed as a green and sustainable methylating agent to form C-C and C-N bonds via borrowing hydrogen (BH) methodology. Herein we explored the activity of the acridine-derived SNS-Ru pincer for the activation of methanol to apply it as a C1 building block in different reactions. Our catalytic system shows great success toward the β-C(sp3)-methylation reaction of 2-phenylethanols to provide good to excellent yields of the methylated products. We investigated the mechanistic details, kinetic progress, and temperature-dependent product distribution, which revealed the slow and steady generation of in situ formed aldehyde, is the key factor to get the higher yield of the β-methylated product. To establish the environmental benefit of this reaction, green chemistry metrics are calculated. Furthermore, dimerization of 2-naphthol via methylene linkage and formation of N-methylation of amine are also described in this study, which offers a wide range of substrate scope with a good to excellent yield.
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Affiliation(s)
- Nandita Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
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11
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Elucidating the Influence of the d-Band Center on the Synthesis of Isobutanol. Catalysts 2021. [DOI: 10.3390/catal11030406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
As the search for carbon-efficient synthesis pathways for green alternatives to fossil fuels continues, an expanding class of catalysts have been developed for the upgrading of lower alcohols. Understanding of the acid base functionalities has greatly influenced the search for new materials, but the influence of the metal used in catalysts cannot be explained in a broader sense. We address this herein and correlate our findings with the most fundamental understanding of chemistry to date by applying it to d-band theory as part of an experimental investigation. The commercial catalysts of Pt, Rh, Ru, Cu, Pd, and Ir on carbon as a support have been characterized by means of SEM, EDX-mapping, STEM, XRD, N2-physisorption, and H2-chemisorption. Their catalytic activity has been established by means of c-methylation of ethanol with methanol. For all catalysts, the TOF with respect to i-butanol was examined. The Pt/C reached the highest TOF with a selectivity towards i-butanol of 89%. The trend for the TOFs could be well correlated with the d-band centers of the metal, which formed a volcano curve. Therefore, this study is another step towards the rationalization of catalyst design for the upgrading of alcohols into carbon-neutral fuels or chemical feedstock.
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12
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Kobayashi M, Yamaguchi H, Suzuki T, Obora Y. Cross β-alkylation of primary alcohols catalysed by DMF-stabilized iridium nanoparticles. Org Biomol Chem 2021; 19:1950-1954. [PMID: 33595578 DOI: 10.1039/d1ob00045d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A simple method for the cross β-alkylation of linear alcohols with benzyl alcohols in the presence of DMF-stabilized iridium nanoparticles was developed. The nanoparticles were prepared in one-step and thoroughly characterized. Furthermore, the optimum reaction conditions have a wide substrate scope and excellent product selectivity.
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Affiliation(s)
- Masaki Kobayashi
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan. obora@ kansai-u.ac.jp
| | - Hiroki Yamaguchi
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan. obora@ kansai-u.ac.jp
| | - Takeyuki Suzuki
- Comprehensive Analysis Center, The Institute of Scientific and Industrial Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0057, Japan
| | - Yasushi Obora
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan. obora@ kansai-u.ac.jp
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13
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Aynetdinova D, Callens MC, Hicks HB, Poh CYX, Shennan BDA, Boyd AM, Lim ZH, Leitch JA, Dixon DJ. Installing the “magic methyl” – C–H methylation in synthesis. Chem Soc Rev 2021; 50:5517-5563. [DOI: 10.1039/d0cs00973c] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Following notable cases of remarkable potency increases in methylated analogues of lead compounds, this review documents the state-of-the-art in C–H methylation technology.
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Affiliation(s)
- Daniya Aynetdinova
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Mia C. Callens
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Harry B. Hicks
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Charmaine Y. X. Poh
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | | | - Alistair M. Boyd
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Zhong Hui Lim
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Jamie A. Leitch
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Darren J. Dixon
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
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14
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Kabadwal LM, Bera S, Banerjee D. Recent advances in sustainable organic transformations using methanol: expanding the scope of hydrogen-borrowing catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo01412a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Recent progress relating to sustainable approaches using methanol as a C1-alkylating agent for C–Me and N–Me bond formation is discussed.
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Affiliation(s)
- Lalit Mohan Kabadwal
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
| | - Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
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15
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Schlagbauer M, Kallmeier F, Irrgang T, Kempe R. Manganese-Catalyzed β-Methylation of Alcohols by Methanol. Angew Chem Int Ed Engl 2020; 59:1485-1490. [PMID: 31743576 PMCID: PMC7003965 DOI: 10.1002/anie.201912055] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/12/2019] [Indexed: 01/02/2023]
Abstract
We report an earth-abundant-metal-catalyzed double and single methylation of alcohols. A manganese catalyst, which operates at low catalyst loadings and short reaction times, mediates these reactions efficiently. A broad scope of primary and secondary alcohols, including purely aliphatic examples, and 1,2-aminoalcohols can be methylated. Furthermore, alcohol methylation for the synthesis of pharmaceuticals has been demonstrated. The catalyst system tolerates many functional groups among them hydrogenation-sensitive examples and upscaling is easily achieved. Mechanistic investigations are indicative of a borrowing hydrogen or hydrogen autotransfer mechanism involving a bimetallic K-Mn catalyst. The catalyst accepts hydrogen as a proton and a hydride from alcohols efficiently and reacts with a chalcone via hydride transfer.
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Affiliation(s)
- Martin Schlagbauer
- Inorganic Chemistry II—Catalyst DesignUniversity of Bayreuth95440BayreuthGermany
| | - Fabian Kallmeier
- Inorganic Chemistry II—Catalyst DesignUniversity of Bayreuth95440BayreuthGermany
| | - Torsten Irrgang
- Inorganic Chemistry II—Catalyst DesignUniversity of Bayreuth95440BayreuthGermany
| | - Rhett Kempe
- Inorganic Chemistry II—Catalyst DesignUniversity of Bayreuth95440BayreuthGermany
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16
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Kaithal A, Schmitz M, Hölscher M, Leitner W. On the Mechanism of the Ruthenium‐catalyzed
β
‐methylation of Alcohols with Methanol. ChemCatChem 2020. [DOI: 10.1002/cctc.201901871] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Akash Kaithal
- Institut für Technische und Makromolekulare ChemieRWTH Aachen University Worringer Weg 2 Aachen 52074 Germany
| | - Marc Schmitz
- Institut für Technische und Makromolekulare ChemieRWTH Aachen University Worringer Weg 2 Aachen 52074 Germany
| | - Markus Hölscher
- Institut für Technische und Makromolekulare ChemieRWTH Aachen University Worringer Weg 2 Aachen 52074 Germany
| | - Walter Leitner
- Institut für Technische und Makromolekulare ChemieRWTH Aachen University Worringer Weg 2 Aachen 52074 Germany
- Max Planck Institute for Chemical Energy Conversion Stiftstraße 34–36 Mülheim/Ruhr 45470 Germany
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17
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Kaithal A, van Bonn P, Hölscher M, Leitner W. Manganese(I)-Catalyzed β-Methylation of Alcohols Using Methanol as C 1 Source. Angew Chem Int Ed Engl 2020; 59:215-220. [PMID: 31651071 PMCID: PMC6973237 DOI: 10.1002/anie.201909035] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/27/2019] [Indexed: 01/01/2023]
Abstract
Highly selective β-methylation of alcohols was achieved using an earth-abundant first row transition metal in the air stable molecular manganese complex [Mn(CO)2 Br[HN(C2 H4 Pi Pr2 )2 ]] 1 ([HN(C2 H4 Pi Pr2 )2 ]=MACHO-i Pr). The reaction requires only low loadings of 1 (0.5 mol %), methanolate as base and MeOH as methylation reagent as well as solvent. Various alcohols were β-methylated with very good selectivity (>99 %) and excellent yield (up to 94 %). Biomass derived aliphatic alcohols and diols were also selectively methylated on the β-position, opening a pathway to "biohybrid" molecules constructed entirely from non-fossil carbon. Mechanistic studies indicate that the reaction proceeds through a borrowing hydrogen pathway involving metal-ligand cooperation at the Mn-pincer complex. This transformation provides a convenient, economical, and environmentally benign pathway for the selective C-C bond formation with potential applications for the preparation of advanced biofuels, fine chemicals, and biologically active molecules.
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Affiliation(s)
- Akash Kaithal
- Institut für Technische und Makromolekulare ChemieRWTH Aachen UniversityWorringer Weg 252074AachenGermany
| | - Pit van Bonn
- Institut für Technische und Makromolekulare ChemieRWTH Aachen UniversityWorringer Weg 252074AachenGermany
| | - Markus Hölscher
- Institut für Technische und Makromolekulare ChemieRWTH Aachen UniversityWorringer Weg 252074AachenGermany
| | - Walter Leitner
- Institut für Technische und Makromolekulare ChemieRWTH Aachen UniversityWorringer Weg 252074AachenGermany
- Max-Planck-Institut für chemische EnergiekonversionStiftstraße 34–3645470Mülheim a.d. RuhrGermany
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18
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Schlagbauer M, Kallmeier F, Irrgang T, Kempe R. Manganese‐Catalyzed β‐Methylation of Alcohols by Methanol. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912055] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Martin Schlagbauer
- Inorganic Chemistry II—Catalyst Design University of Bayreuth 95440 Bayreuth Germany
| | - Fabian Kallmeier
- Inorganic Chemistry II—Catalyst Design University of Bayreuth 95440 Bayreuth Germany
| | - Torsten Irrgang
- Inorganic Chemistry II—Catalyst Design University of Bayreuth 95440 Bayreuth Germany
| | - Rhett Kempe
- Inorganic Chemistry II—Catalyst Design University of Bayreuth 95440 Bayreuth Germany
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19
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Kaithal A, Bonn P, Hölscher M, Leitner W. Manganese(I)‐Catalyzed β‐Methylation of Alcohols Using Methanol as C
1
Source. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909035] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Akash Kaithal
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Pit Bonn
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Markus Hölscher
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Walter Leitner
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
- Max-Planck-Institut für chemische Energiekonversion Stiftstraße 34–36 45470 Mülheim a.d. Ruhr Germany
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20
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Abstract
β-Branched alkylated alcohols have been prepared in good yields using a double-hydrogen autotransfer strategy in the presence of our diaminocyclopentadienone iron tricarbonyl complex Fe1. The alkylation of some 2-arylethanol derivatives was successfully addressed with benzylic alcohols and methanol as alkylating reagents under mild conditions. Deuterium labeling experiments suggested that both alcohols (2-arylethanol and either methanol or benzyl alcohol) served as hydrogen donors in this cascade process.
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Affiliation(s)
- Léo Bettoni
- Normandie Univ., LCMT, ENSICAEN, UNICAEN, CNRS , 6 boulevard du Maréchal Juin , 14000 Caen , France
| | - Sylvain Gaillard
- Normandie Univ., LCMT, ENSICAEN, UNICAEN, CNRS , 6 boulevard du Maréchal Juin , 14000 Caen , France
| | - Jean-Luc Renaud
- Normandie Univ., LCMT, ENSICAEN, UNICAEN, CNRS , 6 boulevard du Maréchal Juin , 14000 Caen , France
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21
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Rice KM, Ginjupalli GK, Manne NDPK, Jones CB, Blough ER. A review of the antimicrobial potential of precious metal derived nanoparticle constructs. NANOTECHNOLOGY 2019; 30:372001. [PMID: 30840941 DOI: 10.1088/1361-6528/ab0d38] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The field of nanotechnology is rapidly growing. The promise of pharmacotherapeutics emerging from this vast field has drawn the attention of many researchers. However, with the increase in the prevalence of antibiotic resistant microorganisms, the manifestations of these promises are needed now more than ever. Many have postulated the antimicrobial potential of nanoparticle constructs derived from precious metals/noble metals nanoparticles (NMNPs), such as silver nanoparticles that show activity against multidrug resistant bacteria. In this review we will evaluate the current studies and explore the data to obtain a clear picture of the potential of these particles and the validity of the claims of drug resistant treatments with NMNPs.
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Affiliation(s)
- Kevin M Rice
- Center for Diagnostic Nanosystems, Marshall University, Huntington, WV, United States of America. Department of Internal Medicine, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States of America. Biotechnology Graduate Program West Virginia State University, Institute, WV, United States of America. Department of Health and Human Service, School of Kinesiology, Marshall University, Huntington, WV, United States of America
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22
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Polidano K, Williams JMJ, Morrill LC. Iron-Catalyzed Borrowing Hydrogen β- C(sp 3)-Methylation of Alcohols. ACS Catal 2019; 9:8575-8580. [PMID: 32064149 PMCID: PMC7011770 DOI: 10.1021/acscatal.9b02461] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/30/2019] [Indexed: 12/26/2022]
Abstract
Herein we report the iron-catalyzed β-C(sp3)-methylation of primary alcohols using methanol as a C1 building block. This borrowing hydrogen approach employs a well-defined bench-stable (cyclopentadienone)iron(0) carbonyl complex as precatalyst (5 mol %) and enables a diverse selection of substituted 2-arylethanols to undergo β-C(sp3)-methylation in good isolated yields (24 examples, 65% average yield).
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Affiliation(s)
- Kurt Polidano
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K.
| | | | - Louis C. Morrill
- Cardiff
Catalysis Institute, School of Chemistry,
Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K.
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23
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Liu Y, Shao Z, Wang Y, Xu L, Yu Z, Liu Q. Manganese-Catalyzed Selective Upgrading of Ethanol with Methanol into Isobutanol. CHEMSUSCHEM 2019; 12:3069-3072. [PMID: 30724026 DOI: 10.1002/cssc.201802689] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/28/2019] [Indexed: 06/09/2023]
Abstract
Isobutanol serves as an ideal gasoline additive owing to its good compatibility with current engine technology, high energy density, and high octane number. Herein, an efficient and selective Mn-catalyzed upgrading of ethanol with methanol into isobutanol is reported. This is the first example of deoxygenative coupling of lower alcohols to isobutanol by using a homogeneous non-noble-metal catalyst. This transformation proceeded at very low catalyst loading with a high turnover number (9233) and up to 96 % isobutanol selectivity.
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Affiliation(s)
- Yaqian Liu
- Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, P.R. China
| | - Zhihui Shao
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, P.R. China
| | - Yujie Wang
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, P.R. China
| | - Lijin Xu
- Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China
| | - Zhiyong Yu
- Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China
| | - Qiang Liu
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, P.R. China
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24
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Kaithal A, Schmitz M, Hölscher M, Leitner W. Ruthenium(II)‐Catalyzed
β
‐Methylation of Alcohols using Methanol as C
1
Source. ChemCatChem 2019. [DOI: 10.1002/cctc.201900788] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Akash Kaithal
- Lehrstuhl für Technische Chemie und PetrolchemieRWTH Aachen University Worringer Weg 2 52074 Aachen
| | - Marc Schmitz
- Lehrstuhl für Technische Chemie und PetrolchemieRWTH Aachen University Worringer Weg 2 52074 Aachen
| | - Markus Hölscher
- Lehrstuhl für Technische Chemie und PetrolchemieRWTH Aachen University Worringer Weg 2 52074 Aachen
| | - Walter Leitner
- Lehrstuhl für Technische Chemie und PetrolchemieRWTH Aachen University Worringer Weg 2 52074 Aachen
- Max-Planck-Institut für chemische Energiekonversion Stiftstraße 34–36 45470 Mülheim a. d. Ruhr
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25
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Fu A, Liu Q, Jiang M, Xu G. Selective N‐Monomethylation of Amines and Nitroarenes using Methanol over an Encapsulated Iridium Nanocatalyst. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900140] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Aixiao Fu
- CAS Key Laboratory of Bio-based MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Qiang Liu
- CAS Key Laboratory of Bio-based MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 P. R. China
| | - Mingxiang Jiang
- School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P. R. China
| | - Guoqiang Xu
- CAS Key Laboratory of Bio-based MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 P. R. China
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26
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27
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Manojveer S, Salahi S, Wendt OF, Johnson MT. Ru-Catalyzed Cross-Dehydrogenative Coupling between Primary Alcohols to Guerbet Alcohol Derivatives: with Relevance for Fragrance Synthesis. J Org Chem 2018; 83:10864-10870. [DOI: 10.1021/acs.joc.8b01558] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Seetharaman Manojveer
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Saleh Salahi
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155, 6455 Tehran, Iran
| | - Ola F. Wendt
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Magnus T. Johnson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
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