51
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Zhang Z, Qiu C, Xu Y, Han Q, Tang J, Loh KP, Su C. Semiconductor photocatalysis to engineering deuterated N-alkyl pharmaceuticals enabled by synergistic activation of water and alkanols. Nat Commun 2020; 11:4722. [PMID: 32948764 PMCID: PMC7501254 DOI: 10.1038/s41467-020-18458-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 08/11/2020] [Indexed: 12/23/2022] Open
Abstract
Precisely controlled deuterium labeling at specific sites of N-alkyl drugs is crucial in drug-development as over 50% of the top-selling drugs contain N-alkyl groups, in which it is very challenging to selectively replace protons with deuterium atoms. With the goal of achieving controllable isotope-labeling in N-alkylated amines, we herein rationally design photocatalytic water-splitting to furnish [H] or [D] and isotope alkanol-oxidation by photoexcited electron-hole pairs on a polymeric semiconductor. The controlled installation of N-CH3, -CDH2, -CD2H, -CD3, and -13CH3 groups into pharmaceutical amines thus has been demonstrated by tuning isotopic water and methanol. More than 50 examples with a wide range of functionalities are presented, demonstrating the universal applicability and mildness of this strategy. Gram-scale production has been realized, paving the way for the practical photosynthesis of pharmaceuticals.
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Affiliation(s)
- Zhaofei Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoeletronics, Shenzhen University, 518060, Shenzhen, China
| | - Chuntian Qiu
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoeletronics, Shenzhen University, 518060, Shenzhen, China
| | - Yangsen Xu
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoeletronics, Shenzhen University, 518060, Shenzhen, China
| | - Qing Han
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
- Key Laboratory of Photoelectronic/Electrophotonic, Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology, 100081, Beijing, China
| | - Junwang Tang
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Kian Ping Loh
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Chenliang Su
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale Optoeletronics, Shenzhen University, 518060, Shenzhen, China.
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52
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Sklyaruk J, Zubar V, Borghs JC, Rueping M. Methanol as the Hydrogen Source in the Selective Transfer Hydrogenation of Alkynes Enabled by a Manganese Pincer Complex. Org Lett 2020; 22:6067-6071. [DOI: 10.1021/acs.orglett.0c02151] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jan Sklyaruk
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Viktoriia Zubar
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Jannik C. Borghs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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53
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Hu X, Shao Y, Xie H, Chen X, Chen F, Ke Z, Jiang H, Zeng W. Direct Carbon–Carbon σ Bond Amination of Unstrained Arylalkylketones. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02683] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xinwei Hu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Youxiang Shao
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Haisheng Xie
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Xin Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Fengjuan Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Zhuofeng Ke
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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54
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Genç S, Gülcemal S, Günnaz S, Çetinkaya B, Gülcemal D. Iridium-Catalyzed Alkylation of Secondary Alcohols with Primary Alcohols: A Route to Access Branched Ketones and Alcohols. J Org Chem 2020; 85:9139-9152. [DOI: 10.1021/acs.joc.0c01099] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sertaç Genç
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | | | - Salih Günnaz
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | - Bekir Çetinkaya
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | - Derya Gülcemal
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
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55
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Jin J, Tong J, Yu W, Qiao J, Shen C. Iodobenzene-catalyzed oxidative C H d-alkoxylation of quinoxalinones with deuterated alcohols. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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56
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Lan XB, Ye Z, Liu J, Huang M, Shao Y, Cai X, Liu Y, Ke Z. Sustainable and Selective Alkylation of Deactivated Secondary Alcohols to Ketones by Non-bifunctional Pincer N-heterocyclic Carbene Manganese. CHEMSUSCHEM 2020; 13:2557-2563. [PMID: 32233008 DOI: 10.1002/cssc.202000576] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Indexed: 06/10/2023]
Abstract
A sustainable and green route to access diverse functionalized ketones via dehydrogenative-dehydrative cross-coupling of primary and secondary alcohols is demonstrated. This borrowing hydrogen approach employing a pincer N-heterocyclic carbene Mn complex displays high activity and selectivity. A variety of primary and secondary alcohols are well tolerant and result in satisfactory isolated yields. Mechanistic studies suggest that this reaction proceeds via a direct outer-sphere mechanism and the dehydrogenation of the secondary alcohol substrates plays a vital role in the rate-limiting step.
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Affiliation(s)
- Xiao-Bing Lan
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Zongren Ye
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Jiahao Liu
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Ming Huang
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Youxiang Shao
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Xiang Cai
- Department of Light Chemical Engineering, Guangdong Polytechnic, Foshan, 528041, P. R. China
| | - Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
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57
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Borghs JC, Zubar V, Azofra LM, Sklyaruk J, Rueping M. Manganese-Catalyzed Regioselective Dehydrogenative C- versus N-Alkylation Enabled by a Solvent Switch: Experiment and Computation. Org Lett 2020; 22:4222-4227. [DOI: 10.1021/acs.orglett.0c01270] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jannik C. Borghs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Viktoriia Zubar
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Luis Miguel Azofra
- CIDIA-FEAM (Unidad Asociada al Consejo Superior de Investigaciones Científicas, CSIC, avalada por el Instituto de Ciencia de Materiales de Sevilla, Universidad de Sevilla), Instituto de Estudios Ambientales y Recursos Naturales (i-UNAT), Universidad de Las Palmas de Gran Canaria (ULPGC), Campus de Tafira, 35017 Las Palmas de Gran Canaria, Spain
| | - Jan Sklyaruk
- 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
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
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58
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Zubar V, Borghs JC, Rueping M. Hydrogenation or Dehydrogenation of N-Containing Heterocycles Catalyzed by a Single Manganese Complex. Org Lett 2020; 22:3974-3978. [DOI: 10.1021/acs.orglett.0c01273] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Viktoriia Zubar
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Jannik C. Borghs
- 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
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
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59
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Magre M, Szewczyk M, Rueping M. N-Methylation and Trideuteromethylation of Amines via Magnesium-Catalyzed Reduction of Cyclic and Linear Carbamates. Org Lett 2020; 22:3209-3214. [PMID: 32216366 DOI: 10.1021/acs.orglett.0c00988] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new reduction of carbamates to N-methyl amines is presented. The magnesium-catalyzed reduction reaction allows the conversion of cyclic and linear carbamates, including N-Boc protected amines, into the corresponding N-methyl amines and amino alcohols which are of significant interest due to their presence in many biologically active molecules. Furthermore, the reduction can be extended to the formation of N-trideuteromethyl labeled amines.
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Affiliation(s)
- Marc Magre
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Marcin Szewczyk
- 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.,KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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60
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Brzozowska A, Zubar V, Ganardi RC, Rueping M. Chemoselective Hydroboration of Propargylic Alcohols and Amines Using a Manganese(II) Catalyst. Org Lett 2020; 22:3765-3769. [DOI: 10.1021/acs.orglett.0c00941] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aleksandra Brzozowska
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Viktoriia Zubar
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Ruth-Christine Ganardi
- 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
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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61
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Rohit KR, Radhika S, Saranya S, Anilkumar G. Manganese‐Catalysed Dehydrogenative Coupling – An Overview. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901389] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- K. R. Rohit
- School of Chemical SciencesMahatma Gandhi University Kottayam Kerala 686560 India
| | - Sankaran Radhika
- School of Chemical SciencesMahatma Gandhi University Kottayam Kerala 686560 India
| | - Salim Saranya
- School of Chemical SciencesMahatma Gandhi University Kottayam Kerala 686560 India
| | - Gopinathan Anilkumar
- School of Chemical SciencesMahatma Gandhi University Kottayam Kerala 686560 India
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62
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Ding T, Jiang L, Yi W. Synthesis of difluoromethyl and deuterium-labeled difluoromethyl thioethers from aliphatic electrophiles. Chem Commun (Camb) 2020; 56:3995-3998. [PMID: 32154520 DOI: 10.1039/c9cc09709k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A one-pot difluoromethylthiolation of alkyl electrophiles with thiourea and diethyl bromodifluoromethylphosphonate is described. The transition-metal-free approach, readily available reagents, and mild conditions provide a practical way for the synthesis of difluoromethyl thioethers. By changing the "H" source to the most commonly used "D" sources CD3OD and D2O, this strategy enables efficient synthesis of SCF2D-substituted molecules in good yields with high levels of D incorporation.
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Affiliation(s)
- Tianqi Ding
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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63
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Gouthami P, Karteek Goud G, Mainkar PS, Chandrasekhar S. Rapid and one-pot synthesis of tri- to tetradeca-deutero nicotines. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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64
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Bettoni L, Gaillard S, Renaud JL. Iron-Catalyzed α-Alkylation of Ketones with Secondary Alcohols: Access to β-Disubstituted Carbonyl Compounds. Org Lett 2020; 22:2064-2069. [PMID: 32091220 DOI: 10.1021/acs.orglett.0c00549] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An iron-catalyzed borrowing hydrogen strategy has been applied in the synthesis of β-branched carbonyl compounds. Various secondary benzylic and aliphatic alcohols have been used as alkylating reagents under mild reaction conditions. The ketones have been isolated in good to excellent yield. Deuterium labeling experiments provide evidence that the alcohol is the hydride source in this reaction and that no reversible step or hydrogen/deuterium scrambling takes place during the 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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65
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Reed-Berendt BG, Mast N, Morrill LC. Manganese-Catalyzed One-Pot Conversion of Nitroarenes into N
-Methylarylamines Using Methanol. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901854] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Benjamin G. Reed-Berendt
- Cardiff Catalysis Institute; School of Chemistry; Cardiff University; Main Building, Park Place CF10 3AT Cardiff U.K
| | - Nicolas Mast
- Cardiff Catalysis Institute; School of Chemistry; Cardiff University; Main Building, Park Place CF10 3AT Cardiff U.K
| | - Louis C. Morrill
- Cardiff Catalysis Institute; School of Chemistry; Cardiff University; Main Building, Park Place CF10 3AT Cardiff U.K
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66
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Jana A, Das K, Kundu A, Thorve PR, Adhikari D, Maji B. A Phosphine-Free Manganese Catalyst Enables Stereoselective Synthesis of (1 + n)-Membered Cycloalkanes from Methyl Ketones and 1,n-Diols. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05567] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Akash Jana
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India
| | - Kuhali Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India
| | - Abhishek Kundu
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar 140306, India
| | - Pradip Ramdas Thorve
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar 140306, India
| | - Biplab Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, India
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67
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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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68
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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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69
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Waiba S, Jana SK, Jati A, Jana A, Maji B. Manganese complex-catalysed α-alkylation of ketones with secondary alcohols enables the synthesis of β-branched carbonyl compounds. Chem Commun (Camb) 2020; 56:8376-8379. [DOI: 10.1039/d0cc01460e] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Diverse β-functionalised carbonyl compounds were synthesized via a manganese(i) complex-catalysed α-alkylation of ketones with secondary alcohols.
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Affiliation(s)
- Satyadeep Waiba
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246
- India
| | - Sayan K. Jana
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246
- India
| | - Ayan Jati
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246
- India
| | - Akash Jana
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246
- India
| | - Biplab Maji
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur 741246
- India
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70
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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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71
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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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72
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Goyal V, Gahtori J, Narani A, Gupta P, Bordoloi A, Natte K. Commercial Pd/C-Catalyzed N-Methylation of Nitroarenes and Amines Using Methanol as Both C1 and H2 Source. J Org Chem 2019; 84:15389-15398. [DOI: 10.1021/acs.joc.9b02141] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Vishakha Goyal
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | - Jyoti Gahtori
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | - Anand Narani
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | | | - Ankur Bordoloi
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | - Kishore Natte
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
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73
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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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74
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Latham DE, Polidano K, Williams JMJ, Morrill LC. One-Pot Conversion of Allylic Alcohols to α-Methyl Ketones via Iron-Catalyzed Isomerization-Methylation. Org Lett 2019; 21:7914-7918. [PMID: 31536370 PMCID: PMC7007281 DOI: 10.1021/acs.orglett.9b02900] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Indexed: 11/28/2022]
Abstract
A one-pot iron-catalyzed conversion of allylic alcohols to α-methyl ketones has been developed. This isomerization-methylation strategy utilized a (cyclopentadienone)iron(0) carbonyl complex as precatalyst and methanol as the C1 source. A diverse range of allylic alcohols undergoes isomerization-methylation to form α-methyl ketones in good isolated yields (up to 84% isolated yield).
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Affiliation(s)
- Daniel E. Latham
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff
University, Main Building,
Park Place, Cardiff, CF10 3AT, U.K.
| | - 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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75
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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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76
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Zhu MH, Yu CL, Feng YL, Usman M, Zhong D, Wang X, Nesnas N, Liu WB. Detosylative (Deutero)alkylation of Indoles and Phenols with (Deutero)alkoxides. Org Lett 2019; 21:7073-7077. [PMID: 31441310 DOI: 10.1021/acs.orglett.9b02639] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
An efficient strategy for N/O-(deutero)alkylation of indoles and phenols with alkoxides/alcohols as the alkylation reagents is described. The consecutive detosylation/alkylation transformations feature mild reaction conditions, high ipso-selectivity, and good functional group tolerance (>50 examples). A one-pot selective N-alkylation of unprotected indoles with alcohols and TsCl is also realized. The application of this method is demonstrated by the introduction of isotope-labeled (CD3 and 13CH3) groups using the readily accessible labeled alcohols and the synthesis of pharmaceuticals.
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Affiliation(s)
- Ming-Hui Zhu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Cheng-Long Yu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Ya-Lan Feng
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Muhammad Usman
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Dayou Zhong
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Xin Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Nasri Nesnas
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida 32901, United States
| | - Wen-Bo Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
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77
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Mamidala R, Biswal P, Subramani MS, Samser S, Venkatasubbaiah K. Palladacycle-Phosphine Catalyzed Methylation of Amines and Ketones Using Methanol. J Org Chem 2019; 84:10472-10480. [DOI: 10.1021/acs.joc.9b00983] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Ramesh Mamidala
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar-752050, Odisha, India
| | - Priyabrata Biswal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar-752050, Odisha, India
| | - M. Siva Subramani
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar-752050, Odisha, India
| | - Shaikh Samser
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar-752050, Odisha, India
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar-752050, Odisha, India
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78
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Bettoni L, Seck C, Mbaye MD, Gaillard S, Renaud JL. Iron-Catalyzed Tandem Three-Component Alkylation: Access to α-Methylated Substituted Ketones. Org Lett 2019; 21:3057-3061. [DOI: 10.1021/acs.orglett.9b00630] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Léo Bettoni
- Normandie Université,
LCMT, ENSICAEN, UNICAEN, CNRS, 6 boulevard du Maréchal Juin, Caen 14000, France
| | - Charlotte Seck
- Normandie Université,
LCMT, ENSICAEN, UNICAEN, CNRS, 6 boulevard du Maréchal Juin, Caen 14000, France
- Université Assane Seck de Ziguinchor, Ziguinchor BP 523, Sénégal
| | - Mbaye Diagne Mbaye
- Normandie Université,
LCMT, ENSICAEN, UNICAEN, CNRS, 6 boulevard du Maréchal Juin, Caen 14000, France
- Université Assane Seck de Ziguinchor, Ziguinchor BP 523, Sénégal
| | - Sylvain Gaillard
- Normandie Université,
LCMT, ENSICAEN, UNICAEN, CNRS, 6 boulevard du Maréchal Juin, Caen 14000, France
| | - Jean-Luc Renaud
- Normandie Université,
LCMT, ENSICAEN, UNICAEN, CNRS, 6 boulevard du Maréchal Juin, Caen 14000, France
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79
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Homberg L, Roller A, Hultzsch KC. A Highly Active PN3 Manganese Pincer Complex Performing N-Alkylation of Amines under Mild Conditions. Org Lett 2019; 21:3142-3147. [DOI: 10.1021/acs.orglett.9b00832] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leonard Homberg
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis, Währinger Straße 38, 1090 Vienna, Austria
| | - Alexander Roller
- University of Vienna, Faculty of Chemistry, X-ray Structure Analysis Center, Währinger Straße 42, 1090 Vienna, Austria
| | - Kai C. Hultzsch
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis, Währinger Straße 38, 1090 Vienna, Austria
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80
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Das K, Mondal A, Pal D, Srivastava HK, Srimani D. Phosphine-Free Well-Defined Mn(I) Complex-Catalyzed Synthesis of Amine, Imine, and 2,3-Dihydro-1H-perimidine via Hydrogen Autotransfer or Acceptorless Dehydrogenative Coupling of Amine and Alcohol. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00131] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Kalicharan Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Avijit Mondal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Debjyoti Pal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Hemant Kumar Srivastava
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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81
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Qiu Y, Zhang Y, Jin L, Pan L, Du G, Ye D, Wang D. Immobilization of manganese dioxide nanoparticles on modified poly 2,4-dichlorostyrene microspheres: a highly efficient and recyclable catalyst for borrowing hydrogen reactions. Org Chem Front 2019. [DOI: 10.1039/c9qo00892f] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modified poly 2,4-dichlorostyrene microspheres were designed and synthesized, and were proved to be an effective carrier to synthesize supported manganese dioxide nanoparticles.
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Affiliation(s)
- Ye Qiu
- Chemical Engineering College
- Xinjiang Agricultural University
- Urumqi 830052
- China
- Key Laboratory of Synthetic and Biological Colloids
| | - Yilin Zhang
- C. Eugene Bennett Department of Chemistry
- West Virginia University
- Morgantown
- USA
| | - Lu Jin
- Chemical Engineering College
- Xinjiang Agricultural University
- Urumqi 830052
- China
| | - Le Pan
- Chemical Engineering College
- Xinjiang Agricultural University
- Urumqi 830052
- China
| | - Guangming Du
- Chemical Engineering College
- Xinjiang Agricultural University
- Urumqi 830052
- China
| | - Dongdong Ye
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Dawei Wang
- Chemical Engineering College
- Xinjiang Agricultural University
- Urumqi 830052
- China
- Key Laboratory of Synthetic and Biological Colloids
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82
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Borghs JC, Lebedev Y, Rueping M, El-Sepelgy O. Sustainable Manganese-Catalyzed Solvent-Free Synthesis of Pyrroles from 1,4-Diols and Primary Amines. Org Lett 2018; 21:70-74. [DOI: 10.1021/acs.orglett.8b03506] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jannik C. Borghs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Yury Lebedev
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Osama El-Sepelgy
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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83
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Jang YK, Krückel T, Rueping M, El-Sepelgy O. Sustainable Alkylation of Unactivated Esters and Amides with Alcohols Enabled by Manganese Catalysis. Org Lett 2018; 20:7779-7783. [DOI: 10.1021/acs.orglett.8b03184] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoon Kyung Jang
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Tobias Krückel
- 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
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Osama El-Sepelgy
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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