1
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Lee K, Jing Y, Wang Y, Yan N. A unified view on catalytic conversion of biomass and waste plastics. Nat Rev Chem 2022; 6:635-652. [PMID: 37117711 PMCID: PMC9366821 DOI: 10.1038/s41570-022-00411-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2022] [Indexed: 11/08/2022]
Abstract
Originating from the desire to improve sustainability, producing fuels and chemicals from the conversion of biomass and waste plastic has become an important research topic in the twenty-first century. Although biomass is natural and plastic synthetic, the chemical nature of the two are not as distinct as they first appear. They share substantial structural similarities in terms of their polymeric nature and the types of bonds linking their monomeric units, resulting in close relationships between the two materials and their conversions. Previously, their transformations were mostly studied and reviewed separately in the literature. Here, we summarize the catalytic conversion of biomass and waste plastics, with a focus on bond activation chemistry and catalyst design. By tracking the historical and more recent developments, it becomes clear that biomass and plastic have not only evolved their unique conversion pathways but have also started to cross paths with each other, with each influencing the landscape of the other. As a result, this Review on the catalytic conversion of biomass and waste plastic in a unified angle offers improved insights into existing technologies, and more importantly, may enable new opportunities for future advances.
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Affiliation(s)
- Kyungho Lee
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
| | - Yaxuan Jing
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Yanqin Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China.
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore.
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2
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Zhou W, Neumann P, Al Batal M, Rominger F, Hashmi ASK, Schaub T. Depolymerization of Technical-Grade Polyamide 66 and Polyurethane Materials through Hydrogenation. CHEMSUSCHEM 2021; 14:4176-4180. [PMID: 33174664 DOI: 10.1002/cssc.202002465] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/10/2020] [Indexed: 05/21/2023]
Abstract
Chemical recycling provides a promising solution to utilize plastic waste. Here, a catalytic hydrogenative depolymerization of polyamide 66 (PA 66) and polyurethane (PU) was developed. The system employed Ru pincer complexes at high temperature (200 °C) in THF solution, and even technical-grade polymers could be hydrogenated with satisfactory yields under these conditions. A comparison of the system with some known heterogeneous catalysts as well as catalyst poisoning tests supported the homogeneity of the system. These results demonstrate the potential of chemical recycling to regain building blocks for polymers and will be interesting for the further development of polymer hydrogenation.
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Affiliation(s)
- Wei Zhou
- Catalysis Research Laboratory (CaRLa), University of Heidelberg, Im Neuenheimer Feld 584, 69120, Heidelberg, Germany
| | - Paul Neumann
- BASF SE, Carl-Bosch-Straße 38, 67056, Ludwigshafen, Germany
| | - Mona Al Batal
- BASF SE, Carl-Bosch-Straße 38, 67056, Ludwigshafen, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - A Stephen K Hashmi
- Catalysis Research Laboratory (CaRLa), University of Heidelberg, Im Neuenheimer Feld 584, 69120, Heidelberg, Germany
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Thomas Schaub
- Catalysis Research Laboratory (CaRLa), University of Heidelberg, Im Neuenheimer Feld 584, 69120, Heidelberg, Germany
- BASF SE, Carl-Bosch-Straße 38, 67056, Ludwigshafen, Germany
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3
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Liu X, Werner T. Indirect reduction of CO 2 and recycling of polymers by manganese-catalyzed transfer hydrogenation of amides, carbamates, urea derivatives, and polyurethanes. Chem Sci 2021; 12:10590-10597. [PMID: 34447552 PMCID: PMC8356819 DOI: 10.1039/d1sc02663a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/28/2021] [Indexed: 01/13/2023] Open
Abstract
The reduction of polar bonds, in particular carbonyl groups, is of fundamental importance in organic chemistry and biology. Herein, we report a manganese pincer complex as a versatile catalyst for the transfer hydrogenation of amides, carbamates, urea derivatives, and even polyurethanes leading to the corresponding alcohols, amines, and methanol as products. Since these compound classes can be prepared using CO2 as a C1 building block the reported reaction represents an approach to the indirect reduction of CO2. Notably, these are the first examples on the reduction of carbamates and urea derivatives as well as on the C-N bond cleavage in amides by transfer hydrogenation. The general applicability of this methodology is highlighted by the successful reduction of 12 urea derivatives, 26 carbamates and 11 amides. The corresponding amines, alcohols and methanol were obtained in good to excellent yields up to 97%. Furthermore, polyurethanes were successfully converted which represents a viable strategy towards a circular economy. Based on control experiments and the observed intermediates a feasible mechanism is proposed.
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Affiliation(s)
- Xin Liu
- Leibniz-Institute for Catalysis Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Thomas Werner
- Leibniz-Institute for Catalysis Albert-Einstein-Str. 29a 18059 Rostock Germany
- Department of Chemistry, Paderborn University Warburger Str. 100 33098 Paderborn Germany
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4
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Mishra AA, Bhanage BM. Ru-TsDPEN catalysts and derivatives in asymmetric transfer hydrogenation reactions. Chirality 2021; 33:337-378. [PMID: 34010454 DOI: 10.1002/chir.23317] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 03/28/2021] [Accepted: 04/16/2021] [Indexed: 12/16/2022]
Abstract
This review summarizes current developments, novel synthetic routes for Ruthenium tethered chiral catalyst, and its derivatives along with its application in asymmetric synthesis. The review also covers derivatization in tethering unit, modification in N-monofunctionalized ligand as well as ligation of other ligand with Ru metal in chiral catalyst. Apparently, the effect of a modified tethered catalyst in the enantioselective synthesis of chiral products as well as in synthetic chemistry is also discussed in detail.
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Affiliation(s)
- Ashish A Mishra
- Department of Chemistry, Institute of Chemical Technology, Mumbai, India
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5
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Yao W, Wang J, Zhong A, Li J, Yang J. Combined KOH/BEt 3 Catalyst for Selective Deaminative Hydroboration of Aromatic Carboxamides for Construction of Luminophores. Org Lett 2020; 22:8086-8090. [PMID: 33026813 DOI: 10.1021/acs.orglett.0c03033] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The selective catalytic C-N bond cleavage of amides into value-added amine products is a desirable but challenging transformation. Molecules containing iminodibenzyl motifs are prevalent in pharmaceutical molecules and functional materials. Here we established a combined KOH/BEt3 catalyst for deaminative hydroboration of acyl-iminodibenzyl derivatives, including nonheterocyclic carboxamides, to the corresponding amines. This novel transition-metal-free methodology was also applied to the construction of Clomipramine and luminophores.
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Affiliation(s)
- Wubing Yao
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, P. R. China.,Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Jiali Wang
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, P. R. China.,Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Aiguo Zhong
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, P. R. China
| | - Jinshan Li
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, P. R. China
| | - Jianguo Yang
- School of Pharmaceutical and Materials Engineering, Taizhou University, Jiaojiang 318000, P. R. China.,Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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6
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Homogeneous and heterogeneous catalytic reduction of amides and related compounds using molecular hydrogen. Nat Commun 2020; 11:3893. [PMID: 32753681 PMCID: PMC7403344 DOI: 10.1038/s41467-020-17588-5] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 06/30/2020] [Indexed: 01/17/2023] Open
Abstract
Catalytic hydrogenation of amides is of great interest for chemists working in organic synthesis, as the resulting amines are widely featured in natural products, drugs, agrochemicals, dyes, etc. Compared to traditional reduction of amides using (over)stoichiometric reductants, the direct hydrogenation of amides using molecular hydrogen represents a greener approach. Furthermore, amide hydrogenation is a highly versatile transformation, since not only higher amines (obtained by C–O cleavage), but also lower amines and alcohols, or amino alcohols (obtained by C–N cleavage) can be selectively accessed by fine tuning of reaction conditions. This review describes the most recent advances in the area of amide hydrogenation using H2 exclusively and molecularly defined homogeneous as well as nano-structured heterogeneous catalysts, with a special focus on catalyst development and synthetic applications. Catalytic hydrogenation of amides is a pivotal chemical transformation for both research labs and chemical production in industry. Here, the authors comprehensively review this topic by including state-of-art homogeneous and heterogeneous catalysts that can hydrogenate amides and related compounds.
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7
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Hydrogenation Reactions Catalyzed by PNP-Type Complexes Featuring a HN(CH2CH2PR2)2 Ligand. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Papa V, Cabrero-Antonino JR, Spannenberg A, Junge K, Beller M. Homogeneous cobalt-catalyzed deoxygenative hydrogenation of amides to amines. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01078b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, the first general and efficient homogeneous cobalt-catalyzed deoxygenative hydrogenation of amides to amines is presented.
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Affiliation(s)
- Veronica Papa
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock
- Germany
| | - Jose R. Cabrero-Antonino
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock
- Germany
- Instituto de Tecnología Química
- Universitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC)
| | | | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V
- 18059 Rostock
- Germany
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9
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Gu XS, Yu N, Yang XH, Zhu AT, Xie JH, Zhou QL. Enantioselective Hydrogenation of Racemic α-Arylamino Lactones to Chiral Amino Diols with Site-Specifically Modified Chiral Spiro Iridium Catalysts. Org Lett 2019; 21:4111-4115. [DOI: 10.1021/acs.orglett.9b01290] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xue-Song Gu
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Na Yu
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Hui Yang
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - An-Te Zhu
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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10
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Sorribes I, Lemos SCS, Martín S, Mayoral A, Lima RC, Andrés J. Palladium doping of In2O3 towards a general and selective catalytic hydrogenation of amides to amines and alcohols. Catal Sci Technol 2019. [DOI: 10.1039/c9cy02128k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first general heterogeneous hydrogenation of amides to amines and alcohols is performed under additive-free conditions and without product de-aromatization by applying a Pd-doped In2O3 catalyst.
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Affiliation(s)
- Iván Sorribes
- Departament de Química Física i Analítica
- Universitat Jaume I
- 12071 Castelló
- Spain
| | | | - Santiago Martín
- Departamento de Química Física
- Facultad de Ciencias
- Instituto de Ciencias de Materiales de Aragón (ICMA)
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
| | - Alvaro Mayoral
- Center for High-resolution Electron Microscopy (CħEM)
- School of Physical Science and Technology
- ShanghaiTech University
- Shanghai
- China
| | - Renata C. Lima
- Instituto de Química
- Universidade Federal de Uberlândia
- Uberlândia
- Brazil
| | - Juan Andrés
- Departament de Química Física i Analítica
- Universitat Jaume I
- 12071 Castelló
- Spain
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11
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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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12
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Ruthenium-Pincer-Catalyzed Hydrogenation of Lactams to Amino Alcohols. Chem Asian J 2018; 13:2559-2565. [DOI: 10.1002/asia.201800759] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/06/2018] [Indexed: 01/07/2023]
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13
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Suárez A. Hydrogenation of carbonyl compounds of relevance to hydrogen storage in alcohols. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract
Alcohols are a promising source for the sustainable production of hydrogen that may also serve as rechargeable liquid organic hydrogen carriers (LOHCs). Metal-catalyzed acceptorless dehydrogenation of alcohols produces carbonyl derivatives as H2-depleted by-products, which by means of a hydrogenation reaction can be reconverted to the initial alcohols. Hence, reversible H2-storage systems based on pairs of secondary alcohols/ketones and primary alcohols/carboxylic acid derivatives may be envisaged. In this contribution, the hydrogenation of carbonyl derivatives, including ketones, esters, amides and carboxylic acids, is reviewed from the perspective of the hydrogen storage in alcohols.
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14
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Tamura M, Ishikawa S, Betchaku M, Nakagawa Y, Tomishige K. Selective hydrogenation of amides to alcohols in water solvent over a heterogeneous CeO2-supported Ru catalyst. Chem Commun (Camb) 2018; 54:7503-7506. [DOI: 10.1039/c8cc02697a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CeO2-supported Ru (Ru/CeO2) worked as an effective and reusable heterogeneous catalyst for the selective dissociation of the C–N bond in amides, particularly primary amides, with H2 in water solvent at low reaction temperature of 333 K.
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Affiliation(s)
| | | | - Mii Betchaku
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
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15
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Pierce BM, Simpson BF, Ferguson KH, Whittaker RE. Phosphine-mediated partial reduction of alkynes to form both (E)- and (Z)-alkenes. Org Biomol Chem 2018; 16:6659-6662. [DOI: 10.1039/c8ob01848k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild, tunable method to form both (E)- and (Z)-alkenes from alkynes is reported using PPh3 as a reductant.
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16
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Wang Z, Li Y, Liu QB, Solan GA, Ma Y, Sun WH. Direct Hydrogenation of a Broad Range of Amides under Base-free Conditions using an Efficient and Selective Ruthenium(II) Pincer Catalyst. ChemCatChem 2017. [DOI: 10.1002/cctc.201700952] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zheng Wang
- College of Chemistry and Material Science; Hebei Normal University; Shijiazhuang 050024 P.R. China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
- CAS Research/Education Center for Excellence in Molecular Sciences; University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Yong Li
- College of Chemistry and Material Science; Hebei Normal University; Shijiazhuang 050024 P.R. China
| | - Qing-bin Liu
- College of Chemistry and Material Science; Hebei Normal University; Shijiazhuang 050024 P.R. China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
- Department of Chemistry; University of Leicester; University Road Leicester LE1 7RH UK
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
- CAS Research/Education Center for Excellence in Molecular Sciences; University of Chinese Academy of Sciences; Beijing 100049 P.R. China
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17
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Huq SR, Shi S, Diao R, Szostak M. Mechanistic Study of SmI2/H2O and SmI2/Amine/H2O-Promoted Chemoselective Reduction of Aromatic Amides (Primary, Secondary, Tertiary) to Alcohols via Aminoketyl Radicals. J Org Chem 2017. [DOI: 10.1021/acs.joc.7b00372] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Syed R. Huq
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Shicheng Shi
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Ray Diao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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Miura T, Naruto M, Toda K, Shimomura T, Saito S. Multifaceted catalytic hydrogenation of amides via diverse activation of a sterically confined bipyridine-ruthenium framework. Sci Rep 2017; 7:1586. [PMID: 28512286 PMCID: PMC5434022 DOI: 10.1038/s41598-017-01645-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/03/2017] [Indexed: 11/26/2022] Open
Abstract
Amides are ubiquitous and abundant in nature and our society, but are very stable and reluctant to salt-free, catalytic chemical transformations. Through the activation of a “sterically confined bipyridine–ruthenium (Ru) framework (molecularly well-designed site to confine adsorbed H2 in)” of a precatalyst, catalytic hydrogenation of formamides through polyamide is achieved under a wide range of reaction conditions. Both C=O bond and C–N bond cleavage of a lactam became also possible using a single precatalyst. That is, catalyst diversity is induced by activation and stepwise multiple hydrogenation of a single precatalyst when the conditions are varied. The versatile catalysts have different structures and different resting states for multifaceted amide hydrogenation, but the common structure produced upon reaction with H2, which catalyzes hydrogenation, seems to be “H–Ru–N–H.”
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Affiliation(s)
- Takashi Miura
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Masayuki Naruto
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Katsuaki Toda
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Taiki Shimomura
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Susumu Saito
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan.
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19
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Rasu L, John JM, Stephenson E, Endean R, Kalapugama S, Clément R, Bergens SH. Highly Enantioselective Hydrogenation of Amides via Dynamic Kinetic Resolution Under Low Pressure and Room Temperature. J Am Chem Soc 2017; 139:3065-3071. [DOI: 10.1021/jacs.6b12254] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Loorthuraja Rasu
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Jeremy M. John
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Elanna Stephenson
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Riley Endean
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Suneth Kalapugama
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Roxanne Clément
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Steven H. Bergens
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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20
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Shi L, Tan X, Long J, Xiong X, Yang S, Xue P, Lv H, Zhang X. Direct Catalytic Hydrogenation of Simple Amides: A Highly Efficient Approach from Amides to Amines and Alcohols. Chemistry 2016; 23:546-548. [DOI: 10.1002/chem.201604904] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Liyang Shi
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P. R. China
| | - Xuefeng Tan
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P. R. China
| | - Jiao Long
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P. R. China
| | - Xiong Xiong
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P. R. China
| | - Song Yang
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P. R. China
| | - Peng Xue
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P. R. China
| | - Hui Lv
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P. R. China
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry; Chinese Academy of Sciences; 100190 Beijing P. R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P. R. China
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21
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Yuan ML, Xie JH, Zhou QL. Boron Lewis Acid Promoted Ruthenium-Catalyzed Hydrogenation of Amides: An Efficient Approach to Secondary Amines. ChemCatChem 2016. [DOI: 10.1002/cctc.201600635] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ming-Lei Yuan
- State Key Laboratory and Institute of Elemento-organic Chemistry; Nankai University; 94 Weijin Road Tianjin P.R. China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry; Nankai University; 94 Weijin Road Tianjin P.R. China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry; Nankai University; 94 Weijin Road Tianjin P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Nankai University; 94 Weijin Road Tianjin P.R. China
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22
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Rezayee NM, Samblanet DC, Sanford MS. Iron-Catalyzed Hydrogenation of Amides to Alcohols and Amines. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01454] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Nomaan M. Rezayee
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Danielle C. Samblanet
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Melanie S. Sanford
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
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23
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Schneck F, Assmann M, Balmer M, Harms K, Langer R. Selective Hydrogenation of Amides to Amines and Alcohols Catalyzed by Improved Iron Pincer Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00251] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Felix Schneck
- Department
of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Maik Assmann
- Department
of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Markus Balmer
- Department
of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Klaus Harms
- Department
of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Robert Langer
- Department
of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
- Lehn
Institute of Functional Materials (LIFM), Sun Yat-Sen University (SYSU), Xingang Road West, Guangzhou 510275, PR China
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24
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Yuan ML, Xie JH, Zhu SF, Zhou QL. Deoxygenative Hydrogenation of Amides Catalyzed by a Well-Defined Iridium Pincer Complex. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01019] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ming-Lei Yuan
- State
Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Jian-Hua Xie
- State
Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Shou-Fei Zhu
- State
Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- State
Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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25
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Takada Y, Iida M, Iida K, Miura T, Saito S. Versatile Ruthenium Complex “RuPCY” for Directed Catalytic Hydrogen Management in Organic Synthesis. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.1078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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Sorribes I, Cabrero-Antonino JR, Vicent C, Junge K, Beller M. Catalytic N-Alkylation of Amines Using Carboxylic Acids and Molecular Hydrogen. J Am Chem Soc 2015; 137:13580-7. [PMID: 26484397 DOI: 10.1021/jacs.5b07994] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A convenient, practical and green N-alkylation of amines has been accomplished by applying readily available carboxylic acids in the presence of molecular hydrogen. Applying an in situ formed ruthenium/triphos complex and an organic acid as cocatalyst, a broad range of alkylated secondary and tertiary amines are obtained in good to excellent yields. This novel method is also successfully applied for the synthesis of unsymmetrically substituted N-methyl/alkyl anilines through a direct three-component coupling reaction of the corresponding amines, carboxylic acids, and CO2 as a C1 source.
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Affiliation(s)
- Iván Sorribes
- Leibniz-Institut für Katalyse e.V. Albert Einstein Strasse 29a, 18059 Rostock, Germany
| | | | - Cristian Vicent
- Serveis Centrals d'Instrumentació Científica, Universitat Jaume I , Av. Sos Baynat s/n, 12071 Castelló de la Plana, Spain
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. Albert Einstein Strasse 29a, 18059 Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. Albert Einstein Strasse 29a, 18059 Rostock, Germany
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27
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28
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John JM, Loorthuraja R, Antoniuk E, Bergens SH. Catalytic hydrogenation of functionalized amides under basic and neutral conditions. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01227e] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new, base-free high turnover number (TON) catalyst for hydrogenation of simple and functionalized amides is prepared by reacting [Ru(η3-C3H5)(Ph2P(CH2)2NH2)2]BF4 and BH4− under hydrogen.
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Affiliation(s)
- Jeremy M. John
- Department of Chemistry
- Massachusetts Institute of Technology
- Cambridge
- USA
| | | | - Evan Antoniuk
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
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29
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Smith AM, Whyman R. Review of Methods for the Catalytic Hydrogenation of Carboxamides. Chem Rev 2014; 114:5477-510. [DOI: 10.1021/cr400609m] [Citation(s) in RCA: 212] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Andrew M. Smith
- School of Physical Sciences,
Department of Chemistry, Donnan and Robert Robinson Laboratories, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Robin Whyman
- School of Physical Sciences,
Department of Chemistry, Donnan and Robert Robinson Laboratories, University of Liverpool, Liverpool L69 7ZD, United Kingdom
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30
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Szostak M, Spain M, Eberhart AJ, Procter DJ. Highly chemoselective reduction of amides (primary, secondary, tertiary) to alcohols using SmI2/amine/H2O under mild conditions. J Am Chem Soc 2014; 136:2268-71. [PMID: 24460078 PMCID: PMC3982934 DOI: 10.1021/ja412578t] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Highly chemoselective direct reduction of primary, secondary, and tertiary amides to alcohols using SmI2/amine/H2O is reported. The reaction proceeds with C-N bond cleavage in the carbinolamine intermediate, shows excellent functional group tolerance, and delivers the alcohol products in very high yields. The expected C-O cleavage products are not formed under the reaction conditions. The observed reactivity is opposite to the electrophilicity of polar carbonyl groups resulting from the n(X) → π*(C═O) (X = O, N) conjugation. Mechanistic studies suggest that coordination of Sm to the carbonyl and then to Lewis basic nitrogen in the tetrahedral intermediate facilitate electron transfer and control the selectivity of the C-N/C-O cleavage. Notably, the method provides direct access to acyl-type radicals from unactivated amides under mild electron transfer conditions.
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Affiliation(s)
- Michal Szostak
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
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31
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Hasanayn F, Baroudi A. Direct H/OR and OR/OR′ Metathesis Pathways in Ester Hydrogenation and Transesterification by Milstein’s Catalyst. Organometallics 2013. [DOI: 10.1021/om400122n] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Faraj Hasanayn
- Department of Chemistry, The American University of Beirut, Beirut,
Lebanon
| | - Abdulkader Baroudi
- Department of Chemistry, The American University of Beirut, Beirut,
Lebanon
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32
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Catalytic hydrogenation of unactivated amides enabled by hydrogenation of catalyst precursor. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.047] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Zhao B, Han Z, Ding K. The N-H functional group in organometallic catalysis. Angew Chem Int Ed Engl 2013; 52:4744-88. [PMID: 23471875 DOI: 10.1002/anie.201204921] [Citation(s) in RCA: 296] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Revised: 10/01/2012] [Indexed: 11/09/2022]
Abstract
The organometallic approach is one of the most active topics in catalysis. The application of NH functionality in organometallic catalysis has become an important and attractive concept in catalyst design. NH moieties in the modifiers of organometallic catalysts have been shown to have various beneficial functions in catalysis by molecular recognition through hydrogen bonding to give catalyst-substrate, ligand-ligand, ligand-catalyst, and catalyst-catalyst interactions. This Review summarizes recent progress in the development of the organometallic catalysts based on the concept of cooperative catalysis by focusing on the NH moiety.
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Affiliation(s)
- Baoguo Zhao
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, P.R. China
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34
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35
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Dub PA, Ikariya T. Catalytic Reductive Transformations of Carboxylic and Carbonic Acid Derivatives Using Molecular Hydrogen. ACS Catal 2012. [DOI: 10.1021/cs300341g] [Citation(s) in RCA: 288] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Pavel A. Dub
- Department of Applied Chemistry,
Graduate School of
Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Takao Ikariya
- Department of Applied Chemistry,
Graduate School of
Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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36
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Prasad G, Amoroso JW, Borketey LS, Schnarr NA. N-activated β-lactams as versatile reagents for acyl carrier protein labeling. Org Biomol Chem 2012; 10:1992-2002. [PMID: 22293823 DOI: 10.1039/c2ob06846j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acyl carrier proteins are critical components of fatty acid and polyketide biosynthesis. Their primary function is to shuttle intermediates between active sites via a covalently bound phosphopantetheine arm. Small molecules capable of acylating this prosthetic group will provide a simple and reversible means of introducing novel functionality onto carrier protein domains. A series of N-activated β-lactams are prepared to examine site-specific acylation of the phosphopantetheine-thiol. In general, β-lactams are found to be significantly more reactive than our previously studied β-lactones. Selectivity for the holo over apo-form of acyl carrier proteins is demonstrated indicating that only the phosphopantetheine-thiol is modified. Incorporation of an N-propargyloxycarbonyl group provides an alkyne handle for conjugation to fluorophores and affinity labels. The utility of these groups for mechanistic interrogation of a critical step in polyketide biosynthesis is examined through comparison to traditional probes. In all, we expect the probes described in this study to serve as valuable and versatile tools for mechanistic interrogation.
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Affiliation(s)
- Gitanjeli Prasad
- Department of Chemistry, University of Massachusetts, 710 N. Pleasant Street, Amherst, Massachusetts 01003, USA
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37
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Shen R, Chen T, Zhao Y, Qiu R, Zhou Y, Yin S, Wang X, Goto M, Han LB. Facile Regio- and Stereoselective Hydrometalation of Alkynes with a Combination of Carboxylic Acids and Group 10 Transition Metal Complexes: Selective Hydrogenation of Alkynes with Formic Acid. J Am Chem Soc 2011; 133:17037-44. [DOI: 10.1021/ja2069246] [Citation(s) in RCA: 189] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruwei Shen
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Tieqiao Chen
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Yalei Zhao
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Renhua Qiu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yongbo Zhou
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuangfeng Yin
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xiangbo Wang
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Midori Goto
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Li-Biao Han
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
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38
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39
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Touge T, Hakamata T, Nara H, Kobayashi T, Sayo N, Saito T, Kayaki Y, Ikariya T. Oxo-Tethered Ruthenium(II) Complex as a Bifunctional Catalyst for Asymmetric Transfer Hydrogenation and H2 Hydrogenation. J Am Chem Soc 2011; 133:14960-3. [DOI: 10.1021/ja207283t] [Citation(s) in RCA: 260] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Taichiro Touge
- Corporate Research & Development Division, Takasago International Corporation, 4-11, Nishiyawata 1-chome, Hiratsuka City, Kanagawa 254-0073, Japan
| | - Tomohiko Hakamata
- Corporate Research & Development Division, Takasago International Corporation, 4-11, Nishiyawata 1-chome, Hiratsuka City, Kanagawa 254-0073, Japan
| | - Hideki Nara
- Corporate Research & Development Division, Takasago International Corporation, 4-11, Nishiyawata 1-chome, Hiratsuka City, Kanagawa 254-0073, Japan
| | - Tohru Kobayashi
- Corporate Research & Development Division, Takasago International Corporation, 4-11, Nishiyawata 1-chome, Hiratsuka City, Kanagawa 254-0073, Japan
| | - Noboru Sayo
- Corporate Research & Development Division, Takasago International Corporation, 4-11, Nishiyawata 1-chome, Hiratsuka City, Kanagawa 254-0073, Japan
| | - Takao Saito
- Corporate Research & Development Division, Takasago International Corporation, 4-11, Nishiyawata 1-chome, Hiratsuka City, Kanagawa 254-0073, Japan
| | - Yoshihito Kayaki
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-E4-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Takao Ikariya
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-E4-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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40
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John JM, Bergens SH. A Highly Active Catalyst for the Hydrogenation of Amides to Alcohols and Amines. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103137] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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John JM, Bergens SH. A Highly Active Catalyst for the Hydrogenation of Amides to Alcohols and Amines. Angew Chem Int Ed Engl 2011; 50:10377-80. [DOI: 10.1002/anie.201103137] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 06/23/2011] [Indexed: 11/10/2022]
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42
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Efficient hydrogenation of organic carbonates, carbamates and formates indicates alternative routes to methanol based on CO2 and CO. Nat Chem 2011; 3:609-14. [PMID: 21778980 DOI: 10.1038/nchem.1089] [Citation(s) in RCA: 527] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Accepted: 06/10/2011] [Indexed: 12/24/2022]
Abstract
Catalytic hydrogenation of organic carbonates, carbamates and formates is of significant interest both conceptually and practically, because these compounds can be produced from CO2 and CO, and their mild hydrogenation can provide alternative, mild approaches to the indirect hydrogenation of CO2 and CO to methanol, an important fuel and synthetic building block. Here, we report for the first time catalytic hydrogenation of organic carbonates to alcohols, and carbamates to alcohols and amines. Unprecedented homogeneously catalysed hydrogenation of organic formates to methanol has also been accomplished. The reactions are efficiently catalysed by dearomatized PNN Ru(II) pincer complexes derived from pyridine- and bipyridine-based tridentate ligands. These atom-economical reactions proceed under neutral, homogeneous conditions, at mild temperatures and under mild hydrogen pressures, and can operate in the absence of solvent with no generation of waste, representing the ultimate 'green' reactions. A possible mechanism involves metal-ligand cooperation by aromatization-dearomatization of the heteroaromatic pincer core.
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43
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Takebayashi S, Dabral N, Miskolzie M, Bergens SH. Experimental Investigations of a Partial Ru–O Bond during the Metal–Ligand Bifunctional Addition in Noyori-Type Enantioselective Ketone Hydrogenation. J Am Chem Soc 2011; 133:9666-9. [DOI: 10.1021/ja202732q] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Satoshi Takebayashi
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Nupur Dabral
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Mark Miskolzie
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Steven H. Bergens
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
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44
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Ito M, Ootsuka T, Watari R, Shiibashi A, Himizu A, Ikariya T. Catalytic Hydrogenation of Carboxamides and Esters by Well-Defined Cp*Ru Complexes Bearing a Protic Amine Ligand. J Am Chem Soc 2011; 133:4240-2. [DOI: 10.1021/ja1117254] [Citation(s) in RCA: 178] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masato Ito
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Takashi Ootsuka
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Ryo Watari
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Akira Shiibashi
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Akio Himizu
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Takao Ikariya
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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45
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O WWN, Lough AJ, Morris RH. Mechanistic Investigation of the Hydrogenation of Ketones Catalyzed by a Ruthenium(II) Complex Featuring an N-Heterocyclic Carbene with a Tethered Primary Amine Donor: Evidence for an Inner Sphere Mechanism. Organometallics 2011. [DOI: 10.1021/om101152m] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wylie W. N. O
- Davenport Laboratory, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Alan J. Lough
- Davenport Laboratory, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Robert H. Morris
- Davenport Laboratory, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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46
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Ikariya T. Chemistry ofConcertoMolecular Catalysis Based on the Metal/NH Bifunctionality. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20100249] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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47
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Bifunctional Transition Metal-Based Molecular Catalysts for Asymmetric Syntheses. TOP ORGANOMETAL CHEM 2011. [DOI: 10.1007/3418_2011_2] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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48
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Ito M, Shiibashi A, Ikariya T. Regioselective lactonization of unsymmetrical 1,4-diols: an efficient access to lactone lignans. Chem Commun (Camb) 2011; 47:2134-6. [DOI: 10.1039/c0cc04926c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Balaraman E, Gnanaprakasam B, Shimon LJW, Milstein D. Direct hydrogenation of amides to alcohols and amines under mild conditions. J Am Chem Soc 2010; 132:16756-8. [PMID: 21049928 DOI: 10.1021/ja1080019] [Citation(s) in RCA: 337] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The selective, direct hydrogenation of amides to the corresponding alcohols and amines with cleavage of the C-N bond was discovered. The expected products of C-O cleavage are not formed (except as traces in the case of anilides). The reaction proceeds under mild pressure and neutral, homogeneous conditions using a dearomatized, bipyridyl-based PNN Ru(II) pincer complex as a catalyst. The postulated mechanism involves metal-ligand cooperation by aromatization-dearomatization of the heteroaromatic pincer core and does not involve hydrolytic cleavage of the amide. The simplicity, generality, and efficiency of this environmentally benign process make it attractive for the direct transformations of amides to alcohols and amines in good to excellent yields.
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Affiliation(s)
- Ekambaram Balaraman
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, 76100, Israel
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50
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Ito M, Watanabe A, Shibata Y, Ikariya T. Synthesis and Reactivity of 2-Aminoethanethiolato-Bridged Dinuclear Ru(hmb) Complexes (hmb = η6-hexamethylbenzene): Mechanistic Consideration on Transfer Hydrogenation with Bifunctional [RuCl2(hmb)]2/2-Aminoethanethiol Catalyst System. Organometallics 2010. [DOI: 10.1021/om100773a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masato Ito
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-E4-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Akira Watanabe
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-E4-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yuji Shibata
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-E4-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Takao Ikariya
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-E4-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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