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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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Li YN, Liu XF, He LN. An alternative route of CO2 conversion: Pd/C-catalyzed oxazolidinone hydrogenation to HCOOH and secondary alkyl-(2-arylethyl)amines with one stone two bird strategy. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2018.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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3
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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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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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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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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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Werkmeister S, Junge K, Beller M. Catalytic Hydrogenation of Carboxylic Acid Esters, Amides, and Nitriles with Homogeneous Catalysts. Org Process Res Dev 2014. [DOI: 10.1021/op4003278] [Citation(s) in RCA: 295] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Svenja Werkmeister
- Leibniz-Institute for Catalysis, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Kathrin Junge
- Leibniz-Institute for Catalysis, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Matthias Beller
- Leibniz-Institute for Catalysis, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
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Li YN, Ma R, He LN, Diao ZF. Homogeneous hydrogenation of carbon dioxide to methanol. Catal Sci Technol 2014. [DOI: 10.1039/c3cy00564j] [Citation(s) in RCA: 204] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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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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11
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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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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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13
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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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Sandoval C, Bie F, Matsuoka A, Yamaguchi Y, Naka H, Li Y, Kato K, Utsumi N, Tsutsumi K, Ohkuma T, Murata K, Noyori R. Chiral η6-Arene/N-Tosylethylenediamine-Ruthenium(II) Complexes: Solution Behavior and Catalytic Activity for Asymmetric Hydrogenation. Chem Asian J 2010; 5:806-16. [DOI: 10.1002/asia.200900461] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kashiwame Y, Kuwata S, Ikariya T. Metal-Pyrazole Bifunction in Half-Sandwich CN Chelate Iridium Complexes: Pyrazole-Pyrazolato Interconversion and Application to Catalytic Intramolecular Hydroamination of Aminoalkene. Chemistry 2009; 16:766-70. [DOI: 10.1002/chem.200902827] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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