1
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He Y, Shi L, Dong B, Zhao G, Li F. β-Methylation of Primary Alcohols with Methanol Catalyzed by a Metal-Ligand Bifunctional Iridium Catalyst. J Org Chem 2024. [PMID: 39087433 DOI: 10.1021/acs.joc.4c01323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
The development of efficient methods for the direct introduction of a methyl group into molecules is becoming increasingly important. Herein, the β-methylation of primary alcohols with methanol has been accomplished under environmentally benign conditions using [Cp*Ir(2,2'-bpyO)(H2O)] as a catalyst. It was found that functional groups in the ligand are crucially important for the activity of the iridium complex. Furthermore, the mechanistic research and application potential of our catalytic system are also presented.
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Affiliation(s)
- Yiqian He
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Lili Shi
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Beixuan Dong
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Guoqiang Zhao
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Feng Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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2
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Xu X, You H, Dong B, He Y, Li F. Selective Conversion of Glycerol to Lactic Acid in Water via Acceptorless Dehydrogenation Catalyzed by a Water-Soluble Metal-Ligand Bifunctional Iridium Catalyst. Inorg Chem 2024; 63:12929-12934. [PMID: 38954498 DOI: 10.1021/acs.inorgchem.4c01617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
An efficient method for the selective conversion of glycerol, the major byproduct of the biodiesel manufacturing process, to lactic acid in water via acceptorless dehydrogenation has been developed. In the presence of a water-soluble [Cp*Ir(6,6'-(OH)2-2,2'-bpy)(H2O)][OTf]2 (0.1 mol %) and KOH (1.1 equiv), the reaction proceeded at 120 °C for 24 h to afford the desired product in >99% yield with >99% selectivity. It was confirmed that OH functional groups in the ligand were crucial for the activity of the iridium complex. Furthermore, density functional theory calculations and mechanistic experiments were also undertaken.
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Affiliation(s)
- Xiangchao Xu
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Heng You
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Beixuan Dong
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Yiqian He
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Feng Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
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3
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Zhang J, Xu X, Zhao G, You H, Wang R, Li F. Hydrogenation of Quinones to Hydroquinones under Atmospheric Pressure Catalyzed by a Metal-Ligand Bifunctional Iridium Catalyst. Org Lett 2024; 26:1857-1862. [PMID: 38407095 DOI: 10.1021/acs.orglett.4c00064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
A general method for the hydrogenation of quinones to hydroquinones under atmospheric pressure has been developed. In the presence of [Cp*Ir(2,2'-bpyO)(H2O)] (0.5-1 mol %), a range of products were obtained in high yields. Furthemore, the expansion of this catalytic system to the hydrogenation of 1,4-benzoquinone diimines was also presented. Functional groups in the bpy ligand were found to be crucial for the catalytic activity of iridium complexes.
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Affiliation(s)
- Jin Zhang
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Xiangchao Xu
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Guoqiang Zhao
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Heng You
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Rongzhou Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
| | - Feng Li
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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4
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Xu X, Zhang J, Dong B, Li F. Upgrading Ethanol to n-Butanol in the Presence of Carbonate Catalyzed by a Cp*Ir Complex Bearing a Functional 2,2'-Carbonylbibenzimidazole Ligand. Inorg Chem 2024; 63:3843-3849. [PMID: 38355102 DOI: 10.1021/acs.inorgchem.3c04142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Upgrading ethanol to n-butanol as biofuels is an important topic for sustainable chemistry. Herein, a Cp*Ir complex bearing a functional 2,2'-carbonylbibenzimidazole ligand [Cp*Ir(2,2'-COBiBzImH2)Cl][Cl] was designed and synthesized. In the presence of a catalyst (0.1 mol %) and Cs2CO3 (6 mol %), the highest yield of updated n-butanol is up to 37% with 80% selectivity. NH units in the ligand are crucially important for the catalytic activity of the iridium complex.
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Affiliation(s)
- Xiangchao Xu
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Jin Zhang
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Beixuan Dong
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Feng Li
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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5
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Fukumoto K, Yazaki M, Arisawa M. Synthesis of Unprotected Cyclic Peptide Methylene Dithioacetals by Rhodium-Catalyzed Oxidation of Methanol to Formaldehyde. Org Lett 2024; 26:221-224. [PMID: 38134135 DOI: 10.1021/acs.orglett.3c03872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
In the presence of a rhodium catalyst, unprotected peptide dithiols possessing two cysteine residues are efficiently converted to their corresponding cyclic methylene dithioacetals in a mixed solvent of methanol and water (4:1) under an oxygen atmosphere (1 atm). The slow formation of formaldehyde inhibits side reactions by maintaining its concentration at a low level, which is a key feature of this reaction. This method can be applied to peptide dithiols containing amino acids such as Gly, Ala, Ser, Lys, Met, Phe, Tyr, and His and provides cyclic methylene dithioacetals without being affected by other functional groups. Primary alcohols, such as ethanol and isopropanol, can also be employed. Oxytocin can be cyclized to provide a cyclic methylene dithioacetal.
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Affiliation(s)
- Kohei Fukumoto
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan
| | - Masana Yazaki
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Mieko Arisawa
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan
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6
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Zhang T, Zhang J, Mori A, Morii T, Kuramochi K, Maekawa H. Regioselective Coupling of Different Conjugate Esters by Magnesium Metal Reduction: A Route to Unsymmetrical Adipic Acid Esters. J Org Chem 2023; 88:15894-15901. [PMID: 37933141 DOI: 10.1021/acs.joc.3c01982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
A novel tactic to synthesize unsymmetrical 3-aryladipic acid esters has been developed via magnesium-promoted reductive coupling of ethyl cinnamates with methyl acrylate. In the present methodology, 3-aryladipic acid derivatives were prepared with good functional group tolerance and a wide substrate scope under very mild reaction conditions in good yields. The application of this reaction to dienic acid esters led to the successful control of the reaction to give 5-aryl-oct-3-enedioic acid esters with high regioselectivity.
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Affiliation(s)
- Tianyuan Zhang
- Department of Materials Science and Bioengineering, Nagaoka University of Technology 1603-1, Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jiawu Zhang
- Department of Materials Science and Bioengineering, Nagaoka University of Technology 1603-1, Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Akihiro Mori
- Department of Materials Science and Bioengineering, Nagaoka University of Technology 1603-1, Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Taku Morii
- Department of Materials Science and Bioengineering, Nagaoka University of Technology 1603-1, Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Keisuke Kuramochi
- Department of Materials Science and Bioengineering, Nagaoka University of Technology 1603-1, Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
| | - Hirofumi Maekawa
- Department of Materials Science and Bioengineering, Nagaoka University of Technology 1603-1, Kamitomioka-cho, Nagaoka, Niigata 940-2188, Japan
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7
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Paul T, Saikia PP, Borah D, Mahanta N, Baruah A, Borah JM, Saikia BJ, Raidongia K, Gogoi RK, Gogoi R. Ni(OH)
2
nanoparticles as a recyclable catalyst in acceptorless dehydrogenation of alcohols to acids/acid salts under aerobic conditions. ChemistrySelect 2023. [DOI: 10.1002/slct.202204713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Tumpa Paul
- Department of Chemistry Darrang College 784001 Tezpur India
| | | | | | | | - Arabinda Baruah
- Department of Chemistry Gauhati University 781014 Guwahati India
| | | | | | | | | | - Raktim Gogoi
- Department of Chemistry IIT Guwahati 781039 Guwahati India
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8
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Rational design of cobalt catalysts embedded in N-Doped carbon for the alcohol dehydrogenation to carboxylic acids. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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9
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Luo S, Xu X, Zhang P, Shi Q, Yang X, Li F. Autotandem Catalyst: From Acylhydrazones to N′, N′-Methylaliphatic Acylhydrazides via Transfer Hydrogenation/ N-Methylation with Methanol Catalyzed by a Cp* Iridium Complex Bearing a Functional Ligand. Org Lett 2022; 24:9081-9085. [DOI: 10.1021/acs.orglett.2c03719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Shiyuan Luo
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Xiangchao Xu
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Peng Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Qixun Shi
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xiaoguang Yang
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
| | - Feng Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, P. R. China
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10
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Zeolitic Imidazolate Framework-8 as an Efficient and Facile Heterogeneous Catalyst for the Acceptorless Alcohol Dehydrogenation to Carboxylates. J Catal 2022. [DOI: 10.1016/j.jcat.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Itoga M, Yamanishi M, Udagawa T, Kobayashi A, Maekawa K, Takemoto Y, Naka H. Iridium-catalyzed α-selective deuteration of alcohols. Chem Sci 2022; 13:8744-8751. [PMID: 35975159 PMCID: PMC9350590 DOI: 10.1039/d2sc01805e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/29/2022] [Indexed: 11/23/2022] Open
Abstract
The development of chemoselective C(sp3)-H deuteration is of particular interest in synthetic chemistry. We herein report the α-selective, iridium(iii)-bipyridonate-catalyzed hydrogen(H)/deuterium(D) isotope exchange of alcohols using deuterium oxide (D2O) as the primary deuterium source. This method enables the direct, chemoselective deuteration of primary and secondary alcohols under basic or neutral conditions without being affected by coordinative functional groups such as imidazole and tetrazole. Successful substrates for deuterium labelling include the pharmaceuticals losartan potassium, rapidosept, guaifenesin, and diprophylline. The deuterated losartan potassium shows higher stability towards the metabolism by CYP2C9 than the protiated analogue. Kinetic and DFT studies indicate that the direct deuteration proceeds through dehydrogenation of alcohol to the carbonyl intermediate, conversion of [IrIII-H] to [IrIII-D] with D2O, and deuteration of the carbonyl intermediate to give the α-deuterated product.
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Affiliation(s)
- Moeko Itoga
- Graduate School of Pharmaceutical Sciences, Kyoto University Kyoto 606-8501 Japan
| | - Masako Yamanishi
- Graduate School of Pharmaceutical Sciences, Kyoto University Kyoto 606-8501 Japan
| | - Taro Udagawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University Yanagido 1-1 Gifu 501-1193 Japan
| | - Ayane Kobayashi
- Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts Kodo, Kyotanabe Kyoto 610-0395 Japan
| | - Keiko Maekawa
- Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts Kodo, Kyotanabe Kyoto 610-0395 Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University Kyoto 606-8501 Japan
| | - Hiroshi Naka
- Graduate School of Pharmaceutical Sciences, Kyoto University Kyoto 606-8501 Japan
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12
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Song A, Liu Y, Jin X, Su D, Li Z, Yu S, Xing L, Xu X, Wang R, Li F. Metal-ligand cooperative iridium complex catalyzed C-alkylation of oxindole and 1,3-dimethylbarbituric acid using alcohols. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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13
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Shimbayashi T, Ito H, Shimizu M, Sano H, Sakaki S, Fujita KI. Effect of Substituents in Functional Bipyridonate Ligands on Ruthenium‐Catalyzed Dehydrogenative Oxidation of Alcohols: An Experimental and Computational Study. ChemCatChem 2022. [DOI: 10.1002/cctc.202200280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takuya Shimbayashi
- Kyoto University Graduate School of Human and Environmental Studies Yoshidanihonmatsu-cho, Sakyo-ku 606-8501 Kyoto JAPAN
| | - Hajime Ito
- Kyoto University - Yoshida Campus: Kyoto Daigaku Graduate School of Human and Environmental Studies JAPAN
| | - Mineyuki Shimizu
- Kyoto University - Yoshida Campus: Kyoto Daigaku Graduate School of Human and Environmental Studies JAPAN
| | - Hayato Sano
- Kyoto University - Yoshida Campus: Kyoto Daigaku Graduate School of Human and Environmental Studies JAPAN
| | - Shigeyoshi Sakaki
- Kyoto University: Kyoto Daigaku Element Strategy Initiative for Catalysts and Batteries Goryo-Ohara, Nishikyo-ku 615-8245 Kyoto JAPAN
| | - Ken-ichi Fujita
- Kyoto University - Yoshida Campus: Kyoto Daigaku Graduate School of Human and Environmental Studies Yoshidanihonmatsucho, Sakyo-ku 606-8501 Kyoto JAPAN
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14
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Direct couplings of secondary alcohols with primary alkenyl alcohols to α-alkylated ketones via a tandem transfer hydrogenation/hydrogen autotransfer process catalyzed by a metal-ligand bifunctional iridium catalyst. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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Liu P, Chen X, Xu X, Yang L, Zeng G, Ye C, Shi Q, Yang J, Li F. From hydrogen autotransfer process to deuterium autotransfer process: The N-trideuteromethylation of amines with deuterated methanol to trideuteromethylated amines catalyzed by a Cp*Ir complex bearing a flexible bridging and functional ligand. J Catal 2022. [DOI: 10.1016/j.jcat.2022.04.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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16
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Song A, Liu S, Wang M, Lu Y, Wang R, Xing LB. Iridium-catalyzed synthesis of β-methylated secondary alcohols using methanol. J Catal 2022. [DOI: 10.1016/j.jcat.2022.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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17
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Shen L, Chen ZN, Zheng Q, Wu J, Xu X, Tu T. Selective Transformation of Vicinal Glycols to α-Hydroxy Acetates in Water via a Dehydrogenation and Oxidization Relay Process by a Self-Supported Single-Site Iridium Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Lingyun Shen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Zhe-Ning Chen
- Collaborative Innovation Center of Chemistry for Energy Materials, MOE Laboratory for Computational Physical Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Qingshu Zheng
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Jiajie Wu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Xin Xu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
- Collaborative Innovation Center of Chemistry for Energy Materials, MOE Laboratory for Computational Physical Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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18
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Cp*Ir complex bearing a flexible bridging and functional 2,2′-methylenebibenzimidazole ligand as an auto-tandem catalyst for the synthesis of N-methyl tertiary amines from imines via transfer hydrogenation/N-methylation with methanol. J Catal 2021. [DOI: 10.1016/j.jcat.2021.08.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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19
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Aricò F. Synthetic approaches to 2,5-bis(hydroxymethyl)furan (BHMF): a stable bio-based diol. PURE APPL CHEM 2021. [DOI: 10.1515/pac-2021-0117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
Biorefinery is defined as a sustainable process where biomass is converted in a spectrum of marketable products and fuels. In this view, C6 furan-based compounds, usually referred as furanics, have been extensively investigated as aromatic promising building blocks from renewables. 5-Hydroxymethylfurfural (HMF) and 2,5-furan dicarboxylic acid (FDCA) are well known examples of furanics whose syntheses and applications have been extensively reviewed in the literature. Herein for the first time it is reported a comprehensive overview on the synthetic procedures to another bio-derived furan compounds, i.e. 2,5-bis(hydroxymethyl)furan (BHMF), a stable bio-based diol with numerous applications as monomer for bio-materials and fuels. Advantages and limitations of the different synthetic approaches are addressed, as well as possible future developments to render this compound part of the biorefinery market.
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Affiliation(s)
- Fabio Aricò
- Department of Environmental Science, Informatics and Statistics , Ca’ Foscari University of Venice , Venice , Veneto , Italy
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20
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Xu X, Ai Y, Wang R, Liu L, Yang J, Li F. Ruthenium-catalyzed acceptorless dehydrogenative coupling of o-aminobenzyl alcohols with ketones to quinolines in the presence of carbonate salt. J Catal 2021. [DOI: 10.1016/j.jcat.2020.12.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Liu P, Tung NT, Xu X, Yang J, Li F. N-Methylation of Amines with Methanol in the Presence of Carbonate Salt Catalyzed by a Metal-Ligand Bifunctional Ruthenium Catalyst [( p-cymene)Ru(2,2'-bpyO)(H 2O)]. J Org Chem 2021; 86:2621-2631. [PMID: 33502847 DOI: 10.1021/acs.joc.0c02685] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A ruthenium complex [(p-cymene)Ru(2,2'-bpyO)(H2O)] was found to be a general and efficient catalyst for the N-methylation of amines with methanol in the presence of carbonate salt. Moreover, a series of sensitive substituents, such as nitro, ester, cyano, and vinyl groups, were tolerated under present conditions. It was confirmed that OH units in the ligand are crucial for the catalytic activity. Notably, this research exhibited the potential of metal-ligand bifunctional ruthenium catalysts for the hydrogen autotransfer process.
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Affiliation(s)
- Peng Liu
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, People's Republic of China
| | - Nguyen Thanh Tung
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, People's Republic of China
| | - Xiangchao Xu
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, People's Republic of China
| | - Jiazhi Yang
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, People's Republic of China
| | - Feng Li
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, People's Republic of China
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22
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Toyooka G, Tanaka T, Kitayama K, Kobayashi N, Watanabe T, Fujita KI. Hydrogen production from cellulose catalyzed by an iridium complex in ionic liquid under mild conditions. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02419h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new and simple method for hydrogen production from cellulose using an iridium catalyst and an ionic liquid under mild conditions was developed.
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Affiliation(s)
- Genki Toyooka
- Graduate School of Human and Environmental Studies
- Kyoto University
- Kyoto
- Japan
| | - Toshiki Tanaka
- Graduate School of Human and Environmental Studies
- Kyoto University
- Kyoto
- Japan
| | | | - Naoko Kobayashi
- Research Institute for Sustainable Humanosphere
- Kyoto University
- Kyoto
- Japan
| | - Takashi Watanabe
- Research Institute for Sustainable Humanosphere
- Kyoto University
- Kyoto
- Japan
| | - Ken-ichi Fujita
- Graduate School of Human and Environmental Studies
- Kyoto University
- Kyoto
- Japan
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