1
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Wang W, Wang Y, Yang Y, Xie S, Wang Q, Chen W, Wang S, Zhang F, Shao Y. Cobalt-Catalyzed Borylative Reduction of Azobenzenes to Hydrazobenzenes via a Diborylated-Hydrazine Intermediate. J Org Chem 2024; 89:9265-9274. [PMID: 38901844 DOI: 10.1021/acs.joc.4c00203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Cobalt-catalyzed borylative reduction of azobenzenes using pinacolborane is developed. The simple cobalt chloride catalyst and reaction conditions make this protocol attractive for hydrazobenzene synthesis. This borylative reduction shows good functional group compatibility and can be readily scaled up to the gram scale. Preliminary mechanistic studies clarified the proton source of the hydrazine products. This cobalt-catalyzed azobenzene borylative reaction provides a practical protocol to prepare synthetically useful diborylated hydrazines.
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Affiliation(s)
- Wenli Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuli Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yiying Yang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Shanshan Xie
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Qi Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Wenwen Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Shuo Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Fangjun Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yinlin Shao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou 325035, China
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2
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Zang Y, Ma Y, Xu Q, Li G, Chen N, Li X, Zhu F. TiCl 4-mediated deoxygenative reduction of aromatic ketones to alkylarenes with ammonia borane. Org Biomol Chem 2024; 22:932-939. [PMID: 38180250 DOI: 10.1039/d3ob01977b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
A rapid and mild protocol for the exhaustive deoxygenation of various aromatic ketones to corresponding alkanes was described, which was mediated by TiCl4 and used ammonia borane (AB) as the reductant. This reduction protocol applies to a wide range of substrates in moderate to excellent yields at room temperature. The gram-scale reaction and syntheses of some key building blocks for SGLT2 inhibitors demonstrated the practicability of this methodology. Preliminary mechanistic studies revealed that the ketone is first converted into an alcohol, which then undergoes a carbocation to give the alkane via hydrogenolysis.
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Affiliation(s)
- Yongjun Zang
- Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, Department of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, Anhui, P.R. China.
| | - Yunfeng Ma
- Anhui Anlito Biological Technology Co., Ltd, Anhui Huoshan Economic and Technological Development Zone, 237200, Anhui, P.R. China
| | - Qilin Xu
- Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, Department of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, Anhui, P.R. China.
| | - Guosi Li
- Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, Department of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, Anhui, P.R. China.
| | - Naidong Chen
- Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, Department of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, Anhui, P.R. China.
| | - Xing Li
- College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou, 225300, Jiangsu, P.R. China.
| | - Fucheng Zhu
- Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, Department of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, Anhui, P.R. China.
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3
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Hipólito J, Martins AM, Alves LG. Synthesis and Application of New Salan Titanium Complexes in the Catalytic Reduction of Aldehydes. Molecules 2022; 27:molecules27206821. [PMID: 36296413 PMCID: PMC9610537 DOI: 10.3390/molecules27206821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/04/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
Complexes of formula [(H2N2O2)TiCl2] and [(H2N2O2)Ti(OiPr)2] (H2N2O2H2 = HOPh’CH2NH(CH2)2NHCH2Ph’OH, where Ph’ = 2,4-(CMe2Ph)C6H2) were synthesized by the reaction of the salan ligand precursor H2N2O2H2 with TiCl4 and Ti(OiPr)4, respectively, in high yields. The dichlorido complex [(H2N2O2)TiCl2] revealed to be an efficient catalyst for the reduction of benzaldehyde in toluene. Full conversion was observed after 24 h at 55 °C in THF. The same catalyst also converted phenylacetaldehyde and hydrocinnamaldehyde into the corresponding alkanes quantitatively.
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Affiliation(s)
- Joana Hipólito
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Ana M. Martins
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
- Correspondence: (A.M.M.); (L.G.A.)
| | - Luis G. Alves
- Centro de Química Estrutural, Associação do Instituto Superior Técnico para a Investigação e Desenvolvimento, Av. Rovisco Pais 1, 1049-003 Lisboa, Portugal
- Correspondence: (A.M.M.); (L.G.A.)
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4
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Puig E, Verron R, Kechaou-Perrot M, Vendier L, Gornitzka H, Miqueu K, Sotiropoulos JM, Fischmeister C, Sutra P, Igau A. Shvo-Type Metal–Ligand Cooperative Catalysts: Tethered η 5-Oxocyclohexadienyl Ruthenium Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emmanuel Puig
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Raphaël Verron
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)─UMR 6226, Rennes F-35042, France
| | - Manel Kechaou-Perrot
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Laure Vendier
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Heinz Gornitzka
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Karinne Miqueu
- CNRS/Université de Pau & des Pays de l’Adour, E2S-UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux (IPREM), UMR CNRS 5254, 2 Avenue du Président P. Angot, Pau 64053, Cedex 09, France
| | - Jean-Marc Sotiropoulos
- CNRS/Université de Pau & des Pays de l’Adour, E2S-UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux (IPREM), UMR CNRS 5254, 2 Avenue du Président P. Angot, Pau 64053, Cedex 09, France
| | - Cédric Fischmeister
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)─UMR 6226, Rennes F-35042, France
| | - Pierre Sutra
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
| | - Alain Igau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de Narbonne, BP 44099, Toulouse Cedex 4 F-31077, France
- Université de Toulouse, UPS, INPT, Toulouse Cedex 4 F-31077, France
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5
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Zhang B, Guo X, Tao L, Li R, Lin Z, Zhao W. Rhodium-Catalyzed Regioselective and Chemoselective Deoxygenative Reduction of 1,3-Diketones. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00520] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P.R. China
| | - Xueying Guo
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Lei Tao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P.R. China
| | - Ruolin Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P.R. China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P.R. China
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6
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Xu C, Wu H, Zhang Z, Zheng B, Zhai J, Zhang K, Wu W, Mei X, He M, Han B. Highly Effective and Chemoselective Hydrodeoxygenation of Aromatic Alcohols. Chem Sci 2022; 13:1629-1635. [PMID: 35282624 PMCID: PMC8827088 DOI: 10.1039/d1sc06430d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/19/2022] [Indexed: 11/21/2022] Open
Abstract
Effective hydrodeoxygenation (HDO) of aromatic alcohols is very attractive in both conventional organic synthesis and upgrading of biomass-derived molecules, but the selectivity of this reaction is usually low because of...
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Affiliation(s)
- Caiyun Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Haihong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Zhanrong Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Bingxiao Zheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Jianxin Zhai
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Kaili Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Wei Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Xuelei Mei
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Mingyuan He
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
| | - Buxing Han
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University Shanghai 200062 China
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
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7
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Sun R, Guo HY, Ma SS, Wang YF, Yu Z, Xu BH. Ru(dppbsa)-catalyzed hydrodeoxygenation and reductive etherification of ketones and aldehydes. Org Chem Front 2022. [DOI: 10.1039/d1qo01717a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ru(dppbsa)-catalyzed hydrodeoxygenation and reductive etherification of ketones and aldehydes were developed. The carbonyl substrates without β-CH functionality follow the hydrogenation-hydrogenolysis path, wherein the hydrogenolysis of the alkanol intermediates presents as...
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8
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Ning H, Chen Y, Wang Z, Mao S, Chen Z, Gong Y, Wang Y. Selective upgrading of biomass-derived benzylic ketones by (formic acid)–Pd/HPC–NH2 system with high efficiency under ambient conditions. Chem 2021. [DOI: 10.1016/j.chempr.2021.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Cook A, MacLean H, St. Onge P, Newman SG. Nickel-Catalyzed Reductive Deoxygenation of Diverse C–O Bond-Bearing Functional Groups. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03980] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Adam Cook
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Haydn MacLean
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Piers St. Onge
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Stephen G. Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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10
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Pannilawithana N, Pudasaini B, Baik MH, Yi CS. Experimental and Computational Studies on the Ruthenium-Catalyzed Dehydrative C-H Coupling of Phenols with Aldehydes for the Synthesis of 2-Alkylphenol, Benzofuran, and Xanthene Derivatives. J Am Chem Soc 2021; 143:13428-13440. [PMID: 34428913 DOI: 10.1021/jacs.1c06887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The cationic Ru-H complex [(C6H6)(PCy3)(CO)RuH]+BF4- (1) was found to be an effective catalyst for the dehydrative C-H coupling reaction of phenols and aldehydes to form 2-alkylphenol products. The coupling reaction of phenols with branched aldehydes selectively formed 1,1-disubstituted benzofurans, while the coupling reaction with salicylaldehydes yielded xanthene derivatives. A normal deuterium isotope effect was observed from the coupling reaction of 3-methoxyphenol with benzaldehyde and 2-propanol/2-propanol-d8 (kH/kD = 2.3 ± 0.3). The carbon isotope effect was observed on the benzylic carbon of the alkylation product from the coupling reaction of 3-methoxyphenol with 4-methoxybenzaldehyde (C(3) 1.021(3)) and on both benzylic and ortho-arene carbons from the coupling reaction with 4-trifluorobenzaldehdye (C(2) 1.017(3), C(3) 1.011(2)). The Hammett plot from the coupling reaction of 3-methoxyphenol with para-substituted benzaldehydes p-X-C6H4CHO (X = OMe, Me, H, F, Cl, CF3) displayed a V-shaped linear slope. Catalytically relevant Ru-H complexes were observed by NMR from a stoichiometric reaction mixture of 1, 3-methoxyphenol, benzaldehyde, and 2-propanol in CD2Cl2. The DFT calculations provided a detailed catalysis mechanism featuring an electrophilic aromatic substitution of the aldehyde followed by the hydrogenolysis of the hydroxy group. The calculations also revealed a mechanistic rationale for the strong electronic effect of the benzaldehdye substrates p-X-C6H4CHO (X = OMe, CF3) in controlling the turnover-limiting step. The catalytic C-H coupling method provides an efficient synthetic protocol for 2-alkylphenols, 1,1-disubstituted benzofurans, and xanthene derivatives without employing any reactive reagents or forming wasteful byproducts.
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Affiliation(s)
- Nuwan Pannilawithana
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233 United States
| | - Bimal Pudasaini
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Mu-Hyun Baik
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Chae S Yi
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233 United States
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11
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Antil N, Kumar A, Akhtar N, Newar R, Begum W, Manna K. Metal-Organic Framework-Confined Single-Site Base-Metal Catalyst for Chemoselective Hydrodeoxygenation of Carbonyls and Alcohols. Inorg Chem 2021; 60:9029-9039. [PMID: 34085831 DOI: 10.1021/acs.inorgchem.1c01008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Chemoselective deoxygenation of carbonyls and alcohols using hydrogen by heterogeneous base-metal catalysts is crucial for the sustainable production of fine chemicals and biofuels. We report an aluminum metal-organic framework (DUT-5) node support cobalt(II) hydride, which is a highly chemoselective and recyclable heterogeneous catalyst for deoxygenation of a range of aromatic and aliphatic ketones, aldehydes, and primary and secondary alcohols, including biomass-derived substrates under 1 bar H2. The single-site cobalt catalyst (DUT-5-CoH) was easily prepared by postsynthetic metalation of the secondary building units (SBUs) of DUT-5 with CoCl2 followed by the reaction of NaEt3BH. X-ray photoelectron spectroscopy and X-ray absorption near-edge spectroscopy (XANES) indicated the presence of CoII and AlIII centers in DUT-5-CoH and DUT-5-Co after catalysis. The coordination environment of the cobalt center of DUT-5-Co before and after catalysis was established by extended X-ray fine structure spectroscopy (EXAFS) and density functional theory. The kinetic and computational data suggest reversible carbonyl coordination to cobalt preceding the turnover-limiting step, which involves 1,2-insertion of the coordinated carbonyl into the cobalt-hydride bond. The unique coordination environment of the cobalt ion ligated by oxo-nodes within the porous framework and the rate independency on the pressure of H2 allow the deoxygenation reactions chemoselectively under ambient hydrogen pressure.
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Affiliation(s)
- Neha Antil
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ajay Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Naved Akhtar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Rajashree Newar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Wahida Begum
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Kuntal Manna
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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12
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Yang Z, Zhu X, Yang S, Cheng W, Zhang X, Yang Z. Iridium‐Catalysed Reductive Deoxygenation of Ketones with Formic Acid as Traceless Hydride Donor. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000821] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhiheng Yang
- Department of Pharmacy The First Affiliated Hospital Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Xueya Zhu
- Department of Pharmacy The First Affiliated Hospital Zhengzhou University Zhengzhou 450052 People's Republic of China
- Academy of Medical Science Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Shiyi Yang
- College of Chemistry Department of Organic Chemistry Beijing University of Chemical Technology Beijing 100029 People's Republic of China
| | - Weiyan Cheng
- Department of Pharmacy The First Affiliated Hospital Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Xiaojian Zhang
- Department of Pharmacy The First Affiliated Hospital Zhengzhou University Zhengzhou 450052 People's Republic of China
| | - Zhanhui Yang
- College of Chemistry Department of Organic Chemistry Beijing University of Chemical Technology Beijing 100029 People's Republic of China
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13
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Liu X, Liu R, Qiu J, Cheng X, Li G. Chemical‐Reductant‐Free Electrochemical Deuteration Reaction using Deuterium Oxide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005765] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xu Liu
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
| | - Ruoyu Liu
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
| | - Jiaxing Qiu
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology Zhejiang University of Technology Hangzhou 310032 China
| | - Guigen Li
- Institute of Chemistry and Biomedical Sciences Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering National Demonstration Center for, Experimental Chemistry Education Nanjing University Nanjing 210023 China
- Department of Chemistry and Biochemistry Texas Tech University Lubbock TX USA
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14
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Liu X, Liu R, Qiu J, Cheng X, Li G. Chemical-Reductant-Free Electrochemical Deuteration Reaction using Deuterium Oxide. Angew Chem Int Ed Engl 2020; 59:13962-13967. [PMID: 32394494 DOI: 10.1002/anie.202005765] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Indexed: 12/20/2022]
Abstract
We report a method for the electrochemical deuteration of α,β-unsaturated carbonyl compounds under catalyst- and external-reductant-free conditions, with deuteration rates as high as 99 % and yields up to 91 % in 2 h. The use of graphite felt for both the cathode and the anode was key to ensuring chemoselectivity and high deuterium incorporation under neutral conditions without the need for an external reductant. This method has a number of advantages over previously reported deuteration reactions that use stoichiometric metallic reductants. Mechanistic experiments showed that O2 evolution at the anode not only eliminates the need for an external reductant but also regulates the pH of the reaction mixture, keeping it approximately neutral.
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Affiliation(s)
- Xu Liu
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China
| | - Ruoyu Liu
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China
| | - Jiaxing Qiu
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China.,State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Guigen Li
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, National Demonstration Center for, Experimental Chemistry Education, Nanjing University, Nanjing, 210023, China.,Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
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15
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Recyclable Pd/C catalyzed one-step reduction of carbonyls to hydrocarbons under simple conditions without extra base. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151447] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Schwob T, Kunnas P, de Jonge N, Papp C, Steinrück HP, Kempe R. General and selective deoxygenation by hydrogen using a reusable earth-abundant metal catalyst. SCIENCE ADVANCES 2019; 5:eaav3680. [PMID: 31763445 PMCID: PMC6858257 DOI: 10.1126/sciadv.aav3680] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Abstract
Chemoselective deoxygenation by hydrogen is particularly challenging but crucial for an efficient late-stage modification of functionality-laden fine chemicals, natural products, or pharmaceuticals and the economic upgrading of biomass-derived molecules into fuels and chemicals. We report here on a reusable earth-abundant metal catalyst that permits highly chemoselective deoxygenation using inexpensive hydrogen gas. Primary, secondary, and tertiary alcohols as well as alkyl and aryl ketones and aldehydes can be selectively deoxygenated, even when part of complex natural products, pharmaceuticals, or biomass-derived platform molecules. The catalyst tolerates many functional groups including hydrogenation-sensitive examples. It is efficient, easy to handle, and conveniently synthesized from a specific bimetallic coordination compound and commercially available charcoal. Selective, sustainable, and cost-efficient deoxygenation under industrially viable conditions seems feasible.
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Affiliation(s)
- T. Schwob
- Inorganic Chemistry II–Catalyst Design, University of Bayreuth, 95440 Bayreuth, Germany
| | - P. Kunnas
- INM–Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
| | - N. de Jonge
- INM–Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
- Department of Physics, Saarland University, Campus A5 1, 66123 Saarbrücken, Germany
| | - C. Papp
- Physical Chemistry II, Department of Chemistry and Pharmacy, 91058 Erlangen, Germany
| | - H.-P. Steinrück
- Physical Chemistry II, Department of Chemistry and Pharmacy, 91058 Erlangen, Germany
| | - R. Kempe
- Inorganic Chemistry II–Catalyst Design, University of Bayreuth, 95440 Bayreuth, Germany
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17
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Xia A, Xie X, Hu X, Xu W, Liu Y. Dehalogenative Deuteration of Unactivated Alkyl Halides Using D 2O as the Deuterium Source. J Org Chem 2019; 84:13841-13857. [PMID: 31566377 DOI: 10.1021/acs.joc.9b02026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The general dehalogenation of alkyl halides with zinc using D2O or H2O as a deuterium or hydrogen donor has been developed. The method provides an efficient and economic protocol for deuterium-labeled derivatives with a wide substrate scope under mild reaction conditions. Mechanistic studies indicated that a radical process is involved for the formation of organozinc intermediates. The facile hydrolysis of the organozinc intermediates provides the driving force for this transformation.
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Affiliation(s)
- Aiyou Xia
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , People's Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , People's Republic of China
| | - Xiaoping Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , People's Republic of China
| | - Wei Xu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , People's Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , People's Republic of China
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18
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Kirinde Arachchige PT, Yi CS. Synthesis of Quinazoline and Quinazolinone Derivatives via Ligand-Promoted Ruthenium-Catalyzed Dehydrogenative and Deaminative Coupling Reaction of 2-Aminophenyl Ketones and 2-Aminobenzamides with Amines. Org Lett 2019; 21:3337-3341. [DOI: 10.1021/acs.orglett.9b01082] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | - Chae S. Yi
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881 United States
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19
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Wang S, Zhou P, Jiang L, Zhang Z, Deng K, Zhang Y, Zhao Y, Li J, Bottle S, Zhu H. Selective deoxygenation of carbonyl groups at room temperature and atmospheric hydrogen pressure over nitrogen-doped carbon supported Pd catalyst. J Catal 2018. [DOI: 10.1016/j.jcat.2018.10.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Okuda Y, Xu J, Ishida T, Wang CA, Nishihara Y. Nickel-Catalyzed Decarbonylative Alkylation of Aroyl Fluorides Assisted by Lewis-Acidic Organoboranes. ACS OMEGA 2018; 3:13129-13140. [PMID: 31458033 PMCID: PMC6644556 DOI: 10.1021/acsomega.8b02155] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 09/26/2018] [Indexed: 06/09/2023]
Abstract
Herein, nickel-catalyzed decarbonylative C-F bond alkylation of aroyl fluorides with organoboron reagents is reported. Aroyl fluorides are more chemically stable than the corresponding aroyl chlorides and can be readily synthesized from the corresponding carboxylic acids. The fluoronickel intermediate formed via oxidative addition interacts with Lewis-acidic trialkylboranes, and the subsequent decarbonylative alkylation proceeds. This new synthetic methodology allows 1,2-bifunctionalization of aromatic carboxylic acids via palladium-catalyzed ortho-C-H arylation. In addition, an unprecedented 1,4-nickel migration on ortho-arylated aroyl fluorides was observed. As a demonstration of the synthetic utility of the present reaction, the sequential 1-alkyl-2-arylation of 3-hydroxy-2-naphthoic acid was accomplished via chemoselective alkylation at a fluorocarbonyl moiety and the subsequent C-O bond arylation at an acetoxy group.
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21
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Popov S, Shao B, Bagdasarian AL, Benton TR, Zou L, Yang Z, Houk KN, Nelson HM. Teaching an old carbocation new tricks: Intermolecular C-H insertion reactions of vinyl cations. Science 2018; 361:381-387. [PMID: 30049877 DOI: 10.1126/science.aat5440] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/05/2018] [Indexed: 11/02/2022]
Abstract
Vinyl carbocations have been the subject of extensive experimental and theoretical studies over the past five decades. Despite this long history in chemistry, the utility of vinyl cations in chemical synthesis has been limited, with most reactivity studies focusing on solvolysis reactions or intramolecular processes. Here we report synthetic and mechanistic studies of vinyl cations generated through silylium-weakly coordinating anion catalysis. We find that these reactive intermediates undergo mild intermolecular carbon-carbon bond-forming reactions, including carbon-hydrogen (C-H) insertion into unactivated sp3 C-H bonds and reductive Friedel-Crafts reactions with arenes. Moreover, we conducted computational studies of these alkane C-H functionalization reactions and discovered that they proceed through nonclassical, ambimodal transition structures. This reaction manifold provides a framework for the catalytic functionalization of hydrocarbons using simple ketone derivatives.
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Affiliation(s)
- Stasik Popov
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Brian Shao
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Alex L Bagdasarian
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Tyler R Benton
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Luyi Zou
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA.,Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China
| | - Zhongyue Yang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Hosea M Nelson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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22
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Simonetti M, Kuniyil R, Macgregor SA, Larrosa I. Benzoate Cyclometalation Enables Oxidative Addition of Haloarenes at a Ru(II) Center. J Am Chem Soc 2018; 140:11836-11847. [PMID: 30134657 PMCID: PMC6192667 DOI: 10.1021/jacs.8b08150] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
![]()
The
first Ru(II)-catalyzed arylation of substrates without a directing
group was recently developed. Remarkably, this process only worked
in the presence of a benzoate additive, found to be crucial for the
oxidative addition step at Ru(II). However, the exact mode of action
of the benzoate was unknown. Herein, we disclose a mechanistic study
that elucidates the key role of the benzoate salt in the C–H
arylation of fluoroarenes with aryl halides. Through a combination
of rationally designed stoichiometric experiments and DFT studies,
we demonstrate that the aryl–Ru(II) species arising from initial
C–H activation of the fluoroarene undergoes cyclometalation
with the benzoate to generate an anionic Ru(II) intermediate. The
enhanced lability of this intermediate, coupled with the electron-rich
anionic Ru(II) metal center renders the oxidative addition of the
aryl halide accessible. The role of an additional (NMe4)OC(CF3)3 additive in facilitating the overall
arylation process is also shown to be linked to a shift in the C–H
pre-equilibrium associated with benzoate cyclometalation.
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Affiliation(s)
- Marco Simonetti
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , U.K
| | - Rositha Kuniyil
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , U.K
| | - Stuart A Macgregor
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , U.K
| | - Igor Larrosa
- School of Chemistry , University of Manchester , Oxford Road , Manchester M13 9PL , U.K
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23
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Dong Z, Yuan J, Xiao Y, Mao P, Wang W. Room Temperature Chemoselective Deoxygenation of Aromatic Ketones and Aldehydes Promoted by a Tandem Pd/TiO 2 + FeCl 3 Catalyst. J Org Chem 2018; 83:11067-11073. [PMID: 30126268 DOI: 10.1021/acs.joc.8b01667] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A rapid and practical protocol for the chemoselective deoxygenation of various aromatic ketones and aldehydes was described, which used a tandem catalyst composed of heterogeneous Pd/TiO2 + homogeneous FeCl3 with the green hydrogen source, polymethylhydrosiloxane (PMHS). The developed catalytic system was robust and scalable, as exemplified by the deoxygenation of acetophenone, which was performed on a gram scale in an atmospheric environment utilizing only 0.4 mol % Pd/TiO2 + 10 mol % FeCl3 catalyst to give the corresponding ethylbenzene in 96% yield within 10 min at room temperature. Furthermore, the Pd/TiO2 catalyst was shown to be recyclable up to three times without an observable decrease in efficiency and it exhibited low metal leaching under the reaction conditions. Insights toward the reaction mechanism of Pd-catalyzed reductive deoxygenation for aromatic ketones and aldehydes were investigated through operando IR, NMR, and GC-MS techniques.
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Affiliation(s)
- Zhenhua Dong
- College of Chemistry, Chemical and Environmental Engineering , Henan University of Technology , Lianhua Street 100 , Zhengzhou 450001 , China
| | - Jinwei Yuan
- College of Chemistry, Chemical and Environmental Engineering , Henan University of Technology , Lianhua Street 100 , Zhengzhou 450001 , China
| | - Yongmei Xiao
- College of Chemistry, Chemical and Environmental Engineering , Henan University of Technology , Lianhua Street 100 , Zhengzhou 450001 , China
| | - Pu Mao
- College of Chemistry, Chemical and Environmental Engineering , Henan University of Technology , Lianhua Street 100 , Zhengzhou 450001 , China
| | - Wentao Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Zhongshan Road 457 , Dalian 116023 , China
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24
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Ciszek B, Fleischer I. Homogeneous Palladium-Catalyzed Transfer Hydrogenolysis of Benzylic Alcohols Using Formic Acid as Reductant. Chemistry 2018; 24:12259-12263. [DOI: 10.1002/chem.201801466] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Benjamin Ciszek
- Institute of Organic Chemistry; Eberhard Karls University of Tuebingen; Auf der Morgenstelle 18 72076 Tuebingen Germany
| | - Ivana Fleischer
- Institute of Organic Chemistry; Eberhard Karls University of Tuebingen; Auf der Morgenstelle 18 72076 Tuebingen Germany
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25
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Arachchige PTK, Lee H, Yi CS. Synthesis of Symmetric and Unsymmetric Secondary Amines from the Ligand-Promoted Ruthenium-Catalyzed Deaminative Coupling Reaction of Primary Amines. J Org Chem 2018; 83:4932-4947. [PMID: 29665681 DOI: 10.1021/acs.joc.8b00649] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The catalytic system generated in situ from the tetranuclear Ru-H complex with a catechol ligand (1/L1) was found to be effective for the direct deaminative coupling of two primary amines to form secondary amines. The catalyst 1/L1 was highly chemoselective for promoting the coupling of two different primary amines to afford unsymmetric secondary amines. The analogous coupling of aniline with primary amines formed aryl-substituted secondary amines. The treatment of aniline- d7 with 4-methoxybenzylamine led to the coupling product with significant deuterium incorporation on CH2 (18% D). The most pronounced carbon isotope effect was observed on the α-carbon of the product isolated from the coupling reaction of 4-methoxybenzylamine (C(1) = 1.015(2)). A Hammett plot was constructed from measuring the rates of the coupling reaction of 4-methoxyaniline with a series of para-substituted benzylamines 4-X-C6H4CH2NH2 (X = OMe, Me, H, F, CF3) (ρ = -0.79 ± 0.1). A plausible mechanistic scheme has been proposed for the coupling reaction on the basis of these results. The catalytic coupling method provides an operationally simple and chemoselective synthesis of secondary amine products without using any reactive reagents or forming wasteful byproducts.
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Affiliation(s)
| | - Hanbin Lee
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Chae S Yi
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
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26
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Zhang MJ, Tan DW, Li HX, Young DJ, Wang HF, Li HY, Lang JP. Switchable Chemoselective Transfer Hydrogenations of Unsaturated Carbonyls Using Copper(I) N-Donor Thiolate Clusters. J Org Chem 2018; 83:1204-1215. [DOI: 10.1021/acs.joc.7b02676] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meng-Juan Zhang
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 Jiangsu, People’s Republic of China
| | - Da-Wei Tan
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 Jiangsu, People’s Republic of China
| | - Hong-Xi Li
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 Jiangsu, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
| | - David James Young
- Faculty
of Science and Engineering, University of the Sunshine Coast, Maroochydore
DC, Queensland 4558, Australia
| | - Hui-Fang Wang
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 Jiangsu, People’s Republic of China
| | - Hai-Yan Li
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 Jiangsu, People’s Republic of China
| | - Jian-Ping Lang
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 Jiangsu, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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27
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Structural Determination of Ruthenium Complexes Containing Bi-Dentate Pyrrole-Ketone Ligands. MOLECULES (BASEL, SWITZERLAND) 2018; 23:molecules23010159. [PMID: 29342833 PMCID: PMC6016999 DOI: 10.3390/molecules23010159] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/06/2018] [Accepted: 01/12/2018] [Indexed: 12/28/2022]
Abstract
A series of ruthenium compounds containing a pyrrole-ketone bidentate ligand, 2-(2′-methoxybenzoyl)pyrrole (1), have been synthesized and characterized. Reacting 1 with [(η6-cymene)RuCl2]2 and RuHCl(CO)(PPh3)3 generated Ru(η6-cymene)[C4H3N-2-(CO-C6H4-2-OMe)]Cl (2) and {RuCl(CO)(PPh3)2[C4H3N-2-(COC6H4-2-OMe)]} (3), respectively, in moderate yields. Successively reacting 2 with sodium cyanate and sodium azide gave {Ru(η6-cymene)[C4H3N-2-(CO-C6H4-2-OMe)]X} (4, X=OCN; 5, X=N3) with the elimination of sodium chloride. Compounds 2–5 were all characterized by 1H and 13C-NMR spectra and their structures were also determined by X-ray single crystallography.
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28
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Unsleber JP, Neugebauer J, Morris RH. DFT methods applied to answer the question: how accurate is the ligand acidity constant method for estimating the pKa of transition metal hydride complexes MHXL4 when X is varied? Dalton Trans 2018; 47:2739-2747. [DOI: 10.1039/c7dt03473c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Additive ligand acidity constants AL of anionic ligands are calculated for neutral hydrides of iron(ii), ruthenium(ii) and osmium(ii) with phosphine and carbonyl co-ligands; constant AL in green, more variable AL in red.
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Affiliation(s)
- Jan P. Unsleber
- Theoretische Organische Chemie
- Organisch-Chemisches Institut and Center for Multiscale Theory and Computation
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Johannes Neugebauer
- Theoretische Organische Chemie
- Organisch-Chemisches Institut and Center for Multiscale Theory and Computation
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
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29
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Thenmozhi S, Kadirvelu K. Transfer hydrogenation and hydration of aromatic aldehydes and nitriles using heterogeneous NiO nanofibers as a catalyst. NEW J CHEM 2018. [DOI: 10.1039/c8nj03433h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NiO NFs as an efficient heterogeneous catalyst for the synthesis of aromatic alcohols and amides.
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Affiliation(s)
- S. Thenmozhi
- Defence Research and Development Organisation-Bharathiar University Centre for Life Sciences
- Coimbatore – 641 046
- India
| | - K. Kadirvelu
- Defence Research and Development Organisation-Bharathiar University Centre for Life Sciences
- Coimbatore – 641 046
- India
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30
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Clean and selective catalytic C-H alkylation of alkenes with environmental friendly alcohols. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.molcata.2016.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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31
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Bakos M, Gyömöre Á, Domján A, Soós T. Auto-Tandem Catalysis with Frustrated Lewis Pairs for Reductive Etherification of Aldehydes and Ketones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700231] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mária Bakos
- Research Centre for Natural Sciences; Hungarian Academy of Sciences; Institute of Organic Chemistry; Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Ádám Gyömöre
- Research Centre for Natural Sciences; Hungarian Academy of Sciences; Institute of Organic Chemistry; Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Attila Domján
- Research Centre for Natural Sciences; Hungarian Academy of Sciences; Institute of Organic Chemistry; Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Tibor Soós
- Research Centre for Natural Sciences; Hungarian Academy of Sciences; Institute of Organic Chemistry; Magyar tudósok körútja 2 1117 Budapest Hungary
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32
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Bakos M, Gyömöre Á, Domján A, Soós T. Auto-Tandem Catalysis with Frustrated Lewis Pairs for Reductive Etherification of Aldehydes and Ketones. Angew Chem Int Ed Engl 2017; 56:5217-5221. [PMID: 28378401 DOI: 10.1002/anie.201700231] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/10/2017] [Indexed: 01/19/2023]
Abstract
Herein we report that a single frustrated Lewis pair (FLP) catalyst can promote the reductive etherification of aldehydes and ketones. The reaction does not require an exogenous acid catalyst, but the combined action of FLP on H2 , R-OH or H2 O generates the required Brønsted acid in a reversible, "turn on" manner. The method is not only a complementary metal-free reductive etherification, but also a niche procedure for ethers that would be either synthetically inconvenient or even intractable to access by alternative synthetic protocols.
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Affiliation(s)
- Mária Bakos
- Research Centre for Natural Sciences, Hungarian Academy of Sciences, Institute of Organic Chemistry, Magyar tudósok körútja 2, 1117, Budapest, Hungary
| | - Ádám Gyömöre
- Research Centre for Natural Sciences, Hungarian Academy of Sciences, Institute of Organic Chemistry, Magyar tudósok körútja 2, 1117, Budapest, Hungary
| | - Attila Domján
- Research Centre for Natural Sciences, Hungarian Academy of Sciences, Institute of Organic Chemistry, Magyar tudósok körútja 2, 1117, Budapest, Hungary
| | - Tibor Soós
- Research Centre for Natural Sciences, Hungarian Academy of Sciences, Institute of Organic Chemistry, Magyar tudósok körútja 2, 1117, Budapest, Hungary
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33
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Liu SY, Xu LY, Liu CY, Ren ZG, Young DJ, Lang JP. Efficient alkylation of ketones with primary alcohols catalyzed by ruthenium(II)/P,N ligand complexes. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Yang XY, Chen LH, Li Y, Rooke JC, Sanchez C, Su BL. Hierarchically porous materials: synthesis strategies and structure design. Chem Soc Rev 2017; 46:481-558. [DOI: 10.1039/c6cs00829a] [Citation(s) in RCA: 839] [Impact Index Per Article: 119.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review addresses recent advances in synthesis strategies of hierarchically porous materials and their structural design from micro-, meso- to macro-length scale.
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Affiliation(s)
- Xiao-Yu Yang
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Li-Hua Chen
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Yu Li
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Joanna Claire Rooke
- Laboratory of Inorganic Materials Chemistry (CMI)
- University of Namur
- B-5000 Namur
- Belgium
| | - Clément Sanchez
- Chimie de la Matiere Condensee de Paris
- UniversitePierre et Marie Curie (Paris VI)
- Collège de France
- France
| | - Bao-Lian Su
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
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35
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Abstract
Methods for the determination of 2H KIEs at natural abundance of deuterium have not been widely used due to the requirement for very long NMR times or large reaction scale. We previously reported a simple methodology for reducing these restrictions by the addition of a small amount of deuterated substrate. Herein, we evaluate the deuterium loadings that give the lowest errors in the determination of 2H KIEs. Our simulations indicate that our approach leads to a 4000-fold reduction in NMR time over natural abundance methods.
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36
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Kuriyama M, Hamaguchi N, Yano G, Tsukuda K, Sato K, Onomura O. Deuterodechlorination of Aryl/Heteroaryl Chlorides Catalyzed by a Palladium/Unsymmetrical NHC System. J Org Chem 2016; 81:8934-8946. [PMID: 27641511 DOI: 10.1021/acs.joc.6b01609] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The catalytic deuterodechlorination of aryl/heteroaryl chlorides was developed with a palladium/unsymmetrical NHC system, and the precisely controlled introduction of deuterium into a variety of aryl/heteroaryl compounds was achieved with a high level of efficiency, selectivity, and deuteration degree. This method was also successfully applied to the transformation of bioactive agents even in a gram-scale synthesis. The crystal structure analysis of Pd-NHC complexes led to the observation of Pd-arene interaction.
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Affiliation(s)
- Masami Kuriyama
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Norihisa Hamaguchi
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Gemba Yano
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kotaro Tsukuda
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kanako Sato
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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37
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Ahmad T, Dansereau J, Hébert M, Grand-Maître C, Larivée A, Siddiqui A, Gagnon A. Preparation of 3-O-aryl chloramphenicol derivatives via chemoselective copper-catalyzed O-arylation of (1R,2R)-(−)-N-BOC-2-amino-1-(4-nitrophenyl)-1,3-propanediol using triarylbismuthines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Poater A, Vummaleti SVC, Polo A, Cavallo L. Mechanistic Insights of a Selective C-H Alkylation of Alkenes by a Ru-based Catalyst and Alcohols. ChemistrySelect 2016. [DOI: 10.1002/slct.201600860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química; Universitat de Girona, Campus Montilivi; 17003 Girona, Catalonia Spain
| | - Sai Vikrama Chaitanya Vummaleti
- KAUST Catalysis Center, Physical Sciences and Engineering Division; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabia
| | - Alfonso Polo
- Institut de Química Computacional i Catàlisi and Departament de Química; Universitat de Girona, Campus Montilivi; 17003 Girona, Catalonia Spain
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabia
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39
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Sousa SCA, Fernandes TA, Fernandes AC. Highly Efficient Deoxygenation of Aryl Ketones to Arylalkanes Catalyzed by Dioxidomolybdenum Complexes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600441] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sara C. A. Sousa
- Centro de Química Estrutural; Instituto Superior Técnico; Av. Rovisco Pais, 1 1049-001 Lisboa Portugal
| | - Tiago A. Fernandes
- Centro de Química Estrutural; Instituto Superior Técnico; Av. Rovisco Pais, 1 1049-001 Lisboa Portugal
| | - Ana C. Fernandes
- Centro de Química Estrutural; Instituto Superior Técnico; Av. Rovisco Pais, 1 1049-001 Lisboa Portugal
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40
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Lee H, Yi CS. Catalytic Synthesis of Substituted Indoles and Quinolines from the Dehydrative C-H Coupling of Arylamines with 1,2- and 1,3-Diols. Organometallics 2016; 35:1973-1977. [PMID: 30505062 DOI: 10.1021/acs.organomet.6b00273] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cationic ruthenium-hydride complex catalyzes dehydrative C-H coupling reaction of arylamines with 1,2-diols to form the indole products. The analogous coupling of arylamines with 1,3-diols afforded the substituted quinolines. The catalytic method directly forms these coupling products in a highly regioselective manner without generating any toxic byproducts.
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Affiliation(s)
- Hanbin Lee
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881 United States
| | - Chae S Yi
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881 United States
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