1
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Maeda K, Matsubara R, Hayashi M. Synthesis of Substituted Anilines from Cyclohexanones Using Pd/C-Ethylene System and Its Application to Indole Synthesis. Org Lett 2021; 23:1530-1534. [PMID: 33606535 DOI: 10.1021/acs.orglett.0c04056] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of anilines and indoles from cyclohexanones using a Pd/C-ethylene system is reported. A simple combination of NH4OAc and K2CO3 under nonaerobic conditions was found to be the most suitable to perform this reaction. Hydrogen transfer between cyclohexanone and ethylene generates the desired products. The reaction tolerates a variety of substitutions on the starting cyclohexanones.
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Affiliation(s)
- Katsumi Maeda
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Ryosuke Matsubara
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Masahiko Hayashi
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
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2
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Guo W, Cai L, Xie Z, Mei W, Liu G, Deng L, Zhuo X, Zhong Y, Zou X, Zheng L, Fan X. Photocatalyzed intermolecular amination for the synthesis of hydrazonamides. Org Chem Front 2021. [DOI: 10.1039/d1qo00338k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A photocatalyzed intermolecular amination strategy for the synthesis of hydrazonamides is reported by a multi-component reaction of β-ketonitriles with N,N-disubstituted hydrazines.
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Affiliation(s)
- Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Liuhuan Cai
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Zhen Xie
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Weijie Mei
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Gongping Liu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Ling Deng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaoya Zhuo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaoying Zou
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaolin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
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3
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Cao D, Yu J, Zeng H, Li CJ. Dearomatization-Rearomatization Strategy for Synthesizing Carbazoles with 2,2'-Biphenols and Ammonia by Dual C(Ar)-OH Bond Cleavages. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:13200-13205. [PMID: 32223264 DOI: 10.1021/acs.jafc.0c00644] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Carbazole is an essential building block in various pharmaceuticals, agrochemicals, natural products, and materials. For future sustainability, it is highly desirable to synthesize carbazole derivatives directly from renewable resources or cheap raw materials. Phenolic compounds are a class of degradation products of lignin. On the other hand, ammonia is a very cheap industrial inorganic chemical. Herein, an efficient dearomatization-rearomatization strategy has been developed to directly cross-couple 2,2'-biphenols with ammonia by dual C(Ar)-OH bond cleavages. This strategy provides a greener pathway to synthesize valuable carbazole derivatives from phenols.
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Affiliation(s)
- Dawei Cao
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Jing Yu
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
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4
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Qiu Z, Zeng H, Li CJ. Coupling without Coupling Reactions: En Route to Developing Phenols as Sustainable Coupling Partners via Dearomatization-Rearomatization Processes. Acc Chem Res 2020; 53:2395-2413. [PMID: 32941014 DOI: 10.1021/acs.accounts.0c00479] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Transition-metal-catalyzed cross-coupling reactions represent one of the most straightforward and efficient protocols to assemble two different molecular motifs for the construction of carbon-carbon or carbon-heteroatom bonds. Because of their importance and wide applications in pharmaceuticals, agrochemicals, materials, etc., cross-coupling reactions have been well recognized in the 2010 Nobel Prize in chemistry. However, in the classical transition-metal-catalyzed cross-coupling reactions (e.g., the Suzuki-Miyaura, the Buchwald-Hartwig, and the Ullmann cross-coupling reactions), organohalides, which mainly stem from the nonrenewable fossil resources, are often utilized as coupling partners with halide wastes being generated after the reactions. To make cross-coupling reactions more sustainable, we initiated a general research program by employing phenols and cyclohexa(e)nones (the reduced forms of phenols) as pivotal feedstocks (coupling partners), instead of the commonly used fossil-derived organohalides, for cross-coupling reactions to build C-O, C-N, and C-C bonds. Phenols (cyclohexa(e)nones) are widely available and can be obtained from lignin biomass, highlighting their renewable and sustainable features. Moreover, water is expected to be the only stoichiometric byproduct, thus avoiding halide wastes.Notably, the cross-coupling reactions utilizing phenols/cyclohexa(e)nones are not based on the traditional transition-metal-catalyzed "oxidative-addition and reductive-elimination" mechanism, but via a novel "phenol-cyclohexanone" redox couple. This new working mechanism opens up new horizons of designing cross-coupling reactions via simple nucleophilic addition of cyclohexanones along with aromatization processes, thereby simplifying the design and avoiding laborious optimization of transition-metal precursors (e.g., Pd, Ni, Cu, etc.), as well as ligands in classical transition-metal-catalyzed cross-coupling reactions. Specifically, in this Account, we will summarize and discuss our related research work in the following three categories: "formal oxidative couplings of cyclohexa(e)nones", "formal reductive couplings of phenols", and "formal redox-neutral couplings of phenols". The successes of these research projects clearly demonstrated our initial inspirations and rational designs to develop cross-coupling reactions without the "conventional cross-coupling conditions" by pushing the reaction frontiers from initial cyclohexanones, ultimately, to the sustainable phenol targets.
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Affiliation(s)
- Zihang Qiu
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Road, Lanzhou 730000, P. R. China
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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5
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Li CJ, Zeng H, Lang Y. Dearomatization–Rearomatization Strategy for Palladium-Catalyzed C–N Cross-Coupling Reactions. Synlett 2020. [DOI: 10.1055/s-0040-1705901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractSubstituted aromatic compounds play important roles in materials, biological agents, dyes, etc. Thus, the synthesis of substituted aromatic compounds has been a hot topic throughout the history of organic chemistry. Traditionally, the Friedel–Crafts reaction was a powerful tool for synthesizing substituted aromatic compounds. In recent decades, metal-catalyzed cross-coupling reactions were well developed via carbon–heteroatom bond cleavage, however, having difficulties towards some strong bonds, such as C(Ar)–OH. To overcome such challenges, newer strategies are needed. In this review, we summarize the recent efforts in the development of dearomatization–rearomatization strategy for cross-coupling reactions via C(Ar)–O bond cleavage.1 Introduction2 Dearomatization–Rearomatization Strategy for Cross-Coupling of Phenols3 Dearomatization–Rearomatization Strategy for Cross-Coupling of Biphenols4 Dearomatization–Rearomatization Strategy for Cross-Coupling of Diphenyl Ethers5 Dearomatization–Rearomatization Strategy for Cross-Coupling of Indoles6 Summary
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Affiliation(s)
- Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
| | - Yatao Lang
- The State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
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6
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Qiu Z, Li CJ. Transformations of Less-Activated Phenols and Phenol Derivatives via C–O Cleavage. Chem Rev 2020; 120:10454-10515. [DOI: 10.1021/acs.chemrev.0c00088] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zihang Qiu
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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7
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Xia Z, Li F, Xu L, Feng P. A stable and highly selective metalloporphyrin based framework for the catalytic oxidation of cyclohexene. Dalton Trans 2020; 49:11157-11162. [PMID: 32744270 DOI: 10.1039/d0dt01420f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new metalloporphyrin framework of molybdenum Mo2O4(C48H28N4O8)·(CH3)2NH·5H2O·2DMF (Mo2TCPP) was synthesized from tetrakis(4-carboxyphenyl)porphyrin (H4TCPP) and sodium molybdate dihydrate by a hydrothermal method. Mo2TCPP is a 3D network with two sub-units, in which both TCPP ligands and each Mo2 dimer act as four connection nodes. The crystal structure was determined by single crystal analysis and further characterized by FTIR, SEM, EDX, PXRD, XPS and TGA. Here cumene hydrogen peroxide and hydrogen peroxide were used as oxidants to study the catalytic activity of new metalloporphyrins in the oxidation of cyclohexene at different temperatures. The conversion rate of cyclohexene and the selectivity of epoxycyclohexane were both higher than 99%, which was better than the previously published research results. The stability of the catalyst before and after the reaction was further tested for 10 runs without obvious degradation. The catalyst was stable in different solutions such as acidic, water and alkaline. These results shed light on the future development of new catalytic materials based on metalloporphyrin.
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Affiliation(s)
- Zhinan Xia
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China.
| | - Fengyan Li
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China. and Department of Chemistry, University of California, Riverside, California 92521, USA.
| | - Lin Xu
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China.
| | - Pingyun Feng
- Department of Chemistry, University of California, Riverside, California 92521, USA.
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8
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Liu F, Jiang H, Zhou Y, Shi Z. Direct Transformation of Arenols Based on C—O Activation. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900506] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Feng Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology 100 Haiquan Rd Shanghai 201418 China
- Department of ChemistryFudan University 2005 Honghu Rd Shanghai 200438 China
| | - Hao‐jun Jiang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology 100 Haiquan Rd Shanghai 201418 China
| | - Yi Zhou
- School of Perfume and Aroma Technology, Shanghai Institute of Technology 100 Haiquan Rd Shanghai 201418 China
| | - Zhang‐jie Shi
- Department of ChemistryFudan University 2005 Honghu Rd Shanghai 200438 China
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9
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Takayama S, Yatabe T, Koizumi Y, Jin X, Nozaki K, Mizuno N, Yamaguchi K. Synthesis of unsymmetrically substituted triarylamines via acceptorless dehydrogenative aromatization using a Pd/C and p-toluenesulfonic acid hybrid relay catalyst. Chem Sci 2020; 11:4074-4084. [PMID: 34122873 PMCID: PMC8152582 DOI: 10.1039/c9sc06442g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
An efficient and convenient procedure for synthesizing triarylamines based on a dehydrogenative aromatization strategy has been developed. A hybrid relay catalyst comprising carbon-supported Pd (Pd/C) and p-toluenesulfonic acid (TsOH) was found to be effective for synthesizing a variety of triarylamines bearing different aryl groups starting from arylamines (diarylamines or anilines), using cyclohexanones as the arylation sources under acceptorless conditions with the release of gaseous H2. The proposed reaction comprises the following relay steps: condensation of arylamines and cyclohexanones to produce imines or enamines, dehydrogenative aromatization of the imines or enamines over Pd nanoparticles (NPs), and elimination of H2 from the Pd NPs. In this study, an interesting finding was obtained indicating that TsOH may promote the dehydrogenation. An efficient and convenient procedure for synthesizing triarylamines based on a dehydrogenative aromatization strategy has been developed.![]()
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Affiliation(s)
- Satoshi Takayama
- Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan +81-3-5841-7220
| | - Takafumi Yatabe
- Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan +81-3-5841-7220
| | - Yu Koizumi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan +81-3-5841-7220
| | - Xiongjie Jin
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan +81-3-5841-7220
| | - Kazuya Yamaguchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan +81-3-5841-7220
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10
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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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11
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Monika, Ansari A. Mechanistic insights into the allylic oxidation of aliphatic compounds by tetraamido iron( v) species: A C–H vs. O–H bond activation. NEW J CHEM 2020. [DOI: 10.1039/d0nj03095c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work is based on a deep insight into a comparative study of C–H vs. O–H bond activation of allylic compound by the high valent iron complex. Our theoretical findings can help to design catalysts with better efficiency for catalytic reactions.
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Affiliation(s)
- Monika
- Department of Chemistry
- Central University of Haryana
- Mahendergarh-123031
- India
| | - Azaj Ansari
- Department of Chemistry
- Central University of Haryana
- Mahendergarh-123031
- India
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12
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Wang Z, Niu J, Zeng H, Li CJ. Construction of Spirocyclic Tetrahydro-β-carbolines via Cross-Annulation of Phenols with Tryptamines in Water. Org Lett 2019; 21:7033-7037. [PMID: 31436437 DOI: 10.1021/acs.orglett.9b02613] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Phenols are readily available by degradation of lignin resource. Palladium-catalyzed conversion of phenols to tetrahydro-β-carboline skeletons bearing a spirocycle at the C-1 position in water is reported. Various substituted phenols are successfully cross-annulated with different tryptamines via sequential C(Ar)-O bond cleavage of phenols, C-H bond activation of tryptamines, and C-N/C-C bond formations. This method provides a new protocol of converting lignin phenols into high-value-added compounds, such as natural product Komavine.
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Affiliation(s)
- Zemin Wang
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jiabin Niu
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
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13
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Bi HY, Du M, Pan CX, Xiao Y, Su GF, Mo DL. Nickel(II)-Catalyzed [5 + 1] Annulation of 2-Carbonyl-1-propargylindoles with Hydroxylamine To Synthesize Pyrazino[1,2- a]indole-2-oxides in Water. J Org Chem 2019; 84:9859-9868. [PMID: 31347845 DOI: 10.1021/acs.joc.9b00784] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An atom-economical and practical method for the efficient synthesis of various pyrazino[1,2-a]indole-2-oxides was developed through a nickel(II)-catalyzed [5 + 1] annulation of 2-carbonyl-1-propargylindoles with hydroxylamine in water without using an organic solvent. The reaction involved an initial condensation of 2-carbonyl-1-propargylindoles with hydroxylamine to afford oxime intermediates, which then underwent a nickel(II)-catalyzed 6-exo-dig cyclization. Preliminary studies showed that (n-Bu)4NI served as a phase transfer catalyst and promoted the formation of active nickel(II) species. More importantly, the nickel(II) salt and phase transfer catalyst-in-water could be recycled seven times, and a gram scalable product was easily obtained in good yields through a filtration and washing protocol.
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Affiliation(s)
- Hong-Yan Bi
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , 15 Yu Cai Road , Guilin 541004 , China
| | - Min Du
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , 15 Yu Cai Road , Guilin 541004 , China
| | - Cheng-Xue Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , 15 Yu Cai Road , Guilin 541004 , China
| | - Yuhong Xiao
- School of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan 411201 , P. R. China
| | - Gui-Fa Su
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , 15 Yu Cai Road , Guilin 541004 , China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences , Guangxi Normal University , 15 Yu Cai Road , Guilin 541004 , China
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14
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Dominguez-Huerta A, Perepichka I, Li CJ. Direct Synthesis of Diphenylamines from Phenols and Ammonium Formate Catalyzed by Palladium. CHEMSUSCHEM 2019; 12:2999-3002. [PMID: 31039284 DOI: 10.1002/cssc.201900928] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 04/29/2019] [Indexed: 06/09/2023]
Abstract
Arylamines are commercially and synthetically useful compounds with a wide variety of applications. Their preparation has been traditionally achieved using metal-catalyzed C-N coupling reactions with aryl halides. In this work, 17 different diarylamines are prepared from phenols by using ammonium formate as the aminating reagent. Phenolic compounds are more desirable feedstocks, owing to their availability from lignin, making them valuable biorenewable alternatives to aryl halides. Ammonium formate is found to be a convenient surrogate for ammonia and a useful aminating reagent for phenols. Diarylamine products are obtained in good to excellent yields while only water and CO2 are generated as byproducts of the transformation.
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Affiliation(s)
- Alejandra Dominguez-Huerta
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec, H3A 0B8, Canada
| | - Inna Perepichka
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec, H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec, H3A 0B8, Canada
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15
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Chen J, Ouyang C, Xiao T, Jiang H, Li J. Metal‐Free Synthesis of Coumarin‐fused Pyrimidines from 4‐Aminocoumarins via Pseudo Four‐component Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201901803] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jing Chen
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationSchool of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Chu‐Hao Ouyang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationSchool of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Ting Xiao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationSchool of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Hu Jiang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationSchool of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Jiang‐Sheng Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and TransportationSchool of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
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16
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Qiu Z, Lv L, Li J, Li CC, Li CJ. Direct conversion of phenols into primary anilines with hydrazine catalyzed by palladium. Chem Sci 2019; 10:4775-4781. [PMID: 31160954 PMCID: PMC6509994 DOI: 10.1039/c9sc00595a] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 03/26/2019] [Indexed: 12/19/2022] Open
Abstract
Primary anilines are essential building blocks to synthesize various pharmaceuticals, agrochemicals, pigments, electronic materials, and others. To date, the syntheses of primary anilines mostly rely on the reduction of nitroarenes or the transition-metal-catalyzed Ullmann, Buchwald-Hartwig and Chan-Lam cross-coupling reactions with ammonia, in which non-renewable petroleum-based chemicals are typically used as feedstocks via multiple step syntheses. A long-standing scientific challenge is to synthesize various primary anilines directly from renewable sources. Herein, we report a general method to directly convert a broad range of phenols into the corresponding primary anilines with the cheap and widely available hydrazine as both amine and hydride sources with simple Pd/C as the catalyst.
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Affiliation(s)
- Zihang Qiu
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis , McGill University , 801 Sherbrooke St. W. , Montreal , Quebec H3A 0B8 , Canada .
| | - Leiyang Lv
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis , McGill University , 801 Sherbrooke St. W. , Montreal , Quebec H3A 0B8 , Canada .
| | - Jianbin Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis , McGill University , 801 Sherbrooke St. W. , Montreal , Quebec H3A 0B8 , Canada .
| | - Chen-Chen Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis , McGill University , 801 Sherbrooke St. W. , Montreal , Quebec H3A 0B8 , Canada .
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis , McGill University , 801 Sherbrooke St. W. , Montreal , Quebec H3A 0B8 , Canada .
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17
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Wang Z, Zeng H, Li CJ. Dearomatization–Rearomatization Strategy for Reductive Cross-Coupling of Indoles with Ketones in Water. Org Lett 2019; 21:2302-2306. [PMID: 30908058 DOI: 10.1021/acs.orglett.9b00591] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zemin Wang
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Road, Lanzhou 730000, People’s Republic of China
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Road, Lanzhou 730000, People’s Republic of China
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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18
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Zeng H, Wang Z, Li C. Two‐in‐One Strategy for Palladium‐Catalyzed C−H Functionalization in Water. Angew Chem Int Ed Engl 2019; 58:2859-2863. [PMID: 30575240 DOI: 10.1002/anie.201813391] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Huiying Zeng
- The State Key Laboratory of Applied Organic ChemistryLanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Zemin Wang
- The State Key Laboratory of Applied Organic ChemistryLanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Chao‐Jun Li
- The State Key Laboratory of Applied Organic ChemistryLanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
- Department of Chemistry and FQRNT Centre for Green Chemistry and CatalysisMcGill University 801 Sherbrooke St. West Montreal Quebec H3A 0B8 Canada
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19
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Dominguez-Huerta A, Dai XJ, Zhou F, Querard P, Qiu Z, Ung S, Liu W, Li J, Li CJ. Exploration of new reaction tools for late-stage functionalization of complex chemicals. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0357] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Chemistry has always had as a target the conversion of molecules into valuable materials. Nevertheless, the aim of past synthesis has primarily focused on achieving a given transformation, regardless of the environmental impact of the synthetic route. Given the current global situation, the demand for sustainable alternatives has substantially increased. Our group focuses on developing selective chemical transformations that benefit from mild conditions, improved atom economy, and that can make use of renewable feedstocks as starting materials. This account summarizes our work over the past two decades specifically regarding the selective removal, conversion, and addition of functional groups that can, later on, be applied at a late stage for the modification of complex molecules.
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Affiliation(s)
- Alejandra Dominguez-Huerta
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| | - Xi-Jie Dai
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| | - Feng Zhou
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| | - Pierre Querard
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| | - Zihang Qiu
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| | - Sosthene Ung
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| | - Wenbo Liu
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| | - Jianbin Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, QC H3A 0B8, Canada
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20
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Zeng H, Wang Z, Li C. Two‐in‐One Strategy for Palladium‐Catalyzed C−H Functionalization in Water. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813391] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Huiying Zeng
- The State Key Laboratory of Applied Organic ChemistryLanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Zemin Wang
- The State Key Laboratory of Applied Organic ChemistryLanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Chao‐Jun Li
- The State Key Laboratory of Applied Organic ChemistryLanzhou University 222 Tianshui Road Lanzhou 730000 P. R. China
- Department of Chemistry and FQRNT Centre for Green Chemistry and CatalysisMcGill University 801 Sherbrooke St. West Montreal Quebec H3A 0B8 Canada
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21
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Cao D, Zeng H, Li CJ. Formal Cross-Coupling of Diaryl Ethers with Ammonia by Dual C(Ar)–O Bond Cleavages. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02214] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dawei Cao
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
| | - Chao-Jun Li
- The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada
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22
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Catalytic N-modification of α-amino acids and small peptides with phenol under bio-compatible conditions. Commun Chem 2018. [DOI: 10.1038/s42004-018-0042-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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23
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Recent advances on controllable and selective catalytic oxidation of cyclohexene. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63050-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Zeng H, Cao D, Qiu Z, Li CJ. Palladium-Catalyzed Formal Cross-Coupling of Diaryl Ethers with Amines: Slicing the 4-O
-5 Linkage in Lignin Models. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712211] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Dawei Cao
- The State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Zihang Qiu
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. West Montreal Quebec H3A 0B8 Canada
| | - Chao-Jun Li
- The State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui Road Lanzhou 730000 P. R. China
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. West Montreal Quebec H3A 0B8 Canada
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25
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Zeng H, Cao D, Qiu Z, Li CJ. Palladium-Catalyzed Formal Cross-Coupling of Diaryl Ethers with Amines: Slicing the 4-O
-5 Linkage in Lignin Models. Angew Chem Int Ed Engl 2018; 57:3752-3757. [PMID: 29384588 DOI: 10.1002/anie.201712211] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/22/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Dawei Cao
- The State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui Road Lanzhou 730000 P. R. China
| | - Zihang Qiu
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. West Montreal Quebec H3A 0B8 Canada
| | - Chao-Jun Li
- The State Key Laboratory of Applied Organic Chemistry; Lanzhou University; 222 Tianshui Road Lanzhou 730000 P. R. China
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis; McGill University; 801 Sherbrooke St. West Montreal Quebec H3A 0B8 Canada
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26
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Fang WY, Huang YM, Leng J, Qin HL. Pd-Catalyzed One-Pot Dehydroxylative Coupling of Phenols and Amines under a Carbon Monoxide Atmosphere: A Chemical-Specific Discrimination for Arylcarboxylic Amide Synthesis. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800037] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wan-Yin Fang
- State Key Laboratory of Silicate Materials for Architectures, and; School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan Hubei Province 430070 P. R. China
| | - Yu-Mei Huang
- State Key Laboratory of Silicate Materials for Architectures, and; School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan Hubei Province 430070 P. R. China
| | - Jing Leng
- State Key Laboratory of Silicate Materials for Architectures, and; School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan Hubei Province 430070 P. R. China
| | - Hua-Li Qin
- State Key Laboratory of Silicate Materials for Architectures, and; School of Chemistry, Chemical Engineering and Life Science; Wuhan University of Technology; 205 Luoshi Road Wuhan Hubei Province 430070 P. R. China
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27
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Zhou Y, Song Q. Oxidative ring-opening of 3-aminoindazoles for the synthesis of 2-aminobenzoates. Org Chem Front 2018. [DOI: 10.1039/c8qo00872h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel oxidative ring-opening of 3-aminoindazoles based on N–N bond cleavage was developed, in which various 2-aminobenzoates were obtained in good yields under mild conditions.
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Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
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