1
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Panda S, Dhara S, Singh A, Dey S, Kumar Lahiri G. Metal-coordinated azoaromatics: Strategies for sequential azo-reduction, isomerization and application potential. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2
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Rational synthesis, biological screening of azo derivatives of chloro-phenylcarbonyl diazenyl hydroxy dipyrimidines/thioxotetrahydropyrimidines and their metal complexes. Heliyon 2022; 9:e12492. [PMID: 36699273 PMCID: PMC9868376 DOI: 10.1016/j.heliyon.2022.e12492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/13/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022] Open
Abstract
Herein, a new series of azo ligands HL-1 (5-(2-chloro-6-(phenylcarbonyl)phenyl)diazenyl)-6-hydroxydihydropyrimidines-2,4dione), HL-2 (5-(2-chloro-6-(phenylcarbonyl)phenyl)diazenyl)-6-hydroxy-2-thioxottetrahydropyrimidin-4one), HL-3 (5-(2,4-dichloro-6-(phenylcarbonyl)phenyl) diazenyl)-6-hydroxydihydropyrimidines-2,4dione), HL-4 (5-(2,4-dichloro-6-(phenylcarbonyl) phenyl)diazenyl)-6-hydroxy-2-thioxotetrahydropyrimidin-4one) and their metal complexes with Cu(II) & Ni(II) were synthesized successfully having excellent yield, in reproducible conditions and for structure elucidation different advance spectroscopic techniques (FTIR, 1H NMR, 13C NMR and Mass Spectrometry) were applied. In FTIR analysis, the absence of peak at 3450-3550 cm -1 due to -NH2 and presence of a new peak of N=N at 1390-1520 cm-1 confirmed synthesis of the ligands. The 1H NMR spectra of azo ligands showed singlet peak at 11.5-13.5 ppm (Ar-OH) for hydroxyl group and -NH2 signals disappearance of anilines at 4-5 ppm also gives strong indication for the synthesis of azo compounds. On complexation two most important peaks (M-O, M-N) appeared in all the metal chelates in the range of 400-600 cm-1 which were not present in any of the ligands, confirmed the formation of complexes. Molecular ion peaks in mass spectra at 273, 388, 407 and 423 m/z value for ligands as well as for complexes at 803, 835, 871 and 904 m/z also give strong indication that proposed ligands and their metal complexes are produced successfully. Biological screening of the synthesized compounds were also carried out against different bacterial strains (E.coli, S.typhi, and B.subtilis), antifungal (C.albicans, A.niger, and C.glabrata) strains and antioxidant activity. From results it was observed that HL-4 and Cu complexes exhibited maximum inhibition against all bacterial and fungal strains as compared to other ligands and standard drug.
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3
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Thakuri A, Banerjee M, Chatterjee A. Protocol for microwave-assisted synthesis of unsymmetrical azo dyes. STAR Protoc 2022; 3:101864. [PMID: 36595940 PMCID: PMC9678771 DOI: 10.1016/j.xpro.2022.101864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/01/2022] [Accepted: 10/25/2022] [Indexed: 11/18/2022] Open
Abstract
Aromatic azo dyes bear immense commercial significance because of their extensive usage in the textile, paint, and food industries. With growing environmental concerns, developing alternative greener approaches for the synthesis of azo dyes is crucial. Herein, we describe a metal-free, microwave (MW)-assisted protocol for rapid access to a large variety of unsymmetrical azo dyes by coupling nitroarenes and aromatic amines. After MW-assisted coupling, the azo dyes are then isolated by precipitation followed by recrystallization to obtain pure azo dyes. For complete details on the use and execution of this protocol, please refer to Thakuri et al. (2022).1.
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Affiliation(s)
- Ankit Thakuri
- Department of Chemistry, BITS-Pilani, K.K. Birla Goa Campus, NH 17B, Bypass Road, Zuarinagar, Sancoale, Goa 403726, India
| | - Mainak Banerjee
- Department of Chemistry, BITS-Pilani, K.K. Birla Goa Campus, NH 17B, Bypass Road, Zuarinagar, Sancoale, Goa 403726, India,Corresponding author
| | - Amrita Chatterjee
- Department of Chemistry, BITS-Pilani, K.K. Birla Goa Campus, NH 17B, Bypass Road, Zuarinagar, Sancoale, Goa 403726, India,Corresponding author
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4
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Giomi D, Ceccarelli J, Salvini A, Pinto M, Brandi A. Organocatalytic Reduction of Aromatic Nitro Compounds: The Use of Solid-Supported Phenyl(2-quinolyl)methanol. ACS OMEGA 2022; 7:35170-35179. [PMID: 36211086 PMCID: PMC9535724 DOI: 10.1021/acsomega.2c04196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
The reduction of aromatic nitro compounds has been performed employing a catalytic amount of Wang resin-supported phenyl(2-quinolyl)methanol (Wang-PQM) in the presence of an excess of NaBH4 to regenerate the reactive reducing species at the end of the process. The reduction products are easily isolated through a simple filtration/extraction protocol, and the catalyst can be efficiently recovered and recycled. The condensation route is generally preferred, and azo- and/or hydrazo-arenes can be easily prepared in high yields.
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Affiliation(s)
- Donatella Giomi
- Dipartimento
di Chimica “Ugo Schiff”, Università
di Firenze, Via della
Lastruccia 3-13, I-50019 Sesto Fiorentino, Italy
| | - Jacopo Ceccarelli
- Dipartimento
di Medicina Sperimentale e Clinica, Università
di Firenze, Largo Brambilla 3, I-50134 Firenze, Italy
| | - Antonella Salvini
- Dipartimento
di Chimica “Ugo Schiff”, Università
di Firenze, Via della
Lastruccia 3-13, I-50019 Sesto Fiorentino, Italy
| | - Marika Pinto
- Dipartimento
di Chimica “Ugo Schiff”, Università
di Firenze, Via della
Lastruccia 3-13, I-50019 Sesto Fiorentino, Italy
| | - Alberto Brandi
- Dipartimento
di Chimica “Ugo Schiff”, Università
di Firenze, Via della
Lastruccia 3-13, I-50019 Sesto Fiorentino, Italy
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5
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Balakrishna B, Mossin S, Kramer S. Photo-induced metal-free dehydrogenative N-N homo-coupling. Chem Commun (Camb) 2022; 58:10977-10980. [PMID: 36093722 DOI: 10.1039/d2cc04204e] [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
We report a photo-induced dehydrogenative N-N coupling of diarylimines, diarylamines, carbazoles, and anilines. These homo-coupling reactions require only the combination of readily available di-tert-butyl peroxide (DTBP) and light irradition. The operationally simple protocol works under catalyst- and metal-free conditions and exhibits a good substrate scope. Preliminary mechanistic studies indicate that the reaction proceeds via photo-induced homolytic cleavage of the peroxide followed by hydrogen atom transfer leading to the formation of N-centered radicals.
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Affiliation(s)
- Bugga Balakrishna
- Department of Chemistry, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark.
| | - Susanne Mossin
- Department of Chemistry, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark.
| | - Søren Kramer
- Department of Chemistry, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark.
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6
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Damiano C, Cavalleri M, Panza N, Gallo E. Cobalt Porphyrin‐Catalysed Synthesis of Azobenzenes by Dehydrogenative Coupling of Anilines. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Caterina Damiano
- University of Milan: Universita degli Studi di Milano Department of Chemistry ITALY
| | - Matteo Cavalleri
- University of Milan: Universita degli Studi di Milano Department of Chemistry ITALY
| | - Nicola Panza
- University of Milan: Universita degli Studi di Milano Department of Chemistry ITALY
| | - Emma Gallo
- Universita degli Studi di Milano Department of Chemistry Via Golgi 19 20133 Milano ITALY
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7
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Waniek SD, Heine C, Zorn D, Lieberth T, Lauck M, Förster C, Heinze K. Dicobaltocenium Amine–Proton, Electron, and H Atom Transfer. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sven D. Waniek
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10−14, D-55128 Mainz, Germany
| | - Christian Heine
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10−14, D-55128 Mainz, Germany
| | - Dimitri Zorn
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10−14, D-55128 Mainz, Germany
| | - Taro Lieberth
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10−14, D-55128 Mainz, Germany
| | - Maximilian Lauck
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10−14, D-55128 Mainz, Germany
| | - Christoph Förster
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10−14, D-55128 Mainz, Germany
| | - Katja Heinze
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10−14, D-55128 Mainz, Germany
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8
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Fan S, Lam Y, He L, Xin J. Synthesis and photochromism of catechol-containing symmetrical azobenzene compounds. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211894. [PMID: 35706672 PMCID: PMC9174713 DOI: 10.1098/rsos.211894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 05/09/2022] [Indexed: 05/03/2023]
Abstract
Symmetrical azobenzene derivatives with two catechol groups, 1d-4d, were synthesized as kinds of novel compounds, and the structures were confirmed using mass spectrometry and nuclear magnetic resonance spectroscopy. These compounds could attain photostationary state rapidly in solution upon UV irradiation, and their photochromism had good reversibility. Substituents and their positions on azobenzene chromophore had obvious influence on the maximum absorption and photochromic performances of these as-synthesized compounds. Electron-donating group on ortho positions could contribute to the redshift π-π* band. The sulfonamide group that is bonded to dopamine molecules and azobenzene rings caused a negligible n-π* transition of cis isomer, resulting in photobleaching upon UV irradiation. Among the four compounds, 4d had the strongest electron-donating ortho-methoxy substituents and lower planarity; thus its absorption could decrease more significantly upon UV irradiation of the same intensity, and its cis-to-trans conversion could be up to 63%. Furthermore, owing to the presence of catechol groups, 4d showed an effective affinity and adhesion to substrate, and on the surface of substrate, a weak colour change could be observed upon UV irradiation, but the reversibility was poorer than that in solution.
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Affiliation(s)
- Suju Fan
- Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, Hong Kong
| | - Yintung Lam
- Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, Hong Kong
| | - Liang He
- Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, Hong Kong
| | - John H. Xin
- Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, Hong Kong
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9
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Microwave Assisted Rapid and Sustainable Synthesis of Unsymmetrical Azo Dyes by Coupling of Nitroarenes with Aniline Derivatives. iScience 2022; 25:104497. [PMID: 35721466 PMCID: PMC9198429 DOI: 10.1016/j.isci.2022.104497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/26/2022] [Accepted: 05/25/2022] [Indexed: 11/21/2022] Open
Abstract
Aromatic azo dyes are of immense commercial importance, and the development of greener routes for their synthesis is imperative due to current environmental concerns. In the present study, a microwave-assisted route has been developed for rapid and convenient synthesis of unsymmetrical azo dyes in a single step. In a metal-catalyst-free approach, an aromatic amine was used as an in situ reductant to affect its direct cross-condensation with nitroarenes to afford a variety of dispersed and water-soluble azo dyes. The electronic and substituent effects were thoroughly understood by placing suitable substituents in both nitroarenes and aniline derivatives in competitive reactions. The microwave (MW) method worked better with aniline or electron-rich aromatic amines to prepare a range of unsymmetrical azo dyes in up to 97% yields within a few minutes. The method worked well in the gram-scale synthesis of commercial dye, solvent yellow 7. Microwave-based green synthesis of unsymmetrical azo dyes Catalyst-free, rapid synthesis Gram-scale synthesis of commercial dyes Efficient synthesis of water-soluble dyes
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10
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Fan S, Lam Y, He L, Xin JH. Novel and Sustainable Colorants Developed via Incorporating Azo Chromophores into Dopamine Molecules. ACS OMEGA 2022; 7:11082-11091. [PMID: 35415376 PMCID: PMC8991931 DOI: 10.1021/acsomega.1c07084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Inspired by the application of dopamine as an "anchor" and UV absorber, novel sustainable colorants with biscatecholic structure were synthesized through a simple incorporation of simple azo chromophores with dopamine. Their structures were confirmed using MS and NMR analyses, and their application on textile materials was investigated. Compared to the simple azo chromophores with almost no coloring ability on fabrics, the biscatecholic colorants could color different fabrics effectively, mainly through self-polymerization only in the presence of a trace amount of organic base at room temperature, which is environmentally friendly in terms of saving resources and alleviating chemical pollution. Meanwhile, the UV resistance of colored fabrics was enhanced significantly, showing the advantage of protecting wearers from UV damage.
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Affiliation(s)
- Suju Fan
- Institute
of Textiles & Clothing, The Hong Kong
Polytechnic University, Hong Kong, China
- Shenzhen
Research Institute, The Hong Kong Polytechnic
University, Shenzhen, China
| | - Yintung Lam
- Institute
of Textiles & Clothing, The Hong Kong
Polytechnic University, Hong Kong, China
- Shenzhen
Research Institute, The Hong Kong Polytechnic
University, Shenzhen, China
| | - Liang He
- Institute
of Textiles & Clothing, The Hong Kong
Polytechnic University, Hong Kong, China
- Shenzhen
Research Institute, The Hong Kong Polytechnic
University, Shenzhen, China
| | - John H. Xin
- Institute
of Textiles & Clothing, The Hong Kong
Polytechnic University, Hong Kong, China
- Shenzhen
Research Institute, The Hong Kong Polytechnic
University, Shenzhen, China
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11
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Zhao W, Xu J, Yang F, Zeng X. Advances on the Synthesis of N—N Bonds. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202111019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Taha I, Keshk EM, Khalil AGM, Fekri A. Benzocaine as a precursor of promising derivatives: synthesis, reactions, and biological activity. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01808-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Li J, Wang X, Wang Z, Shi Y. A Cu-Promoted C-N Coupling of Boron Esters and Diaziridinone: An Approach to Aryl Ureas. Org Lett 2021; 23:8958-8962. [PMID: 34756047 DOI: 10.1021/acs.orglett.1c03468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel Cu-promoted C-N coupling between boron esters and di-tert-butyldiaziridinone is described. A wide variety of aryl ureas can be readily obtained under mild conditions with up to a 92% yield.
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Affiliation(s)
- Jing Li
- Institute of Natural and Synthetic Organic Chemistry, Changzhou University, Changzhou 213164, China
| | - Xiaoyu Wang
- Institute of Natural and Synthetic Organic Chemistry, Changzhou University, Changzhou 213164, China
| | - Zhanwei Wang
- Institute of Natural and Synthetic Organic Chemistry, Changzhou University, Changzhou 213164, China
| | - Yian Shi
- Institute of Natural and Synthetic Organic Chemistry, Changzhou University, Changzhou 213164, China
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14
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Nasier A, Chang X, Guo C. Electrodimerization of N-Alkoxyamides for the Synthesis of Hydrazines. J Org Chem 2021; 86:16068-16076. [PMID: 34464121 DOI: 10.1021/acs.joc.1c01294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient and valuable N-N dimerization reaction of N-alkoxyamides is reported under undivided electrolytic conditions. This electrochemical strategy provides a powerful way to access a wide range of advanced, highly functionalized hydrazines. Remarkably, an N-centered radical generated from the cleavage of the N-H bond under electrolytic conditions plays a crucial role in this transformation. Furthermore, various N-alkoxyamides bearing different substituents are suitable in this transformation, furnishing the corresponding hydrazines in up to 92% yield.
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Affiliation(s)
- Abudulajiang Nasier
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Xihao Chang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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15
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Tabey A, Vemuri PY, Patureau FW. Cross-dehydrogenative N-N couplings. Chem Sci 2021; 12:14343-14352. [PMID: 34880984 PMCID: PMC8580018 DOI: 10.1039/d1sc03851f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/10/2021] [Indexed: 11/21/2022] Open
Abstract
The relatively high electronegativity of nitrogen makes N-N bond forming cross-coupling reactions particularly difficult, especially in an intermolecular fashion. The challenge increases even further when considering the case of dehydrogenative N-N coupling reactions, which are advantageous in terms of step and atom economy, but introduce the problem of the oxidant in order to become thermodynamically feasible. Indeed, the oxidizing system must be designed to activate the target N-H bonds, while at the same time avoid undesired N-N homocoupling as well as C-N and C-C coupled side products. Thus, preciously few intermolecular hetero N-N cross-dehydrogenative couplings exist, in spite of the central importance of N-N bonds in organic chemistry. This review aims at analyzing these few rare cases and provides a perspective for future developments.
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Affiliation(s)
- Alexis Tabey
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Pooja Y Vemuri
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Frederic W Patureau
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 52074 Aachen Germany
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16
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Ma Y, Wu S, Jiang S, Xiao F, Deng G. Electrosynthesis of Azobenzenes Directly from Nitrobenzenes. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100470] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yanfeng Ma
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
| | - Shanghui Wu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
| | - Shuxin Jiang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
| | - Fuhong Xiao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
| | - Guo‐Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates (South China University of Technology), Guangzhou Guangdong 510640 China
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17
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Du Z, Qi Q, Gao W, Ma L, Liu Z, Wang R, Chen J. Electrochemical Heteroatom-Heteroatom Bond Construction. CHEM REC 2021; 22:e202100178. [PMID: 34463430 DOI: 10.1002/tcr.202100178] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 01/30/2023]
Abstract
Heteroatom-heteroatom linkage, with S-S bond as a presentative motif, served a crucial role in biochemicals, pharmaceuticals, pesticides, and material sciences. Thus, preparation of the privileged scaffold has always been attracting tremendous attention from the synthetic community. However, classic protocols suffered from several drawbacks, such as toxic and unstable agents, poor functional group tolerance, multiple steps, and explosive oxidizing regents as well as the transitional metal catalysts. Electrochemical organic synthesis exhibited a promising alternative to the traditional chemical reaction due to the sustainable electricity can be employed as the traceless redox agents. Hence, toxic and explosive oxidants and/or transitional metals could be discarded under mild reaction with high efficiency. In this context, a series of electrochemical approaches for the construction of heteroatom-heteroatom bond were reviewed. Notably, most of the cases illustrated the dehydrogenative feature with the clean energy molecules hydrogen as the sole by-product.
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Affiliation(s)
- Zhiying Du
- Shandong Provincial Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Qiqi Qi
- Shandong Provincial Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Wei Gao
- Shandong Provincial Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China.,Archives of Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Li Ma
- Shandong Provincial Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Zhenxian Liu
- Intellectual Property Operations Management Office, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Ruiming Wang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
| | - Jianbin Chen
- Shandong Provincial Key Laboratory of Molecular Engineering, State Key Laboratory of Biobased Material and Green Papermaking, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China.,Intellectual Property Operations Management Office, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China
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18
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Martin JS, Zeng X, Chen X, Miller C, Han C, Lin Y, Yamamoto N, Wang X, Yazdi S, Yan Y, Beard MC, Yan Y. A Nanocrystal Catalyst Incorporating a Surface Bound Transition Metal to Induce Photocatalytic Sequential Electron Transfer Events. J Am Chem Soc 2021; 143:11361-11369. [PMID: 34286970 DOI: 10.1021/jacs.1c00503] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Heterogeneous photocatalysis is less common but can provide unique avenues for inducing novel chemical transformations and can also be utilized for energy transductions, i.e., the energy in the photons can be captured in chemical bonds. Here, we developed a novel heterogeneous photocatalytic system that employs a lead-halide perovskite nanocrystal (NC) to capture photons and direct photogenerated holes to a surface bound transition metal Cu-site, resulting in a N-N heterocyclization reaction. The reaction starts from surface coordinated diamine substrates and requires two subsequent photo-oxidation events per reaction cycle. We establish a photocatalytic pathway that incorporates sequential inner sphere electron transfer events, photons absorbed by the NC generate holes that are sequentially funneled to the Cu-surface site to perform the reaction. The photocatalyst is readily prepared via a controlled cation-exchange reaction and provides new opportunities in photodriven heterogeneous catalysis.
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Affiliation(s)
- Jovan San Martin
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182, United States
| | - Xianghua Zeng
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182, United States.,College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Xihan Chen
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Collin Miller
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182, United States
| | - Chuang Han
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182, United States
| | - Yixiong Lin
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182, United States
| | - Nobuyuki Yamamoto
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182, United States
| | - Xiaoming Wang
- Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization (PVIC), University of Toledo, Toledo, Ohio 43606, United States
| | - Sadegh Yazdi
- Renewable & Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Yanfa Yan
- Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization (PVIC), University of Toledo, Toledo, Ohio 43606, United States
| | - Matthew C Beard
- National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Yong Yan
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182, United States
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19
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Rowshanpour R, Dudding T. Azo synthesis meets molecular iodine catalysis. RSC Adv 2021; 11:7251-7256. [PMID: 35423266 PMCID: PMC8695051 DOI: 10.1039/d1ra00369k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 02/02/2021] [Indexed: 01/06/2023] Open
Abstract
A metal-free synthetic protocol for azo compound formation by the direct oxidation of hydrazine HN-NH bonds to azo group functionality catalyzed by molecular iodine is disclosed. The strengths of this reactivity include rapid reaction times, low catalyst loadings, use of ambient dioxygen as a stoichiometric oxidant, and ease of experimental set-up and azo product isolation. Mechanistic studies and density functional theory computations offering insight into this reactivity, as well as the events leading to azo group formation are presented. Collectively, this study expands the potential of main-group element iodine as an inexpensive catalyst, while delivering a useful transformation for forming azo compounds.
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Affiliation(s)
- Rozhin Rowshanpour
- Brock University 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
| | - Travis Dudding
- Brock University 1812 Sir Isaac Brock Way St. Catharines Ontario L2S 3A1 Canada
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20
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Patel A, Patel G, Maity G, Patel SP, Bhattacharya S, Putta A, Banerjee S. Direct Oxidative Azo Coupling of Anilines Using a Self-Assembled Flower-like CuCo 2O 4 Material as a Catalyst under Aerobic Conditions. ACS OMEGA 2020; 5:30416-30424. [PMID: 33283089 PMCID: PMC7711686 DOI: 10.1021/acsomega.0c03562] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 10/06/2020] [Indexed: 06/12/2023]
Abstract
Herein, we report the synthesis of a self-assembled flower-like CuCo2O4 material by the oxalate decomposition method. The crystalline structure and morphology of the material have been analyzed by powder X-ray diffraction, Raman spectroscopy, field-emission scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray measurement techniques. The self-assembled flower-like CuCo2O4 material showed remarkable catalytic activity in the direct aerobic oxidative azo coupling of anilines under oxidant and other additive-free reaction conditions. The mechanistic insight of CuCo2O4 in the oxidative azo coupling reaction has been established by density functional theory calculations, which disclosed that the absorption and dissociation of areal oxygen preferentially take place at the Cu site and dissociation of aniline takes place at the Co site. Thus, the Cu and Co sites of CuCo2O4 exert a cooperative effect on the direct oxidative azo coupling reactions through the selective activation of anilines and aerobic oxygen. The CuCo2O4 material was recovered from the reaction mixture and reused for at least eight runs without appreciable loss of catalytic activity.
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Affiliation(s)
- Ashok
Raj Patel
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur, C.G. 495009, India
| | - Geetika Patel
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur, C.G. 495009, India
| | - Gurupada Maity
- Department of Pure
and Applied Physics, Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur, C.G. 495009, India
| | - Shiv P. Patel
- Department of Pure
and Applied Physics, Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur, C.G. 495009, India
| | - Sumantra Bhattacharya
- Department
of Chemistry, National Institute of Technology
Sikkim, Barfung Block, Ravangla, Sikkim 737139, India
| | - Anjaneyulu Putta
- Department of Chemistry, The University
of South Dakota, 414 E. Clark, Vermillion, South Dakota 57069, United States
| | - Subhash Banerjee
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur, C.G. 495009, India
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21
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Wang ZQ, Yu JX, Bai SQ, Liu B, Wang CY, Li JH. Oxidative Dehydrogenation of Hydrazobenzenes toward Azo Compounds Catalyzed by tert-Butyl Nitrite in EtOH. ACS OMEGA 2020; 5:28856-28862. [PMID: 33195938 PMCID: PMC7659151 DOI: 10.1021/acsomega.0c04348] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 10/07/2020] [Indexed: 05/02/2023]
Abstract
We describe a tert-butyl nitrite-catalyzed oxidative dehydrogenation of hydrazobenzenes for producing azobenzenes. This method proceeds at ambient temperature and under an atmospheric environment by employing eco-friendly EtOH as the medium, representing a mild, general route to the synthesis of various symmetrical and nonsymmetrical azobenzenes in excellent yields with broad functional group tolerance.
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Affiliation(s)
- Zhi-Qiang Wang
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Jiang-Xi Yu
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Shan-Qin Bai
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Bang Liu
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Cheng-Yong Wang
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
| | - Jin-Heng Li
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Key Laboratory of Functional Organometallic Materials, University
of Hunan Province, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, China
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key
Laboratory of Jiangxi Province for Persistent Pollutants Control and
Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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22
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Pariyar GC, Kundu T, Mitra B, Mukherjee S, Ghosh P. Ethyl lactate: An Efficient Green Mediator for Transition Metal Free Synthesis of Symmetric and Unsymmetric Azobenzenes. ChemistrySelect 2020. [DOI: 10.1002/slct.202002629] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Gyan Chandra Pariyar
- Department of Food TechnologyUniversity of North Bengal Dist. Darjeeling West Bengal India
| | - Tandra Kundu
- Department of ChemistryUniversity of North Bengal Dist. Darjeeling West Bengal India 2776381
| | - Bijeta Mitra
- Department of ChemistryUniversity of North Bengal Dist. Darjeeling West Bengal India 2776381
| | - Suvodip Mukherjee
- Department of ChemistryUniversity of North Bengal Dist. Darjeeling West Bengal India 2776381
| | - Pranab Ghosh
- Department of ChemistryUniversity of North Bengal Dist. Darjeeling West Bengal India 2776381
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23
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Kim J, Oh K. Copper‐Catalyzed Aerobic Oxidation of Amines to Benzothiazoles via Cross Coupling of Amines and Arene Thiolation Sequence. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000598] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Jihyeon Kim
- Center for Metareceptome Research, Graduate School of Pharmaceutical SciencesChung-Ang University, 84 Heukseok-ro, Dongjak Seoul 06974, Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, Graduate School of Pharmaceutical SciencesChung-Ang University, 84 Heukseok-ro, Dongjak Seoul 06974, Republic of Korea
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24
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Lv S, Han X, Wang JY, Zhou M, Wu Y, Ma L, Niu L, Gao W, Zhou J, Hu W, Cui Y, Chen J. Tunable Electrochemical C-N versus N-N Bond Formation of Nitrogen-Centered Radicals Enabled by Dehydrogenative Dearomatization: Biological Applications. Angew Chem Int Ed Engl 2020; 59:11583-11590. [PMID: 32203637 DOI: 10.1002/anie.202001510] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/08/2020] [Indexed: 12/27/2022]
Abstract
Herein, an environmentally friendly electrochemical approach is reported that takes advantage of the captodative effect and delocalization effect to generate nitrogen-centered radicals (NCRs). By changing the reaction parameters of the electrode material and feedstock solubility, dearomatization enabled a selective dehydrogenative C-N versus N-N bond formation reaction. Hence, pyrido[1,2-a]benzimidazole and tetraarylhydrazine frameworks were prepared through a sustainable transition-metal- and exogenous oxidant-free strategy with broad generality. Bioactivity assays demonstrated that pyrido[1,2-a]benzimidazoles displayed antimicrobial activity and cytotoxicity against human cancer cells. Compound 21 exhibited good photochemical properties with a large Stokes shift (approximately 130 nm) and was successfully applied to subcellular imaging. A preliminary mechanism investigation and density functional theory (DFT) calculations revealed the possible reaction pathway.
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Affiliation(s)
- Shide Lv
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Xiaoxin Han
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Jian-Yong Wang
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Mingyang Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Yanwei Wu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Li Ma
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Liwei Niu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Wei Gao
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Jianhua Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Wei Hu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Yuezhi Cui
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
| | - Jianbin Chen
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, P. R. China
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25
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Lv S, Han X, Wang J, Zhou M, Wu Y, Ma L, Niu L, Gao W, Zhou J, Hu W, Cui Y, Chen J. Tunable Electrochemical C−N versus N−N Bond Formation of Nitrogen‐Centered Radicals Enabled by Dehydrogenative Dearomatization: Biological Applications. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001510] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Shide Lv
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Xiaoxin Han
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Jian‐Yong Wang
- School of Light Industry and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Mingyang Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Yanwei Wu
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Li Ma
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Liwei Niu
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Wei Gao
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Jianhua Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Wei Hu
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Yuezhi Cui
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Jianbin Chen
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Pharmaceutical Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
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26
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Jo G, Kim MH, Kim J. A practical route to azo compounds by metal-free aerobic oxidation of arylhydrazides using an NO x system. Org Chem Front 2020. [DOI: 10.1039/d0qo00043d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Metal-free aerobic oxidation of aryl hydrazides catalyzed by NOx was developed for the practical and environment friendly synthesis of azo compounds.
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Affiliation(s)
- Giwon Jo
- Department of Chemistry
- and Research Institute of Basic Sciences
- Incheon National University
- Incheon 22012
- Republic of Korea
| | - Min Hye Kim
- Department of Chemistry
- and Research Institute of Basic Sciences
- Incheon National University
- Incheon 22012
- Republic of Korea
| | - Jinho Kim
- Department of Chemistry
- and Research Institute of Basic Sciences
- Incheon National University
- Incheon 22012
- Republic of Korea
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27
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Patel A, Patel G, Banerjee S. Visible Light-Emitting Diode Light-Driven Cu 0.9Fe 0.1@RCAC-Catalyzed Highly Selective Aerobic Oxidation of Alcohols and Oxidative Azo-Coupling of Anilines: Tandem One Pot Oxidation-Condensation to Imidazoles and Imines. ACS OMEGA 2019; 4:22445-22455. [PMID: 31909327 PMCID: PMC6941188 DOI: 10.1021/acsomega.9b03096] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Here, we have demonstrated visible light-emitting diode light-driven selective and efficient aerobic oxidation of primary/secondary alcohols to aldehydes/ketones and oxidative azo-coupling of anilines using biomass rice husk-derived chemically activated carbon sheet-supported copper-iron bimetallic hybrid nanomaterials (Cu x Fe1-x @RCAC) under oxidant and additive-free conditions. The catalytic activity of the Cu x Fe1-x @RCAC materials has been investigated for the oxidation of alcohols and anilines, and Cu0.9Fe0.1@RCAC was established as the best catalyst. Moreover, a tandem one-pot protocol has been developed for the sequential oxidation of alcohols followed by condensation to functionalized imidazole and imine derivatives in high isolated yields. The hybrid materials were highly robust and stable under the reaction conditions and were recovered simply by filtration and recycled up to 12th run without considerable loss in catalytic activity.
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28
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Chauvier C, Finck L, Hecht S, Oestreich M. General Synthesis and Optical Properties of N-Aryl-N′-Silyldiazenes. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00654] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Clément Chauvier
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Lucie Finck
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
| | - Stefan Hecht
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623 Berlin, Germany
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29
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Mukherjee D, Bhattacharya S, Taylor KE, Biswas N. Enzymatic treatment for removal of hazardous aqueous arylamines, 4,4'-methylenedianiline and 4,4'-thiodianiline. CHEMOSPHERE 2019; 235:365-372. [PMID: 31265982 DOI: 10.1016/j.chemosphere.2019.06.182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 06/09/2023]
Abstract
The search for an effective and sustainable treatment method to remove the recalcitrant atom-bridged bis-anilino compounds, 4,4'-methylenedianiline (MDA) and 4,4'-thiodianiline (TDA) from water is a major challenge and focus of this study. The escalating discharge of these two toxic and carcinogenic pollutants from industrial sources may pose a serious threat to the environment. Crude soybean peroxidase (SBP), isolated from soybean seed hulls (coats), catalyzes the oxidative polymerization of these aqueous pollutants in the presence of hydrogen peroxide. The effects of several process parameters, i.e., pH, hydrogen peroxide-to-substrate concentration ratio and SBP concentration, were investigated to optimize the performance of enzymatic treatment. The minimum effective SBP concentration required for removal of MDA was 0.70 U/mL, which was higher than that of TDA (0.15 U/mL). The reaction time course to achieve ≥95% removal of these compounds from water was determined under those optimum conditions. Identification of the transformed products was performed by means of high-resolution electrospray ionization mass spectrometry. The products generally observed were protonated oxidized oxidative dimers and higher oligomers (most commonly azo-coupled products). Michaelis constant, KM, and maximum reaction velocity, Vmax, obtained from the Michaelis-Menten (M-M) model revealed that TDA had a 65-fold lower KM than MDA (indicating TDA's higher affinity for SBP), and almost 5-fold higher Vmax than MDA. A pro-forma cost analysis is presented to assess the possibility of commercialization of enzymatic treatment as an alternative to conventional/traditional treatment methods.
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Affiliation(s)
| | | | - Keith E Taylor
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON, Canada N9B 3P4.
| | - Nihar Biswas
- Department of Civil and Environmental Engineering, Canada
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30
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Yin D, Jin J. Transition-Metal-Free Dehydrogenative N-N Coupling of Secondary Amines with KI/KIO4. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900763] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Dehang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
| | - Jian Jin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Lingling Road 200032 Shanghai China
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31
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Han W, Yang Y, Zhu Y, Shi Y. A facile copper(i)-catalyzed homo-coupling of indanone derivatives using diaziridinone under mild conditions. Org Biomol Chem 2019; 17:6998-7001. [PMID: 31304944 DOI: 10.1039/c9ob00901a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and efficient Cu(i)-catalyzed homo-coupling of indanone derivatives using diaziridinone as an oxidant is described. A variety of 1,4-dicarbonyl compounds bearing two adjacent quaternary stereocenters were obtained in high yields with high diastereoselectivities via a base-free and operationally simple process under mild reaction conditions.
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Affiliation(s)
- Wenyong Han
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
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32
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Dai Q, Zhao B, Yang Y, Shi Y. Pd-Catalyzed Oxidative Heck Reaction of Grignard Reagents with Diaziridinone as Oxidant. Org Lett 2019; 21:5157-5161. [PMID: 31247760 DOI: 10.1021/acs.orglett.9b01762] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A novel Pd-catalyzed oxidative Heck reaction with readily available Grignard reagents using di- t-butyldiaziridinone as an oxidant has been developed. Various substituted olefins were obtained in 46-91% yields with high regioselectivity under mild reaction conditions.
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Affiliation(s)
- Qipu Dai
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States
| | - Baoguo Zhao
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States
| | - Yihui Yang
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States
| | - Yian Shi
- Department of Chemistry , Colorado State University , Fort Collins , Colorado 80523 , United States
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33
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Penteado F, Lopes EF, Alves D, Perin G, Jacob RG, Lenardão EJ. α-Keto Acids: Acylating Agents in Organic Synthesis. Chem Rev 2019; 119:7113-7278. [DOI: 10.1021/acs.chemrev.8b00782] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Filipe Penteado
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eric F. Lopes
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
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34
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Ren L, Wang M, Fang B, Yu W, Chang J. Iodine-mediated oxidative N-N coupling of secondary amines to hydrazines. Org Biomol Chem 2019; 17:3446-3450. [PMID: 30882831 DOI: 10.1039/c9ob00279k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An I2-mediated N-N coupling reaction has been established for oxidative dimerization of N-aryl aminopyridines to a variety of novel hydrazine derivatives under mild conditions. This synthetic method does not require use of transition metals and can be conveniently carried out on a gram scale. It is also applicable to diphenylamine and N-alkyl aniline substrates.
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Affiliation(s)
- Linning Ren
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China.
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35
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Kianmehr E, Nasab SB. Ruthenium-Catalyzed Regioselective Direct Ortho
-Acyloxylation of Azoarenes with Carboxylic Acids via C-H Bond Activation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801545] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ebrahim Kianmehr
- School of Chemistry; College of Science; University of Tehran; Tehran Iran
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36
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Schehr M, Hugenbusch D, Moje T, Näther C, Herges R. Synthesis of mono-functionalized S-diazocines via intramolecular Baeyer-Mills reactions. Beilstein J Org Chem 2018; 14:2799-2804. [PMID: 30498529 PMCID: PMC6244113 DOI: 10.3762/bjoc.14.257] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/29/2018] [Indexed: 12/13/2022] Open
Abstract
Herein we report a reliable method to synthesize mono-functionalized S-diazocines in reproducible yields via intramolecular Baeyer-Mills reactions. Diazocines exhibit excellent photoswitchable properties. As opposed to azobenzenes they are more stable in their cis configuration. Particularly in photopharmacology mono-functionalized diazocines should be potentially useful and superior to the frequently used azobenzenes because the sterically more demanding cis configuration should be inactive, and the slender trans configuration should fit in a tight binding pocket of a receptor. Hence, it should be possible to administer the stabile inactive compound and switch it on at the site of illness with visible light. To date only a limited number of diazocine derivatives have been published of which most are symmetrically functionalized. Using the Baeyer-Mills reaction for the synthesis of diazocines opens a novel and convenient access to unsymmetrically substituted diazocines.
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Affiliation(s)
- Miriam Schehr
- Otto Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Daniel Hugenbusch
- Otto Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Tobias Moje
- Otto Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | - Christian Näther
- Institute for Inorganic Chemistry, Christian-Albrechts-University, Max-Eyth-Str. 2, 24118 Kiel, Germany
| | - Rainer Herges
- Otto Diels-Institute for Organic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 4, 24118 Kiel, Germany
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37
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Sarkar S, Sarkar P, Ghosh P. Selective Single-Step Oxidation of Amine to Cross-Azo Compounds with an Unhampered Primary Benzyl Alcohol Functionality. Org Lett 2018; 20:6725-6729. [PMID: 30350675 DOI: 10.1021/acs.orglett.8b02829] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This is the first report of a single-step synthesis of primary benzyl alcohol containing different cross-azo compounds (14 examples) by Cu(II) in the presence of a newly synthesized amino-ether heteroditopic macrobicycle cage. Interestingly, even with extreme conditions, the benzyl alcohol remains unoxidized by the Cu(II) catalyst due to the protective etherial pocket of the cage.
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Affiliation(s)
- Sayan Sarkar
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S.C. Mullick Road , Kolkata 700032 , India
| | - Piyali Sarkar
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S.C. Mullick Road , Kolkata 700032 , India
| | - Pradyut Ghosh
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S.C. Mullick Road , Kolkata 700032 , India
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38
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de Souza GF, von Zuben TW, Salles AG. A metal-catalyst-free oxidative coupling of anilines to aromatic azo compounds in water using bleach. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.08.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Conversion of anilines into azobenzenes in acetic acid with perborate and Mo(VI): correlation of reactivities. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0599-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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40
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Ryan MC, Martinelli JR, Stahl SS. Cu-Catalyzed Aerobic Oxidative N-N Coupling of Carbazoles and Diarylamines Including Selective Cross-Coupling. J Am Chem Soc 2018; 140:9074-9077. [PMID: 29989813 PMCID: PMC6794001 DOI: 10.1021/jacs.8b05245] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Cu-catalyzed method has been identified for aerobic oxidative dimerization of carbazoles and diarylamines to the corresponding N-N coupled bicarbazoles and tetraarylhydrazines. The reactions proceed under mild conditions (1 atm O2, 60-80 °C) with a catalyst composed of CuBr·dimethylsulfide and N, N-dimethylaminopyridine. Reactions between carbazole and diarylamines show unusually selective cross-coupling, even with a 1:1 ratio of the two substrates. This behavior was found to arise from reversible formation of the tetraarylhydrazine. Formation of this species is kinetically favored, but cleavage of the N-N bond under the reaction conditions leads to selective formation of the thermodynamically favored cross-coupling product.
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Affiliation(s)
- Michael C. Ryan
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Joseph R. Martinelli
- Small Molecule Design and Development, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - Shannon S. Stahl
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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41
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Barak DS, Dighe SU, Avasthi I, Batra S. Iodine-Catalyzed Diazenylation with Arylhydrazine Hydrochlorides in Air. J Org Chem 2018; 83:3537-3546. [DOI: 10.1021/acs.joc.7b03149] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dinesh S. Barak
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India
| | - Shashikant U. Dighe
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India
| | - Ilesha Avasthi
- Department of Chemistry, Indian Institute of Technology Kanpur, Kalyanpur, Kanpur 228016, India
| | - Sanjay Batra
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India
- Academy of Scientific and Innovative Research, New Delhi, 110025, India
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42
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Nozawa-Kumada K, Abe E, Ito S, Shigeno M, Kondo Y. Super electron donor-mediated reductive transformation of nitrobenzenes: a novel strategy to synthesize azobenzenes and phenazines. Org Biomol Chem 2018; 16:3095-3098. [DOI: 10.1039/c8ob00271a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transformation of nitrobenzenes into azobenzenes by pyridine-derived super electron donor 2 is described.
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Affiliation(s)
| | - Erina Abe
- Graduate School of Pharmaceutical Sciences
- Tohoku University
- Sendai 980-8578
- Japan
| | - Shungo Ito
- Graduate School of Pharmaceutical Sciences
- Tohoku University
- Sendai 980-8578
- Japan
| | - Masanori Shigeno
- Graduate School of Pharmaceutical Sciences
- Tohoku University
- Sendai 980-8578
- Japan
| | - Yoshinori Kondo
- Graduate School of Pharmaceutical Sciences
- Tohoku University
- Sendai 980-8578
- Japan
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43
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Ötvös SB, Georgiádes Á, Mészáros R, Kis K, Pálinkó I, Fülöp F. Continuous-flow oxidative homocouplings without auxiliary substances: Exploiting a solid base catalyst. J Catal 2017. [DOI: 10.1016/j.jcat.2017.02.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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44
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Wang L, Ishida A, Hashidoko Y, Hashimoto M. Dehydrogenation of the NH−NH Bond Triggered by Potassium
tert
‐Butoxide in Liquid Ammonia. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Lei Wang
- Division of Applied Bioscience Graduate School of Agriculture Hokkaido University Kita 9, Nishi 9, Kita-ku Sapporo 060-8589 Japan
| | - Akiko Ishida
- Division of Applied Bioscience Graduate School of Agriculture Hokkaido University Kita 9, Nishi 9, Kita-ku Sapporo 060-8589 Japan
| | - Yasuyuki Hashidoko
- Division of Applied Bioscience Graduate School of Agriculture Hokkaido University Kita 9, Nishi 9, Kita-ku Sapporo 060-8589 Japan
| | - Makoto Hashimoto
- Division of Applied Bioscience Graduate School of Agriculture Hokkaido University Kita 9, Nishi 9, Kita-ku Sapporo 060-8589 Japan
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45
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Wang L, Ishida A, Hashidoko Y, Hashimoto M. Dehydrogenation of the NH-NH Bond Triggered by Potassium tert-Butoxide in Liquid Ammonia. Angew Chem Int Ed Engl 2016; 56:870-873. [PMID: 27936299 DOI: 10.1002/anie.201610371] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Indexed: 12/24/2022]
Abstract
A novel strategy for the dehydrogenation of the NH-NH bond is disclosed using potassium tert-butoxide (tBuOK) in liquid ammonia (NH3 ) under air at room temperature. Its synthetic value is well demonstrated by the highly efficient synthesis of aromatic azo compounds (up to 100 % yield, 3 min), heterocyclic azo compounds, and dehydrazination of phenylhydrazine. The broad application of this strategy and its benefit to chemical biology is proved by a novel, convenient, one-pot synthesis of aliphatic diazirines, which are important photoreactive agents for photoaffinity labeling.
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Affiliation(s)
- Lei Wang
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, 060-8589, Japan
| | - Akiko Ishida
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, 060-8589, Japan
| | - Yasuyuki Hashidoko
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, 060-8589, Japan
| | - Makoto Hashimoto
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, 060-8589, Japan
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46
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Fritsche RF, Theumer G, Kataeva O, Knölker HJ. Iron-Catalyzed Oxidative C−C and N−N Coupling of Diarylamines and Synthesis of Spiroacridines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610168] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Raphael F. Fritsche
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
| | - Gabriele Theumer
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
| | - Olga Kataeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry; Russian Academy of Sciences; Arbuzov Str. 8 Kazan 420088 Russia
| | - Hans-Joachim Knölker
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
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47
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Fritsche RF, Theumer G, Kataeva O, Knölker HJ. Iron-Catalyzed Oxidative C−C and N−N Coupling of Diarylamines and Synthesis of Spiroacridines. Angew Chem Int Ed Engl 2016; 56:549-553. [DOI: 10.1002/anie.201610168] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Raphael F. Fritsche
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
| | - Gabriele Theumer
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
| | - Olga Kataeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry; Russian Academy of Sciences; Arbuzov Str. 8 Kazan 420088 Russia
| | - Hans-Joachim Knölker
- Department Chemie; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
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48
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Cao D, Zhang Y, Liu C, Wang B, Sun Y, Abdukadera A, Hu H, Liu Q. Ionic Liquid Promoted Diazenylation of N-Heterocyclic Compounds with Aryltriazenes under Mild Conditions. Org Lett 2016; 18:2000-3. [PMID: 27096379 DOI: 10.1021/acs.orglett.6b00605] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient, mild, and metal-free approach to direct diazenylation of N-heterocyclic compounds with aryltriazenes using Brønsted ionic liquid as a promoter has been developed for the first time. Many N-heterocyclic azo compounds were synthesized in good to excellent yields at room temperature under an open atmosphere. Notably, the promoter 1,3-bis(4-sulfobutyl)-1H-imidazol-3-ium hydrogen sulfate could be conveniently recycled and reused with the same efficacies for at least four cycles.
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Affiliation(s)
- Dawei Cao
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Physics and Chemistry Detecting Center, Xinjiang University , Urumqi 830046, P. R. China
| | - Yonghong Zhang
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Physics and Chemistry Detecting Center, Xinjiang University , Urumqi 830046, P. R. China
| | - Chenjiang Liu
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Physics and Chemistry Detecting Center, Xinjiang University , Urumqi 830046, P. R. China
| | - Bin Wang
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Physics and Chemistry Detecting Center, Xinjiang University , Urumqi 830046, P. R. China
| | - Yadong Sun
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Physics and Chemistry Detecting Center, Xinjiang University , Urumqi 830046, P. R. China
| | - Ablimit Abdukadera
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Physics and Chemistry Detecting Center, Xinjiang University , Urumqi 830046, P. R. China
| | - Haiyan Hu
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Physics and Chemistry Detecting Center, Xinjiang University , Urumqi 830046, P. R. China
| | - Qiang Liu
- The Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, School of Chemistry and Chemical Engineering, Physics and Chemistry Detecting Center, Xinjiang University , Urumqi 830046, P. R. China
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49
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Mándity IM, Ötvös SB, Szőlősi G, Fülöp F. Harnessing the Versatility of Continuous-Flow Processes: Selective and Efficient Reactions. CHEM REC 2016; 16:1018-33. [PMID: 26997251 DOI: 10.1002/tcr.201500286] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Indexed: 12/19/2022]
Abstract
There is a great need for effective transformations and a broad range of novel chemical entities. Continuous-flow (CF) approaches are of considerable current interest: highly efficient and selective reactions can be performed in CF reactors. The reaction setup of CF reactors offers a wide variety of possible points where versatility can be introduced. This article presents a number of selective and highly efficient gas-liquid-solid and liquid-solid reactions involving a range of reagents and immobilized catalysts. Enantioselective transformations through catalytic hydrogenation and organocatalytic reactions are included, and isotopically labelled compounds and pharmaceutically relevant 1,2,3-triazoles are synthesized in CF reactors. Importantly, the catalyst bed can be changed to a solid-phase peptide synthesis resin, with which peptide synthesis can be performed with the utilization of only 1.5 equivalents of the amino acid.
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Affiliation(s)
- István M Mándity
- Institute of Pharmaceutical Chemistry University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Sándor B Ötvös
- Institute of Pharmaceutical Chemistry University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,MTA-SZTE Stereochemistry Research Group Hungarian Academy of Sciences, H-6720, Szeged, Eötvös u. 6, Hungary
| | - György Szőlősi
- MTA-SZTE Stereochemistry Research Group Hungarian Academy of Sciences, H-6720, Szeged, Eötvös u. 6, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry University of Szeged, H-6720, Szeged, Eötvös u. 6, Hungary.,MTA-SZTE Stereochemistry Research Group Hungarian Academy of Sciences, H-6720, Szeged, Eötvös u. 6, Hungary
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50
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Nguyen THL, Gigant N, Delarue-Cochin S, Joseph D. Palladium-Catalyzed Oxidative Synthesis of Unsymmetrical Azophenols. J Org Chem 2016; 81:1850-7. [DOI: 10.1021/acs.joc.5b02614] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Thi Hong Long Nguyen
- BioCIS, Université Paris-Sud, CNRS, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Nicolas Gigant
- BioCIS, Université Paris-Sud, CNRS, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Sandrine Delarue-Cochin
- BioCIS, Université Paris-Sud, CNRS, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
| | - Delphine Joseph
- BioCIS, Université Paris-Sud, CNRS, Université Paris-Saclay, F-92296 Châtenay-Malabry, France
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