1
|
Jin X, Nguyen BNT, Davies RP. Synthesis and characterisation of copper(I) complexes with relevance to intramolecular Ullmann O, S-arylation. Dalton Trans 2024; 53:12554-12559. [PMID: 38995223 DOI: 10.1039/d4dt01418a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Copper-catalysed intramolecular Ullman arylation has been frequently used to synthesise benzoxazoles and benzothiazoles. Despite widespread use, investigations into the mechanism and speciation of copper-containing complexes relevant to the catalytic pathway have remained relatively limited. Accordingly, this study aims to elucidate the structural details of potential copper(I) intermediates through the analysis of their solid-state structures using X-ray crystallography, while also investigating the reactivities of these complexes. Five novel copper complexes are reported which are formed prior to the aryl halide activation step and feature distinct aggregation modes based on either Cu4N4O4C4 or Cu4N4S4C4 clusters.
Collapse
Affiliation(s)
- Xiaodong Jin
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College White City Campus, Wood Lane, London W12 0BZ, UK.
- Department of Chemistry, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - Bao-Nguyen T Nguyen
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College White City Campus, Wood Lane, London W12 0BZ, UK.
| | - Robert P Davies
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College White City Campus, Wood Lane, London W12 0BZ, UK.
| |
Collapse
|
2
|
Skrzypczak N, Pyta K, Bohusz W, Leśniewska A, Gdaniec M, Ruszkowski P, Schilf W, Bartl F, Przybylski P. Cascade Transformation of the Ansamycin Benzoquinone Core into Benzoxazole Influencing Anticancer Activity and Selectivity. J Org Chem 2023; 88:9469-9474. [PMID: 37276434 PMCID: PMC10337034 DOI: 10.1021/acs.joc.3c00493] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Indexed: 06/07/2023]
Abstract
The metal-free cascade transformation of geldanamycin benzoquinone core is proposed at relatively mild conditions. This approach yields new benzoxazole ansamycin antibiotics and enables their functionalization in an atom-economic manner, irrespective of the type of amine used. The analysis of the heterocyclization course reveals the dependence of its rate on the nature of the para-substituent within the benzylamine moiety (EDG/EWG) and the strength of the base. The reduction of the ansamycin core enables an increase in anticancer potency and selectivity.
Collapse
Affiliation(s)
- Natalia Skrzypczak
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| | - Krystian Pyta
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
- Lebenswissenschaftliche
Fakultät, Institut für Biologie, Biophysikalische Chemie Humboldt-Universität zu Berlin, Invalidenstraße 42, 10115 Berlin, Germany
| | - Wiktor Bohusz
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| | - Aleksandra Leśniewska
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| | - Maria Gdaniec
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| | - Piotr Ruszkowski
- Department
of Pharmacology, Poznań University
of Medical Sciences, Rokietnicka 5a, 60-806 Poznań, Poland
| | - Wojciech Schilf
- Institute
of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Franz Bartl
- Lebenswissenschaftliche
Fakultät, Institut für Biologie, Biophysikalische Chemie Humboldt-Universität zu Berlin, Invalidenstraße 42, 10115 Berlin, Germany
| | - Piotr Przybylski
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| |
Collapse
|
3
|
Sohail M, Bilal M, Maqbool T, Rasool N, Ammar M, Mahmood S, Malik A, Zubair M, Abbas Ashraf G. Iron-catalyzed synthesis of N-heterocycles via intermolecular and intramolecular cyclization reactions: A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
4
|
Horch T, Molloy EM, Bredy F, Haensch VG, Scherlach K, Dunbar KL, Franke J, Hertweck C. Alternative Benzoxazole Assembly Discovered in Anaerobic Bacteria Provides Access to Privileged Heterocyclic Scaffold. Angew Chem Int Ed Engl 2022; 61:e202205409. [PMID: 35656913 PMCID: PMC9400959 DOI: 10.1002/anie.202205409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Indexed: 11/15/2022]
Abstract
Benzoxazole scaffolds feature prominently in diverse synthetic and natural product-derived pharmaceuticals. Our understanding of their bacterial biosynthesis is, however, limited to ortho-substituted heterocycles from actinomycetes. We report an overlooked biosynthetic pathway in anaerobic bacteria (typified in Clostridium cavendishii) that expands the benzoxazole chemical space to meta-substituted heterocycles and heralds a distribution beyond Actinobacteria. The first benzoxazoles from the anaerobic realm (closoxazole A and B) were elucidated by NMR and chemical synthesis. By genome editing in the native producer, heterologous expression in Escherichia coli, and systematic pathway dissection we show that closoxazole biosynthesis invokes an unprecedented precursor usage (3-amino-4-hydroxybenzoate) and manner of assembly. Synthetic utility was demonstrated by the precursor-directed biosynthesis of a tafamidis analogue. A bioinformatic survey reveals the pervasiveness of related gene clusters in diverse bacterial phyla.
Collapse
Affiliation(s)
- Therese Horch
- Deptartment of Biomolecular ChemistryLeibniz Institute of Natural Product Research and Infection Biology, HKIBeutenbergstrasse 11a07745JenaGermany
| | - Evelyn M. Molloy
- Deptartment of Biomolecular ChemistryLeibniz Institute of Natural Product Research and Infection Biology, HKIBeutenbergstrasse 11a07745JenaGermany
| | - Florian Bredy
- Deptartment of Biomolecular ChemistryLeibniz Institute of Natural Product Research and Infection Biology, HKIBeutenbergstrasse 11a07745JenaGermany
| | - Veit G. Haensch
- Deptartment of Biomolecular ChemistryLeibniz Institute of Natural Product Research and Infection Biology, HKIBeutenbergstrasse 11a07745JenaGermany
| | - Kirstin Scherlach
- Deptartment of Biomolecular ChemistryLeibniz Institute of Natural Product Research and Infection Biology, HKIBeutenbergstrasse 11a07745JenaGermany
| | - Kyle L. Dunbar
- Deptartment of Biomolecular ChemistryLeibniz Institute of Natural Product Research and Infection Biology, HKIBeutenbergstrasse 11a07745JenaGermany
| | - Jonathan Franke
- Deptartment of Biomolecular ChemistryLeibniz Institute of Natural Product Research and Infection Biology, HKIBeutenbergstrasse 11a07745JenaGermany
| | - Christian Hertweck
- Deptartment of Biomolecular ChemistryLeibniz Institute of Natural Product Research and Infection Biology, HKIBeutenbergstrasse 11a07745JenaGermany
- Faculty of Biological SciencesFriedrich Schiller University Jena07743JenaGermany
| |
Collapse
|
5
|
Wu S, Geng F, Dong J, Liu L, Zhou Y. Metal-Free Oxidative Annulation of Phenols and Amines: A General Synthesis of Benzoxazoles. J Org Chem 2022; 87:9112-9127. [PMID: 35786919 DOI: 10.1021/acs.joc.2c00790] [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
The ubiquity of benzoxazoles in natural products, drugs, and functional materials has stimulated numerous efforts toward their synthesis; however, the developed methods rely on prefunctionalized substrates and lack generality. Under metal-free conditions, a highly general synthesis of benzoxazoles direct from abundant and easily available phenols and amines is developed via a modular phenol functionalization controlled by TEMPO. In the reaction, various phenols and primary amines with a broad range of functional groups are compatible, producing structurally and functionally diverse benzoxazoles (64 examples) without or with trace observation of the byproducts of phenol transformation with amines. The practical synthesis, especially for drug tafamidis, demonstrates decisive advantages in generality, selectivity, efficiency, and atom- and step-economies over traditional methods, even in the cases of low yields. Mechanistically, the radical adducts of TEMPO with ortho-cyclohexa-2,4-dien-1-one radicals rather than the well-recognized cyclohexa-3,5-diene-1,2-diones may serve as intermediates.
Collapse
Affiliation(s)
- Shaofeng Wu
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Furong Geng
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jianyu Dong
- School of Physics and Chemistry, Hunan First Normal University, Changsha 410205, China
| | - Long Liu
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yongbo Zhou
- Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| |
Collapse
|
6
|
Horch T, Molloy EM, Bredy F, Haensch VG, Scherlach K, Dunbar KL, Franke J, Hertweck C. Alternative Benzoxazole Assembly Discovered in Anaerobic Bacteria Provides Access to Privileged Heterocyclic Scaffold. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Therese Horch
- Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biomolecular Chemistry GERMANY
| | - Evelyn M. Molloy
- Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biomolecular Chemistry GERMANY
| | - Florian Bredy
- Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biomolecular Chemistry GERMANY
| | - Veit G. Haensch
- Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biomolecular Chemistry GERMANY
| | - Kirstin Scherlach
- Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biomolecular Chemistry GERMANY
| | - Kyle L. Dunbar
- Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biomolecular Chemistry GERMANY
| | - Jonathan Franke
- Leibniz Institute for Natural Product Research and Infection BiologyHans Knöll Institute: Leibniz-Institut fur Naturstoff-Forschung und Infektionsbiologie eV Hans-Knoll-Institut Biomolecular Chemistry GERMANY
| | - Christian Hertweck
- Leibniz Institute for Natural Product Research and Infection Biology, HKI Department of Biomolecular Chemistry Beutenbergstr. 11a 07745 Jena GERMANY
| |
Collapse
|
7
|
Peng L, Hu Z, Zhao Y, Peng L, Xu Z, Yin SF, Tang Z, Qiu R, Kambe N. One-pot synthesis of phosphorylnaphth[2,1- d]oxazoles and products as P,N-ligands in C-N and C-C formation. Org Biomol Chem 2022; 20:4110-4114. [PMID: 35551357 DOI: 10.1039/d2ob00565d] [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
Phosphanylnaphtho[2,1-d]oxazoles were synthesized successfully through one-pot phosphonation of naphthoquinone with diaryl(alkyl)phosphine oxides and Cu-catalyzed oxidative condensation with imines, followed by methylation and reduction. Upon applying 4-phosphanylnaphtho[2,1-d]oxazole as a P,N-chelating ligand, Pd-catalyzed C-N formation of amines or nitrobenzene as well as Ni-catalyzed C-C formation and the synthesis of quinoline proceeded successfully. The reaction was facilely scaled up to give N-benzylaniline 15a in a gram scale synthesis. This research provided a facile and convenient protocol to synthesize phosphanylnaphtho[2,1-d]oxazoles, which could be applied as an efficient P,N-ligand in transition-metal-catalyzed C-N and C-C formation to produce the desired products in high yields with wide functional group tolerance under small catalyst loading, solvent-free conditions in many reactions.
Collapse
Affiliation(s)
- Lingteng Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Zhifang Hu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Yanting Zhao
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Lifen Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China. .,Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Zhi Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Zilong Tang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Nobuaki Kambe
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China. .,Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.
| |
Collapse
|
8
|
Microwave assisted one pot synthesis of 2-alkyl amino benzimidazoles, 2-alkyl amino benzoxazoles and 2-alkyl amino benzthiazoles by using various carbodiimides. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
9
|
Li Y, Wu P, Yang Z. Synthesis of 2-Aryl Benzoxazoles from Benzoxazoles and α-Ketoic Acids by Photoredox Catalysis. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110030] [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]
|
10
|
M. Honnanayakanavar J, Owk O, Suresh S. Recent Advances in the Tandem Copper-Catalyzed Ullmann-Goldberg N-Arylation–Cyclization Strategies. Org Biomol Chem 2022; 20:2993-3028. [DOI: 10.1039/d2ob00082b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N‒Aryl bond formation under copper catalysis has been playing a pivotal role and has been extensively used as a key step in the total syntheses of several therapeutic molecules. The...
Collapse
|
11
|
Abstract
A Cu-catalyzed straightforward synthesis of benzoxazoles from free phenols and cyclic oxime esters is reported. The mild reaction conditions tolerate various electron-withdrawing and electron-donating functional groups on both substrates, affording benzoxazoles in moderate to good yields. With this protocol, large-scale syntheses of Ezutromid and Flunoxaprofe in one or two steps are demonstrated. A catalytic mechanism, which includes Cu-catalyzed amination via inner-sphere electron transfer and consequent annulation, is proposed.
Collapse
Affiliation(s)
- Zheng-Hai Wang
- Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, China
| | - Dong-Hui Wang
- Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, CAS, 345 Lingling Road, Shanghai 200032, China.,Department of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Boulevard, Nanjing 210023, China
| |
Collapse
|
12
|
Wu S, Zhou D, Geng F, Dong J, Su L, Zhou Y, Yin S. Metal‐Free Oxidative Condensation of Catechols, Aldehydes and NH
4
OAc towards Benzoxazoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shaofeng Wu
- Advanced Catalytic Engineering Research Center of the Ministry of Education College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Dan Zhou
- Advanced Catalytic Engineering Research Center of the Ministry of Education College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Furong Geng
- Advanced Catalytic Engineering Research Center of the Ministry of Education College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Jianyu Dong
- Department of Educational Science Hunan First Normal University Changsha 410205 People's Republic of China
| | - Lebin Su
- Advanced Catalytic Engineering Research Center of the Ministry of Education College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Yongbo Zhou
- Advanced Catalytic Engineering Research Center of the Ministry of Education College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| | - Shuang‐Feng Yin
- Advanced Catalytic Engineering Research Center of the Ministry of Education College of Chemistry and Chemical Engineering Hunan University Changsha 410082 People's Republic of China
| |
Collapse
|
13
|
Exploration of Cu-catalyzed regioselective hydrodehalogenation of o-haloanilides using EtOH as hydrogen source. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
14
|
Al‐Zoubi RM, Al‐Jammal WK, Al‐Zoubi MS, Ferguson MJ, Zarour A, Yassin A, Al‐Ansari A. Palladium‐Catalyzed Regioselective Coupling of Amidines and 1,2,3‐Triiodobenzenes: Facile Synthesis of 2,3‐Diiodinated
N
‐Arylbenzimidamides as Potential MDM
2
and MDM
4
Inhibitors. ChemistrySelect 2021. [DOI: 10.1002/slct.202100671] [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]
Affiliation(s)
- Raed M. Al‐Zoubi
- Department of Chemistry Jordan University of Science and Technology P.O.Box 3030 Irbid, 22110 Jordan
- Surgical Research Section Department of Surgery Hamad Medical Corporation Doha Qatar
| | - Walid K. Al‐Jammal
- Department of Chemistry Jordan University of Science and Technology P.O.Box 3030 Irbid, 22110 Jordan
| | - Mazhar S. Al‐Zoubi
- Department of Basic Medical Sciences Faculty of Medicine Yarmouk University Irbid Jordan
| | - Michael J. Ferguson
- Department of Chemistry Gunning-Lemieux Chemistry Centre University of Alberta Edmonton Alberta T6G2G2 Canada
| | - Ahmad Zarour
- Surgical Research Section Department of Surgery Hamad Medical Corporation Doha Qatar
| | - Aksam Yassin
- Surgical Research Section Department of Surgery Hamad Medical Corporation Doha Qatar
| | - Abdulla Al‐Ansari
- Surgical Research Section Department of Surgery Hamad Medical Corporation Doha Qatar
| |
Collapse
|
15
|
Chen F, Zhu C, Jiang H. [3+1+1] Annulation Reaction of Benzo‐1,2‐Quinones, Aldehydes and Hydroxylamine Hydrochloride: Access to Benzoxazoles with Inorganic Nitrogen Source. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001521] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Fulin Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 People's Republic of China
| | - Chuanle Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 People's Republic of China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry (Lanzhou University) Lanzhou 730000 People's Republic of China
| |
Collapse
|
16
|
Dhawale KD, Ingale AP, Shinde SV, Thorat NM, Patil LR. ZnO-NPs catalyzed condensation of 2-aminothiophenol and aryl/alkyl nitriles: Efficient green synthesis of 2-substituted benzothiazoles. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1894577] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kiran D. Dhawale
- Department of Chemistry, Rao Bahadur Narayan Borawake College, Ahmednagar, India
| | - Ajit P. Ingale
- Department of Chemistry, Dada Patil College, Ahmednagar, India
| | | | - Nitin M. Thorat
- Department of Chemistry, Maharaja Jivajirao Shinde College, Ahmednagar, India
| | - Limbraj R. Patil
- Department of Chemistry, Maharaja Jivajirao Shinde College, Ahmednagar, India
| |
Collapse
|
17
|
Dumas MT, Jenkins TF, Wedal JC, Ziller JW, Furche F, Evans WJ. Synthesis of a 2-Isocyanophenolate Ligand, (2-CNC 6H 4O) 1–, by Ring-Opening of Benzoxazole with Rare-Earth Metal Complexes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Megan T. Dumas
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Tener F. Jenkins
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Justin C. Wedal
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Joseph W. Ziller
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Filipp Furche
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - William J. Evans
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| |
Collapse
|
18
|
Prajapati RV, Prajapati VD, Purohit VB, Avalani JR, Kamani RD, Sapariya NH, Raval DK. Elemental sulfur and aryl iodides in copper(I)iodide catalyzed sulfenylation of 1-aryl-3-alkyl-1H-pyrazol-5(4H)-ones. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
19
|
Al-Zoubi RM, Al-Jammal WK, Al-Zoubi MS, McDonald R, Zarour A, Yassin A, Al-Ansari A. Copper( i)-catalyzed regioselective Ullmann-type coupling of primary carbamates and 5-substituted-1,2,3-triiodobenzenes: facile synthesis of 2,3-diiodinated N-aryl carbamates. NEW J CHEM 2021. [DOI: 10.1039/d1nj01332g] [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
Mild, efficient, and unprecedented synthesis of 2,3-diiodinated N-aryl carbamates via highly regioselective Ullmann-type cross-coupling of 5-substituted-1,2,3-triiodobenzene and carbamate.
Collapse
Affiliation(s)
- Raed M. Al-Zoubi
- Department of Chemistry
- Jordan University of Science and Technology
- P.O.Box 3030
- Irbid
- Jordan
| | - Walid K. Al-Jammal
- Department of Chemistry
- Jordan University of Science and Technology
- P.O.Box 3030
- Irbid
- Jordan
| | - Mazhar S. Al-Zoubi
- Department of Basic Medical Sciences
- Faculty of Medicine
- Yarmouk University
- Irbid
- Jordan
| | - Robert McDonald
- Department of Chemistry
- Gunning-Lemieux Chemistry Centre
- University of Alberta
- Edmonton
- Canada
| | - Ahmad Zarour
- Surgical Research Section
- Department of Surgery
- Hamad Medical Corporation
- Doha
- Qatar
| | - Aksam Yassin
- Surgical Research Section
- Department of Surgery
- Hamad Medical Corporation
- Doha
- Qatar
| | - Abdulla Al-Ansari
- Surgical Research Section
- Department of Surgery
- Hamad Medical Corporation
- Doha
- Qatar
| |
Collapse
|
20
|
Wu F, Xie J, Zhu Z. 1,10‐Phenanthroline: A versatile ligand to promote copper‐catalyzed cascade reactions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5926] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Fengtian Wu
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Material Science East China University of Technology Nanchang 330013 China
| | - Jianwei Xie
- College of Chemistry and Bioengineering Hunan University of Science and Engineering Yongzhou 425199 China
| | - Zhiqiang Zhu
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Material Science East China University of Technology Nanchang 330013 China
| |
Collapse
|
21
|
Le HAN, Nguyen LH, Nguyen QNB, Nguyen HT, Nguyen KQ, Tran PH. Straightforward synthesis of benzoxazoles and benzothiazoles via photocatalytic radical cyclization of 2-substituted anilines with aldehydes. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106120] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
|
22
|
Hu FP, Cui XF, Lu GQ, Huang GS. Base-promoted Lewis acid catalyzed synthesis of quinazoline derivatives. Org Biomol Chem 2020; 18:4376-4380. [PMID: 32458847 DOI: 10.1039/d0ob00225a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
A one-pot protocol has been developed for the synthesis of quinazolinones from amide-oxazolines with TsCl via a cyclic 1,3-azaoxonium intermediate and 6π electron cyclization in the presence of a Lewis acid and base. The process is operationally simple and has a broad substrate scope. This method provides a unique strategy for the construction of quinazolinones.
Collapse
Affiliation(s)
- Fang-Peng Hu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
| | - Xin-Feng Cui
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
| | - Guo-Qiang Lu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
| | - Guo-Sheng Huang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
| |
Collapse
|
23
|
Wang D, Li H, Sun S, Xu Y. Cyanide Boosting Copper Catalysis: A Mild Approach to Fluorescent Benzazole Derivatives from Nonemissive Schiff Bases in Biological Media. Org Lett 2020; 22:3361-3366. [PMID: 32275161 DOI: 10.1021/acs.orglett.0c00784] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An application of nucleophilic cyclization and oxidation of nonemissive Schiff bases via cyanide boosting copper catalysis to synthesize fluorescent benzazole derivatives in high conversion yield is disclosed. This approach is highlighted by broad substrate scope, fast reaction time, and mild conditions and can efficiently proceed in living cells or Arabidopsis root tissues. Furthermore, this methodology can be applied for selective detection of Cu2+ and CN-.
Collapse
Affiliation(s)
- Dejia Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Hongjuan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Shiguo Sun
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Yongqian Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| |
Collapse
|
24
|
Tang Y, Li M, Gao H, Rao G, Mao Z. Efficient Cu-catalyzed intramolecular O-arylation for synthesis of benzoxazoles in water. RSC Adv 2020; 10:14317-14321. [PMID: 35498497 PMCID: PMC9051899 DOI: 10.1039/d0ra00570c] [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] [Received: 01/19/2020] [Accepted: 03/28/2020] [Indexed: 12/28/2022] Open
Abstract
An efficient method was developed for synthesis of benzoxazoles by Cu-catalyzed intramolecular O-arylation of o-halobenzanilides in water. This strategy provides several advantages, such as high yields, water as a green solvent and functional groups tolerance. An efficient method was developed for synthesis of benzoxazoles by Cu-catalyzed intramolecular O-arylation of o-halobenzanilides in water.![]()
Collapse
Affiliation(s)
- Yanling Tang
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| | - Minxin Li
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| | - Hui Gao
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| | - Gaoxiong Rao
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| | - Zewei Mao
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| |
Collapse
|
25
|
Kaur N, Verma Y, Ahlawat N, Grewal P, Bhardwaj P, Jangid NK. Copper-assisted synthesis of five-memberedO-heterocycles. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1724144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | | |
Collapse
|
26
|
Synthesis, photophysical characterization, CASSCF/CASPT2 calculations and CT-DNA interaction study of amino and azido benzazole analogues. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111938] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
27
|
Yang Z, Zhou L, Liu Y, Lu H, Wu F, Xie Y, Liu J. Base‐Promoted Metal‐Free Arylation of Benzoxazoles with Phenylglyoxylic Acids. ChemistrySelect 2019. [DOI: 10.1002/slct.201903641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zhiyong Yang
- School of Chemical EngineeringGuizhou Institute of Technology Guizhou Province Guiyang 550003 P. R. China
| | - Liang Zhou
- School of Chemical EngineeringGuizhou Institute of Technology Guizhou Province Guiyang 550003 P. R. China
| | - Ying Liu
- School of Chemical EngineeringGuizhou Institute of Technology Guizhou Province Guiyang 550003 P. R. China
| | - Hongwen Lu
- School of Chemical EngineeringGuizhou Institute of Technology Guizhou Province Guiyang 550003 P. R. China
| | - Fengxuan Wu
- School of Chemical EngineeringGuizhou Institute of Technology Guizhou Province Guiyang 550003 P. R. China
| | - Yuxin Xie
- School of Chemical EngineeringGuizhou Institute of Technology Guizhou Province Guiyang 550003 P. R. China
| | - Jianle Liu
- School of Chemical EngineeringGuizhou Institute of Technology Guizhou Province Guiyang 550003 P. R. China
| |
Collapse
|
28
|
Niu Z, Li L, Liu X, Liang Y. Transition‐Metal‐Free Alkylation/Arylation of Benzoxazole via Tf
2
O‐Activated‐Amide. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901078] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Zhi‐Jie Niu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
| | - Lian‐Hua Li
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
| | - Xue‐Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
| | - Yong‐Min Liang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 People's Republic of China
| |
Collapse
|
29
|
Singh M, Bose P, Singh AS, Tiwari VK. 1‐(Hydroxymethyl)‐1
H
‐benzotriazole: An Efficient Ligand for Copper‐Catalyzed Ullmann‐Type Coupling Reaction Leading to Expeditious Synthesis of Diverse Benzoxazoles and Benzothiazoles. ChemistrySelect 2019. [DOI: 10.1002/slct.201902420] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mala Singh
- Department of ChemistryInstitute of ScienceBanaras Hindu University, Varansi Uttar Pradesh-221005 INDIA
| | - Priyanka Bose
- Department of ChemistryInstitute of ScienceBanaras Hindu University, Varansi Uttar Pradesh-221005 INDIA
| | - Anoop S. Singh
- Department of ChemistryInstitute of ScienceBanaras Hindu University, Varansi Uttar Pradesh-221005 INDIA
| | - Vinod K. Tiwari
- Department of ChemistryInstitute of ScienceBanaras Hindu University, Varansi Uttar Pradesh-221005 INDIA
| |
Collapse
|
30
|
Luo Z, Wu H, Li Y, Chen Y, Nie J, Lu S, Zhu Y, Zeng Z. Cesium Fluoride and Copper‐Catalyzed One‐Pot Synthesis of Benzoxazoles
via
a Site‐Selective Amide C−N Bond Cleavage. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900485] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zhongfeng Luo
- College of Chemistry and Environment South China Normal University Guangzhou 510006 People's Republic of China
| | - Hongxiang Wu
- College of Chemistry and Environment South China Normal University Guangzhou 510006 People's Republic of China
| | - Yue Li
- College of Chemistry and Environment South China Normal University Guangzhou 510006 People's Republic of China
| | - Yuwen Chen
- College of Chemistry and Environment South China Normal University Guangzhou 510006 People's Republic of China
| | - Jingyi Nie
- College of Chemistry and Environment South China Normal University Guangzhou 510006 People's Republic of China
| | - Siqi Lu
- College of Chemistry and Environment South China Normal University Guangzhou 510006 People's Republic of China
| | - Yulin Zhu
- College of Chemistry and Environment South China Normal University Guangzhou 510006 People's Republic of China
| | - Zhuo Zeng
- College of Chemistry and Environment South China Normal University Guangzhou 510006 People's Republic of China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry Chinese Academy of Science 345 Lingling Road Shanghai 200032 People's Republic of China
| |
Collapse
|
31
|
Mishra N, Singh AS, Agrahari AK, Singh SK, Singh M, Tiwari VK. Synthesis of Benz-Fused Azoles via C-Heteroatom Coupling Reactions Catalyzed by Cu(I) in the Presence of Glycosyltriazole Ligands. ACS COMBINATORIAL SCIENCE 2019; 21:389-399. [PMID: 30943366 DOI: 10.1021/acscombsci.9b00004] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Glycosyl triazoles are conveniently accessible and contain multiple metal-binding units that may assist in metal-mediated catalysis. Azide derivatives of d-glucose have been converted to their respective aryltriazoles and screened as ligands for the synthesis of 2-substituted benz-fused azoles and benzimidazoquinazolinones by Cu-catalyzed intramolecular Ullmann type C-heteroatom coupling. Good to excellent yields for a variety of benz-fused heterocyles were obtained for this readily accessible catalytic system.
Collapse
Affiliation(s)
- Nidhi Mishra
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Anoop S. Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Anand K. Agrahari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Sumit K. Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Mala Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Vinod K. Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| |
Collapse
|
32
|
Gao TH, Wang CM, Tang KX, Xu YG, Sun LP. Amide-Oxazoline Directed ortho
-C-H Nitration Mediated by CuII. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Tian-Hong Gao
- Jiangsu Key Laboratory of Drug Design & Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; 24 Tongjiaxiang 210009 Nanjing P.R. China
| | - Chun-Meng Wang
- Jiangsu Key Laboratory of Drug Design & Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; 24 Tongjiaxiang 210009 Nanjing P.R. China
| | - Kai-Xiang Tang
- Jiangsu Key Laboratory of Drug Design & Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; 24 Tongjiaxiang 210009 Nanjing P.R. China
| | - Yun-Gen Xu
- Jiangsu Key Laboratory of Drug Design & Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; 24 Tongjiaxiang 210009 Nanjing P.R. China
| | - Li-Ping Sun
- Jiangsu Key Laboratory of Drug Design & Optimization; Department of Medicinal Chemistry; China Pharmaceutical University; 24 Tongjiaxiang 210009 Nanjing P.R. China
| |
Collapse
|
33
|
Sreedevi R, Saranya S, Rohit KR, Anilkumar G. Recent Trends in Iron‐Catalyzed Reactions towards the Synthesis of Nitrogen‐Containing Heterocycles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801471] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Radhakrishnan Sreedevi
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686560 India
| | - Salim Saranya
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686560 India
| | - K. R. Rohit
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686560 India
| | - Gopinathan Anilkumar
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kottayam 686560 India
- Advanced Molecular Materials Research Centre (AMMRC)Mahatma Gandhi University Priyadarsini Hills, P O Kottayam 686560 India
| |
Collapse
|
34
|
Tian Q, Luo W, Gan Z, Li D, Dai Z, Wang H, Wang X, Yuan J. Eco-Friendly Syntheses of 2-Substituted Benzoxazoles and 2-Substituted Benzothiazoles from 2-Aminophenols, 2-Aminothiophenols and DMF Derivatives in the Presence of Imidazolium Chloride. Molecules 2019; 24:E174. [PMID: 30621218 PMCID: PMC6337447 DOI: 10.3390/molecules24010174] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/24/2018] [Accepted: 12/29/2018] [Indexed: 11/17/2022] Open
Abstract
A simple, economical and metal-free approach to the synthesis of 2-substituted benzoxazoles and 2-substituted benzothiazoles from 2-aminophenols, 2-aminothiophenols and DMF derivatives, only using imidazolium chloride (50% mmol) as promoter without any other additive, was reported. Various 2-substituted benzoxazoles and 2-substituted benzothiazoles were thus prepared in moderate to excellent yields.
Collapse
Affiliation(s)
- Qingqiang Tian
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Wen Luo
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Zongjie Gan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Dan Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Zeshu Dai
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Huajun Wang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Xuetong Wang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Jianyong Yuan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| |
Collapse
|
35
|
Oshimoto K, Tsuji H, Kawatsura M. Synthesis of benzoxazoles via the copper-catalyzed hydroamination of alkynones with 2-aminophenols. Org Biomol Chem 2019; 17:4225-4229. [DOI: 10.1039/c9ob00572b] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe herein the synthetic method to benzoxazole derivatives via the copper-catalyzed hydroamination of alkynones with 2-aminophenols.
Collapse
Affiliation(s)
- Kohei Oshimoto
- Department of Chemistry
- College of Humanities & Sciences
- Nihon University
- Tokyo 156-8550
- Japan
| | - Hiroaki Tsuji
- Department of Chemistry
- College of Humanities & Sciences
- Nihon University
- Tokyo 156-8550
- Japan
| | - Motoi Kawatsura
- Department of Chemistry
- College of Humanities & Sciences
- Nihon University
- Tokyo 156-8550
- Japan
| |
Collapse
|
36
|
Kaldhi D, Vodnala N, Gujjarappa R, Nayak S, Ravichandiran V, Gupta S, Hazra CK, Malakar CC. Organocatalytic oxidative synthesis of C2-functionalized benzoxazoles, naphthoxazoles, benzothiazoles and benzimidazoles. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.12.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
37
|
Panda N, Sahoo K. Synthesis of 4‐Alkenyl Benzoxazoles via Pd‐catalyzed
ortho
C−H Functionalization of 2‐Amidophenols. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801272] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Niranjan Panda
- Department of ChemistryNational Institute of Technology Rourkela Odisha- 769008 India
| | - Kanchanbala Sahoo
- Department of ChemistryNational Institute of Technology Rourkela Odisha- 769008 India
| |
Collapse
|
38
|
Tangellamudi ND, Shinde SB, Pooladanda V, Godugu C, Balasubramanian S. Facile synthesis of 2-aryl 5-hydroxy benzo[d]oxazoles and their in vitro anti-proliferative effects on various cancer cell lines. Bioorg Med Chem Lett 2018; 28:3639-3647. [DOI: 10.1016/j.bmcl.2018.10.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/20/2018] [Accepted: 10/24/2018] [Indexed: 10/28/2022]
|
39
|
Segovia-Pérez R, Alvarado-Rodríguez JG, Rojas-Lima S, López-Ruiz H, Andrade-López N, Jancik V, Cruz-Borbolla J, Martínez-Otero D. Coordination diversity in tin compounds with bis(benzoxazole)phenol as a polydentate ligand: Synthesis and crystal structure studies. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1528498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Raúl Segovia-Pérez
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma, Hidalgo, México
| | - José G. Alvarado-Rodríguez
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma, Hidalgo, México
| | - Susana Rojas-Lima
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma, Hidalgo, México
| | - Heraclio López-Ruiz
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma, Hidalgo, México
| | - Noemí Andrade-López
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma, Hidalgo, México
| | - Vojtech Jancik
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Toluca, Edo. de México, México
| | - Julián Cruz-Borbolla
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma, Hidalgo, México
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Toluca, Edo. de México, México
| |
Collapse
|
40
|
CuNiFe a Magnetic Nano‐Catalyst: an Efficient Catalyst for the Selective Synthesis of Benzoxazoles. ChemistrySelect 2018. [DOI: 10.1002/slct.201801462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
41
|
Tang L, Yang Z, Sun T, Zhang D, Ma X, Rao W, Zhou Y. Unexpected Decarboxylation-Triggered o
-Hydroxyl-Controlled Redox Condensation of Phenylglycines with 2-Nitrophenols in Aqueous Media. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800586] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Lin Tang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
- Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan; Xinyang Henan 464000 People's Republic of China
| | - Zhen Yang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Tian Sun
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Di Zhang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Xiantao Ma
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Weihao Rao
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Yuqiang Zhou
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| |
Collapse
|
42
|
Moghaddam FM, Saberi V, Kalhor S, Veisi N. Palladium(II) Immobilized Onto the Glucose Functionalized Magnetic Nanoparticle as a New and Efficient Catalyst for the One-pot Synthesis of Benzoxazoles. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4240] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Firouz Matloubi Moghaddam
- Laboratory of Organic Synthesis and Natural Products, Department of Chemistry; Sharif University of Technology; Tehran Iran
| | - Vahid Saberi
- Laboratory of Organic Synthesis and Natural Products, Department of Chemistry; Sharif University of Technology; Tehran Iran
| | - Sepideh Kalhor
- Laboratory of Organic Synthesis and Natural Products, Department of Chemistry; Sharif University of Technology; Tehran Iran
| | - Nazila Veisi
- Laboratory of Organic Synthesis and Natural Products, Department of Chemistry; Sharif University of Technology; Tehran Iran
| |
Collapse
|
43
|
Meng X, Wang Y, Chen B, Chen G, Jing Z, Zhao P. OMS-2/H2O2/Dimethyl Carbonate: An Environmentally-Friendly Heterogeneous Catalytic System for the Oxidative Synthesis of Benzoxazoles at Room Temperature. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00315] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xu Meng
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Yuanguang Wang
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Baohua Chen
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Gansu Lanzhou, 730000, P. R. China
| | - Gexin Chen
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Zhenqiang Jing
- Suzhou Institute of Nano-Tech and Nano-Bionic (SINANO), Chinese Academy of Sciences, Suzhou 215123, P. R. China
| | - Peiqing Zhao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research
Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| |
Collapse
|
44
|
|
45
|
|
46
|
Naeimi H, Rouzegar Z, Rahmatinejad S. Sonocatalyzed facile synthesis of 2-aryl benzoxazoles using MnO2 nanoparticles as oxidant agent under mild conditions. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1365371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Hossein Naeimi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Zahra Rouzegar
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Soraya Rahmatinejad
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| |
Collapse
|
47
|
Zhang R, Qin Y, Zhang L, Luo S. Oxidative Synthesis of Benzimidazoles, Quinoxalines, and Benzoxazoles from Primary Amines by ortho-Quinone Catalysis. Org Lett 2017; 19:5629-5632. [DOI: 10.1021/acs.orglett.7b02786] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Ruipu Zhang
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Qin
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Long Zhang
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sanzhong Luo
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
48
|
Wan L, Qiao K, Yuan X, Zheng MW, Fan BB, Di ZC, Zhang D, Fang Z, Guo K. Nickel-Catalyzed Regioselective C-H Bond Mono- and Bis-Nitration of Aryloxazolines with tert-
Butyl Nitrite as Nitro Source. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700186] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Li Wan
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (; SICAM); Nanjing 211816 People's Republic of China
| | - Kai Qiao
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
| | - Xin Yuan
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
| | - Ming-Wei Zheng
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
| | - Bing-Bing Fan
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
| | - Zhe Chen Di
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
| | - Dong Zhang
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 211816 People's Republic of China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (; SICAM); Nanjing 211816 People's Republic of China
- State Key Laboratory of Materials-Oriented Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
| |
Collapse
|
49
|
Liu L, Qian LW, Wu S, Dong J, Xu Q, Zhou Y, Yin SF. Selective Aerobic C–H Amination of Phenols with Primary Amines over Copper toward Benzoxazoles. Org Lett 2017; 19:2849-2852. [DOI: 10.1021/acs.orglett.7b01061] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Long Liu
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Liang-Wei Qian
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shaofeng Wu
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jianyu Dong
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Qing Xu
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Yongbo Zhou
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuang-Feng Yin
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| |
Collapse
|
50
|
Naeimi H, Rouzegar Z, Rahmatinejad S. Catalyst-free microwave-promoted one pot synthesis of 2-aryl benzoxazoles using MnO2 nanoparticles as a convenient oxidant under mild condition. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2909-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|