1
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Sheikh AR, Arif A, Khan MM. Aryl glyoxal: a prime synthetic equivalent for multicomponent reactions in the designing of oxygen heterocycles. RSC Adv 2023; 13:11652-11684. [PMID: 37063730 PMCID: PMC10103687 DOI: 10.1039/d2ra08315a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/06/2023] [Indexed: 04/18/2023] Open
Abstract
The category of bifunctional building blocks overrides many others because of their fascinating wide applicability in synthetic chemistry. Aryl glyoxal is one of the key molecules that has been extensively used in heterocyclic chemistry to afford nearly all types of five- and six-membered heterocycles, which are the structural constituents of many natural products. The multicomponent reaction is a practical strategy to utilize this wonderful moiety with different types of starting materials to obtain numerous diverse oxygen heterocycles. This review covers the advancement of aryl glyoxal as a prime synthetic equivalent in recent years for the synthesis of oxygen heterocycles.
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Affiliation(s)
| | - Anam Arif
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 India
| | - Md Musawwer Khan
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 India
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2
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Wei L, Yuan G. Synthesis of 2,4,5-trisubstituted oxazoles from 1,2-diketones and amines by using an electrochemical method. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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3
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Cui HL. Recent Advances in DMSO-Based Direct Synthesis of Heterocycles. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238480. [PMID: 36500564 PMCID: PMC9738701 DOI: 10.3390/molecules27238480] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Besides serving as a low-toxicity, inexpensive and easily accessible solvent, dimethyl sulfoxide (DMSO) has also been extensively used as a versatile reagent for the synthesis of functionalized molecules. Dimethyl sulfoxide can not only be utilized as a carbon source, a sulfur source and an oxygen source, but also be employed as a crucial oxidant enabling various transformations. The past decade has witnessed a large number of impressive achievements on the direct synthesis of heterocycles as well as modifications of heterocyclic compounds by applying DMSO as a reagent. This review summarized the DMSO-based direct heterocycle constructions from 2012 to 2022.
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Affiliation(s)
- Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, China
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4
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Recent Advances of Green Catalytic System I2/DMSO in C–C and C–Heteroatom Bonds Formation. Catalysts 2022. [DOI: 10.3390/catal12080821] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Developing a green, practical and efficient method for the formation of C–C and C–Heteroatom bonds is an important topic in modern organic synthetic chemistry. In recent years, the I2/DMSO catalytic system has attracted wide attention because of its green, high efficiency, atomic economy, low cost, mild reaction conditions and it is environment-friendly, which is more in line with the requirements of sustainable chemistry. Heteroatom-containing compounds have shown lots of important applications in pharmaceutical synthesis, agrochemicals, material chemistry and organic dyes. At present, the I2/DMSO catalytic system has been successfully applied to the synthesis of various heteroatom-containing compounds. The C–C and C–Heteroatom bonds have been formed efficiently, which has been proved to be a green and mild catalytic system. In this review, the research achievements of the I2/DMSO catalytic system in the formation of C–C and C–Heteroatom bonds from 2015 to date are described, and the research area is prospected. This review attempts to reveal the general law of iodine catalysis and lay a foundation for the design of new reactions.
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5
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Kadu VD. Recent Advances for Synthesis of Oxazole Heterocycles
via
C‐H/C‐N Bond Functionalization of Benzylamines. ChemistrySelect 2022. [DOI: 10.1002/slct.202104028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Vikas D. Kadu
- School of Chemical Sciences Punyashlok Ahilyadevi Holkar Solapur University Solapur 413255 Maharashtra India
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6
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Jiang D, Jia J, Wang B, Li B. Access to 5-fluoroalkylated trisubstituted oxazoles via copper-catalyzed cyclization of α-fluoroalkyl-α-diazoketones with amides. Chem Commun (Camb) 2022; 58:4853-4856. [PMID: 35348157 DOI: 10.1039/d2cc01057g] [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
A novel copper-catalyzed cyclization of α-fluoroalkyl-α-diazoketones with (thio)amides has been developed. This mechanistically distinct protocol provides a robust and straightforward approach to construct 5-fluoroalkylated trisubstituted oxazoles and thiazoles with high efficiency and excellent functional group compatibility. Experimental studies suggest a mechanism involving imidate ligand migratory insertion of a copper carbenoid as the key step.
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Affiliation(s)
- Di Jiang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Jingpei Jia
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
| | - Baiquan Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China. .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Bin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
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7
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Li JQ, Chen XH, Cui HL. Modification of Pyrrolo[2,1- a]isoquinolines and Pyrrolo[1,2- a]quinolines with Ammonium Acetate and Dimethyl Sulfoxide via Methylthiomethylation. J Org Chem 2022; 87:2421-2434. [PMID: 35138091 DOI: 10.1021/acs.joc.1c02322] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An efficient methylthiomethylation of pyrroloisoquinolines and pyrroloquinolines has been reached by the use of ammonium acetate and dimethyl sulfoxide. Methylthiomethylated heterocycles can be obtained in moderate to good yields in most cases, while trace amounts to good yields of methylene-bridged products can be observed. Choice of DMSO activator and its amount have a great influence on the chemoselectivity of this process. It is worth noting that this process can also be scalable. Another feature of this process is that the product can be transformed to sulfone and sulfoxide easily.
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Affiliation(s)
- Jia-Qin Li
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China
| | - Xiao-Hui Chen
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China.,Tonichem Pharmaceutical Technology Co., Ltd, Huizhou 516008, P.R. China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, P.R. China
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8
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Ma JT, Chen T, Chen XL, Zhou Y, Yu ZC, Zhuang SY, Alimu M, Wu YD, Xiang JC, Wu AX. One-step synthesis of azepino[3,4- b]indoles by cooperative aza-[4 + 3] cycloaddition from readily available feedstocks. Org Chem Front 2022. [DOI: 10.1039/d2qo00816e] [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 demonstrate the feasibility of obtaining azepino[3,4-b]indoles by one-step synthesis from a four-component reaction system comprising readily available starting materials. This transformation affords a diverse range of azepino[3,4-b]indoles in a highly efficient manner.
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Affiliation(s)
- Jin-Tian Ma
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Ting Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiang-Long Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Zhi-Cheng Yu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Shi-Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Maierhaba Alimu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Jia-Chen Xiang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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9
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Neha K, Ali F, Haider K, Khasimbi S, Wakode S. Synthetic approaches for oxazole derivatives: A review. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1986843] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kumari Neha
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), DPSRU, New Delhi, India
| | - Faraat Ali
- Department of Inspection and Enforcement, Laboratory services, Botswana Medicines Regulatory Authority, Gaborone, Botswana
| | - Kashif Haider
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard (Deemed to be University), New Delhi, India
| | - Shaik Khasimbi
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), DPSRU, New Delhi, India
| | - Sharad Wakode
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), DPSRU, New Delhi, India
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10
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Zhao W, Zhang C, Zhong P, Zhou W, Zhang C, Cui DM. Diversity-oriented synthesis of imidazo[1,2- a][1,3,5]triazine derivatives from 2-amine-[1,3,5]triazines with ketones. Chem Commun (Camb) 2021; 57:10715-10718. [PMID: 34581713 DOI: 10.1039/d1cc04294g] [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
An I2-mediated annulation of 2-amino[1,3,5]triazines and ketones for the synthesis of imidazo[1,2-a][1,3,5]triazines is presented. Electron rich, or electron poor acetophenone and heterocycle ketones, as well as propiophenone, are functionalized with 2-amino-[1,3,5]triazines. Another class of imidazo[1,2-a][1,3,5]triazines tethered with an additional 1,2-dicarbonyl motif through the combination of annulation and C-H functionalization were obtained instead by changing the reaction conditions. The new methods are practically straightforward and applicable on a gram scale.
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Affiliation(s)
- Wanqiu Zhao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Cheng Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Pengzhen Zhong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Wei Zhou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Chen Zhang
- School of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dong-Mei Cui
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
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11
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12
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Zhang S, Wang S, Leng Y, Wu Y. One-pot synthesis of 2-acylbenzothiazoles from 2-aminobenzenethiols and arylacetonitriles via cyclization and sequential oxidation. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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13
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Wu D, Lu Y, Hao W, Tu S, Jiang B. Synthesis of Fully Substituted Oxazoles via an NFSI/KF‐Mediated Double Bond Cleavage‐Rearrangement Cascade. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000627] [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)
- Dan Wu
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Yi Lu
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Wen‐Juan Hao
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Shu‐Jiang Tu
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Bo Jiang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
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14
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Liang F, Liu K, Zhao C, Shang Z, Kong H, Yin Y, Zhu Y, Sun Y, Yao J. Convergent Domino Cyclization: Oxidative [3+1+1] Annulation for One‐Pot Synthesis of 2‐Quinoline‐4,5‐diaryl‐oxazoles from Methyl Azaarenes, Benzoins and NH
4
OAc. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Fei‐Fei Liang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
| | - Kai‐Xuan Liu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
| | - Cong Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
| | - Zhi‐Hao Shang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
| | - Hong‐Mei Kong
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
| | - Ya‐Qing Yin
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
| | - Yan‐Ping Zhu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
| | - Yuan‐Yuan Sun
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
| | - Jian‐Wen Yao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University Shandong, Yantai 264005 P. R. China
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15
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Dhawan S, Kumar V, Girase PS, Mokoena S, Karpoormath R. Recent Progress in Iodine‐Catalysed C−O/C−N Bond Formation of 1,3‐Oxazoles: A Comprehensive Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202003969] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sanjeev Dhawan
- Department of Pharmaceutical Chemistry Discipline of Pharmaceutical Sciences College of Health Sciences University of KwaZulu-Natal (Westville) Durban 4000 South Africa
| | - Vishal Kumar
- Department of Pharmaceutical Chemistry Discipline of Pharmaceutical Sciences College of Health Sciences University of KwaZulu-Natal (Westville) Durban 4000 South Africa
| | - Pankaj S. Girase
- Department of Pharmaceutical Chemistry Discipline of Pharmaceutical Sciences College of Health Sciences University of KwaZulu-Natal (Westville) Durban 4000 South Africa
| | - Sithabile Mokoena
- Department of Pharmaceutical Chemistry Discipline of Pharmaceutical Sciences College of Health Sciences University of KwaZulu-Natal (Westville) Durban 4000 South Africa
| | - Rajshekhar Karpoormath
- Department of Pharmaceutical Chemistry Discipline of Pharmaceutical Sciences College of Health Sciences University of KwaZulu-Natal (Westville) Durban 4000 South Africa
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16
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Rajai-Daryasarei S, Gohari MH, Mohammadi N. Reactions involving aryl methyl ketone and molecular iodine: a powerful tool in the one-pot synthesis of heterocycles. NEW J CHEM 2021. [DOI: 10.1039/d1nj03572j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The preparation of heterocyclic compounds has attracted great attention in organic chemistry because of their extensive application in the field of bioactive molecules, materials science, and natural products.
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Affiliation(s)
| | | | - Narges Mohammadi
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
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17
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Adhikary S, Majumder L, Pakrashy S, Srinath R, Mukherjee K, Mandal C, Banerji B. Polysubstituted Imidazoles as LysoTracker Molecules: Their Synthesis via Iodine/H 2O and Cell-Imaging Studies. ACS OMEGA 2020; 5:14394-14407. [PMID: 32596577 PMCID: PMC7315425 DOI: 10.1021/acsomega.0c00934] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 03/31/2020] [Indexed: 05/07/2023]
Abstract
An iodine-catalyzed, environmentally benign one-pot methodology has been developed for the synthesis of diverse substituted imidazoles. This transition-metal-free, aerobic, water-mediated cyclization reaction is operationally simple and works well with different amines or aldehydes by multiple C-N bond formations with satisfactory yield. The methodology is regioselective as well as scalable. These imidazole derivatives show excellent fluorescence properties both in the solid and solution phase, which is further extended to live-cell imaging. Due to the suitable fluorescence properties of these scaffolds, lysosome-directing groups are incorporated in two of these derivatized imidazoles to track intracellular lysosomes. Successfully, those molecules show bright blue fluorescence while detecting lysosomes in human or murine cells and can be considered to be rapid lysosome-staining probes.
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Affiliation(s)
- Saswati Adhikary
- Organic
and Medicinal Chemistry Division, Indian
Institute of Chemical Biology (CSIR—IICB), 4 Raja S. C. Mullick Road, Kolkata 700032, India
| | - Leena Majumder
- Organic
and Medicinal Chemistry Division, Indian
Institute of Chemical Biology (CSIR—IICB), 4 Raja S. C. Mullick Road, Kolkata 700032, India
| | - Sourav Pakrashy
- Organic
and Medicinal Chemistry Division, Indian
Institute of Chemical Biology (CSIR—IICB), 4 Raja S. C. Mullick Road, Kolkata 700032, India
| | - Ravuri Srinath
- National
Institute of Pharmaceutical Education and Research (NIPER—Kolkata), Chunilal Bhawan, Maniktala, Kolkata 700054, India
| | - Kaustuv Mukherjee
- Cancer
Biology & Inflammatory Disorder Division, Indian Institute of Chemical Biology (CSIR—IICB), 4 Raja S. C. Mullick Road, Kolkata 700032, India
| | - Chitra Mandal
- Cancer
Biology & Inflammatory Disorder Division, Indian Institute of Chemical Biology (CSIR—IICB), 4 Raja S. C. Mullick Road, Kolkata 700032, India
| | - Biswadip Banerji
- Organic
and Medicinal Chemistry Division, Indian
Institute of Chemical Biology (CSIR—IICB), 4 Raja S. C. Mullick Road, Kolkata 700032, India
- Academy
of Scientific and Innovative Research (AcSIR), Indian Institute of Chemical Biology (CSIR—IICB), 4 Raja S. C. Mullick Road, Kolkata 700032, India
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18
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Zhang Y, Yang M, Jia C, Ji M. Iodine-Promoted Domino Oxidative Cyclization for the One-Pot Synthesis of Novel Fused Four-Ring Quinoxaline Fluorophores by sp 3 C-H Functionalization. Chemistry 2019; 25:13709-13713. [PMID: 31498477 DOI: 10.1002/chem.201903688] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/05/2019] [Indexed: 02/02/2023]
Abstract
A method for the synthesis of novel fused four-ring quinoxaline skeleton has been described by an I2 promoted sp3 C-H functionalization between 1,2,3,3-tetramethyl-3H-indolium iodides and 1,2-diamines. This transformation proceeds smoothly under metal- and peroxide-free conditions through a sequential iodination, oxidation, annulation and rearrangement. Moreover, 8,9-dichloro-5,12,12-trimethyl-2-(trifluoromethyl)-5,12-dihydroquinolino[2,3-b]quinoxaline showed good photophysical properties and was used in live cell imaging, indicating the potential value of this skeleton as a fluorophore in probes.
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Affiliation(s)
- Yong Zhang
- School of Biological Science and Medical Engineering, Southeast University, Dingjiaqiao 87, 210009, Nanjing, P. R. China
| | - Min Yang
- School of Biological Science and Medical Engineering, Southeast University, Dingjiaqiao 87, 210009, Nanjing, P. R. China
| | - Chengli Jia
- School of Biological Science and Medical Engineering, Southeast University, Dingjiaqiao 87, 210009, Nanjing, P. R. China
| | - Min Ji
- School of Biological Science and Medical Engineering, Southeast University, Dingjiaqiao 87, 210009, Nanjing, P. R. China
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19
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Kaiser D, Klose I, Oost R, Neuhaus J, Maulide N. Bond-Forming and -Breaking Reactions at Sulfur(IV): Sulfoxides, Sulfonium Salts, Sulfur Ylides, and Sulfinate Salts. Chem Rev 2019; 119:8701-8780. [PMID: 31243998 PMCID: PMC6661881 DOI: 10.1021/acs.chemrev.9b00111] [Citation(s) in RCA: 447] [Impact Index Per Article: 89.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Indexed: 12/13/2022]
Abstract
Organosulfur compounds have long played a vital role in organic chemistry and in the development of novel chemical structures and architectures. Prominent among these organosulfur compounds are those involving a sulfur(IV) center, which have been the subject of countless investigations over more than a hundred years. In addition to a long list of textbook sulfur-based reactions, there has been a sustained interest in the chemistry of organosulfur(IV) compounds in recent years. Of particular interest within organosulfur chemistry is the ease with which the synthetic chemist can effect a wide range of transformations through either bond formation or bond cleavage at sulfur. This review aims to cover the developments of the past decade in the chemistry of organic sulfur(IV) molecules and provide insight into both the wide range of reactions which critically rely on this versatile element and the diverse scaffolds that can thereby be synthesized.
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Affiliation(s)
- Daniel Kaiser
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Immo Klose
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Rik Oost
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - James Neuhaus
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Nuno Maulide
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
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20
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Zhang X, He Y, Li J, Wang R, Gu L, Li G. CO 2/Photoredox-Cocatalyzed Tandem Oxidative Cyclization of α-Bromo Ketones and Amines To Construct Substituted Oxazoles. J Org Chem 2019; 84:8225-8231. [PMID: 31117554 DOI: 10.1021/acs.joc.9b00283] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
CO2/photoredox-cocatalyzed tandem oxidative cyclization of α-bromo ketones and amines for the preparation of substituted oxazoles has been achieved. The avoidance of using both transition-metal catalysts and peroxides makes this method more sustainable and renewable.
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Affiliation(s)
- Xiaowei Zhang
- School of Chemistry and Environment , Yunnan Minzu University , Kunming , Yunnan 650500 , China
| | - Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming , Yunnan 650500 , China
| | - Jing Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming , Yunnan 650500 , China
| | - Rui Wang
- School of Chemistry and Environment , Yunnan Minzu University , Kunming , Yunnan 650500 , China
| | - Lijun Gu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming , Yunnan 650500 , China.,Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Guiyang 550025 , China
| | - Ganpeng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission & Ministry of Education , Yunnan Minzu University , Kunming , Yunnan 650500 , China
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21
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Zhang D, Song H, Cheng N, Liao WW. Synthesis of 2,4,5-Trisubstituted Oxazoles via Pd-Catalyzed C-H Addition to Nitriles/Cyclization Sequences. Org Lett 2019; 21:2745-2749. [PMID: 30931572 DOI: 10.1021/acs.orglett.9b00700] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A practical and flexible intermolecular protocol for the diverse synthesis of trisubstituted oxazole derivatives via a Pd-catalyzed direct C-H addition of electronic-rich heteroarenes to O-acyl cyanohydrins bearing an α-hydrogen/cyclization sequence is described. A wide range of trisubstituted oxazoles can be prepared from readily available starting materials in good to high yields with high efficiency under redox neutral reaction conditions.
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Affiliation(s)
- Di Zhang
- Department of Organic Chemistry, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Hao Song
- Department of Organic Chemistry, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Na Cheng
- Department of Organic Chemistry, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Wei-Wei Liao
- Department of Organic Chemistry, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
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22
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Banerji B, Adhikary S, Majumder L, Ghosh S. A Green Synthetic Approach towards Polyarylated Oxazoles via Iodine‐Catalyzed One‐Pot sp
3
C−H Functionalization in Water: From Natural Product Synthesis To Photophysical Studies. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201800742] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Biswadip Banerji
- Organic and Medicinal Chemistry DivisionIndian Institute of Chemical Biology (CSIR-IICB) 4 Raja S. C. Mullick Road Kolkata 700032 India
- Academy of Scientific and Innovative Research (AcSIR)Indian Institute of Chemical Biology (CSIR-IICB) 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Saswati Adhikary
- Organic and Medicinal Chemistry DivisionIndian Institute of Chemical Biology (CSIR-IICB) 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Leena Majumder
- Organic and Medicinal Chemistry DivisionIndian Institute of Chemical Biology (CSIR-IICB) 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Saswati Ghosh
- Organic and Medicinal Chemistry DivisionIndian Institute of Chemical Biology (CSIR-IICB) 4 Raja S. C. Mullick Road Kolkata 700032 India
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23
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Dey A, Hajra A. Metal-Free Synthesis of 2-Arylbenzothiazoles from Aldehydes, Amines, and Thiocyanate. Org Lett 2019; 21:1686-1689. [DOI: 10.1021/acs.orglett.9b00245] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amrita Dey
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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24
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Cao Z, Lv H, Liu Y, Nie Z, Liu H, Yang T, Luo W, Liu Q, Guo C. Dimethyl Sulfoxide Oxygen Donor‐Based Annulation of Ketones and Ammonium Persulfate: Regioselective Synthesis of 2,4‐disubstituted Oxazoles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801671] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhongzhong Cao
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Huifang Lv
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Yufeng Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Zhiwen Nie
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Haiping Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Tonglin Yang
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Weiping Luo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Qiang Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
| | - Cancheng Guo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of EducationHunan University Changsha 410082 People's Republic of China
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25
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Rahim A, Shaik SP, Baig MF, Alarifi A, Kamal A. Iodine mediated oxidative cross-coupling of unprotected anilines and heteroarylation of benzothiazoles with 2-methylquinoline. Org Biomol Chem 2019; 16:635-644. [PMID: 29303199 DOI: 10.1039/c7ob02241g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Iodine-promoted oxidative C-H/C-H cross-coupling of unprotected anilines and 2-methylquinoline to furnish C4-carbonylated aniline (4-aminophenyl)(quinoline-2-yl) methanones in moderate to good yields has been demonstrated. This work provides the first site-selective approach for the synthesis of free amino groups containing methanones including unprecedented C-H functionalization rather than the N-H functionalization of unprotected anilines via the Kornblum oxidation of 2-methylquinoline. Furthermore, we noticed that the incorporation of KOH under standard conditions provides 2-heteroarylbenzothiazoles from benzothiazoles and 2-methylquinoline in good to excellent yields. These transformations do not require any transition metals or peroxides and tolerate various functional groups such as methoxy, hydroxy, bromo, chloro and nitro groups. Moreover, a plausible mechanistic pathway is proposed.
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Affiliation(s)
- Abdul Rahim
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad-500007, India.
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26
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Xing Q, Ma Y, Xie H, Xiao F, Zhang F, Deng GJ. Iron-Promoted Three-Component 2-Substituted Benzothiazole Formation via Nitroarene ortho-C–H Sulfuration with Elemental Sulfur. J Org Chem 2019; 84:1238-1246. [DOI: 10.1021/acs.joc.8b02619] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Qiaoyan Xing
- 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 411105, China
| | - 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 411105, China
| | - Hao Xie
- 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 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 411105, China
| | - Feng Zhang
- 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 411105, China
- College of Science, Hunan Agricultural University, Changsha 410128, 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 411105, China
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27
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Liu L, Tan C, Fan R, Wang Z, Du H, Xu K, Tan J. I2/TBHP-Mediated tandem cyclization and oxidation reaction: Facile access to 2-substituted thiazoles and benzothiazoles. Org Biomol Chem 2019; 17:252-256. [DOI: 10.1039/c8ob02826e] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The efficient synthesis of 2-substituted thiazoles and benzothiazoles has been accomplished employing readily available cysteine esters and 2-aminobenzenethiols as N and S sources.
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Affiliation(s)
- Li Liu
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Chen Tan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Rong Fan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Zihan Wang
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Hongguang Du
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Kun Xu
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang
- P. R. China
| | - Jiajing Tan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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28
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Wang C, Geng X, Zhao P, Zhou Y, Wu YD, Wu AX. Employing thiocyanate salts as a nitrogen source via CN bond cleavage: divergent synthesis of α-ketoamides and 2-acyloxazoles. Org Chem Front 2019. [DOI: 10.1039/c9qo00570f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A switchable procedure for the synthesis of α-ketoamides and 2-acyloxazoles from aryl methyl ketones and thiocyanate salts is reported.
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Affiliation(s)
- Can Wang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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29
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Liu C, Zhao J, Qiao Y, Huang W, Rao Z, Gu Y. Selective synthesis of oxazoles and pyrazines from α-bromo-1-phenylethanone using a by-product-promoted strategy. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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30
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Das DK, Kumar Pampana VK, Hwang KC. Copper catalyzed photoredox synthesis of α-keto esters, quinoxaline, and naphthoquinone: controlled oxidation of terminal alkynes to glyoxals. Chem Sci 2018; 9:7318-7326. [PMID: 30294421 PMCID: PMC6167948 DOI: 10.1039/c8sc03447h] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 08/28/2018] [Indexed: 12/17/2022] Open
Abstract
Controlled oxidation of the terminal C
Created by potrace 1.16, written by Peter Selinger 2001-2019
]]>
C triple bond using O2 (1 atm) as an oxidant and reagent.
Herein, we report a facile visible light induced copper catalyzed controlled oxidation of terminal C
Created by potrace 1.16, written by Peter Selinger 2001-2019
]]>
C alkynes to α-keto esters and quinoxalines via formation of phenylglyoxals as stable intermediates, under mild conditions by using molecular O2 as a sustainable oxidant. The current copper catalysed photoredox method is simple, highly functional group compatible with a broad range of electron rich and electron poor aromatic alkynes as well as aliphatic alcohols (1°, 2° and 3° alcohols), providing an efficient route for the preparation of α-keto esters (43 examples), quinoxaline and naphthoquinone with higher yields than those in the literature reported thermal processes. Furthermore, the synthetic utility of the products has been demonstrated in the synthesis of two biologically active molecules, an E. coli DHPS inhibitor and CFTR activator, using the current photoredox process. In addition, we applied this methodology to the one-pot synthesis of a heterocyclic compound (quinoxaline, an FLT3 inhibitor) by trapping the intermediate phenylglyoxal with O-phenylenediamine. The intermediate phenylglyoxal can also be isolated and further reacted with an internal alkyne to form naphthoquinone. This process can be readily scaled up to the gram scale.
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Affiliation(s)
- Deb Kumar Das
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
| | - V Kishore Kumar Pampana
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
| | - Kuo Chu Hwang
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
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31
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Bai H, Sun R, Chen X, Yang L, Huang C. Microwave-Assisted, Solvent-Free, Three-Component Domino Protocol: Efficient Synthesis of Polysubstituted-2-Pyridone Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201800606] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hairui Bai
- Engineering Research Center of Biopolymer Functional Materials of Yunnan; School of Chemistry and Environment; Yunnan Minzu University, Kunming; 650500, P. R. China
| | - Rongrong Sun
- Engineering Research Center of Biopolymer Functional Materials of Yunnan; School of Chemistry and Environment; Yunnan Minzu University, Kunming; 650500, P. R. China
| | - Xuebing Chen
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan; School of Science; Honghe University, Mengzi; 661100, P. R. China
| | - Lijuan Yang
- Engineering Research Center of Biopolymer Functional Materials of Yunnan; School of Chemistry and Environment; Yunnan Minzu University, Kunming; 650500, P. R. China
| | - Chao Huang
- Engineering Research Center of Biopolymer Functional Materials of Yunnan; School of Chemistry and Environment; Yunnan Minzu University, Kunming; 650500, P. R. China
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32
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Yang X, Guo X, Qin M, Yuan X, Jing H, Chen B. Metal-free iodine(iii)-promoted synthesis of 2,5-diaryloxazoles. Org Biomol Chem 2018; 16:3104-3108. [PMID: 29645044 DOI: 10.1039/c8ob00401c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A nonmetal-catalyzed oxidative cyclization to achieve 2,5-disubstituted oxazoles from inexpensive and readily available substituted chalcone, (diacetoxyiodo)benzene (PIDA) and ammonium acetate (NH4OAc) at room temperature is described. The reaction forms a variety of 2,5-diaryloxazoles in good to excellent yields with broad substrate scope under mild conditions without the requirement of ligands and additional bases.
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Affiliation(s)
- Xueying Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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33
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Weng Y, Lv W, Yu J, Ge B, Cheng G. Preparation of 2,4,5-Trisubstituted Oxazoles through Iodine-mediated Aerobic Oxidative Cyclization of Enaminones. Org Lett 2018; 20:1853-1856. [DOI: 10.1021/acs.orglett.8b00376] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yunxiang Weng
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Weiwei Lv
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Jia Yu
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Bailu Ge
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Guolin Cheng
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
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34
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Gao Q, He S, Wu X, Zhang J, Bai S, Wu Y, Wu A. Selective access to dipyrazolo-fused pyridines via formal [3 + 2 + 1] heteroannulation of methyl ketones with pyrazol-5-amines. Org Chem Front 2018. [DOI: 10.1039/c7qo00941k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A fascinating new form of the Hantzsch reaction with methyl ketones and pyrazol-5-amines for the selective synthesis of dipyrazolo-fused pyridines has been discovered.
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Affiliation(s)
- Qinghe Gao
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
- Key Laboratory of Pesticide & Chemical Biology
| | - Shuang He
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Suping Bai
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Yandong Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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35
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Zhang F, Wang J, Zhang X, Meng X, Chen B. A Regioselective Synthesis of 2,5-Diaryl Oxazoles via TsOH/I2
-Mediated Cascade Cyclization. ChemistrySelect 2017. [DOI: 10.1002/slct.201701390] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fangdong Zhang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Lanzhou 730000 P. R. of China
| | - Jing Wang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Lanzhou 730000 P. R. of China
| | - Xueguo Zhang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Lanzhou 730000 P. R. of China
| | - 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. of China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; Lanzhou 730000 P. R. of China
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36
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Che X, Jiang J, Xiao F, Huang H, Deng GJ. Assembly of 2-Arylbenzothiazoles through Three-Component Oxidative Annulation under Transition-Metal-Free Conditions. Org Lett 2017; 19:4576-4579. [DOI: 10.1021/acs.orglett.7b02168] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xingzong Che
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jingjing Jiang
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Fuhong Xiao
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Huawen Huang
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Beijing
National Laboratory for Molecular Sciences and CAS Key Laboratory
of Molecular Recognition and Function Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
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37
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Zhou RR, Cai Q, Li DK, Zhuang SY, Wu YD, Wu AX. Acid-Promoted Multicomponent Tandem Cyclization to Synthesize Fully Substituted Oxazoles via Robinson–Gabriel-Type Reaction. J Org Chem 2017; 82:6450-6456. [DOI: 10.1021/acs.joc.7b00763] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Rong-Rong Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Qun Cai
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Deng-Kui Li
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Shi-Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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38
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Yagyu T, Takemoto Y, Yoshimura A, Zhdankin VV, Saito A. Iodine(III)-Catalyzed Formal [2 + 2 + 1] Cycloaddition Reaction for Metal-Free Construction of Oxazoles. Org Lett 2017; 19:2506-2509. [DOI: 10.1021/acs.orglett.7b00742] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takuma Yagyu
- Division
of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan, and
| | - Yusuke Takemoto
- Division
of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan, and
| | - Akira Yoshimura
- Department
of Chemistry and Biochemistry, University of Minnesota, Duluth, Minnesota 55812 United States
| | - Viktor V. Zhdankin
- Department
of Chemistry and Biochemistry, University of Minnesota, Duluth, Minnesota 55812 United States
| | - Akio Saito
- Division
of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan, and
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39
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Ohura A, Itoh T, Ishida H, Saito A, Yamamoto K. Three-Component Regioselective Synthesis of Tetrahydrofuro[2,3-d]oxazoles and Their Efficient Conversion to Oxazoles. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700074] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Arisa Ohura
- Laboratory of Drug Design and Medicinal Chemistry; Showa Pharmaceutical University; 3-3165 Higashi-Tamagawagakuen, Machida Tokyo 194-8543 Japan
| | - Toshimasa Itoh
- Laboratory of Drug Design and Medicinal Chemistry; Showa Pharmaceutical University; 3-3165 Higashi-Tamagawagakuen, Machida Tokyo 194-8543 Japan
| | - Hiroaki Ishida
- Laboratory of Drug Design and Medicinal Chemistry; Showa Pharmaceutical University; 3-3165 Higashi-Tamagawagakuen, Machida Tokyo 194-8543 Japan
| | - Akio Saito
- Division of Applied Chemistry, Institute of Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Naka-cho, Koganei Tokyo 184-8588 Japan
| | - Keiko Yamamoto
- Laboratory of Drug Design and Medicinal Chemistry; Showa Pharmaceutical University; 3-3165 Higashi-Tamagawagakuen, Machida Tokyo 194-8543 Japan
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Liu W, Tan H, Chen C, Pan Y. A Method to Access Symmetrical Tetrasubstituted Pyridines via Iodine and Ammonium Persulfate Mediated [2+2+1+1]-Cycloaddition Reaction. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601225] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Weibing Liu
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 People's Republic of China
| | - Hua Tan
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 People's Republic of China
| | - Cui Chen
- College of Chemical Engineering; Guangdong University of Petrochemical Technology; 2 Guandu Road Maoming 525000 People's Republic of China
| | - Yupeng Pan
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 People's Republic of China
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42
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Ren ZL, Guan ZR, Kong HH, Ding MW. Multifunctional odorless isocyano(triphenylphosphoranylidene)-acetates: synthesis and direct one-pot four-component Ugi/Wittig cyclization to multisubstituted oxazoles. Org Chem Front 2017. [DOI: 10.1039/c7qo00490g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new one-step four-component synthesis of multisubstituted oxazoles has been developed.
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Affiliation(s)
- Zhi-Lin Ren
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education
- Central China Normal University
- Wuhan
- P. R. China
| | - Zhi-Rong Guan
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education
- Central China Normal University
- Wuhan
- P. R. China
| | - Han-Han Kong
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education
- Central China Normal University
- Wuhan
- P. R. China
| | - Ming-Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education
- Central China Normal University
- Wuhan
- P. R. China
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43
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Chatterjee T, Cho JY, Cho EJ. Synthesis of Substituted Oxazoles by Visible-Light Photocatalysis. J Org Chem 2016; 81:6995-7000. [DOI: 10.1021/acs.joc.6b00989] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Tanmay Chatterjee
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Ji Young Cho
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Eun Jin Cho
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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44
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Prabagar B, Nayak S, Prasad R, Sahoo AK. Dimethyl Sulfoxide and N-Iodosuccinimide Promoted 5-exo-dig Oxidative Cyclization of Yne-Tethered Ynamide: Access to Pyrrolidones and Spiro-pyrrolidones. Org Lett 2016; 18:3066-9. [DOI: 10.1021/acs.orglett.6b01149] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- B. Prabagar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Sanatan Nayak
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Rangu Prasad
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Akhila K. Sahoo
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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45
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Wu X, Gao Q, Geng X, Zhang J, Wu YD, Wu AX. Iodine-Promoted Oxidative Cross-Coupling of Unprotected Anilines with Methyl Ketones: A Site-Selective Direct C–H Bond Functionalization to C4-Dicarbonylation of Anilines. Org Lett 2016; 18:2507-10. [DOI: 10.1021/acs.orglett.6b01162] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yan-dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - An-xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
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46
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Zhang J, Gao Q, Wu X, Geng X, Wu YD, Wu A. Dual Roles of Methyl Ketones in Radziszewski-Type Reaction: Formal [2 + 1 + 1 + 1] Synthesis of 1,2,5-Trisubstituted Imidazoles. Org Lett 2016; 18:1686-9. [DOI: 10.1021/acs.orglett.6b00607] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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Wu X, Zhang J, Liu S, Gao Q, Wu A. An Efficient Synthesis of Polysubstituted Pyridines
via
CH Oxidation and CS Cleavage of Dimethyl Sulfoxide. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500683] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Shan Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China, Fax: (+86)‐027‐6786‐7773; phone: (+86)‐027‐6786‐7773
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Ibrar A, Khan I, Abbas N, Farooq U, Khan A. Transition-metal-free synthesis of oxazoles: valuable structural fragments in drug discovery. RSC Adv 2016. [DOI: 10.1039/c6ra19324b] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
This review article encapsulates the recent developments in the metal-free approaches used to construct oxazole moiety.
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Affiliation(s)
- Aliya Ibrar
- Department of Chemistry
- COMSATS Institute of Information Technology
- Abbottabad-22060
- Pakistan
| | - Imtiaz Khan
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
| | - Naeem Abbas
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
| | - Umar Farooq
- Department of Chemistry
- COMSATS Institute of Information Technology
- Abbottabad-22060
- Pakistan
| | - Ajmal Khan
- Department of Chemistry
- COMSATS Institute of Information Technology
- Abbottabad-22060
- Pakistan
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50
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A convenient strategy to 2,4,5-triaryl and 2-alkyl-4,5-diaryl oxazole derivatives through silver-mediated oxidative C O cross coupling/cyclization. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.103] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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