1
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Zang J, Peters F, Cambet Y, Cifuentes-Pagano E, Hissabu MMS, Dustin CM, Svensson LH, Olesen MM, Poulsen MFL, Jacobsen S, Tuelung PS, Narayanan D, Langkilde AE, Gajhede M, Pagano PJ, Jaquet V, Vilhardt F, Bach A. Targeting NOX2 with Bivalent Small-Molecule p47phox-p22phox Inhibitors. J Med Chem 2023; 66:14963-15005. [PMID: 37857466 DOI: 10.1021/acs.jmedchem.3c01548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Nicotinamide adenine dinucleotide phosphate oxidase isoform 2 (NOX2) is an enzymatic complex whose function is the regulated generation of reactive oxygen species (ROS). NOX2 activity is central to redox signaling events and antibacterial response, but excessive ROS production by NOX2 leads to oxidative stress and inflammation in a range of diseases. The protein-protein interaction between the NOX2 subunits p47phox and p22phox is essential for NOX2 activation, thus p47phox is a potential drug target. Previously, we identified 2-aminoquinoline as a fragment hit toward p47phoxSH3A-B and converted it to a bivalent small-molecule p47phox-p22phox inhibitor (Ki = 20 μM). Here, we systematically optimized the bivalent compounds by exploring linker types and positioning as well as substituents on the 2-aminoquinoline part and characterized the bivalent binding mode with biophysical methods. We identified several compounds with submicromolar binding affinities and cellular activity and thereby demonstrated that p47phox can be targeted by potent small molecules.
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Affiliation(s)
- Jie Zang
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Felix Peters
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Yves Cambet
- READS unit, Centre Médical Universitaire, University of Geneva, Geneva CH-1211, Switzerland
| | - Eugenia Cifuentes-Pagano
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Department of Pharmacology and ChemicalBiology, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Munira Mohamed Shishay Hissabu
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Christopher M Dustin
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Department of Pharmacology and ChemicalBiology, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Lars Henrik Svensson
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Martin Mariboe Olesen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Mathias Feldt Lomholt Poulsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Stig Jacobsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Pernille Sønderby Tuelung
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Dilip Narayanan
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Annette Eva Langkilde
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Michael Gajhede
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Patrick J Pagano
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Department of Pharmacology and ChemicalBiology, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Vincent Jaquet
- READS unit, Centre Médical Universitaire, University of Geneva, Geneva CH-1211, Switzerland
- Department of Pathology and Immunology, Centre Médical Universitaire, University of Geneva, Geneva CH-1211, Switzerland
| | - Frederik Vilhardt
- Institute of Cellular and Molecular Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark
| | - Anders Bach
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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2
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Kim DK, Keum M, Yun H, Kim I, Joo JM, Lee C. Carbofunctionalization of Terminal Alkynes via Rhodium Catalysis Enabling Formations of Four Different Bonds. Org Lett 2023; 25:2024-2029. [PMID: 36930814 DOI: 10.1021/acs.orglett.3c00341] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
Described here is the oxygenative carbofunctionalization of terminal alkynes mediated by combined rhodium catalysis that enables regioselective quadruple formation of C-C, C-H, C-O, and C-heteroatom bonds. Mechanistic studies suggest that a disubstituted rhodium vinylidene complex is generated upon C-C bond formation at the terminal alkyne with tethered electrophiles such as alkyl halides, aldehydes, imines, and Michael acceptors. Subsequent intermolecular transfer oxygenation of the rhodium vinylidene with pyridine N-oxide generates a rhodium-complexed ketene intermediate that reacts with a variety of heteroatom nucleophiles to give rise to cyclic carboxylic acid derivatives.
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Affiliation(s)
- Dae-Kwon Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Minjung Keum
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Heekyung Yun
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Insu Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jung Min Joo
- Department of Chemistry, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Chulbom Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
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3
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Zhou C, Li C, Zheng Y, Huang X. Regulation, genomics, and clinical characteristics of cuproptosis regulators in pan-cancer. Front Oncol 2022; 12:934076. [PMID: 36387247 PMCID: PMC9647015 DOI: 10.3389/fonc.2022.934076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 10/10/2022] [Indexed: 11/23/2022] Open
Abstract
Background Cuproptosis, a copper-dependent controlled cell death, is a novel form of cell death that differs from known cell death mechanisms; however, its overall regulation in cancer remains elusive. Methods Multiple open-source bioinformatic platforms were used to comprehensively elucidate the expression levels, prognostic efficiency, potential biological functions, genomic and epigenetic characteristics, immune microenvironment, and drug sensitivity of cuproptosis regulators (ATP7A, ATP7B, DLAT, DLD, FDX1, GLS, LIAS, LIPT1, MTF1, NLRP3, PDHA1, PDHB, and SLC31A1) in pan-cancer. Results Cuproptosis-related genes (CRGs) were upregulated in most cancers tested. In KIRC, KIRP, LGG, MESO, and PCPG, most highly expressed CRGs predicted a better prognosis but poorer prognosis in patients with ACC, LIHC, and UCEC. Pathway analysis confirmed that cuproptosis regulators were associated with the metabolism-related pathways. The expression of MTF1, NLRP3, and SLC31A1 was positively related with ImmuneScore, StromalScore, and ESTIMATEScore in almost all types of tumor, whereas ATP7B, DLAT, DLD, LIAS, PDHA1, and PDHB were significantly negatively correlated with the scores. In addition, CRGs were significantly correlated with RNA stemness score, DNA stemness score, microsatellite instability, and tumor mutational burden. The expression of ATP7A, ATP7B, LIAS, and DLAT was significantly positively correlated with the drug sensitivity of Docetaxel. ATP7A, LIAS, and FDX1 were significantly negatively correlated with the drug sensitivity of UNC0638, XMD13−2, YM201636, and KIN001−260. Conclusions The altered genomic and clinical characteristics of cuproptosis regulators were comprehensively elucidated, providing a preliminary basis for understanding the functions of cuproptosis in pan-cancer.
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Affiliation(s)
- Cankun Zhou
- Department of Gynecology, Southern Medical University Affiliated Maternal and Child Health Hospital of Foshan, Foshan, Guangdong, China
| | - Chaomei Li
- Department of Maternity Centre, Southern Medical University Affiliated Maternal and Child Health Hospital of Foshan, Foshan, Guangdong, China
| | - Yuhua Zheng
- Department of Gynecology, Southern Medical University Affiliated Maternal and Child Health Hospital of Foshan, Foshan, Guangdong, China
- *Correspondence: Yuhua Zheng, ; Xiaobin Huang,
| | - Xiaobin Huang
- Department of Gynecology, Southern Medical University Affiliated Maternal and Child Health Hospital of Foshan, Foshan, Guangdong, China
- *Correspondence: Yuhua Zheng, ; Xiaobin Huang,
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4
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Rivera G, De Angelis L, Al-Sayyed A, Biswas S, Arman H, Doyle MP. Synthesis of 1,2,3-Triazine Derivatives by Deoxygenation of 1,2,3-Triazine 1-Oxides. Org Lett 2022; 24:6543-6547. [PMID: 36054906 DOI: 10.1021/acs.orglett.2c02484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convenient, efficient, and inexpensive method has been developed for the synthesis of 1,2,3-triazine derivatives via deoxygenation of 1,2,3-triazine 1-oxide using trialkyl phosphites. Triethyl phosphite is more reactive than trimethyl phosphite, and both phosphites form their corresponding phosphates in these reactions. This procedure provides a range of aromatic and aliphatic substituted 1,2,3-triazine-4-carboxylate derivatives cleanly in high yields. Unexpected 1,2,4-triazine derivatives were also obtained as minor products during deoxygenation of 1,2,3-triazine-4-carboxylate 1-oxides having an aliphatic substituent at the 5-position.
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Affiliation(s)
- Gildardo Rivera
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States.,Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, 88710 Reynosa, México
| | - Luca De Angelis
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Ammar Al-Sayyed
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Soumen Biswas
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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5
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Teerasong S, Praditweangkum W, Chompoosor A. A new mechanism for resonance Rayleigh scattering detection of minoxidil based on catalytic oxidation of silver nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 275:121147. [PMID: 35306307 DOI: 10.1016/j.saa.2022.121147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/03/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
This work presents a new method for minoxidil detection based on silver nanoparticle (AgNP) oxidation. Minoxidil, which is a pyrimidine N-oxide, can be reduced to its corresponding pyrimidine via a redox reaction. In this system, acetate buffer serves as a proton source. AgNPs act as electron donors that contribute electrons to the reaction, producing Ag+. Consequently, the sizes and numbers of AgNPs in the system decrease, which results in a decline in their resonance Rayleigh scattering (RRS). By monitoring the RRS intensity at 409 nm, a change in intensity was linearly related to the minoxidil concentration over a concentration range of 0.5 - 5.0 mM. The detection limit was 0.35 mM. This approach is simple and rapid. It is done by directly mixing the drug and AgNPs in an acidic buffer. The reaction was completed within 2 min. This proposed method was successfully utilized for quantification of minoxidil in topical hair-growth formulations.
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Affiliation(s)
- Saowapak Teerasong
- Department of Chemistry and Applied Analytical Chemistry Research Unit, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand; Flow Innovation-Research for Science and Technology Laboratories (FIRST Labs), Thailand.
| | - Wiboon Praditweangkum
- Department of Chemistry and Applied Analytical Chemistry Research Unit, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Apiwat Chompoosor
- Department of Chemistry, Faculty of Science, Ramkhamhaeng University, Bangkok 10240, Thailand
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6
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Ruan M, Chen L, Wen Z, Yang F, Ma C, Lu C, Yang G, Gao M. Electrochemical two-electron oxygen reduction reaction (ORR) induced aerobic oxidation of α-diazoesters. Chem Commun (Camb) 2022; 58:2168-2171. [PMID: 35060985 DOI: 10.1039/d1cc06945d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Electrochemical oxygen reduction reaction (ORR) is a powerful tool for introducing oxygen functional groups in synthetic chemistry. However, compared with the well-developed one-electron oxygen reduction process, the applications of two-electron oxygen reduction in electrochemical synthesis have been seldom studied. We present herein our recent progress in the oxidation of α-diazoesters to α-ketoesters by in situ generated hydrogen peroxide via a two-electron oxygen reduction approach. A diverse collection of valuable α-ketoester products was obtained with moderate to high yields under an exogenous-oxidant-free and metal catalyst-free electrochemical conditions.
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Affiliation(s)
- Mengyao Ruan
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, 430062, P. R. China.
| | - Liang Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, 430062, P. R. China.
| | - Ziyang Wen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, 430062, P. R. China.
| | - Fan Yang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, 430062, P. R. China.
| | - Chao Ma
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, 430062, P. R. China.
| | - Cuifen Lu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, 430062, P. R. China.
| | - Guichun Yang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, 430062, P. R. China.
| | - Meng Gao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, 430062, P. R. China.
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7
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Wu X, Gao W, Zhou Y, Liu M, Wu H. Tris(pentafluorophenyl)borane‐Catalyzed Oxygen Insertion Reaction of
α
‐Diazoesters (α‐Diazoamides) with Dimethyl Sulfoxide. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiao‐Yang Wu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Wen‐Xia Gao
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Yun‐Bing Zhou
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Miao‐Chang Liu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
| | - Hua‐Yue Wu
- College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 People's Republic of China
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8
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Wan Y, Zhu Y, Peng H, Deng G. Preparation of 4-(Nitromethyl)furan Derivatives and Their Application in the Syntheses of Bis(furan-2-yl)oximes. J Org Chem 2021; 87:281-293. [PMID: 34902975 DOI: 10.1021/acs.joc.1c02359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient method for the preparation of tetrasubstituted furans, which contains a nitromethyl group at the 4-position, has been developed. The applications of 4-(nitromethyl)furans on the synthesis of highly functionalized bis(furyl)oxime were explored for the first time.
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Affiliation(s)
- Yinbo Wan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Yang Zhu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Haiyun Peng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Guisheng Deng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
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9
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Roy S, Kumar G, Chatterjee I. Photoinduced Diverse Reactivity of Diazo Compounds with Nitrosoarenes. Org Lett 2021; 23:6709-6713. [PMID: 34474577 DOI: 10.1021/acs.orglett.1c02279] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A diverse reactivity of diazo compounds with nitrosoarene in an oxygen-transfer process and a formal [2 + 2] cycloaddition is reported. Nitosoarene has been exploited as a mild oxygen source to oxidize an in situ generated carbene intermediate under visible-light irradiation. UV-light-mediated in situ generated ketenes react with nitosoarenes to deliver oxazetidine derivatives. These operationally simple processes exemplify a transition-metal-free and catalyst-free protocol to give structurally diverse α-ketoesters or oxazetidines.
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Affiliation(s)
- Sourav Roy
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
| | - Gourav Kumar
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
| | - Indranil Chatterjee
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India
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10
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Zhao R, Teng J, Wang Z, Dong W, Lin J, Chu C. Copper on charcoal: Cu 0 nanoparticle catalysed aerobic oxidation of α-diazo esters. Org Biomol Chem 2021; 19:6120-6126. [PMID: 34179916 DOI: 10.1039/d1ob00811k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By using a charcoal supported nano Cu0 catalyst (Cu/C), a highly efficient oxidation of α-diazo esters to α-ketoesters with molecular oxygen as the sole oxidant has been developed. In the presence of the Cu/C catalyst, 2-aryl-α-diazo esters with both electron-donating and electron-withdrawing groups can be oxidized to the corresponding α-ketoesters efficiently. Furthermore, this Cu/C catalyst can catalyse the reaction of aryl α-diazo ester with water to form aryl ketoester, 2-aryl-2-hydroxyl acetate ester and 2-aryl acetate ester. In this case, water is split by α-diazo ester, and the diazo group is displaced by the oxygen or hydrogen atom in water. Mechanistic investigation showed that the reaction of α-diazo ester with oxygen proceeds through a radical pathway. In the presence of 2,2,6,6-tetramethyl piperidine nitrogen oxide, the reaction of α-diazo ester with oxygen is dramatically inhibited. Furthermore, the reaction of α-diazo ester with water is investigated by an isotopic tracer method, and GCMS detection showed that a disproportionation reaction occurred between α-diazo ester and water.
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Affiliation(s)
- Rong Zhao
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Jiangge Teng
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Zhiwei Wang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Wenwen Dong
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Jia Lin
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Changhu Chu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
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11
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Bera S, Biswas A, Samanta R. Straightforward Construction and Functionalizations of Nitrogen-Containing Heterocycles Through Migratory Insertion of Metal-Carbenes/Nitrenes. CHEM REC 2021; 21:3411-3428. [PMID: 33913245 DOI: 10.1002/tcr.202100061] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 12/15/2022]
Abstract
Nitrogen-containing heterocycles are widely found in various biologically active substrates, pharmaceuticals, natural products and organic materials. Consequently, the continuous effort has been devoted towards the development of straightforward, economical, environmentally acceptable, efficient and ingenious methods for the synthesis of various N-containing heterocycles and their functionalizations. Arguably, one of the most prominent direct strategy is regioselective C-H bond functionalizations which provide the step and atom economical approaches in the presence of suitable coupling partners. In this context, site-selective migratory insertion of metal carbenes/nitrenes to the desired C-H bonds has proven as a useful tool to access various functionalized nitrogen heterocycles. In this personal account, we highlight some of our contemporary development toward constructing N-containing heterocycles and their direct functionalizations via transition metal catalysed C-H bond functionalizations based on migratory insertion of metal-carbenes and nitrenes.
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Affiliation(s)
- Satabdi Bera
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Aniruddha Biswas
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Rajarshi Samanta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
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12
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An JH, Kim KD, Lee JH. Highly Chemoselective Deoxygenation of N-Heterocyclic N-Oxides Using Hantzsch Esters as Mild Reducing Agents. J Org Chem 2021; 86:2876-2894. [DOI: 10.1021/acs.joc.0c02805] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ju Hyeon An
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju Campus, Gyeongju 38066, Republic of Korea
| | - Kyu Dong Kim
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju Campus, Gyeongju 38066, Republic of Korea
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju Campus, Gyeongju 38066, Republic of Korea
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13
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Liu R, Liu Q, Meng H, Ding H, Hao J, Ji Z, Yue H, Wei W. Metal-free visible-light-induced aerobic oxidation of α-diazoesters leading to α-ketoesters in air. Org Chem Front 2021. [DOI: 10.1039/d0qo01587c] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A metal-free and visible-light-induced strategy has been established for the construction of α-ketoesters via aerobic oxidation of α-diazoesters with dioxygen in air at room temperature.
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Affiliation(s)
- Ruisheng Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Qishun Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Haoran Meng
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Hongyu Ding
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Jindong Hao
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Zhongyin Ji
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Qinghai 810008
- China
| | - Wei Wei
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
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14
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Kim SH, An JH, Lee JH. Highly chemoselective deoxygenation of N-heterocyclic N-oxides under transition metal-free conditions. Org Biomol Chem 2021; 19:3735-3742. [PMID: 33908554 DOI: 10.1039/d1ob00260k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Because their site-selective C-H functionalizations are now considered one of the most useful tools for synthesizing various N-heterocyclic compounds, the highly chemoselective deoxygenation of densely functionalized N-heterocyclic N-oxides has received much attention from the synthetic chemistry community. Here, we provide a protocol for the highly chemoselective deoxygenation of various functionalized N-oxides under visible light-mediated photoredox conditions with Na2-eosin Y as an organophotocatalyst. Mechanistic studies imply that the excited state of the organophotocatalyst is reductively quenched by Hantzsch esters. This operationally simple technique tolerates a wide range of functional groups and allows high-yield, multigram-scale deoxygenation.
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Affiliation(s)
- Se Hyun Kim
- Department of Advanced Materials Chemistry, Dongguk University Gyeongju Campus, Gyeongju 38066, Republic of Korea.
| | - Ju Hyeon An
- Department of Advanced Materials Chemistry, Dongguk University Gyeongju Campus, Gyeongju 38066, Republic of Korea.
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University Gyeongju Campus, Gyeongju 38066, Republic of Korea.
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15
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Varlet T, Masson G. Enamides and dienamides in phosphoric acid-catalysed enantioselective cycloadditions for the synthesis of chiral amines. Chem Commun (Camb) 2021; 57:4089-4105. [DOI: 10.1039/d1cc00590a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This feature article describes how enamides and dienamides can participate in chiral phosphoric acid catalyzed enantioselective cycloadditions to prepare a wide range of cyclic amines.
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Affiliation(s)
- Thomas Varlet
- Université Paris-Saclay
- Institut de Chimie des Substances Naturelles
- ICSN-CNRS UPR 2301
- 91198 Gif-sur-Yvette
- France
| | - Géraldine Masson
- Université Paris-Saclay
- Institut de Chimie des Substances Naturelles
- ICSN-CNRS UPR 2301
- 91198 Gif-sur-Yvette
- France
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16
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Lin Z, Qian J, Lu P, Wang Y. Syntheses of 2-Iminoindolin-3-ones and 2-Alknyl-2,3-dihydroquinazolin-4(1 H)-ones from 3-Diazoindolin-2-imines. J Org Chem 2020; 85:11766-11777. [PMID: 32842736 DOI: 10.1021/acs.joc.0c01548] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
3-Diazoindolin-2-imines reacted with nitrones to furnish 2-iminoindolin-3-ones through a Au(I)-catalyzed cascade oxygen transfer/imine exchange process. The prepared 2-iminoindolin-3-ones could be further transformed into 2-alknyl-2,3-dihydroquinazolin-4(1H)-ones through a Ag(I)-catalyzed reaction with terminal alkynes. A MeOH-triggered ring expansion mechanism involving cyclic iminium formation and nucleophilic addition is proposed for this novel alkynylation reaction. This two-step procedure provides a general and convenient approach to 2-alknyl-2,3-dihydroquinazolin-4(1H)-ones, which are privileged structures in medicinal chemistry.
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Affiliation(s)
- Zhenwei Lin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jing Qian
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Ping Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yanguang Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
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17
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Abstract
A practical Cu-catalyzed oxidation of α-diazoesters to α-ketoesters using molecular oxygen as an oxidant has been developed. Both electron-poor and electron-rich aryl α-diazoesters are suitable substrates and provide the α-ketoesters in good yields. In this oxidative system, α-diazo-β-ketoesters are also compatible as substrates but unexpectedly furnish α-ketoesters via C-C bond cleavage, rather than the vicinal tricarbonyl products.
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Affiliation(s)
- Changming Xu
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Yongchang Wang
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Lei Bai
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
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18
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Fukazawa Y, Rubtsov AE, Malkov AV. A Mild Method for Electrochemical Reduction of Heterocyclic N
-Oxides. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000377] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yasuaki Fukazawa
- Department of Chemistry; School of Science; Loughborough University; LE11 3TU Loughborough Leicestershire UK
| | | | - Andrei V. Malkov
- Department of Chemistry; School of Science; Loughborough University; LE11 3TU Loughborough Leicestershire UK
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19
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Bauer AM, Ramey EE, Oberle KG, Fata GA, Hutchison CD, Turlington CR. Cross-linked poly(4-vinylpyridine-N-oxide) as a polymer-supported oxygen atom transfer reagent. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Gelis C, Levitre G, Guérineau V, Touboul D, Neuville L, Masson G. Tandem Chiral Cu(II) Phosphate‐Catalyzed Deoxygenation of Nitrones/Enantioselective Povarov Reaction with Enecarbamates. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900547] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Coralie Gelis
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris‐Saclay Université Paris‐Sud 1, av. de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
| | - Guillaume Levitre
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris‐Saclay Université Paris‐Sud 1, av. de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
| | - Vincent Guérineau
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris‐Saclay Université Paris‐Sud 1, av. de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
| | - David Touboul
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris‐Saclay Université Paris‐Sud 1, av. de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
| | - Luc Neuville
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris‐Saclay Université Paris‐Sud 1, av. de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles CNRS UPR 2301 Université Paris‐Saclay Université Paris‐Sud 1, av. de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
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21
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Kim KD, Lee JH. Visible-Light Photocatalyzed Deoxygenation of N-Heterocyclic N-Oxides. Org Lett 2018; 20:7712-7716. [DOI: 10.1021/acs.orglett.8b03446] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kyu Dong Kim
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju 38066, Republic of Korea
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22
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Petrosyan A, Hauptmann R, Pospech J. Heteroarene N
-Oxides as Oxygen Source in Organic Reactions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800152] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andranik Petrosyan
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Str. 29a 18057 Rostock Germany
| | - Richy Hauptmann
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Str. 29a 18057 Rostock Germany
| | - Jola Pospech
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Str. 29a 18057 Rostock Germany
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23
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Gevorgyan A, Mkrtchyan S, Grigoryan T, Iaroshenko VO. Application of Silicon-Initiated Water Splitting for the Reduction of Organic Substrates. Chempluschem 2018; 83:375-382. [PMID: 31957356 DOI: 10.1002/cplu.201800131] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 03/31/2018] [Indexed: 12/26/2022]
Abstract
The use of water as a donor for hydrogen suitable for the reduction of several important classes of organic compounds is described. It is found that the reductive water splitting can be promoted by several metalloids among which silicon shows the best efficiency. The developed methodologies were applied for the reduction of nitro compounds, N-oxides, sulfoxides, alkenes, alkynes, hydrodehalogenation as well as for the gram-scale synthesis of several substrates of industrial importance.
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Affiliation(s)
- Ashot Gevorgyan
- Homogeneous Catalysis and Molecular Design Research Group, at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łodź, Poland.,Department of Chemistry, and Centre for Theoretical and Computational Chemistry (CTCC), University of Tromsø, 9037, Tromsø, Norway
| | - Satenik Mkrtchyan
- Homogeneous Catalysis and Molecular Design Research Group, at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łodź, Poland
| | - Tatevik Grigoryan
- Homogeneous Catalysis and Molecular Design Research Group, at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łodź, Poland
| | - Viktor O Iaroshenko
- Homogeneous Catalysis and Molecular Design Research Group, at the Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łodź, Poland
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24
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Zhu DP, Xu BH, Du YR, Zhang SJ. SiCl4-catalyzed/PR3-mediated β-C(sp3)−H functionalization of nitrones to α,β-unsaturated imines and aromatic heterocycles. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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25
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Sosa V, Melkie M, Sulca C, Li J, Tang L, Li J, Faris J, Foley B, Banh T, Kato M, Cheruzel LE. Selective Light-Driven Chemoenzymatic Trifluoromethylation/Hydroxylation of Substituted Arenes. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04160] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Victor Sosa
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Marya Melkie
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Carolina Sulca
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Jennifer Li
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Lawrence Tang
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Jeffrey Li
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Justin Faris
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Bridget Foley
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Tam Banh
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Mallory Kato
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
| | - Lionel E. Cheruzel
- Department of Chemistry, San José State University, One Washington Square, San
José, California 95192-0101, United States
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26
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Yu Y, Sha Q, Cui H, Chandler KS, Doyle MP. Displacement of Dinitrogen by Oxygen: A Methodology for the Catalytic Conversion of Diazocarbonyl Compounds to Ketocarbonyl Compounds by 2,6-Dichloropyridine-N-oxide. Org Lett 2018; 20:776-779. [DOI: 10.1021/acs.orglett.7b03912] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Yu
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Qiang Sha
- Department
of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, China 210095
| | - Hui Cui
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Kory S. Chandler
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P. Doyle
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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27
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Chardon A, Maubert O, Rouden J, Blanchet J. Metal-Free Reduction of Phosphine Oxides, Sulfoxides, andN-Oxides with Hydrosilanes using a Borinic Acid Precatalyst. ChemCatChem 2017. [DOI: 10.1002/cctc.201700986] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Aurélien Chardon
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN; Université de Caen Basse-Normandie, CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
| | - Orianne Maubert
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN; Université de Caen Basse-Normandie, CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
| | - Jacques Rouden
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN; Université de Caen Basse-Normandie, CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
| | - Jérôme Blanchet
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN; Université de Caen Basse-Normandie, CNRS; 6 boulevard du Maréchal Juin 14050 Caen France
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28
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Rubio-Presa R, Fernández-Rodríguez MA, Pedrosa MR, Arnáiz FJ, Sanz R. Molybdenum-Catalyzed Deoxygenation of Heteroaromatic N-
Oxides and Hydroxides using Pinacol as Reducing Agent. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700071] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Rubén Rubio-Presa
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Pza. Misael Bañuelos, s/n 09001 Burgos Spain
| | | | - María R. Pedrosa
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Pza. Misael Bañuelos, s/n 09001 Burgos Spain
| | - Francisco J. Arnáiz
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Pza. Misael Bañuelos, s/n 09001 Burgos Spain
| | - Roberto Sanz
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Pza. Misael Bañuelos, s/n 09001 Burgos Spain
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29
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Deng C, Lam WH, Lin Z. Computational Studies on Rhodium(III) Catalyzed C–H Functionalization versus Deoxygenation of Quinoline N-Oxides with Diazo Compounds. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00857] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Chao Deng
- Department of Chemistry, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PR China
| | - Wai Han Lam
- Department of Chemistry, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PR China
| | - Zhenyang Lin
- Department of Chemistry, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, PR China
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30
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Yuan JW, Li WJ, Xiao YM. KMnO4-mediated direct C2-selective C−H arylation of quinoline N-oxides with aromatic hydrazines. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.070] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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31
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Gevorgyan A, Mkrtchyan S, Grigoryan T, Iaroshenko VO. Disilanes as oxygen scavengers and surrogates of hydrosilanes suitable for selective reduction of nitroarenes, phosphine oxides and other valuable substrates. Org Chem Front 2017. [DOI: 10.1039/c7qo00566k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this report, we demonstrate that the reaction of nitroarenes with hexamethyldisilane under various conditions affords a different range of compounds with excellent selectivity.
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Affiliation(s)
- Ashot Gevorgyan
- Homogeneous Catalysis and Molecular Design Research Group at the Center of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- PL-90-363 Łodź
- Poland
| | - Satenik Mkrtchyan
- Homogeneous Catalysis and Molecular Design Research Group at the Center of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- PL-90-363 Łodź
- Poland
| | - Tatevik Grigoryan
- Homogeneous Catalysis and Molecular Design Research Group at the Center of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- PL-90-363 Łodź
- Poland
| | - Viktor O. Iaroshenko
- Homogeneous Catalysis and Molecular Design Research Group at the Center of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- PL-90-363 Łodź
- Poland
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32
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2015. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.08.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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33
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Biswas A, Karmakar U, Pal A, Samanta R. Copper-Catalyzed Regioselective Cascade Alkylation and Cyclocondensation of Quinoline N
-Oxides with Diazo Esters: Direct Access to Conjugated π-Systems. Chemistry 2016; 22:13826-13830. [DOI: 10.1002/chem.201602493] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Indexed: 02/03/2023]
Affiliation(s)
- Aniruddha Biswas
- Department of Chemistry; Indian Institute of Technology Kharagpur; Kharagpur 721302 India
| | - Ujjwal Karmakar
- Department of Chemistry; Indian Institute of Technology Kharagpur; Kharagpur 721302 India
| | - Arun Pal
- Department of Chemistry; Indian Institute of Technology Kharagpur; Kharagpur 721302 India
| | - Rajarshi Samanta
- Department of Chemistry; Indian Institute of Technology Kharagpur; Kharagpur 721302 India
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34
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Abstract
The first catalytic method to directly introduce nitrone functionality onto aldehyde substrates is described. This reaction proceeds by an unprecedented organocatalytic redox mechanism in which an enal is oxidized to the γ-nitrone via dienamine catalysis, thereby reducing an equivalent of nitrosobenzene. This reaction is a unique example of divergent reactivity of an enal, which represents a novel strategy for rapidly accessing small libraries of N,O-heterocycles. Alternatively, divergent reactivity can be suppressed simply by changing solvents.
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Affiliation(s)
- Americo J Fraboni
- Department of Chemistry, Rutgers University , 73 Warren Street, Newark, New Jersey 07102, United States
| | - Stacey E Brenner-Moyer
- Department of Chemistry, Rutgers University , 73 Warren Street, Newark, New Jersey 07102, United States
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35
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Rossi R, Lessi M, Manzini C, Marianetti G, Bellina F. Achievement of regioselectivity in transition metal-catalyzed direct C–H (hetero)arylation reactions of heteroarenes with one heteroatom through the use of removable protecting/blocking substituents or traceless directing groups. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.037] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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36
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Liu JB, Sheng XH, Sun CZ, Huang F, Chen DZ. A Computational Mechanistic Study of Amidation of Quinoline N-Oxide: The Relative Stability of Amido Insertion Intermediates Determines the Regioselectivity. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02938] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jian-Biao Liu
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, P. R. China
| | - Xie-Huang Sheng
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, P. R. China
| | - Chuan-Zhi Sun
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, P. R. China
| | - Fang Huang
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, P. R. China
| | - De-Zhan Chen
- College of Chemistry, Chemical
Engineering and Materials Science, Collaborative Innovation Center
of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, P. R. China
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37
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Pramanik MMD, Rastogi N. Synthesis of α-diazo-β-keto esters, phosphonates and sulfones via acylbenzotriazole-mediated acylation of a diazomethyl anion. Org Biomol Chem 2016; 13:11567-71. [DOI: 10.1039/c5ob01975c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The N-o-amino-acylbenzotriazoles exhibited an unprecedented transphosphorylation reaction leading to diazoacetyl phenylphosphoramidates.
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Affiliation(s)
- Mukund M. D. Pramanik
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Namrata Rastogi
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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38
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Sharma R, Kumar R, Kumar I, Sharma U. RhIII-Catalyzed Dehydrogenative Coupling of QuinolineN-Oxides with Alkenes:N-Oxide as Traceless Directing Group for Remote C-H Activation. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501246] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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39
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Rh(III)- and Ir(III)-Catalyzed Direct C–H Bond Transformations to Carbon–Heteroatom Bonds. TOP ORGANOMETAL CHEM 2015. [DOI: 10.1007/3418_2015_123] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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