1
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Escandón-Mancilla FM, González-Rivas N, Unnamatla MVB, García-Eleno MA, Corona-Becerril D, Frontana-Uribe BA, Cuevas-Yañez E. Beyond 1,2,3-triazoles: Formation and Applications of Ketemines Derived from Copper Catalyzed Azide Alkyne Cycloaddition. Curr Org Synth 2024; 21:359-379. [PMID: 36177624 DOI: 10.2174/1570179420666220929152449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/12/2022] [Accepted: 09/05/2022] [Indexed: 11/22/2022]
Abstract
Ketemines represent an interesting class of organic intermediates that has undergone a regrowth as a consequence of recent extensions of copper catalyzed azide alkyne cycloaddition (Cu- AAC) to other synthetic fields. This review summarizes the most recent generation methods of ketimines from CuAAC reaction, highlighting chemical properties focused on the synthesis of cyclic compounds, among others, affording a general outlook towards the development of new biologically active compounds.
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Affiliation(s)
- Flor M Escandón-Mancilla
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
| | - Nelly González-Rivas
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
| | - Murali V Basavanag Unnamatla
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
| | - Marco A García-Eleno
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
| | - David Corona-Becerril
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
| | - Bernardo A Frontana-Uribe
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México, 04510, Mexico
| | - Erick Cuevas-Yañez
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco Km. 14.5, Toluca, Estado de México, 50200, Mexico
- Facultad de Química, Universidad Autónoma del Estado de México. Paseo Colón esq. Paseo Tollocan, 50120, Toluca, Mexico
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2
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Prabhu D, Ray U, Rajeev A, Joy R, George AT, George J, Raghavan SC, John F. Design and Synthesis of Ketenimine Sulfonamide Conjugates through Multicomponent Reactions; A Combined Cytotoxic Analysis and Computational Exploration. ACS OMEGA 2023; 8:38619-38631. [PMID: 37867708 PMCID: PMC10586297 DOI: 10.1021/acsomega.3c05816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023]
Abstract
Multicomponent reactions involving zwitterion generated from dimethyl acetylenedicarboxylate, aryl sulfonamide, and isocyanide to generate sulfonamide-conjugated ketenimines is reported. The synthetic strategy adopted is highly atom economical and stereoselective. Ketenimine sulfonamide analogues are key intermediates for further synthetic conversions to generate a combinatorial library of compounds. Furthermore, sulfonamide compounds are known to possess a broad spectrum of biological applications. All the novel molecules synthesized exhibit the potential to target the nonhomologous DNA end-joining (NHEJ) pathway with cytotoxic ability. Computational studies compliment the in vitro biological assays of the 8 small-molecule inhibitors. DNA double-strand breaks (DSBs) are considered as the most lethal among different DNA damages. NHEJ repairs about 70% of the DSBs generated in cells within mammals. The DNA-dependent protein kinase catalytic subunit is one of the PI3 kinases associated with NHEJ. Compounds DK01-DK08 were investigated for their ability to induce cancer cell death by treating with two leukemic cell lines where NHEJ is high. Results showed that bromoaryl (DK04)- and nitroaryl (DK05)-conjugated molecules showed excellent biological activity, having IC50 values of ∼2 μM in Nalm6 cell lines.
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Affiliation(s)
- Deepak
J. Prabhu
- Post
Graduate Research Department of Chemistry, Maharajas College, Ernakulam, Ernakulam, Kerala 682011, India
| | - Ujjayinee Ray
- Department
of Microbiology, Techno India University,
Kolkata, West Bengal 700091, India
| | - Anjaly Rajeev
- Post
Graduate and Research Department of Chemistry, Sacred Heart college (M.G University), Thevara, Kerala 682013, India
| | - Reshma Joy
- Post
Graduate and Research Department of Chemistry, Sacred Heart college (M.G University), Thevara, Kerala 682013, India
| | - Abi Thoppilan George
- Post
Graduate and Research Department of Chemistry, Sacred Heart college (M.G University), Thevara, Kerala 682013, India
| | - Jinu George
- Post
Graduate and Research Department of Chemistry, Sacred Heart college (M.G University), Thevara, Kerala 682013, India
| | - Sathees C. Raghavan
- Department
of Biochemistry, Indian Institute of Science, Bengaluru 560012, India
| | - Franklin John
- Post
Graduate and Research Department of Chemistry, Sacred Heart college (M.G University), Thevara, Kerala 682013, India
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3
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Zhang H, Depew K, Chiasson JF, Leung CY, Crane SN, Rhodes M, Sui Z, Liu P. Efficient and metal Free synthesis of 2,3-disubstituted pyridopyrimidinones via ketenimine intermediates. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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4
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Yang W, Zhao Y, Bu Q, Li L, Zhou B, Huang Z. Tandem CuAAC/Ring Cleavage/[4 + 2] Annulation Reaction to Synthesize Dihydrooxazines and Conversion to 2-Aminopyrimidines. Org Lett 2021; 24:457-461. [PMID: 34935394 DOI: 10.1021/acs.orglett.1c04179] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A tandem CuAAC/ring cleavage/[4 + 2] annulation reaction of terminal ynones, sulfonyl azides, and oximes has been developed to synthesize functionalized dihydrooxazines under mild conditions. In particular, intermediate N-sulfonyl acylketenimines are the first example of a 4π-system participating in [4 + 2] cycloadditions, and dihydrooxazines can convert to 2-aminopyridines through ring cleavage under basic conditions.
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Affiliation(s)
- Weiguang Yang
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China.,The Marine Biomedical Research Institute of Guangdong, Zhanjiang, Guangdong 524023, China
| | - Yu Zhao
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Qingxia Bu
- Department of Chemistry, School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210009, China
| | - Li Li
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Baojing Zhou
- Department of Chemistry, School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210009, China
| | - Zunnan Huang
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
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5
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Luo X, Zhao Y, Tao S, Yang ZT, Luo H, Yang W. A simple and efficient copper-catalyzed three-component reaction to synthesize ( Z)-1,2-dihydro-2-iminoquinolines. RSC Adv 2021; 11:31152-31158. [PMID: 35496874 PMCID: PMC9041411 DOI: 10.1039/d1ra06330h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022] Open
Abstract
A operationally simple synthesis of (Z)-1,2-dihydro-2-iminoquinolines that proceeds under mild conditions is achieved by copper-catalyzed reaction of 1-(2-aminophenyl)ethan-1-ones, sulfonyl azides and terminal ynones. In particular, the reaction goes through a base-free CuAAC/ring-opening process to obtain the Z-configured products due to hydrogen bonding.
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Affiliation(s)
- Xiai Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Department of Pharmacy, Hunan University of Medicine Huaihua 418000 China
| | - Yu Zhao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Susu Tao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Zhong-Tao Yang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China
| | - Hui Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang Guangdong 524023 China
| | - Weiguang Yang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang Guangdong 524023 China
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6
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Zhao Y, Zhou Z, Liu L, Chen M, Yang W, Chen Q, Gardiner MG, Banwell MG. The Copper-Catalyzed Reaction of 2-(1-Hydroxyprop-2-yn-1-yl)phenols with Sulfonyl Azides Leading to C3-Unsubstituted N-Sulfonyl-2-iminocoumarins. J Org Chem 2021; 86:9155-9162. [PMID: 34137260 DOI: 10.1021/acs.joc.1c00331] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An operationally simple synthesis of Z-configured and C3-unsubstituted N-sulfonyl-2-iminocoumarins (e.g., 8a) that proceeds under mild conditions is achieved by reacting 2-(1-hydroxyprop-2-yn-1-yl)phenols (e.g., 6a) with sulfonyl azides (e.g., 7a). The cascade process involved likely starts with a copper-catalyzed alkyne-azide cycloaddition (CuAAC) reaction. This is followed by ring-opening of the resulting metalated triazole (with accompanying loss of nitrogen), reaction of the ensuing ketenimine with the pendant phenolic hydroxyl group, and finally dehydration of the (Z)-N-(4-hydroxychroman-2-ylidene)sulfonamide so formed.
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Affiliation(s)
- Yu Zhao
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Zitong Zhou
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Lvling Liu
- The Marine Biomedical Research Institute of Guangdong, Zhanjiang, Guangdong 524023, China
| | - Man Chen
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Weiguang Yang
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China.,The Marine Biomedical Research Institute of Guangdong, Zhanjiang, Guangdong 524023, China.,Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang, Guangdong 524023, China
| | - Qi Chen
- Institute for Advanced and Applied Chemical Synthesis, Jinan UniversityGuangzhou/Zhuhai, 510632/519070, China
| | - Michael G Gardiner
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra 2601, Australia
| | - Martin G Banwell
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China.,Institute for Advanced and Applied Chemical Synthesis, Jinan UniversityGuangzhou/Zhuhai, 510632/519070, China.,Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra 2601, Australia
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7
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Zhao Y, Zhou Z, Chen M, Yang W. Copper-Catalyzed One-Pot Synthesis of N-Sulfonyl Amidines from Sulfonyl Hydrazine, Terminal Alkynes and Sulfonyl Azides. Molecules 2021; 26:3700. [PMID: 34204392 PMCID: PMC8235413 DOI: 10.3390/molecules26123700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/10/2021] [Accepted: 06/14/2021] [Indexed: 11/16/2022] Open
Abstract
N-Sulfonyl amidines are developed from a Cu-catalyzed three-component reaction from sulfonyl hydrazines, terminal alkynes and sulfonyl azides in toluene at room temperature. Particularly, the intermediate N-sulfonylketenimines was generated via a CuAAC/ring-opening procedure and took a nucleophilic addition with the weak nucleophile sulfonyl hydrazines. In addition, the stability of the product was tested by a HNMR spectrometer.
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Affiliation(s)
| | | | | | - Weiguang Yang
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; (Y.Z.); (Z.Z.); (M.C.)
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8
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Zhan ZZ, He JP, Jiang PB, Zhang MM, Wang HS, Luo N, Huang GS. Cu(II)‐Catalyzed Synthesis of 2,3,6‐Trisubstituted Pyridines from Saturated Ketone and Alkynones/1,3‐Dicarbonyl Compounds. ChemistrySelect 2021. [DOI: 10.1002/slct.202100775] [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)
- Zhen Z. Zhan
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Jian P. He
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Peng B. Jiang
- Zhe Jiang Shaoxing Zhejiang Pharmaceutical Co., Ltd. No. 58 Changhe Road, Binhai New City Shaoxing City Zhejiang Province China
| | - Ming M. Zhang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - He S. Wang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Nan Luo
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Guo S. Huang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
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9
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Hayatgheybi S, Khosravi H, Zahedian Tejeneki H, Rominger F, Bijanzadeh HR, Balalaie S. Synthesis of N-(Isoquinolin-1-yl)sulfonamides via Ag 2O-Catalyzed Tandem Reaction of ortho-Alkynylbenzaldoximes with Benchtop Stabilized Ketenimines. Org Lett 2021; 23:3524-3529. [PMID: 33851841 DOI: 10.1021/acs.orglett.1c00937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In this project, a moderately efficient approach to multisubstituted N-(isoquinolin-1-yl)sulfonamide derivatives was illustrated, utilizing ortho-alkynylbenzaldoximes and zwitterionic ketenimine salts in a tandem reaction catalyzed by silver oxide. The oxophilicity of Ag2O, along with its nature as Lewis acid, pave the way for a smooth [3 + 2] cycloaddition between isoquinoline N-oxides and ketenimine species, which is a key step in this reaction. DFT calculation suggests that 1,3-dipolar cycloaddition of nitrone and ketenimine proceeds through a selective stepwise mechanism.
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Affiliation(s)
- Sepideh Hayatgheybi
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, 19697-64499 Tehran, Iran
| | - Hormoz Khosravi
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, 19697-64499 Tehran, Iran
| | - Hossein Zahedian Tejeneki
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, 19697-64499 Tehran, Iran
| | - Frank Rominger
- Organisch-Chemisches Institut der Universitaet Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hamid Reza Bijanzadeh
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, 14117-13116 Tehran, Iran
| | - Saeed Balalaie
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, 19697-64499 Tehran, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences, 67158-47141 Kermanshah, Iran
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10
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Zhao Y, Li L, Zhou Z, Chen M, Yang W, Luo H. Copper catalyzed five-component domino strategy for the synthesis of nicotinimidamides. Org Biomol Chem 2021; 19:3868-3872. [PMID: 33949559 DOI: 10.1039/d1ob00162k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A library of medicinally and synthetically important nicotinimidamides was synthesized by a copper-catalyzed multicomponent domino reaction of oxime esters, terminal ynones, sulfonyl azides, aryl aldehydes and acetic ammonium. Its synthetic pathway involves the formation of a highly reactive N-sulfonyl acetylketenimine, characterized by high selectivity, combinations of potential nucleophiles and electrophiles, mild reaction conditions and a wide substrate scope, and is a rare five-component example of a CuAAC/ring-opening reaction.
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Affiliation(s)
- Yu Zhao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China.
| | - Li Li
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China.
| | - Zitong Zhou
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China.
| | - Man Chen
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China.
| | - Weiguang Yang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China. and The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong 524023, China and Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong 524023, China
| | - Hui Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China. and The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong 524023, China and Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong 524023, China
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11
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Zhu G, Lai X, Wang S, Lin C, Yuan Y. Synthesis of 2-Imino-1,2-dihydroquinolines via Copper Catalysis. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Green SP, Wheelhouse KM, Payne AD, Hallett JP, Miller PW, Bull JA. On the Use of Differential Scanning Calorimetry for Thermal Hazard Assessment of New Chemistry: Avoiding Explosive Mistakes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sebastian P. Green
- Department of Chemistry Imperial College London Molecular Sciences Research Hub White City Campus, Wood Lane London W12 0BZ UK
- Department of Chemical Engineering Imperial College London South Kensington Campus, Exhibition Road London SW7 2AZ UK
| | - Katherine M. Wheelhouse
- Chemical Development Product Development & Supply GlaxoSmithKline GSK Medicines Research Centre Gunnels Wood Road Stevenage Hertfordshire SG1 2NY UK
| | - Andrew D. Payne
- Process Safety Clinical Supply Chain GlaxoSmithKline GSK Medicines Research Centre Gunnels Wood Road Stevenage Hertfordshire SG1 2NY UK
| | - Jason P. Hallett
- Department of Chemical Engineering Imperial College London South Kensington Campus, Exhibition Road London SW7 2AZ UK
| | - Philip W. Miller
- Department of Chemistry Imperial College London Molecular Sciences Research Hub White City Campus, Wood Lane London W12 0BZ UK
| | - James A. Bull
- Department of Chemistry Imperial College London Molecular Sciences Research Hub White City Campus, Wood Lane London W12 0BZ UK
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13
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Green SP, Wheelhouse KM, Payne AD, Hallett JP, Miller PW, Bull JA. On the Use of Differential Scanning Calorimetry for Thermal Hazard Assessment of New Chemistry: Avoiding Explosive Mistakes. Angew Chem Int Ed Engl 2020; 59:15798-15802. [PMID: 32893978 DOI: 10.1002/anie.202007028] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Indexed: 01/05/2023]
Abstract
Differential scanning calorimetry (DSC) is increasingly used as evidence to support a favourable safety profile of novel chemistry, or to highlight the need for caution. DSC enables preliminary assessment of the thermal hazards of a potentially energetic compound. However, unlike other standard characterisation methods, which have well defined formats for reporting data, the current reporting of DSC results for thermal hazard assessment has shown concerning trends. Around half of all results in 2019 did not include experimental details required to replicate the procedure. Furthermore, analysis for thermal hazard assessment is often only conducted in unsealed crucibles, which could lead to misleading results and dangerously incorrect conclusions. We highlight the specific issues with DSC analysis of hazardous compounds currently in the organic chemistry literature and provide simple "best practice" guidelines which will give chemists confidence in reported DSC results and the conclusions drawn from them.
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Affiliation(s)
- Sebastian P Green
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK.,Department of Chemical Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London, SW7 2AZ, UK
| | - Katherine M Wheelhouse
- Chemical Development, Product Development & Supply, GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK
| | - Andrew D Payne
- Process Safety, Clinical Supply Chain, GlaxoSmithKline, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, UK
| | - Jason P Hallett
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London, SW7 2AZ, UK
| | - Philip W Miller
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK
| | - James A Bull
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, Wood Lane, London, W12 0BZ, UK
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