1
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Wang J, Li S, Yang C, Gao H, Zuo L, Guo Z, Yang P, Jiang Y, Li J, Wu LZ, Tang Z. Photoelectrochemical Ni-catalyzed cross-coupling of aryl bromides with amine at ultra-low potential. Nat Commun 2024; 15:6907. [PMID: 39134536 PMCID: PMC11319468 DOI: 10.1038/s41467-024-51333-6] [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: 03/28/2024] [Accepted: 08/05/2024] [Indexed: 08/15/2024] Open
Abstract
Photoelectrochemical (PEC) cell is an ideal platform for organic transformation because of its green benefits and minimal energy consumption. As an emerging methodology, the reaction types of photoelectrocatalytic organic synthesis (PECOS) are limited to simple oxidation and C-H activation at current stage. Metal catalysis for the construction of C(sp2)-N bonds has not been touched yet in PECOS. We introduce here a PEC method that successfully engages Ni catalysis for the mild production of aniline derivatives. Experimental and computational investigations elucidate that the addition of photoanode-generated amine radical to Ni catalyst avoids the sluggish nucleophilic attack, enabling the reaction to proceed at an ultra-low potential (-0.4 V vs. Ag/AgNO3) and preventing the overoxidation of products in conventional electrochemical synthesis. This synergistic catalysis strategy exhibits good functional group tolerance and wide substrate scope on both aryl halides and amines, by which some important natural products and pharmaceutical chemicals have been successfully modified.
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Affiliation(s)
- Jinghao Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Siyang Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Caoyu Yang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Huiwen Gao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Lulu Zuo
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Zhiyu Guo
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Pengqi Yang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China
| | - Yuheng Jiang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China
- University of Chinese Academy of Sciences, Beijing, PR China
| | - Jian Li
- University of Chinese Academy of Sciences, Beijing, PR China.
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Beijing, PR China.
| | - Li-Zhu Wu
- University of Chinese Academy of Sciences, Beijing, PR China.
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Beijing, PR China.
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, PR China.
- University of Chinese Academy of Sciences, Beijing, PR China.
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2
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Liu S, Liu X, Zhang TS, Bao X, Sheng X, Qi Z, Jiang D. Electro-oxidative intermolecular C SP2-H amination of heteroarenes via proton-coupled electron transfer. Org Biomol Chem 2024; 22:2549-2553. [PMID: 38446035 DOI: 10.1039/d4ob00164h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
A new electrochemical proton-coupled electron transfer method for the intermolecular CSP2-H amination of heteroarenes without oxidants, metal catalysts and external electrolytes has been developed. Various new N-containing heteroarenes were prepared in medium to high yields, and the indole-containing product could be converted into practical 2-oxindole by simple basic hydrolysis. Mechanistic investigation indicated that ester sulfonyl-substituted N-radicals could be formed by the combination of 2,6-lutidine and electrochemical oxidation, which is the key to achieve the desired chemoselectivity.
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Affiliation(s)
- Shuai Liu
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, P. R. China.
| | - Xin Liu
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, P. R. China.
| | - Tian-Shu Zhang
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, P. R. China.
| | - Xiaoyu Bao
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, P. R. China.
| | - Xiaoyu Sheng
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu, 221018, P. R. China.
| | - Zhenjie Qi
- Department of Engineering, Jining University, Qufu, Shandong, 273155, P. R. China.
| | - Dongfang Jiang
- College of Life Science and Chemistry, Hunan University of Technology, Zhuzhou, Hunan, 412008, P. R. China.
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3
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Onnuch P, Ramagonolla K, Liu RY. Aminative Suzuki-Miyaura coupling. Science 2024; 383:1019-1024. [PMID: 38422125 DOI: 10.1126/science.adl5359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/05/2024] [Indexed: 03/02/2024]
Abstract
The Suzuki-Miyaura and Buchwald-Hartwig coupling reactions are widely used to form carbon-carbon (C-C) and carbon-nitrogen (C-N) bonds, respectively. We report the incorporation of a formal nitrene insertion process into the Suzuki-Miyaura reaction, altering the products from C-C-linked biaryls to C-N-C-linked diaryl amines and thereby joining the Suzuki-Miyaura and Buchwald-Hartwig coupling pathways to the same starting-material classes. A combination of a bulky ancillary phosphine ligand on palladium and a commercially available amination reagent enables efficient reactivity across aryl halides and pseudohalides, boronic acids and esters, and many functional groups and heterocycles. Mechanistic insights reveal flexibility on the order of bond-forming events, suggesting potential for expansion of the aminative cross-coupling concept to encompass diverse nucleophiles and electrophiles as well as four-component variants.
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Affiliation(s)
- Polpum Onnuch
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | | | - Richard Y Liu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
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4
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Kaviani N, Behrouz S, Jafari AA, Soltani Rad MN. Functionalization of Fe 3O 4@SiO 2 nanoparticles with Cu(i)-thiosemicarbazone complex as a robust and efficient heterogeneous nanocatalyst for N-arylation of N-heterocycles with aryl halides. RSC Adv 2023; 13:30293-30305. [PMID: 37849694 PMCID: PMC10577646 DOI: 10.1039/d3ra06327e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 10/10/2023] [Indexed: 10/19/2023] Open
Abstract
In this research, the functionalized silica-coated magnetite nanoparticles with Cu(i)-thiosemicarbazone complex (Fe3O4@SiO2-[CuL]) has been designed and synthesized as a magnetically retrievable nanocatalyst. Different techniques were employed to characterize the structure of Fe3O4@SiO2-[CuL] comprising FT-IR, FE-SEM, TEM, DLS, XRD, EDX, TGA, AAS, and VSM analysis. The catalytic performance of Fe3O4@SiO2-[CuL] was perused in Ullmann-type N-arylation of nucleobases, xanthines, and other N-heterocycles with diverse aryl halides which acquired the desired N-aryl products in good to excellent yields. Fe3O4@SiO2-[CuL] is a thermal and chemical stable, easy to prepare and recyclable, inexpensive, and ecofriendly catalyst that needs no additional additive or ligand as promoters. This catalyst could be separated without difficulty by a simple magnet and reused for at least seven sequential runs without a significant decline in its catalytic performance.
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Affiliation(s)
- Narjes Kaviani
- Department of Chemistry, Faculty of Science, Yazd University Yazd Iran
| | - Somayeh Behrouz
- Department of Chemistry, Shiraz University of Technology Shiraz 71555-313 Iran +98 71 3735 4520 +98 71 3735 4500
| | - Abbas Ali Jafari
- Department of Chemistry, Faculty of Science, Yazd University Yazd Iran
| | - Mohammad Navid Soltani Rad
- Department of Chemistry, Shiraz University of Technology Shiraz 71555-313 Iran +98 71 3735 4520 +98 71 3735 4500
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5
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Luo J, Davenport MT, Callister C, Minteer SD, Ess DH, Liu TL. Understanding Formation and Roles of Ni II Aryl Amido and Ni III Aryl Amido Intermediates in Ni-Catalyzed Electrochemical Aryl Amination Reactions. J Am Chem Soc 2023; 145:16130-16141. [PMID: 37433081 PMCID: PMC10635587 DOI: 10.1021/jacs.3c04610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Ni-catalyzed electrochemical aryl amination (e-amination) is an attractive, emerging approach to building C-N bonds. Here, we report in-depth experimental and computational studies that examined the mechanism of Ni-catalyzed e-amination reactions. Key NiII-amine dibromide and NiII aryl amido intermediates were chemically synthesized and characterized. The combination of experiments and DFT calculations suggest (1) there is coordination of an amine to the NiII catalyst before the cathodic reduction and oxidative addition steps, (2) a stable NiII aryl amido intermediate is produced from the cathodic half-reaction, a critical step in controlling the selectivity between cross-coupling and undesired homo-coupling reaction pathways, (3) the diazabicycloundecene additive shifts the aryl halide oxidative addition mechanism from a NiI-based pathway to a Ni0-based pathway, and (4) redox-active bromide in the supporting electrolyte functions as a redox mediator to promote the oxidation of the stable NiII aryl amido intermediate to a NiIII aryl amido intermediate. Subsequently, the NiIII aryl amido intermediate undergoes facile reductive elimination to provide a C-N cross-coupling product at room temperature. Overall, our results provide new fundamental understandings about this e-amination reaction and guidance for further development of other Ni-catalyzed electrosynthetic reactions such as C-C and C-O cross-couplings.
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Affiliation(s)
- Jian Luo
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
| | - Michael T Davenport
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84604, United States
| | - Chad Callister
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
| | - Shelley D Minteer
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Daniel H Ess
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84604, United States
| | - T Leo Liu
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
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6
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Emadi R, Bahrami Nekoo A, Molaverdi F, Khorsandi Z, Sheibani R, Sadeghi-Aliabadi H. Applications of palladium-catalyzed C-N cross-coupling reactions in pharmaceutical compounds. RSC Adv 2023; 13:18715-18733. [PMID: 37346956 PMCID: PMC10280806 DOI: 10.1039/d2ra07412e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 05/17/2023] [Indexed: 06/23/2023] Open
Abstract
C-N cross-coupling bond formation reactions have become valuable approaches to synthesizing anilines and their derivatives, known as important chemical compounds. Recent developments in this field have focused on versatile catalysts, simple operation methods, and green reaction conditions. This review article presents an overview of C-N cross-coupling reactions in pharmaceutical compound synthesis reports. Selected examples of N-arylation reactions of various nitrogen-based compounds and aryl halides are defined for preparing pharmaceutical molecules.
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Affiliation(s)
- Reza Emadi
- Department of Biochemistry, Institute of Biochemistry & Biophysics (IBB), University of Tehran Tehran Iran
| | - Abbas Bahrami Nekoo
- Nanoalvand Pharmaceutical Company, Department of Quality Control, Unit of Raw Materials Simindasht Alborz Iran
| | - Fatemeh Molaverdi
- Department of Organic Chemistry, School of Chemistry, College of Science, Tehran University Tehran Islamic Republic of Iran
| | - Zahra Khorsandi
- Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences Isfahan 81746-73461 Iran
| | - Reza Sheibani
- Amirkabir University of Technology-Mahshahr Campus University St., Nahiyeh san'ati Mahshahr Khouzestan Iran
| | - Hojjat Sadeghi-Aliabadi
- Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences Isfahan 81746-73461 Iran
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7
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Saikia RA, Talukdar K, Pathak D, Sarma B, Thakur AJ. Utilization of Aryl(TMP)iodonium Salts for Copper-Catalyzed N-Arylation of Isatoic Anhydrides: An Avenue to Fenamic Acid Derivatives and N,N'-Diarylindazol-3-ones. J Org Chem 2023; 88:3567-3581. [PMID: 36827541 DOI: 10.1021/acs.joc.2c02762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Herein, we report a general method for copper-catalyzed N-arylation of isatoic anhydrides with unsymmetrical iodonium salts at room temperature. The developed catalytic protocol is mild and operationally simple, and aryl(TMP)iodonium trifluoroacetate is employed as the arylating partner. The methodology offers the broad applicability of both structurally and electronically diverse aryl groups from aryl(TMP)iodonium salts to access N-arylated isatoic anhydrides in moderate to excellent yields (53-92%). Moreover, the substituted isatoic anhydrides are equally compatible with the protocol too. To demonstrate the synthetic utilities of the N-arylation process, we also report an alternative approach for biologically relevant fenamic acid derivatives and N,N'-diarylindazol-3-ones in a one-pot step economical system. In addition, the scale-up synthesis of flufenamic acid is also illustrated.
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Affiliation(s)
- Raktim Abha Saikia
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Khanindra Talukdar
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Debabrat Pathak
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Bipul Sarma
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
| | - Ashim Jyoti Thakur
- Department of Chemical Sciences, Tezpur University, Napaam 784028, India
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8
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Ghosh MK, Sharma KS, Pandey G. Regioselective C(sp 2)-H imidation of arenes by redox neutral visible-light photocatalysis. Org Biomol Chem 2023; 21:538-550. [PMID: 36537241 DOI: 10.1039/d2ob02040h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report herein a redox neutral visible light-induced regioselective C(sp2)-H imidation of electron-rich arenes and heteroarenes using conceptually designed redox-active 1 as a source of the N-centered imidyl radical. Structurally diverse aromatic imides were obtained in moderate to good yields. This methodology has been successfully employed for the late stage imidation of complex molecules and has also been applied towards the formal total synthesis of the marine natural products carpatamides A, B and D. It has further been shown that the generated imides can easily be converted to the corresponding anilines in situ directly.
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Affiliation(s)
- Manoj Kumar Ghosh
- Department of Chemistry, Institute of Science, Banaras Hindu University (B. H. U.), Varanasi-221005, U.P., India.
| | - Kumari Swati Sharma
- Department of Chemistry, Institute of Science, Banaras Hindu University (B. H. U.), Varanasi-221005, U.P., India.
| | - Ganesh Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University (B. H. U.), Varanasi-221005, U.P., India.
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9
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Yang H, Xi S, Guo N, Wang M, Liu L, Lyu P, Yu X, Li J, Xu H, Hai X, Li Z, Li X, Sun T, Zhao X, Han Y, Yu W, Wu J, Zhang C, Fei H, Koh MJ, Lu J. Catalytically active atomically thin cuprate with periodic Cu single sites. Natl Sci Rev 2023; 10:nwac100. [PMID: 36879660 PMCID: PMC9985158 DOI: 10.1093/nsr/nwac100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 11/14/2022] Open
Abstract
Rational design and synthesis of catalytically active two-dimensional (2D) materials with an abundance of atomically precise active sites in their basal planes remains a great challenge. Here, we report a ligand exchange strategy to exfoliate bulk [Cu4(OH)6][O3S(CH2)4SO3] cuprate crystals into atomically thin 2D cuprate layers ([Cu2(OH)3]+). The basal plane of 2D cuprate layers contains periodic arrays of accessible unsaturated Cu(II) single sites (2D-CuSSs), which are found to promote efficient oxidative Chan-Lam coupling. Our mechanistic studies reveal that the reactions proceed via coordinatively unsaturated CuO4(II) single sites with the formation of Cu(I) species in the rate-limiting step, as corroborated by both operando experimental and theoretical studies. The robust stability of 2D-CuSSs in both batch and continuous flow reactions, coupled with their recyclability and good performance in complex molecule derivatization, render 2D-CuSSs attractive catalyst candidates for broad utility in fine chemical synthesis.
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Affiliation(s)
- Huimin Yang
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, Singapore 627833, Singapore
| | - Na Guo
- Department of Physics, National University of Singapore, Singapore 117542, Singapore
| | - Mu Wang
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Lingmei Liu
- Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Pin Lyu
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Xiaolong Yu
- SDU-ANU Joint Science College, Shandong University, Weihai264209, China
| | - Jing Li
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Haomin Xu
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Xiao Hai
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Zejun Li
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Xinzhe Li
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Tao Sun
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Xiaoxu Zhao
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Yu Han
- Advanced Membranes and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Wei Yu
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Jie Wu
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Chun Zhang
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore.,Department of Physics, National University of Singapore, Singapore 117542, Singapore.,Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore 117546, Singapore
| | - Honghan Fei
- Department of Chemistry, Tongji University, Shanghai200092, China
| | - Ming Joo Koh
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore.,Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore 117546, Singapore
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10
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Paul A, Sengupta A, Yadav S. Organophotoredox-Catalyzed Cross-Dehydrogenative Sulfonamidation of Indoles and Other Heterocycles. J Org Chem 2022. [DOI: 10.1021/acs.joc.2c02022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Aditya Paul
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, Jharkhand 826004, India
| | - Arunava Sengupta
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, Jharkhand 826004, India
| | - Somnath Yadav
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, Jharkhand 826004, India
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11
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Ghosh S, Chattopadhyay SK. UNUSUAL REGIOSELECTIVITY IN PALLADIUM‐CATALYZED TANDEM C,H‐ARYLATION AND C,H‐AMIDATION OF CIS‐CINNAMYL HYDROXAMATES: FACILE SYNTHESIS OF 3‐ARYL‐2‐QUINOLONES. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Subhankar Ghosh
- University of Kalyani Faculty of Science Department of Chemistry B-block 741235 Kalyani INDIA
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12
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Synthesis, Structure, and Biologic Activity of Some Copper, Nickel, Cobalt, and Zinc Complexes with 2-Formylpyridine N4-Allylthiosemicarbazone. Bioinorg Chem Appl 2022; 2022:2705332. [PMID: 35662913 PMCID: PMC9159852 DOI: 10.1155/2022/2705332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 01/18/2023] Open
Abstract
A series of zinc(II) ([Zn(H2O)(L)Cl] (1)), copper (II) ([Cu(L)Cl] (2), [Cu(L)Br] (3), [Cu2(L)2(CH3COO)2]·4H2O (4)), nickel(II) ([Ni(HL)2]Cl2·H2O (5)), and cobalt(III) ([Co(L)2]Cl (6)) complexes were obtained with 2-formylpyridine N4-allylthiosemicarbazone (HL). In addition another two thiosemicarbazones (3-formylpyridine N4-allylthiosemicarbazone (HLa) and 4-formylpyridine N4-allylthiosemicarbazone (HLb)) have been obtained. The synthesized thiosemicarbazones have been studied using 1H and 13C NMR spectroscopy, IR spectroscopy, and X-ray diffraction analysis. The composition and structure of complexes were studied using elemental analysis, IR and UV-Vis spectroscopies, molar conductivity, and magnetic susceptibility measurements. Single crystal X-ray diffraction analysis elucidated the structure of thiosemicarbazones HL, HLa, and HLb, as well as complexes 4 and 5. The antiproliferative properties of these compounds toward a series of cancer cell lines (HL-60, HeLa, BxPC-3, RD) and a normal cell line (MDCK) have been investigated. The nickel complex shows high selectivity (SI > 1000) toward HL-60 cell line and is the least toxic. The zinc complex shows the highest selectivity toward RD cell line (SI = 640). The copper complexes (2–4) are the most active molecular inhibitors of proliferation of cancer cells, but exhibit not such a high selectivity and are significantly more toxic. Zinc and copper complexes manifest high antibacterial activity. It was found that calculated at B3LYP level of theory different reactivity descriptors of studied compounds strongly correlate with their biological activity.
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13
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Chheda PR, Simmons N, Schuman DP, Shi Z. Palladium-Mediated C–N Coupling of DNA-Conjugated (Hetero)aryl Halides with Aliphatic and (Hetero)aromatic Amines. Org Lett 2022; 24:3401-3406. [DOI: 10.1021/acs.orglett.2c01175] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pratik R. Chheda
- Discovery Chemistry, Janssen Research & Development, LLC, San Diego, California 92121, United States
| | - Nicholas Simmons
- Discovery Chemistry, Janssen Research & Development, LLC, San Diego, California 92121, United States
| | - David P. Schuman
- Discovery Chemistry, Janssen Research & Development, LLC, San Diego, California 92121, United States
| | - Zhicai Shi
- Discovery Chemistry, Janssen Research & Development, LLC, Spring House, Pennsylvania 19477, United States
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14
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Complementary catalysis and analysis within solid state additively manufactured metal micro flow reactors. Sci Rep 2022; 12:5121. [PMID: 35332202 PMCID: PMC8948297 DOI: 10.1038/s41598-022-09044-9] [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: 09/02/2021] [Accepted: 03/16/2022] [Indexed: 11/08/2022] Open
Abstract
Additive Manufacturing is transforming how researchers and industrialists look to design and manufacture chemical devices to meet their specific needs. In this work, we report the first example of a flow reactor formed via the solid-state metal sheet lamination technique, Ultrasonic Additive Manufacturing (UAM), with directly integrated catalytic sections and sensing elements. The UAM technology not only overcomes many of the current limitations associated with the additive manufacturing of chemical reactionware but it also significantly increases the functionality of such devices. A range of biologically important 1, 4-disubstituted 1, 2, 3-triazole compounds were successfully synthesised and optimised in-flow through a Cu mediated Huisgen 1, 3-dipolar cycloaddition using the UAM chemical device. By exploiting the unique properties of UAM and continuous flow processing, the device was able to catalyse the proceeding reactions whilst also providing real-time feedback for reaction monitoring and optimisation.
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15
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Chatterjee S, Harden I, Bistoni G, Castillo RG, Chabbra S, van Gastel M, Schnegg A, Bill E, Birrell JA, Morandi B, Neese F, DeBeer S. A Combined Spectroscopic and Computational Study on the Mechanism of Iron-Catalyzed Aminofunctionalization of Olefins Using Hydroxylamine Derived N-O Reagent as the "Amino" Source and "Oxidant". J Am Chem Soc 2022; 144:2637-2656. [PMID: 35119853 PMCID: PMC8855425 DOI: 10.1021/jacs.1c11083] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
Herein, we study
the mechanism of iron-catalyzed direct synthesis
of unprotected aminoethers from olefins by a hydroxyl amine derived
reagent using a wide range of analytical and spectroscopic techniques
(Mössbauer, Electron Paramagnetic Resonance, Ultra-Violet Visible
Spectroscopy, X-ray Absorption, Nuclear Resonance Vibrational Spectroscopy,
and resonance Raman) along with high-level quantum chemical calculations.
The hydroxyl amine derived triflic acid salt acts as the “oxidant”
as well as “amino” group donor. It activates the high-spin
Fe(II) (St = 2) catalyst [Fe(acac)2(H2O)2] (1) to generate
a high-spin (St = 5/2) intermediate (Int I), which decays to a second intermediate (Int II) with St = 2. The analysis of spectroscopic
and computational data leads to the formulation of Int I as [Fe(III)(acac)2-N-acyloxy] (an alkyl-peroxo-Fe(III)
analogue). Furthermore, Int II is formed by N–O
bond homolysis. However, it does not generate a high-valent
Fe(IV)(NH) species (a Fe(IV)(O) analogue), but instead a high-spin
Fe(III) center which is strongly antiferromagnetically coupled (J = −524 cm–1) to an iminyl radical,
[Fe(III)(acac)2-NH·], giving St = 2. Though Fe(NH) complexes as isoelectronic surrogates
to Fe(O) functionalities are known, detection of a high-spin Fe(III)-N-acyloxy intermediate (Int I), which undergoes
N–O bond cleavage to generate the active iron–nitrogen
intermediate (Int II), is unprecedented. Relative to
Fe(IV)(O) centers, Int II features a weak elongated Fe–N
bond which, together with the unpaired electron density along the
Fe–N bond vector, helps to rationalize its propensity for N-transfer reactions onto styrenyl olefins, resulting in
the overall formation of aminoethers. This study thus demonstrates
the potential of utilizing the iron-coordinated nitrogen-centered
radicals as powerful reactive intermediates in catalysis.
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Affiliation(s)
- Sayanti Chatterjee
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany.,Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Ingolf Harden
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Giovanni Bistoni
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Rebeca G Castillo
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Sonia Chabbra
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Maurice van Gastel
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Alexander Schnegg
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Eckhard Bill
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - James A Birrell
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Bill Morandi
- ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland.,Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Frank Neese
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
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16
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Xie Y, Fang Z, Yang W, He Z, Chen K, Heng P, Wang B, Zhou X. 6-Iodopurine as a Versatile Building Block for RNA Purine Architecture Modifications. Bioconjug Chem 2022; 33:353-362. [PMID: 35119264 DOI: 10.1021/acs.bioconjchem.1c00595] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Natural modified bases in RNA were found to be indispensable for basic biological processes. In addition, artificial RNA modifications have been a versatile toolbox for the study of RNA interference, structure, and dynamics. Here, we present a chemical method for the facile synthesis of RNA containing C6-modified purine. 6-Iodopurine, as a postsynthetic building block with high reactivity, was used for metal-free construction of C-N, C-O, and C-S bonds under mild conditions and C-C bond formation by Suzuki-Miyaura cross-coupling. Our strategy provides a convenient approach for the synthesis of various RNA modifications, especially for oligonucleotides containing specific structures.
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Affiliation(s)
- Yalun Xie
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Zhentian Fang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Wei Yang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Zhiyong He
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Kun Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Panpan Heng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Baoshan Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xiang Zhou
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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17
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Kubota K, Endo T, Uesugi M, Hayashi Y, Ito H. Solid-State C-N Cross-Coupling Reactions with Carbazoles as Nitrogen Nucleophiles Using Mechanochemistry. CHEMSUSCHEM 2022; 15:e202102132. [PMID: 34816600 DOI: 10.1002/cssc.202102132] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/19/2021] [Indexed: 06/13/2023]
Abstract
The palladium-catalyzed solid-state C-N cross-coupling of carbazoles with aryl halides via a high-temperature ball-milling technique has been reported. This reaction allowed simple, fast, and efficient synthesis of N-arylcarbazole derivatives in good to excellent yields without the use of large amounts of organic solvents in air. Importantly, the developed solid-state coupling approach enabled the cross-coupling of poorly soluble aryl halides with large polyaromatic structures that are barely reactive under conventional solution-based conditions.
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Affiliation(s)
- Koji Kubota
- Division of Applied Chemistry Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Tsubura Endo
- Division of Applied Chemistry Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Minami Uesugi
- Division of Applied Chemistry Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Yuta Hayashi
- Division of Applied Chemistry Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Hajime Ito
- Division of Applied Chemistry Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
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18
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Van Emelen L, Henrion M, Lemmens R, De Vos D. C–N coupling reactions with arenes through C–H activation: the state-of-the-art versus the principles of green chemistry. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01827b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we discuss the state-of-the-art in arene C–N coupling through C–H activation and to what extent it complies with the principles of green chemistry, with a focus on heterogeneously catalysed systems.
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Affiliation(s)
- Lisa Van Emelen
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Mickaël Henrion
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Robin Lemmens
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Dirk De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
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19
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Wang F, Han Y, Yu L, Zhu D. Decarboxylative Amination of Benzoic Acids Bearing Electron-Donating Substituents and Non-Activated Amines. Org Chem Front 2022. [DOI: 10.1039/d2qo00453d] [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
Efficient methods for decarboxylative activation of benzoic acids into great valuable products are highly sought after. Here we report a highly desirable and straightforward decarboxylative amination of readily available benzoic...
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20
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M. Honnanayakanavar J, Owk O, Suresh S. Recent Advances in the Tandem Copper-Catalyzed Ullmann-Goldberg N-Arylation–Cyclization Strategies. Org Biomol Chem 2022; 20:2993-3028. [DOI: 10.1039/d2ob00082b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N‒Aryl bond formation under copper catalysis has been playing a pivotal role and has been extensively used as a key step in the total syntheses of several therapeutic molecules. The...
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21
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Wang D, Huang H, Zhu X. Development of Anthrazoline Photocatalyst for Promoting Amination and Amidation Reactions. Chem Commun (Camb) 2022; 58:3529-3532. [DOI: 10.1039/d1cc07315j] [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
In this work, we report the synthesis, optical and electrochemical properties of a series of organophotocatalysts bearing anthrazoline framework, as well as demonstrate their catalytic competencies in promoting C-N bond...
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22
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Li C, Zhang Y, Sun W. Nickel-Catalyzed Paired Electrochemical Cross-Coupling of Aryl Halides with Nucleophiles. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1581-0934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractElectrochemistry has recently gained increased attention as a versatile strategy for achieving challenging transformations at the forefront of synthetic organic chemistry. However, most electrochemical transformations only employ one electrode (anodic oxidation or cathodic reduction) to afford the desired products, while the chemistry that occurs at the counter electrode yields stoichiometric waste. In contrast, paired electrochemical reactions can synchronously utilize the anodic and cathodic reactions to deliver the desired product, thus improving the atom economy and energy efficiency of the electrolytic process. This review gives an overview of recent advances in nickel-catalyzed paired electrochemical cross-coupling reactions of aryl/alkenyl halides with different nucleophiles.1 Introduction2 Nickel-Catalyzed Cross-Coupling Reactions2.1 C–C Bond Formation2.2 C–N Bond Formation2.3 C–S/O Bond Formation2.4 C–P Bond Formation3 Conclusion
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Affiliation(s)
- Chao Li
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University
- National Institute of Biological Sciences
| | - Yong Zhang
- Academy for Advanced Interdisciplinary Studies, Peking University
- National Institute of Biological Sciences
| | - Wenxuan Sun
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University
- National Institute of Biological Sciences
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23
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Moradi Z, Ghorbani-Choghamarani A. Design and synthesis of Fe 3O 4@SiO 2@KIT-6@DTZ-Pd 0 as a new and efficient mesoporous magnetic catalyst in carbon-carbon cross-coupling reactions. Sci Rep 2021; 11:23967. [PMID: 34907281 PMCID: PMC8671489 DOI: 10.1038/s41598-021-03485-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/03/2021] [Indexed: 11/23/2022] Open
Abstract
In this paper, a new type of mesoporous material based on KIT-6 has been introduced. In this aim, magnetic Fe3O4 nanoparticles and mesoporous silica KIT-6 have been combined to obtain mesoporous MNPs. The prepared magnetic mesoporous catalyst has been applied in different carbon-carbon cross-coupling reactions including Mizoroki-Heck, Suzuki-Miyaura, and Stille reactions. This magnetic mesoporous compound is characterized by various techniques including FT-IR, BET, VSM, SEM, XRD, and TGA.
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Affiliation(s)
- Zahra Moradi
- Department of Chemistry, Faculty of Sciences, Ilam University, P.O. Box 69315516, Ilam, Iran
| | - Arash Ghorbani-Choghamarani
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O. Box 6517838683, Hamedan, Iran.
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24
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Li X, Thakore RR, Takale BS, Gallou F, Lipshutz BH. High Turnover Pd/C Catalyst for Nitro Group Reductions in Water. One-Pot Sequences and Syntheses of Pharmaceutical Intermediates. Org Lett 2021; 23:8114-8118. [PMID: 34613746 DOI: 10.1021/acs.orglett.1c03258] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Commercially available Pd/C can be used as a catalyst for nitro group reductions with only 0.4 mol % Pd loading. The reaction can be performed using either silane as a transfer hydrogenating agent or simply a hydrogen balloon (∼1 atm pressure). With this technology, a series of nitro compounds was reduced to the desired amines in high chemical yields. Both the catalyst and surfactant were recycled several times without loss of reactivity.
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Affiliation(s)
- Xiaohan Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Ruchita R Thakore
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Balaram S Takale
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | | | - Bruce H Lipshutz
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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25
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Zhang H, Chen L, Oderinde MS, Edwards JT, Kawamata Y, Baran PS. Chemoselective, Scalable Nickel‐Electrocatalytic
O
‐Arylation of Alcohols. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107820] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hai‐Jun Zhang
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Longrui Chen
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Martins S. Oderinde
- Department of Discovery Synthesis Bristol Myers Squibb Research & Early Development Princeton NJ 08540 USA
| | | | - Yu Kawamata
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Phil S. Baran
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
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26
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Zhang HJ, Chen L, Oderinde MS, Edwards JT, Kawamata Y, Baran PS. Chemoselective, Scalable Nickel-Electrocatalytic O-Arylation of Alcohols. Angew Chem Int Ed Engl 2021; 60:20700-20705. [PMID: 34288303 PMCID: PMC8429144 DOI: 10.1002/anie.202107820] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/18/2021] [Indexed: 11/12/2022]
Abstract
The formation of aryl-alkyl ether bonds through cross coupling of alcohols with aryl halides represents a useful strategic departure from classical SN 2 methods. Numerous tactics relying on Pd-, Cu-, and Ni-based catalytic systems have emerged over the past several years. Herein we disclose a Ni-catalyzed electrochemically driven protocol to achieve this useful transformation with a broad substrate scope in an operationally simple way. This electrochemical method does not require strong base, exogenous expensive transition metal catalysts (e.g., Ir, Ru), and can easily be scaled up in either a batch or flow setting. Interestingly, e-etherification exhibits an enhanced substrate scope over the mechanistically related photochemical variant as it tolerates tertiary amine functional groups in the alcohol nucleophile.
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Affiliation(s)
- Hai-Jun Zhang
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Longrui Chen
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Martins S Oderinde
- Department of Discovery Synthesis, Bristol Myers Squibb Research & Early Development, Princeton, NJ, 08540, USA
| | | | - Yu Kawamata
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Phil S Baran
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
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27
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Buchwald–Hartwig reaction: an update. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02834-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Nakagawa M, Nagao K, Ikeda Z, Reynolds M, Ibáñez I, Wang J, Tokunaga N, Sasaki Y, Ohmiya H. Organophotoredox‐Catalyzed Decarboxylative N‐Alkylation of Sulfonamides. ChemCatChem 2021. [DOI: 10.1002/cctc.202100803] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Masanari Nakagawa
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi, Kanazawa 920-1192 Japan
| | - Kazunori Nagao
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi, Kanazawa 920-1192 Japan
| | - Zenichi Ikeda
- Research Takeda Pharmaceutical Company Limited Fujisawa, Kanagawa 251-8555 Japan
| | - Matthew Reynolds
- Research Takeda Pharmaceutical Company Limited Fujisawa, Kanagawa 251-8555 Japan
| | - Ignacio Ibáñez
- Research Takeda Pharmaceutical Company Limited Fujisawa, Kanagawa 251-8555 Japan
| | - Junsi Wang
- Research Takeda Pharmaceutical Company Limited Fujisawa, Kanagawa 251-8555 Japan
| | - Norihito Tokunaga
- Research Takeda Pharmaceutical Company Limited Fujisawa, Kanagawa 251-8555 Japan
| | - Yusuke Sasaki
- Research Takeda Pharmaceutical Company Limited Fujisawa, Kanagawa 251-8555 Japan
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences Graduate School of Medical Sciences Kanazawa University Kakuma-machi, Kanazawa 920-1192 Japan
- JST PRESTO Kawaguchi, Saitama 332-0012 Japan
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29
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Ouyang JS, Liu S, Pan B, Zhang Y, Liang H, Chen B, He X, Chan WTK, Chan ASC, Sun TY, Wu YD, Qiu L. A Bulky and Electron-Rich N-Heterocyclic Carbene–Palladium Complex (SIPr)Ph2Pd(cin)Cl: Highly Efficient and Versatile for the Buchwald–Hartwig Amination of (Hetero)aryl Chlorides with (Hetero)aryl Amines at Room Temperature. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01929] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jia-Sheng Ouyang
- School of Chemistry, Guangdong Key Lab of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Number 135 Xingangxi Road, Guangzhou 510275, China
| | - Siqi Liu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Bendu Pan
- School of Chemistry, Guangdong Key Lab of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Number 135 Xingangxi Road, Guangzhou 510275, China
| | - Yaqi Zhang
- School of Chemistry, Guangdong Key Lab of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Number 135 Xingangxi Road, Guangzhou 510275, China
| | - Hao Liang
- School of Chemistry, Guangdong Key Lab of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Number 135 Xingangxi Road, Guangzhou 510275, China
| | - Bin Chen
- School of Chemistry, Guangdong Key Lab of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Number 135 Xingangxi Road, Guangzhou 510275, China
| | - Xiaobo He
- School of Chemistry, Guangdong Key Lab of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Number 135 Xingangxi Road, Guangzhou 510275, China
| | - Wesley Ting Kwok Chan
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Albert S. C. Chan
- School of Chemistry, Guangdong Key Lab of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Number 135 Xingangxi Road, Guangzhou 510275, China
| | - Tian-Yu Sun
- Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Yun-Dong Wu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- Shenzhen Bay Laboratory, Shenzhen, 518132, China
- Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Liqin Qiu
- School of Chemistry, Guangdong Key Lab of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Number 135 Xingangxi Road, Guangzhou 510275, China
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30
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Synthesis and characterization of new secondary benzylamines derivatives of aryl-himachalene. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01563-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Sharma R, Yadav MR. Recent developments in decarboxylative C(aryl)-X bond formation from (hetero)aryl carboxylic acids. Org Biomol Chem 2021; 19:5476-5500. [PMID: 34076025 DOI: 10.1039/d1ob00675d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Decarboxylative coupling reactions using readily available (hetero)aryl carboxylic acids are a highly efficient approach for the formation of new C-C and C-X bonds. These decarboxylative coupling reactions eliminate CO2 as a by-product, resulting in a greener and environmentally more benign approach than conventional coupling reactions. In this review, we summarize the recent developments in ipso-decarboxylative C-X (X = O/N/halo/S/Se/P/CN) bond formations using (hetero)aryl carboxylic acids. Furthermore, we highlight the current limitations and future research opportunities of aryl-decarboxylative coupling reactions.
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Affiliation(s)
- Ruchi Sharma
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
| | - M Ramu Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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32
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Kucharek M, Danel A. Palladium-catalyzed amino group arylation of 1,3-disubstituted 1H-pyrazol-5-amine based on Buchwald–Hartwig reaction. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02961-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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33
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Palladium-catalyzed highly regioselective Buchwald-Hartwig amination of 5-substituted-1,2,3-triiodobenzene: Facile synthesis of 2,3-diiodinated N-arylanilines as potential anti-inflammatory candidates. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Baldwin AF, Caporello MA, Chen G, Goetz AE, Hu W, Jin C, Knopf KM, Li Z, Lu CV, Monfette S, Puchlopek-Dermenci ALA, Shi F. Kilogram-Scale Preparation of an Aminopyrazole Building Block via Copper-Catalyzed Aryl Amidation. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Aaron F. Baldwin
- Analytical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Michaella A. Caporello
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Guoyong Chen
- Shanghai STA Pharmaceutical R&D Co. Ltd., #90 Delin Road, WaiGaoQiao Free Trade Zone, Shanghai 200131, China
| | - Adam E. Goetz
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Weifeng Hu
- Shanghai STA Pharmaceutical R&D Co. Ltd., #90 Delin Road, WaiGaoQiao Free Trade Zone, Shanghai 200131, China
| | - Chengfeng Jin
- Shanghai STA Pharmaceutical R&D Co. Ltd., #90 Delin Road, WaiGaoQiao Free Trade Zone, Shanghai 200131, China
| | - Kevin M. Knopf
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Zhifeng Li
- Shanghai STA Pharmaceutical R&D Co. Ltd., #90 Delin Road, WaiGaoQiao Free Trade Zone, Shanghai 200131, China
| | - Cuong V. Lu
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Sebastien Monfette
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Angela L. A. Puchlopek-Dermenci
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Feng Shi
- Shanghai STA Pharmaceutical R&D Co. Ltd., #90 Delin Road, WaiGaoQiao Free Trade Zone, Shanghai 200131, China
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35
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Ni Y, Wan X, Zuo H, Bashir MA, Liu Y, Yu H, Liao RZ, Wu G, Zhong F. Iron-catalyzed cross-dehydrogenative C–H amidation of benzofurans and benzothiophenes with anilines. Org Chem Front 2021. [DOI: 10.1039/d0qo01651a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient iron-catalyzed radical cross-dehydrogenative aromatic C–H amidation provides a straightforward access to structurally diverse diarylamine derivatives incorporating benzofuran/benzothiophene motifs.
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Affiliation(s)
- Yang Ni
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Xiang Wan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Honghua Zuo
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Muhammad Adnan Bashir
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Yu Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Huaibin Yu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Rong-Zhen Liao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Guojiao Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Fangrui Zhong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
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36
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Kundu A, Kumar VV, Anthony SP. Metal-organic frameworks derived CuONPs@C nanocatalysts for synthesizing optoelectronic triarylamine molecules. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Sk MR, Bera SS, Basuli S, Metya A, Maji MS. Recent Progress in the C−N Bond Formation via High‐Valent Group 9 Cp*M(III)‐Catalyzed Directed sp
2
C−H Activation. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000367] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Md Raja Sk
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Sourav Sekhar Bera
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Suchand Basuli
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Abhisek Metya
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Modhu Sudan Maji
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
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38
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Falk E, Makai S, Delcaillau T, Gürtler L, Morandi B. Design and Scalable Synthesis of
N
‐Alkylhydroxylamine Reagents for the Direct Iron‐Catalyzed Installation of Medicinally Relevant Amines**. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008247] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Eric Falk
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Szabolcs Makai
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Tristan Delcaillau
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Laura Gürtler
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
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39
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Falk E, Makai S, Delcaillau T, Gürtler L, Morandi B. Design and Scalable Synthesis of
N
‐Alkylhydroxylamine Reagents for the Direct Iron‐Catalyzed Installation of Medicinally Relevant Amines**. Angew Chem Int Ed Engl 2020; 59:21064-21071. [DOI: 10.1002/anie.202008247] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Eric Falk
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Szabolcs Makai
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Tristan Delcaillau
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Laura Gürtler
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
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40
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Osinubi A, Izunobi J, Bao X, Asekun O, Kong J, Gui C, Familoni O. Synthesis and in vitro anticancer activities of substituted N-(4'-nitrophenyl)-l-prolinamides. ROYAL SOCIETY OPEN SCIENCE 2020; 7:200906. [PMID: 33047051 PMCID: PMC7540745 DOI: 10.1098/rsos.200906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Prolinamides are present in secondary metabolites and have wide-ranging biological properties as well as antimicrobial and cytotoxic activities. N-(4'-substituted phenyl)-l-prolinamides 4a-4w were synthesized in two steps, starting from the condensation of p-fluoronitrobenzene 1a-1b with l-proline 2a-2b, under aqueous-alcoholic basic conditions to afford N-aryl-l-prolines 3a-3c, which underwent amidation via a two-stage, one-pot reaction involving SOCl2 and amines, to furnish l-prolinamides in 20-80% yield. The cytotoxicities of 4a-4w against four human carcinoma cell lines (SGC7901, HCT-116, HepG2 and A549) were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay; with good tumour inhibitory activities (79.50 ± 1.24%-50.04 ± 1.45%) against HepG2. 4a exhibited the best anti-tumour activity against A549 with percentage cell inhibition of 95.41 ± 0.67% at 100 µM. Likewise, 4s (70.13 ± 3.41%) and 4u (83.36 ± 1.70%) displayed stronger antineoplastic potencies against A549 than the standard, 5-fluorouracil (64.29 ± 2.09%), whereas 4a (93.33 ± 1.36%) and 4u (81.29 ± 2.32%) outperformed the reference (81.20 ± 0.08%) against HCT-116. SGC7901 showed lower percentage cell viabilities with 4u (8.02 ± 1.54%) and 4w (27.27 ± 2.38%). These results underscore the antiproliferative efficacies of l-prolinamides while exposing 4a and 4u as promising broad-spectrum anti-cancer agents. Structure-activity relationship studies are discussed.
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Affiliation(s)
- Adejoke Osinubi
- Department of Chemistry, University of Lagos, Akoka-Yaba, Lagos, Nigeria
- College of Chemistry, Chemical Engineering and Material Science, Soochow University Suzhou, Jiangsu 215123, People's Republic of China
- Chemical Sciences Department, College of Science and Information Technology, Tai Solarin University of Education, P.M.B. 2118, Ijebu Ode, Ogun Postal, Nigeria
| | - Josephat Izunobi
- Department of Chemistry, University of Lagos, Akoka-Yaba, Lagos, Nigeria
| | - Xiaoguang Bao
- College of Chemistry, Chemical Engineering and Material Science, Soochow University Suzhou, Jiangsu 215123, People's Republic of China
| | - Olayinka Asekun
- Department of Chemistry, University of Lagos, Akoka-Yaba, Lagos, Nigeria
| | - Jiehong Kong
- College of Pharmaceutical Sciences, Soochow University Suzhou, Jiangsu 215123, People's Republic of China
| | - Chunshan Gui
- College of Pharmaceutical Sciences, Soochow University Suzhou, Jiangsu 215123, People's Republic of China
| | - Oluwole Familoni
- Department of Chemistry, University of Lagos, Akoka-Yaba, Lagos, Nigeria
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41
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Pal R, Mukhopadhyay C. Microwave-assisted Carbon-carbon and Carbon-heteroatom Cross-coupling Reactions in Organic Synthesis. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213335607666200310121337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Conventionally, the organic reactions are accomplished by conductive heating with an external
heat source like an oil bath. On the contrary, since its inception, the application of microwave
irradiation is growing as a suitable alternate heating method in organic synthesis. Microwave heating
considerably reduces the reaction time without promoting any side reactions. The fundamental synthetic
organic chemistry majorly deals with transition-metal-catalyzed C–C and C–heteroatom bond
formation reactions. It is one of the most important methods in contemporary chemistry resulting in a
tremendous increment in the applications of these reactions during the last few years. This field has
been acknowledged with a number of Nobel Prizes during the last decade (2001, 2005 and 2010). A
considerable effort has been done on the continuous development of new ligands and catalysts as
well as an increased understanding of the mechanisms for the improvement of the reaction condition.
This review focuses on some of the latest developments in the area of cross-coupling reactions aided
by microwave irradiation.
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Affiliation(s)
- Rammyani Pal
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
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42
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Yao H, Xie B, Zhong X, Jin S, Lin S, Yan Z. Copper-catalyzed direct amination of benzylic hydrocarbons and inactive aliphatic alkanes with arylamines. Org Biomol Chem 2020; 18:3263-3268. [PMID: 32301941 DOI: 10.1039/d0ob00491j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new synthetic method toward direct C-N bond formation through saturated C-H amination of benzylic hydrocarbons and inactive aliphatic alkanes with primary aromatic amines under an inexpensive catalyst/oxidant (Cu/DTBP) system has been developed. Both aminopyridines and anilines could react smoothly with primary and secondary benzylic C-H substrates or cyclohexane to form the corresponding aromatic secondary amines in moderate to good yields. This protocol has the advantages of wide functional group tolerance and use of readily available raw materials.
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Affiliation(s)
- Hua Yao
- Department of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Bo Xie
- Department of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Xiaoyang Zhong
- Department of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Shengzhou Jin
- Department of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Sen Lin
- Department of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
| | - Zhaohua Yan
- Department of Chemistry, Nanchang University, No. 999, Xuefu Rd., Nanchang, 330031, P. R. China.
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43
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Ikawa T, Masuda S, Akai S. One‐Pot Generation of Benzynes from Phenols: Formation of Primary Anilines by the Deoxyamination of Phenols. Chemistry 2020; 26:4320-4332. [DOI: 10.1002/chem.201904987] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Takashi Ikawa
- Graduate School of Pharmaceutical Sciences Osaka University Yamadaoka 1–6 Suita Osaka 565-0871 Japan
| | - Shigeaki Masuda
- Graduate School of Pharmaceutical Sciences Osaka University Yamadaoka 1–6 Suita Osaka 565-0871 Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences Osaka University Yamadaoka 1–6 Suita Osaka 565-0871 Japan
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44
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Chen YC, Faver JC, Ku AF, Miklossy G, Riehle K, Bohren KM, Ucisik MN, Matzuk MM, Yu Z, Simmons N. C-N Coupling of DNA-Conjugated (Hetero)aryl Bromides and Chlorides for DNA-Encoded Chemical Library Synthesis. Bioconjug Chem 2020; 31:770-780. [PMID: 32019312 PMCID: PMC7086399 DOI: 10.1021/acs.bioconjchem.9b00863] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
![]()
DNA-encoded
chemical library (DECL) screens are a rapid and economical
tool to identify chemical starting points for drug discovery. As a
robust transformation for drug discovery, palladium-catalyzed C–N
coupling is a valuable synthetic method for the construction of DECL
chemical matter; however, currently disclosed methods have only been
demonstrated on DNA-attached (hetero)aromatic iodide and bromide electrophiles.
We developed conditions utilizing an N-heterocyclic
carbene–palladium catalyst that extends this reaction to the
coupling of DNA-conjugated (hetero)aromatic chlorides with (hetero)aromatic
and select aliphatic amine nucleophiles. In addition, we evaluated
steric and electronic effects within this catalyst series, carried
out a large substrate scope study on two representative (hetero)aryl
bromides, and applied this newly developed method within the construction
of a 63 million-membered DECL.
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Affiliation(s)
- Ying-Chu Chen
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - John C Faver
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Angela F Ku
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Gabriella Miklossy
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Kevin Riehle
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Kurt M Bohren
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Melek N Ucisik
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Martin M Matzuk
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Zhifeng Yu
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Nicholas Simmons
- Center for Drug Discovery, Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas 77030, United States
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45
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Malavade V, Patil M, Patil M. Scope, Kinetics, and Mechanism of “On Water” Cu Catalysis in the C-N Cross-Coupling Reactions of Indole Derivatives. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901542] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Vrunda Malavade
- UM-DAE Centre for Excellence in Basic Sciences; University of Mumbai; Vidyanagari Campus, Kalina, Santacruz (East) Mumbai 400098 India
| | - Manish Patil
- UM-DAE Centre for Excellence in Basic Sciences; University of Mumbai; Vidyanagari Campus, Kalina, Santacruz (East) Mumbai 400098 India
| | - Mahendra Patil
- UM-DAE Centre for Excellence in Basic Sciences; University of Mumbai; Vidyanagari Campus, Kalina, Santacruz (East) Mumbai 400098 India
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46
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Zhao B, Shang R, Wang GZ, Wang S, Chen H, Fu Y. Palladium-Catalyzed Dual Ligand-Enabled Alkylation of Silyl Enol Ether and Enamide under Irradiation: Scope, Mechanism, and Theoretical Elucidation of Hybrid Alkyl Pd(I)-Radical Species. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04699] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bin Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Rui Shang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Guang-Zu Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shaohong Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hui Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei, Anhui 230026, China
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47
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Henry MC, McGrory R, Faggyas RJ, Mostafa MAB, Sutherland A. One-pot ortho-amination of aryl C-H bonds using consecutive iron and copper catalysis. Org Biomol Chem 2019; 17:4629-4639. [PMID: 31020305 DOI: 10.1039/c9ob00712a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot approach for ortho-coupling of arenes with non-actived N-nucleophiles has been developed using sequential iron and copper catalysis. Regioselective ortho-activation of anisoles, anilines and phenols was achieved through iron(iii) triflimide catalysed iodination, followed by a copper(i)-catalysed, ligand-assisted coupling reaction with N-heterocycle, amide and sulfonamide-based nucleophiles. The synthetic utility of this one-pot, two-step method for the direct amination of ortho-aryl C-H bonds was demonstrated with the late-stage functionalisation of 3,4-dihydroquinolin-2-ones. This allowed the preparation of a TRIM24 bromodomain inhibitor and a series of novel analogues.
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Affiliation(s)
- Martyn C Henry
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
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48
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Roy S, Dutta MM, Sarma MJ, Phukan P. Accelerating Effect of DMAP on CuI Catalyzed Buchwald‐Hartwig C‐N Coupling: Mechanistic Insight to the Reaction Pathway. ChemistrySelect 2019. [DOI: 10.1002/slct.201903896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Subhasish Roy
- Department of ChemistryGauhati University Guwahati 781014, Assam India
| | - Mintu Maan Dutta
- Department of ChemistryGauhati University Guwahati 781014, Assam India
| | - Manas Jyoti Sarma
- Department of ChemistryGauhati University Guwahati 781014, Assam India
| | - Prodeep Phukan
- Department of ChemistryGauhati University Guwahati 781014, Assam India
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49
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Hu X, Zhang G, Nie L, Kong T, Lei A. Electrochemical oxidation induced intermolecular aromatic C-H imidation. Nat Commun 2019; 10:5467. [PMID: 31784522 PMCID: PMC6884519 DOI: 10.1038/s41467-019-13524-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/12/2019] [Indexed: 01/05/2023] Open
Abstract
The dehydrogenative aryl C-H/N-H cross-coupling is a powerful synthetic methodology to install nitrogen functionalities into aromatic compounds. Herein, we report an electrochemical oxidation induced intermolecular cross-coupling between aromatics and sulfonimides with high regioselectivity through N-radical addition pathway under external-oxidant-free and catalyst-free conditions. A wide variety of arenes, heteroarenes, alkenes and sulfonimides are applicable scaffolds in this transformation. In addition, aryl sulfonamides or amines (aniline derivatives) can be obtained through different deprotection process. The cyclic voltammetry mechanistic study indicates that the N-centered imidyl radicals are generated via proton-coupled electron transfer event jointly mediated by tetrabutylammonium acetate and anode oxidation process. The dehydrogenative C-H/N-H cross-coupling serves to install nitrogen functionalities into arenes with the highest atom economy. Here, the authors report an electrochemical cross-coupling between aromatics and sulfonimides through an N-radical addition pathway under oxidant- and catalyst-free conditions.
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Affiliation(s)
- Xia Hu
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, People's Republic of China
| | - Guoting Zhang
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, People's Republic of China
| | - Lei Nie
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, People's Republic of China
| | - Taige Kong
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, People's Republic of China
| | - Aiwen Lei
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, People's Republic of China.
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50
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Ma D, Zhai S, Wang Y, Liu A, Chen C. Synthetic Approaches for C-N Bonds by TiO 2 Photocatalysis. Front Chem 2019; 7:635. [PMID: 31620428 PMCID: PMC6759479 DOI: 10.3389/fchem.2019.00635] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 09/02/2019] [Indexed: 11/18/2022] Open
Abstract
Nitrogen-containing organic compounds possess the most important status in drug molecules and agricultural chemicals. More than 80% currently used drugs have at least a C-N bond. The green and mild methodology to prepare diverse C-N bonds to replace traditional harsh preparation protocols is always a hotspot in modern synthetic chemistry. TiO2-based nanomaterials, considered as environmentally benign, stable, and powerful photocatalysts, have recently been applied in some certain challenging organic synthesis including construction of useful C-N compounds under mild conditions that are impossible to complete by conventional catalysis. This mini review would present state-of-the-art paragon examples of TiO2 photocatalyzed C-N bond formations. The discussion would be divided into two main sections: (1) N-alkylation of amines and (2) C-N formation in heterocycle synthesis. Especially, the mechanism of TiO2 photocatalytic C-N bond formation through activating alcohol into C=O by photo-induced hole followed by C=NH-R formation and finally hydrogenating C=NH-R into C-N bonds by combination of photo-induced electron/H+ assisted with loaded-Pt would be covered in detail. We believe that the mini-review will bring new insights into TiO2 photocatalysis applied to construct challenging organic compounds through enabling photo-induced hole and electron in a concerted way on coupling two substrate molecules together with respect to their conventionally independent catalysis behavior.
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Affiliation(s)
- Dongge Ma
- Key Laboratory of Cosmetic of China National Light Industry, School of Science, Beijing Technology and Business University, Beijing, China
| | - Shan Zhai
- Key Laboratory of Cosmetic of China National Light Industry, School of Science, Beijing Technology and Business University, Beijing, China
| | - Yi Wang
- Key Laboratory of Cosmetic of China National Light Industry, School of Science, Beijing Technology and Business University, Beijing, China
| | - Anan Liu
- Basic Experimental Center for Natural Science, University of Science and Technology Beijing, Beijing, China
| | - Chuncheng Chen
- Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
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