1
|
Xiang S, Ni Q, Liu Q, Zhou S, Wang H, Zhou Y, Liu Y. Approach to Access Benzo[ j]phenanthridinones from 1,7-Enynes and Aryldiazonium Salts via a Domino Radical Relay Process Enabled by a P/N-Heteroleptic Cu(I)-Photosensitizer. J Org Chem 2023; 88:13248-13261. [PMID: 37616100 DOI: 10.1021/acs.joc.3c01509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
A mild approach for the synthesis of benzo[j]phenanthridin-6(5H)-one derivatives from 1,7-enynes and aryldiazonium salts has been successfully developed involving a domino radical relay process enabled by a heteroleptic Cu(I)-photosensitizer under visible-light-driven photocatalytic conditions. Mechanistic studies disclosed that the oxidative quenching of the excited state of PS 4 with aryldiazonium salts via an SET process generated aryl radicals, which could play a radical initiator-terminator dual role within the whole radical relay process, namely, at the initial step acting as a radical donor to trigger the radical addition to the olefin moieties of 1,7-enynes while at the final stage serving as a radical acceptor to complete the cyclization.
Collapse
Affiliation(s)
- Siwei Xiang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Qibo Ni
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Qian Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Sicheng Zhou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Huihui Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yan Zhou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yunkui Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| |
Collapse
|
2
|
Nandikolla A, Khetmalis YM, Venkata Siva Kumar B, Chandu A, Karan Kumar B, Shetye G, Ma R, Murugesan S, Franzblau SG, Chandra Sekhar KVG. Design, synthesis and biological evaluation of phenanthridine amide and 1,2,3-triazole analogues against Mycobacterium tuberculosis. RSC Med Chem 2023; 14:1549-1561. [PMID: 37593576 PMCID: PMC10429663 DOI: 10.1039/d3md00115f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/29/2023] [Indexed: 08/19/2023] Open
Abstract
The phenanthridine core exhibits antitubercular activity, according to reports from the literature. Several 1,2,3-triazole-based heterocyclic compounds are well-known antitubercular agents. A series of twenty-five phenanthridine amide and 1,2,3-triazole derivatives are synthesized and analyzed using ESI-MS, 1HNMR, and 13CNMR on the basis of our earlier findings that phenanthridine and 1,2,3-triazoles shown good antitubercular activity. The synthesized phenanthridine amide and 1,2,3-triazole analogues were tested in vitro against Mycobacterium tuberculosis H37Rv and minimum inhibitory concentration (MIC) values were determined utilizing non-replicating and replicating low-oxygen recovery assay (LORA) and microplate Alamar Blue assay (MABA) methodologies. The phenanthridine amide derivative PA-01 had an MIC of 61.31 μM in MABA and 62.09 μM in the LORA technique, showing intense anti-TB activity. Amongst the phenanthridine triazole derivatives, PT-09, with MICs of 41.47 and 78.75 μM against the tested strain of Mtb in both MABA and LORA was the most active one. The final analogues' drug-likeness is predicted using absorption, distribution, metabolism, excretion, and toxicity (ADMET) studies. The most active compounds PA-01 and PT-09 were further subjected to in silico docking studies. Using the Glide module of Schrodinger, molecular docking analysis was carried out to estimate the plausible binding pattern of PA-01 and PT-09 at the active site of Mycobacterial DNA topoisomerase II (PDB code: 5BS8). Further, molecular dynamics studies of PA-01 and PT-09 were also carried out.
Collapse
Affiliation(s)
- Adinarayana Nandikolla
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal Hyderabad - 500078 Telangana India +91 40 66303527
| | - Yogesh Mahadu Khetmalis
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal Hyderabad - 500078 Telangana India +91 40 66303527
| | - Boddupalli Venkata Siva Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal Hyderabad - 500078 Telangana India +91 40 66303527
| | - Ala Chandu
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani Pilani Campus Pilani-333031 Rajasthan India
| | - Banoth Karan Kumar
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani Pilani Campus Pilani-333031 Rajasthan India
| | - Gauri Shetye
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago 833 South Wood Street Chicago IL 60612 USA
| | - Rui Ma
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago 833 South Wood Street Chicago IL 60612 USA
| | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani Pilani Campus Pilani-333031 Rajasthan India
| | - Scott G Franzblau
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago 833 South Wood Street Chicago IL 60612 USA
| | - Kondapalli Venkata Gowri Chandra Sekhar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal Hyderabad - 500078 Telangana India +91 40 66303527
| |
Collapse
|
3
|
Ma YJ, Yuan ZH, Gao P, Duan XH, Xin H, Liu L, Guo LN. Divergent Construction of Azaheterocycles via Alkoxyl Radical-Triggered C-C Bond Cleavage/Cyclization of N-Functionalized Acrylamides. J Org Chem 2023; 88:9927-9940. [PMID: 37432753 DOI: 10.1021/acs.joc.3c00695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
An array of redox-neutral alkylation/cyclization cascade reactions of N-functionalized acrylamides with cycloalkyl hydroperoxides were achieved via the alkoxyl radical-triggered C-C bond cleavage. Through adjusting the radical acceptors on the N atom, a variety of keto-alkylated chain-containing azaheterocycles, including indolo[2,1-a]isoquinolin-6(5H)-ones, quinoline-2,4-diones, and pyrido[4,3,2-gh]phenanthridines were constructed by a one-pot procedure with good yields and excellent functional group tolerance.
Collapse
Affiliation(s)
- Ying-Jie Ma
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Zi-Hang Yuan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Pin Gao
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Hong Xin
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Le Liu
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Li-Na Guo
- Department of Chemistry, School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| |
Collapse
|
4
|
Synthesis and characterization of eggshell membrane polymer-TiO2 nanocomposite for newly synthesized ionic liquid release. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-022-02584-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
5
|
Ma X, Wang Q, Wu J, Zhang L, Sun A, Wang Z. NHC-alcohol adduct-mediated photocatalytic deoxygenation for the synthesis of 6-phenanthridine derivatives. Org Biomol Chem 2022; 20:5393-5396. [PMID: 35748810 DOI: 10.1039/d2ob00814a] [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
NHC-alcohol adduct-mediated deoxygenation of alcohols under photocatalytic conditions is described. This process provides various alkyl radicals, which can react with 2-isocyanobiaryls to afford 6-substituted phenanthridine derivatives in moderate to good yields. This method offered the first example of directly using alcohols as radical sources for 6-phenanthridine synthesis.
Collapse
Affiliation(s)
- Xueji Ma
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China.
| | - Qingyun Wang
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China.
| | - Jinge Wu
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China.
| | - Liyuan Zhang
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China.
| | - Aili Sun
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China.
| | - Zhanyong Wang
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China.
| |
Collapse
|
6
|
Manna SK, Chakraborty S, Adak AK, Samanta S. A New Benzimidazolium Ion‐Based “Turn Off” Fluorescent Compound for Detection of Fe
3+
Ion and Its Application towards Antimicrobial, Antibiofilm and Cell Imaging Study. ChemistrySelect 2022. [DOI: 10.1002/slct.202200729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | | | - Arup Kumar Adak
- Department of Chemistry Bidhannagar College Kolkata 700064 India
| | | |
Collapse
|
7
|
Tripathy AR, A RR, Kumar A, Yatham VR. Photocatalyzed alkylative cyclization of 2-isocyanobiphenyls with unactivated alkyl iodides. Org Biomol Chem 2022; 20:3136-3144. [PMID: 35343547 DOI: 10.1039/d2ob00314g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein report the first photocatalyzed radical cascade cyclization of 2-isocyanobiaryls with unactivated alkyl iodides. This simple protocol operates under mild reaction conditions and affords 6-alkyl phenanthridines in good yields. To elucidate the reaction mechanism, Stern-Volmer quenching studies were carried out and these studies revealed that the photocatalyst is not directly involved in a single electron transfer process with the alkyl iodide.
Collapse
Affiliation(s)
- Alisha Rani Tripathy
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM), 695551, India.
| | - Rizwana Rahmathulla A
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM), 695551, India.
| | - Amit Kumar
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM), 695551, India.
| | - Veera Reddy Yatham
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram (IISER-TVM), 695551, India.
| |
Collapse
|
8
|
Swain SS, Pati S, Hussain T. Quinoline heterocyclic containing plant and marine candidates against drug-resistant Mycobacterium tuberculosis: A systematic drug-ability investigation. Eur J Med Chem 2022; 232:114173. [DOI: 10.1016/j.ejmech.2022.114173] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/30/2022] [Accepted: 02/02/2022] [Indexed: 12/22/2022]
|
9
|
Hernández‐Ruiz R, Rubio‐Presa R, Suárez‐Pantiga S, Pedrosa MR, Fernández‐Rodríguez MA, Tapia MJ, Sanz R. Mo-Catalyzed One-Pot Synthesis of N-Polyheterocycles from Nitroarenes and Glycols with Recycling of the Waste Reduction Byproduct. Substituent-Tuned Photophysical Properties. Chemistry 2021; 27:13613-13623. [PMID: 34288167 PMCID: PMC8518888 DOI: 10.1002/chem.202102000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Indexed: 12/26/2022]
Abstract
A catalytic domino reduction-imine formation-intramolecular cyclization-oxidation for the general synthesis of a wide variety of biologically relevant N-polyheterocycles, such as quinoxaline- and quinoline-fused derivatives, and phenanthridines, is reported. A simple, easily available, and environmentally friendly dioxomolybdenum(VI) complex has proven to be a highly efficient and versatile catalyst for transforming a broad range of starting nitroarenes involving several redox processes. Not only is this a sustainable, step-economical as well as air- and moisture-tolerant method, but also it is worth highlighting that the waste byproduct generated in the first step of the sequence is recycled and incorporated in the final target molecule, improving the overall synthetic efficiency. Moreover, selected indoloquinoxalines have been photophysically characterized in cyclohexane and toluene with exceptional fluorescence quantum yields above 0.7 for the alkyl derivatives.
Collapse
Affiliation(s)
- Raquel Hernández‐Ruiz
- Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos s/n09001-BurgosSpain
| | - Rubén Rubio‐Presa
- Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos s/n09001-BurgosSpain
| | - Samuel Suárez‐Pantiga
- Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos s/n09001-BurgosSpain
| | - María R. Pedrosa
- Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos s/n09001-BurgosSpain
| | - Manuel A. Fernández‐Rodríguez
- Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos s/n09001-BurgosSpain
- Current address: Departamento de Química Orgánica y Química InorgánicaCampus Científico-TecnológicoFacultad de FarmaciaUniversidad de AlcaláAutovía A-II, Km 33.128805-Alcalá de HenaresMadridSpain
| | - M. José Tapia
- Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos s/n09001-BurgosSpain
| | - Roberto Sanz
- Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos s/n09001-BurgosSpain
| |
Collapse
|
10
|
Hendrich CM, Senn S, Haas L, Hoffmann MT, Zschieschang U, Greiner LC, Rominger F, Rudolph M, Klauk H, Dreuw A, Hashmi ASK. "Golden" Cascade Cyclization to Benzo[c]-Phenanthridines. Chemistry 2021; 27:14778-14784. [PMID: 34310792 PMCID: PMC8597101 DOI: 10.1002/chem.202102134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Indexed: 12/11/2022]
Abstract
Herein, we describe a gold-catalyzed cascade cyclization of Boc-protected benzylamines bearing two tethered alkyne moieties in a domino reaction initiated by a 6-endo-dig cyclization. The reaction was screened intensively, and the scope was explored, resulting in nine new Boc-protected dihydrobenzo[c]phenanthridines with yields of up to 98 %; even a π-extension and two bidirectional approaches were successful. Furthermore, thermal cleavage of the Boc group and subsequent oxidation gave substituted benzo[c]phenanthridines in up to quantitative yields. Two bidirectional approaches under the optimized conditions were successful, and the resulting π-extended molecules were tested as organic semiconductors in organic thin-film transistors.
Collapse
Affiliation(s)
- Christoph M Hendrich
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Sebastian Senn
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Lea Haas
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Marvin T Hoffmann
- Interdisciplinary Center for Scientific Computing (IWR), Heidelberg University, Im Neuenheimer Feld 205 A, 69120, Heidelberg, Germany
| | - Ute Zschieschang
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - Luca C Greiner
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Hagen Klauk
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing (IWR), Heidelberg University, Im Neuenheimer Feld 205 A, 69120, Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| |
Collapse
|
11
|
Reina A, Dang-Bao T, Guerrero-Ríos I, Gómez M. Palladium and Copper: Advantageous Nanocatalysts for Multi-Step Transformations. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1891. [PMID: 34443727 PMCID: PMC8401531 DOI: 10.3390/nano11081891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 12/13/2022]
Abstract
Metal nanoparticles have been deeply studied in the last few decades due to their attractive physical and chemical properties, finding a wide range of applications in several fields. Among them, well-defined nano-structures can combine the main advantages of heterogeneous and homogeneous catalysts. Especially, catalyzed multi-step processes for the production of added-value chemicals represent straightforward synthetic methodologies, including tandem and sequential reactions that avoid the purification of intermediate compounds. In particular, palladium- and copper-based nanocatalysts are often applied, becoming a current strategy in the sustainable synthesis of fine chemicals. The rational tailoring of nanosized materials involving both those immobilized on solid supports and liquid phases and their applications in organic synthesis are herein reviewed.
Collapse
Affiliation(s)
- Antonio Reina
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Trung Dang-Bao
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam
- Vietnam National University—Ho Chi Minh City (VNU—HCM), Ho Chi Minh City 700000, Vietnam
| | - Itzel Guerrero-Ríos
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Montserrat Gómez
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Toulouse 3—Paul Sabatier, UMR CNRS 5069, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France;
| |
Collapse
|
12
|
Ghosh P, Chowdhury D, Dana S, Baidya M. Transition Metal Catalyzed Free-Amine (-NH 2 ) Directed C-H Bond Activation and Functionalization for Biaryl Frameworks. CHEM REC 2021; 21:3795-3817. [PMID: 34235831 DOI: 10.1002/tcr.202100158] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 12/29/2022]
Abstract
Transition-metal-catalyzed direct transformation of inert C-H bond has revolutionized the arsenal of main-stream organic synthesis, providing a new upfront to forge structurally enriched and biologically relevant scaffolds in a step- and atom-economical way. Past decades have accounted for the major developments in this realm, proclaiming excellent site-selectivity by exploiting a variety of coordinating directing groups (DGs). Consideration of versatile, abundant, sp3 -hybridized free-amine (-NH2 ) functionality for the same purpose has always been a formidable task owing to its innate reactivity. In recent years, free-amine functionality has emerged as a potent DG for a wide range of C-C and C-heteroatom bonds formations and annulation cascades. In this review article, we have discussed the advancements of free-amine directed C-H activation/functionalization reactions towards biaryl frameworks made within a decade (2012 to 2021).
Collapse
Affiliation(s)
- Prasanjit Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu, India
| | - Deepan Chowdhury
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu, India
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu, India
| |
Collapse
|
13
|
López-Mendoza P, Miranda LD. Photocatalytic xanthate-based radical addition/cyclization reaction sequence toward 2-biphenyl isocyanides: synthesis of 6-alkylated phenanthridines. Org Biomol Chem 2021; 18:3487-3491. [PMID: 32347280 DOI: 10.1039/d0ob00136h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A photocatalytic xanthate-based radical addition/cyclization reaction cascade toward 2-biphenylisocyanides is described as a practical and modular approach to 6-alkylated phenanthridines. The use of xanthates as radical precursors allowed the synthesis of diversely 6-substituted phenanthridines. Electrophilic radicals derived from nitriles, aromatic and aliphatic ketones, malonates, and amide derivatives, as well as radicals derived from phthalimidomethyl and benzylic derivatives were successfully introduced. The reaction proceeds under mild conditions without a stoichiometric amount of oxidant. Thirty novel phenanthridine scaffolds were synthesized with yields ranging from 24 to 76%.
Collapse
Affiliation(s)
- Pedro López-Mendoza
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior S. N., Ciudad Universitaria, Coyoacán, Ciudad de México 04510, Mexico.
| | | |
Collapse
|
14
|
Talukdar V, Vijayan A, Kumar Katari N, Radhakrishnan KV, Das P. Recent Trends in the Synthesis and Mechanistic Implications of Phenanthridines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001236] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Vishal Talukdar
- Department of Chemistry Indian Institute of Technology (Indian School of Mines) Dhanbad 826004 India
| | - Ajesh Vijayan
- Department of Chemistry CHRIST (Deemed to be University) Hosur road Bengaluru 560029 India
| | | | - K. V. Radhakrishnan
- CSIR – National Institute for Interdisciplinary Science and Technology Thiruvananthapuram 695019 India
| | - Parthasarathi Das
- Department of Chemistry Indian Institute of Technology (Indian School of Mines) Dhanbad 826004 India
| |
Collapse
|
15
|
Malviya BK, Singh K, Jaiswal PK, Karnatak M, Verma VP, Badsara SS, Sharma S. Catalyst-free synthesis of phenanthridines via electrochemical coupling of 2-isocyanobiphenyls and amines. NEW J CHEM 2021. [DOI: 10.1039/d1nj00250c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
One pot metal-free synthesis of phenanthridines and amides under electrochemical conditions.
Collapse
Affiliation(s)
| | - Karandeep Singh
- Department of Chemistry
- Mohanlal Sukhadia University
- Udaipur
- India
| | - Pradeep K. Jaiswal
- Department of Biochemistry and Biophysics
- Texas A&M University
- College station
- USA
| | | | | | | | | |
Collapse
|
16
|
Dende SK, Korupolu RB, Doddipalla R, Leleti KR. Microwave assisted synthesis of phenanthridine derivatives via Suzuki coupling and condensation. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
17
|
Xue Y, Xue D, He Q, Ge Q, Li W, Shao L. Additive-Free Radical Cascade Reaction of Oxime Esters: Synthesis of Pyrroline-Functionalized Phenanthridines. J Org Chem 2020; 85:12284-12293. [PMID: 32916054 DOI: 10.1021/acs.joc.0c01532] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A variety of dihydropyrrole-functionalized phenanthridines were efficiently synthesized by the metal-free, radical cascade cyclization reaction of 2-isocyanobiphenyls with γ,δ-unsaturated oxime esters. The C-N/C-C/C-C bonds were formed via the oil bath method in a one-pot procedure with broad substrate applicability. The radical process was supported by kinetic isotope effect studies and radical inhibition studies.
Collapse
Affiliation(s)
- Yijie Xue
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 201203, China
| | - Dengqi Xue
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 201203, China.,State Key Laboratory of Medical Neurobiology, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Qian He
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 201203, China
| | - Qianwei Ge
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 201203, China
| | - Wei Li
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 201203, China
| | - Liming Shao
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 201203, China.,State Key Laboratory of Medical Neurobiology, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| |
Collapse
|
18
|
Preparation of phenanthridines from N-(o-arylbenzyl)trifluoromethanesulfonamides with 1,3-diiodo-5,5-dimethylhydantoin. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131503] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
19
|
|
20
|
Guo S, Liu Y, Zhang X, Fan X. Iridium‐Catalyzed Oxidative Annulation of 2‐Arylindoles with Benzoquinone Leading to Indolo[1,2‐
f
]phenanthridin‐6‐ols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000449] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shenghai Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Yangfan Liu
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Xinying Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| | - Xuesen Fan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal University, Xinxiang Henan 453007 People's Republic of China
| |
Collapse
|
21
|
Wadekar K, Aswale S, Yatham VR. PPh 3/NaI driven photocatalytic decarboxylative radical cascade alkylarylation reaction of 2-isocyanobiaryls. RSC Adv 2020; 10:16510-16514. [PMID: 35498830 PMCID: PMC9052874 DOI: 10.1039/d0ra03211e] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/14/2020] [Indexed: 12/13/2022] Open
Abstract
The first triphenylphosphine/sodium iodide driven photocatalytic decarboxylative cascade cyclization of 2-isocyano-biaryls with alkyl N-hydroxyphthalimide (NHP) esters was developed. This operationally simple protocol results in multiple carbon-carbon bond formation under transition metal free conditions, affording a novel and environmentally benign entry to producing 6-alkyl phenanthridines with moderate to good yields.
Collapse
Affiliation(s)
- Ketan Wadekar
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Suraj Aswale
- CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Veera Reddy Yatham
- CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram 695551 India
| |
Collapse
|
22
|
Sivaguru P, Cao S, Babu KR, Bi X. Silver-Catalyzed Activation of Terminal Alkynes for Synthesizing Nitrogen-Containing Molecules. Acc Chem Res 2020; 53:662-675. [PMID: 32078302 DOI: 10.1021/acs.accounts.9b00623] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alkynes are one of the most abundant chemicals in organic chemistry, and therefore the development of catalytic reactions to transform alkynes into other useful functionalities is of great value. In recent decades, extraordinary advances have been made in this area with transition-metal catalysis, and silver-based reagents are ideal for the activation of alkynes. This high reactivity is probably due to the superior π-Lewis acidic, carbophilic behavior of silver(I), allowing it to selectively activate carbon-carbon triple bonds (C≡C) through the formation of a silver-π complex. Within this field, we have been interested in the activation and subsequent reactions of readily accessible terminal alkynes for the synthesis of nitrogen-containing compounds, which has generally received less attention than methods involving internal alkynes. This is possibly due to the lack of suitable reactive reaction partners that are compatible under transition metals. Therefore, a thorough understanding of the factors that influence homogeneous silver catalysis and the identification of the appropriate reaction partners can provide a powerful platform for designing more efficient silver-catalyzed reactions of terminal alkynes. In this context, we envisioned that using readily available, environmentally benign, and inexpensive trimethylsilyl azide (TMSN3) or an isocyanide as the nitrogen-donor would be the key to develop novel reactions of terminal alkynes.This Account describes our efforts since 2013 toward the development of novel silver-catalyzed tandem reactions of terminal alkynes with either TMSN3 or isocyanides for the assembly of various nitrogen-containing compounds. The first section of this Account discusses the initial developments in the silver-catalyzed hydroazidation of terminal alkynes with TMSN3 and the subsequent advances made in our laboratory. We first describe the discovery and experimental and computational mechanistic investigations of silver-catalyzed hydroazidation reactions, which is the most efficient strategy reported to date for accessing vinyl azides. Mechanistic study of this hydroazidation reaction provides an alternative activation mode for terminal alkyne conversion in transition metal catalysis. We then present the chemistry of in situ generated vinyl azides, including one-pot tandem radical addition/cyclization or migration reactions of terminal alkynes to access a variety of nitrogen-containing molecules. Finally, we discuss the one-pot, multistep tandem hydroazidation and 1,2-azide migratory gem-difluorination of terminal alkynes for the synthesis of β-difluorinated alkyl azides. The second section describes the silver-catalyzed coupling reactions between terminal alkynes and isocyanides, which offer a straightforward method for accessing synthetically useful building blocks, such as pyrroles, allenamides, benzofuran, vinyl sulfones, indazolines, propiolonitriles, and pyrazoles. The high efficiency, mild conditions, low cost, broad substrate scope, high chemo- and regioselectivity, step economy, and ecofriendliness of the developed approaches make them attractive and practical. The progress in this area provides guiding principles for designing new reactions of terminal alkynes that can be extended to various nitrogen-containing molecules of interest to medicinal and materials chemists.
Collapse
Affiliation(s)
- Paramasivam Sivaguru
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Shanshan Cao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Kaki Raveendra Babu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| |
Collapse
|
23
|
Fan J, Li L, Zhang J, Xie M. Expeditious synthesis of phenanthridines through a Pd/MnO2-mediated C–H arylation/oxidative annulation cascade from aldehydes, aryl iodides and amino acids. Chem Commun (Camb) 2020; 56:2775-2778. [PMID: 32022095 DOI: 10.1039/d0cc00300j] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The expeditious access to phenanthridines through a Pd/MnO2-mediated arylation/oxidative annulation cascade from aldehydes, aryl iodides and amino acids is described.
Collapse
Affiliation(s)
- Jian Fan
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Li Li
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| |
Collapse
|
24
|
Srivastava A, Singh PK, Ali A, Singh PP, Srivastava V. Recent applications of Rose Bengal catalysis in N-heterocycles: a short review. RSC Adv 2020; 10:39495-39508. [PMID: 35515398 PMCID: PMC9057485 DOI: 10.1039/d0ra07400d] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/18/2020] [Indexed: 11/21/2022] Open
Abstract
The visible light harnessing ability of Rose Bengal, an organic dye, has been extensively employed in organic chemistry over the last few years. In visible light mediated reactions, this photoredox catalyst operates through multiple pathways and has the ability to provide distinctly different and valuable results. The most significant of these results are bond creation, bond functionalization, particularly for C–H and C–heteroatom bonds, and cross couplings. It is crucial to study these cases whenever these bond formations and couplings lead to the formation of heterocyclic compounds or their functionalization. The diverse biological activity and medicinal applications of heterocyclic compounds is an extensively explored area. This review primarily attempts to demonstrate the synthetic potential of Rose Bengal for synthesis and site selective functionalization of nitrogen containing heterocycles. The recent applications of Rose Bengal as a photocatalyst for the synthesis and functionalization of N-heterocycles have been discussed.![]()
Collapse
Affiliation(s)
| | | | - Akram Ali
- Department of Chemistry
- CMP Degree College
- Prayagraj
- India
| | - Praveen P. Singh
- Department of Chemistry
- United College of Engineering and Research
- Prayagraj
- India
| | | |
Collapse
|
25
|
An Y, Zhang BS, Zhang Z, Liu C, Gou XY, Ding YN, Liang YM. A carboxylate-assisted amination/unactivated C(sp2)–H arylation reaction via a palladium/norbornene cooperative catalysis. Chem Commun (Camb) 2020; 56:5933-5936. [DOI: 10.1039/c9cc09265j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A carboxylate-assisted palladium-catalysed Catellani reaction, which is compatible with ortho-amination and unactivated C(sp2)–H arylation, synthesized a series of 1-amino substituted dihydrophenanthridines, phenanthridines and 6H-benzo[c]chromenes.
Collapse
Affiliation(s)
- Yang An
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Bo-Sheng Zhang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zhe Zhang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ce Liu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xue-Ya Gou
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ya-Nan Ding
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| |
Collapse
|
26
|
Fang B, Hou J, Tian J, Yu W, Chang J. Synthesis of phenanthridines by I2-mediated sp3C–H amination. Org Biomol Chem 2020; 18:3312-3323. [DOI: 10.1039/d0ob00433b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An I2-mediated transition-metal-free sp3C–H amination reaction is established for phenanthridine synthesis in an efficient and scalable manner.
Collapse
Affiliation(s)
- Benyao Fang
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| | - Jiao Hou
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| | - Jinyue Tian
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| | - Wenquan Yu
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| | - Junbiao Chang
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- China
| |
Collapse
|
27
|
Mahesh K, Ravi K, Rathod PK, Leelavathi P. Convenient synthesis of quinoline-fused triazolo-azepine/oxepine derivatives through Pd-catalyzed C–H functionalisation of triazoles. NEW J CHEM 2020. [DOI: 10.1039/c9nj05254b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The convenient synthesis of a novel polycyclic fused system comprising three different heterocycles, viz., quinolines, azepines/oxepines and triazoles is presented in high yields.
Collapse
Affiliation(s)
- Kukkamudi Mahesh
- Department of Chemistry
- University College of Science
- Osmania University
- Hyderabad 500 007
- India
| | - Kanakaraju Ravi
- Department of Chemistry
- University College of Science
- Osmania University
- Hyderabad 500 007
- India
| | - Praveen Kumar Rathod
- Department of Chemistry
- University College of Science
- Osmania University
- Hyderabad 500 007
- India
| | - Panaganti Leelavathi
- Department of Chemistry
- University College of Science
- Osmania University
- Hyderabad 500 007
- India
| |
Collapse
|
28
|
Kobayashi E, Kishi A, Togo H. 6-Arylphenanthridines from Aryl o
-Biaryl Ketones with 1,1,1,3,3,3-Hexamethyldisilazane and Molecular Iodine. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901278] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Eiji Kobayashi
- Graduate School of Science; Chiba University; Yayoi-cho 1-33, Inage-ku 263-8522 Chiba Japan
| | - Atsushi Kishi
- Graduate School of Science; Chiba University; Yayoi-cho 1-33, Inage-ku 263-8522 Chiba Japan
| | - Hideo Togo
- Graduate School of Science; Chiba University; Yayoi-cho 1-33, Inage-ku 263-8522 Chiba Japan
| |
Collapse
|
29
|
Chi H, Li H, Liu B, Ye R, Wang H, Guo YL, Tan Q, Xu B. From Isocyanides to Iminonitriles via Silver-mediated Sequential Insertion of C(sp 3)-H Bond. iScience 2019; 21:650-663. [PMID: 31731202 PMCID: PMC6859232 DOI: 10.1016/j.isci.2019.10.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/25/2019] [Accepted: 10/27/2019] [Indexed: 11/08/2022] Open
Abstract
Heterocycles are prevalent constituents of many marketing drugs and biologically active molecules to meet modern medical challenges. Isocyanide insertion into C(sp3)–H bonds is challenging especially for the construction of quaternary carbon centers. Herein, we describe an efficient strategy for the synthesis of α-iminonitrile substituted isochromans and tetrahydroisoquinolines (THIQs) with quaternary carbon centers through silver-triflate-mediated sequential isocyanide insertion of C(sp3)–H bonds, where isocyanide acts as the crucial “CN” and “imine” sources. The produced α-iminonitriles have extensive applications as valuable synthetic building blocks for pharmacologically interesting heterocycles. This protocol could be further applied for the synthesis of iminonitrile-decorated phenanthridines and azapyrene. Interestingly, a remarkable aggregation-induced emission (AIE) effect was first observed for an iminonitrile-decorated pyrene derivative, which may open a particular area for iminonitrile applications in materials science. Iminonitrile formation via sequential C(sp3)-H bond isocyanide insertion Construction of quaternary center Isocyanide as both "imine" and "CN" sources Valuable synthetic building blocks and novel AIEgen
Collapse
Affiliation(s)
- Huiwen Chi
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Hao Li
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Bingxin Liu
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Rongxuan Ye
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China; Qianweichang College, Shanghai University, Shanghai 200444, China
| | - Haoyang Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yin-Long Guo
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Qitao Tan
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China.
| | - Bin Xu
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China; State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
| |
Collapse
|
30
|
Li YK, Cui MX, Sha F, Li Q, Wu XY. Construction of indazolo[3,2-a]isoquinolines via [3 + 2] cycloaddition of benzynes. Org Biomol Chem 2019; 17:8963-8968. [PMID: 31576394 DOI: 10.1039/c9ob01878f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A [3 + 2] annulation protocol for the construction of N-substituted indazolo[3,2-a]isoquinolines starting from benzynes and C,N-cyclic azomethine imines was developed. A diverse range of highly functionalized products indazolo[3,2-a]isoquinolines featuring an indazole scaffold can be easily accessed via a one-step reaction under mild conditions, and they show good anti-proliferative activity on cancer cells.
Collapse
Affiliation(s)
- Yue-Kun Li
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Ming-Xin Cui
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Feng Sha
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Qiong Li
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Xin-Yan Wu
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| |
Collapse
|
31
|
Maiti D, Halder A, De Sarkar S. Base‐Promoted Aerobic Oxidation/Homolytic Aromatic Substitution Cascade toward the Synthesis of Phenanthridines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900995] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Debabrata Maiti
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur – 741246, West Bengal India
| | - Atreyee Halder
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur – 741246, West Bengal India
| | - Suman De Sarkar
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur – 741246, West Bengal India
| |
Collapse
|
32
|
Vargas DF, Larghi EL, Kaufman TS. The 6π-azaelectrocyclization of azatrienes. Synthetic applications in natural products, bioactive heterocycles, and related fields. Nat Prod Rep 2019; 36:354-401. [PMID: 30090891 DOI: 10.1039/c8np00014j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Covering: 2006 to 2018 The application of the 6π-azaelectrocyclization of azatrienes as a key strategy for the synthesis of natural products, their analogs and related bioactive or biomedically-relevant compounds (from 2006 to date) is comprehensively reviewed. Details about reaction optimization studies, relevant reaction mechanisms and conditions are also discussed.
Collapse
Affiliation(s)
- Didier F Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas - Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina.
| | | | | |
Collapse
|
33
|
Xiao P, Ni C, Miao W, Zhou M, Hu J, Chen D, Hu J. Fluoroalkylation of Various Nucleophiles with Fluoroalkyl Sulfones through a Single Electron Transfer Process. J Org Chem 2019; 84:8345-8359. [PMID: 31083947 DOI: 10.1021/acs.joc.9b00419] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The fluoroalkylation of various nucleophilic reagents with (phenylsulfonyl)difluoromethyl (PhSO2CF2)-substituted phenanthridines was achieved to give fluorinated phenanthridine derivatives, which enables the construction of both carbon-heteroatom and carbon-carbon bonds via the substitution of the phenylsulfonyl group. Mechanistic studies indicated that these reactions proceed through a unimolecular radical nucleophilic substitution (SRN1) mechanism. It is worthwhile noting that in the cases of O-nucleophiles ( t-BuO- and PhO-), the addition of t-BuOK/PhCHO could significantly promote the reactions, due to the in situ formation of a highly reactive electron donor species through the interaction of t-BuOK, PhCHO, and the solvent DMF, which can effectively initiate the single electron transfer process.
Collapse
Affiliation(s)
- Pan Xiao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Ling-Ling Road , Shanghai 200032 , China.,School of Physical Science and Technology , ShanghaiTech University , 100 Haike Road , Shanghai 201210 , China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Ling-Ling Road , Shanghai 200032 , China
| | - Wenjun Miao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Ling-Ling Road , Shanghai 200032 , China
| | - Min Zhou
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Ling-Ling Road , Shanghai 200032 , China
| | - Jingyu Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Ling-Ling Road , Shanghai 200032 , China
| | - Dingben Chen
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Ling-Ling Road , Shanghai 200032 , China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Ling-Ling Road , Shanghai 200032 , China.,School of Physical Science and Technology , ShanghaiTech University , 100 Haike Road , Shanghai 201210 , China
| |
Collapse
|
34
|
Yang J, Ren Y, Wang J, Li T, Xiao T, Jiang Y. Phenanthroline‐
t
BuONa Promoted Intramolecular C−H Arylation of 1,5‐Diaryl‐1,2,3‐Triazoles for Efficient Synthesis of Triazolophenanthridines. ChemistrySelect 2019. [DOI: 10.1002/slct.201901710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jianhua Yang
- Faculty of ScienceKunming University of Science and Technology Jingming South Road 727 Kunming 650500 P. R. of China
| | - Yongsheng Ren
- Faculty of ScienceKunming University of Science and Technology Jingming South Road 727 Kunming 650500 P. R. of China
| | - Jiazhuang Wang
- Faculty of ScienceKunming University of Science and Technology Jingming South Road 727 Kunming 650500 P. R. of China
| | - Tao Li
- Faculty of ScienceKunming University of Science and Technology Jingming South Road 727 Kunming 650500 P. R. of China
| | - Tiebo Xiao
- Faculty of ScienceKunming University of Science and Technology Jingming South Road 727 Kunming 650500 P. R. of China
| | - Yubo Jiang
- Faculty of ScienceKunming University of Science and Technology Jingming South Road 727 Kunming 650500 P. R. of China
| |
Collapse
|
35
|
A Garratt-Braverman cyclization route towards the synthesis of phenanthridine derivatives and their DNA-binding studies. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.02.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
36
|
Gupta GR, Shah J, Vadagaonkar KS, Lavekar AG, Kapdi AR. Hetero-bimetallic cooperative catalysis for the synthesis of heteroarenes. Org Biomol Chem 2019; 17:7596-7631. [DOI: 10.1039/c9ob01152h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Review covering the synthesis of 5- and 6-membered as well as condensed heteroarenes, focussing on the combinations in cooperative catalytic systems in strategies used to achieve selectivity and also highlights the mode of action for the cooperative catalysis leading to the synthesis of commercially and biologically relevant heteroarenes.
Collapse
Affiliation(s)
- Gaurav R. Gupta
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400019
- India
| | - Jagrut Shah
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400019
- India
| | | | - Aditya G. Lavekar
- Former Research Fellow
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow-226031
- India
| | - Anant R. Kapdi
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400019
- India
| |
Collapse
|
37
|
Chowdhury D, Dana S, Mandal A, Baidya M. A ruthenium-catalyzed free amine directed (5+1) annulation of anilines with olefins: diverse synthesis of phenanthridine derivatives. Chem Commun (Camb) 2019; 55:11908-11911. [PMID: 31528937 DOI: 10.1039/c9cc05717j] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A ruthenium(ii)-catalyzed cross-ring (5+1) annulation between 2-aminobiphenyls and activated olefins is disclosed for succinct synthesis of valuable phenanthridine scaffolds.
Collapse
Affiliation(s)
- Deepan Chowdhury
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Suman Dana
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Anup Mandal
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| | - Mahiuddin Baidya
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036
- India
| |
Collapse
|
38
|
Manikandan TS, Ramesh R, Semeril D. The Tandem C–H/N–H Activation of N-Methyl Arylamide Catalyzed by Dinuclear Pd(II) Benzhydrazone Complex: A Concise Access to Phenanthridinone. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00714] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli − 620 024, India
| | - David Semeril
- Universite de Strasbourg, Laboratoire de Chimie Inorganique Moleculaire et Catalyse, UMR 7177
CNRS, 4 rue Blaise Pascal, 67008 Strasbourg, France
| |
Collapse
|
39
|
Synthesis, Bacteriostatic and Anticancer Activity of Novel Phenanthridines Structurally Similar to Benzo[c]phenanthridine Alkaloids. Molecules 2018; 23:molecules23092155. [PMID: 30150591 PMCID: PMC6225299 DOI: 10.3390/molecules23092155] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/23/2018] [Accepted: 08/24/2018] [Indexed: 01/12/2023] Open
Abstract
In this study, we report the synthesis, antibacterial and anticancer evaluation of 38 novel phenanthridines that were designed as analogs of the benzo[c]phenanthridine alkaloids. The prepared phenanthridines differ from the benzo[c]phenanthridines in the absence of a benzene A-ring. All novel compounds were prepared from 6-bromo-2-hydroxy-3-methoxybenzaldehyde in several synthetic steps through reduction of Schiff bases and accomplished by radical cyclization. Twelve derivatives showed high antibacterial activity against Bacillussubtilis, Micrococcusluteus and/or Mycobacteriumvaccae at single digit micromolar concentrations. Some compounds also displayed cytotoxicity against the K-562 and MCF-7 cancer cell lines at as low as single digit micromolar concentrations and were more potent than chelerythrine and sanguinarine. The active compounds caused cell-cycle arrest in cancer cells, increased levels of p53 protein and caused apoptosis-specific fragmentation of PARP-1. Biological activity was connected especially with the presence of the N-methyl quaternary nitrogen and 7-benzyloxy substitution (compounds 7i, 7j, 7k, and 7l) of phenanthridine.
Collapse
|
40
|
Direct synthesis of 6-sulfonylated phenanthridines via silver-catalyzed radical sulfonylation-cyclization of 2-isocyanobiphenyls. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
41
|
Singh A, Mir NA, Choudhary S, Singh D, Sharma P, Kant R, Kumar I. One-pot sequential multicomponent reaction between in situ generated aldimines and succinaldehyde: facile synthesis of substituted pyrrole-3-carbaldehydes and applications towards medicinally important fused heterocycles. RSC Adv 2018; 8:15448-15458. [PMID: 35539447 PMCID: PMC9080005 DOI: 10.1039/c8ra01637b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 04/18/2018] [Indexed: 11/21/2022] Open
Abstract
An efficient sequential multi-component method for the synthesis of N-arylpyrrole-3-carbaldehydes has been developed. This reaction involved a proline-catalyzed direct Mannich reaction-cyclization sequence between succinaldehyde and in situ generated Ar/HetAr/indolyl-imines, followed by IBX-mediated oxidative aromatization in one-pot operation. The practical utility of this procedure is shown at gram-scale and the synthesis of diverse bioactive fused heterocyclic scaffolds such as pyrroloquinoline, pyrrolo-oxadiazole, dihydro pyrroloquinoline, and pyrrolo-phenanthridine.
Collapse
Affiliation(s)
- Anoop Singh
- Department of Chemistry, Birla Institute of Technology and Science Pilani 333 031 Rajasthan India
| | - Nisar A Mir
- Department of Chemistry, Birla Institute of Technology and Science Pilani 333 031 Rajasthan India
- Department of Chemistry Govt. Degree College for Pulwama-192301 J&K India
| | - Sachin Choudhary
- Department of Chemistry, Birla Institute of Technology and Science Pilani 333 031 Rajasthan India
| | - Deepika Singh
- Instrumentation Division, IIIM-CSIR Lab Jammu 180 001 India
| | - Preetika Sharma
- X-ray Crystallography Laboratory, Post-Graduate Department of Physics & Electronics, University of Jammu Jammu 180 006 India
| | - Rajni Kant
- X-ray Crystallography Laboratory, Post-Graduate Department of Physics & Electronics, University of Jammu Jammu 180 006 India
| | - Indresh Kumar
- Department of Chemistry, Birla Institute of Technology and Science Pilani 333 031 Rajasthan India
| |
Collapse
|
42
|
Yao Q, Zhou X, Zhang X, Wang C, Wang P, Li M. Convenient synthesis of 6-alkyl phenanthridines and 1-alkyl isoquinolines via silver-catalyzed oxidative radical decarboxylation. Org Biomol Chem 2018; 15:957-971. [PMID: 28059413 DOI: 10.1039/c6ob02331b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A convenient and efficient protocol for the synthesis of 6-alkyl phenanthridines and 1-alkyl isoquinolines has been developed. The reaction relies on the coupling of 2-isocyanobiphenyls and vinyl isonitriles with alkyl radicals formed by the silver-catalyzed decarboxylation of stoichiometric aliphatic carboxylic acids, and affords diverse phenanthridine and isoquinoline derivatives under mild reaction conditions. The experiment of β-scission of cyclobutylcarbinyl radicals is used to shed light on the reaction mechanism.
Collapse
Affiliation(s)
- Qian Yao
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P.R. China.
| | - Xin Zhou
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P.R. China.
| | - Xiuli Zhang
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P.R. China.
| | - Cong Wang
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P.R. China.
| | - Peng Wang
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P.R. China.
| | - Ming Li
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P.R. China. and Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, P. R. China
| |
Collapse
|
43
|
Li J, Caiuby CAD, Paixão MW, Li CJ. Synthesis of 6-Trifluoromethylphenanthridines through Radical Trifluoromethylation of Isocyanides with Sodium Triflinate under Visible Light. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701487] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jianbin Li
- Department of Chemistry; McGill University; 801 Sherbrooke Street West QC H3A 0B8 Montreal Canada
| | - Clarice A. D. Caiuby
- Department of Chemistry; McGill University; 801 Sherbrooke Street West QC H3A 0B8 Montreal Canada
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem); Department of Chemistry; Federal University of São Carlos UFSCar; Rodovia Washington Luís, km 235, SP-310 13565-905 São Carlos São Paulo Brazil
| | - Márcio W. Paixão
- Center of Excellence for Research in Sustainable Chemistry (CERSusChem); Department of Chemistry; Federal University of São Carlos UFSCar; Rodovia Washington Luís, km 235, SP-310 13565-905 São Carlos São Paulo Brazil
| | - Chao-Jun Li
- Department of Chemistry; McGill University; 801 Sherbrooke Street West QC H3A 0B8 Montreal Canada
| |
Collapse
|
44
|
Kong L, Yao Q, Wang M, Sun R, Li Y. Pd-Catalyzed C-H/N-H Arylation: One-Pot Synthesis of Indolo[1, 2-f
]phenanthridines. ChemistrySelect 2018. [DOI: 10.1002/slct.201701939] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and ChemicalProcesses, School of Chemistry and Molecular Engineering; East China Normal University; 500 Dong chuan Road Shanghai 200241 China
| | - Qiyi Yao
- Shanghai Key Laboratory of Green Chemistry and ChemicalProcesses, School of Chemistry and Molecular Engineering; East China Normal University; 500 Dong chuan Road Shanghai 200241 China
| | - Mengdan Wang
- Shanghai Key Laboratory of Green Chemistry and ChemicalProcesses, School of Chemistry and Molecular Engineering; East China Normal University; 500 Dong chuan Road Shanghai 200241 China
| | - Ruizhuo Sun
- Shanghai Key Laboratory of Green Chemistry and ChemicalProcesses, School of Chemistry and Molecular Engineering; East China Normal University; 500 Dong chuan Road Shanghai 200241 China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and ChemicalProcesses, School of Chemistry and Molecular Engineering; East China Normal University; 500 Dong chuan Road Shanghai 200241 China
| |
Collapse
|
45
|
Zhou X, Wang P, Zhang L, Chen P, Ma M, Song N, Ren S, Li M. Transition-Metal-Free Synthesis of C-Glycosylated Phenanthridines via K 2S 2O 8-Mediated Oxidative Radical Decarboxylation of Uronic Acids. J Org Chem 2018; 83:588-603. [PMID: 29261315 DOI: 10.1021/acs.joc.7b02346] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We have developed an efficient protocol for the synthesis of C-glycosylated phenanthridines. Tetrafuranos-4-yl and pentapyranos-5-yl radicals, generated from K2S2O8-mediated oxidative decarboxylation of furan- and pyranuronic acids, undergo attack to 2-isocyanodiphenyls and ensuing homolytic aromatic substitution to provide diverse C-glycosylated phenanthridines in satisfactory yields without resort to transition metals. This reaction tolerates various functional groups, and enables ready synthesis of complex oligosaccharide-based phenanthridines. The C-glycosylated phenanthridine derived from β-cyclodextrin has been prepared, which might be potential in medicinal and biological chemistry due to its flexible conformation.
Collapse
Affiliation(s)
- Xin Zhou
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Peng Wang
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Li Zhang
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Pengwei Chen
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Mingxu Ma
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Ni Song
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Sumei Ren
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China
| | - Ming Li
- Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , 5 Yushan Road, Qingdao 266003, People's Republic of China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237, People's Republic of China
| |
Collapse
|
46
|
Wei J, Gu D, Wang S, Hu J, Dong X, Sheng R. Visible-light-mediated radical arylthiodifluoromethylation of isocyanides with fluorinated 2-pyridyl sulfones. Org Chem Front 2018. [DOI: 10.1039/c8qo00644j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
2-PySO2CF2SAr were developed as powerful arylthiodifluoromethylation reagents, and the Stern–Volmer luminescence studies demonstrated that the mechanism might operate via a photoredox cycle consisting of a reductive quenching with Na2CO3.
Collapse
Affiliation(s)
- Jun Wei
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- People's Republic of China
| | - Dongyan Gu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- People's Republic of China
| | - Shengdan Wang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- People's Republic of China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai
- People's Republic of China
| | - Xiaowu Dong
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- People's Republic of China
| | - Rong Sheng
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou
- People's Republic of China
| |
Collapse
|
47
|
Lübbesmeyer M, Leifert D, Schäfer H, Studer A. Electrochemical initiation of electron-catalyzed phenanthridine synthesis by trifluoromethylation of isonitriles. Chem Commun (Camb) 2018; 54:2240-2243. [DOI: 10.1039/c7cc09302k] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Electrochemical initiation of the trifluoromethylation of biaryl isonitriles verifies the electron's catalytic character in the examined cascade reaction.
Collapse
Affiliation(s)
- M. Lübbesmeyer
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - D. Leifert
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - H. Schäfer
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - A. Studer
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| |
Collapse
|
48
|
Jaiswal Y, Kumar Y, Pal J, Subramanian R, Kumar A. Rapid synthesis of polysubstituted phenanthridines from simple aliphatic/aromatic nitriles and iodo arenes via Pd(ii) catalyzed domino C–C/C–C/C–N bond formation. Chem Commun (Camb) 2018; 54:7207-7210. [DOI: 10.1039/c8cc03556c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An efficient method has been developed for the synthesis of polysubstituted phenanthridiene via palladium catalyzed nucleophilic addition of aryl iodides to nitriles followed by dual C–H activation.
Collapse
Affiliation(s)
- Yogesh Jaiswal
- Department of Chemistry
- Indian Institute of Technology Patna
- Bihta 801106
- India
| | - Yogesh Kumar
- Department of Chemistry
- Indian Institute of Technology Patna
- Bihta 801106
- India
| | - Jagannath Pal
- Department of Chemistry
- Indian Institute of Technology Patna
- Bihta 801106
- India
| | - Ranga Subramanian
- Department of Chemistry
- Indian Institute of Technology Patna
- Bihta 801106
- India
| | - Amit Kumar
- Department of Chemistry
- Indian Institute of Technology Patna
- Bihta 801106
- India
| |
Collapse
|
49
|
Liu X, Mao R, Ma C. Crossover-Annulation/Oxygenation Approach to Functionalized Phenanthridines by Palladium–Copper Relay Catalysis. Org Lett 2017; 19:6704-6707. [DOI: 10.1021/acs.orglett.7b03427] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xiang Liu
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Renjie Mao
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| |
Collapse
|
50
|
Wang Q, Shi X, Zhang X, Fan X. A convenient synthesis of 1-aryl-1H-1,2,3-triazoles from aliphatic substrates. Org Biomol Chem 2017; 15:8529-8534. [PMID: 28956584 DOI: 10.1039/c7ob02035j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A convenient synthesis of 1-aryl-1H-1,2,3-triazoles through the one pot cascade reactions of alkynes with aliphatic azides and allenic ketones is presented. Mechanically, the formation of the title compounds involves a copper-catalyzed cycloaddition of alkyne with 4-azido-3-oxobutanoate to give 3-oxo-4-(1H-1,2,3-triazol-1-yl)butanoate as a key intermediate followed by its [3 + 3] annulation with allenic ketone through Michael addition and intramolecular condensation. A comparison study showed that using aliphatic azide as the substrate is superior to aromatic azide in terms of efficiency and selectivity. Furthermore, the 1-aryl-1H-1,2,3-triazoles bearing a 2'-bromophenyl unit attached on the 2-position of the in situ formed aryl ring obtained herein could be readily transformed into the biologically and pharmaceutically valuable tretracyclic triazolophenanthridines with good yields via a Pd-catalyzed C-H arylation.
Collapse
Affiliation(s)
- Qiang Wang
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, P. R. China.
| | | | | | | |
Collapse
|