1
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Sun Y, Li X, Yuan J, Yu J, Liu S. CuI-Catalyzed Regioselective Synthesis of 3-Arylcoumarins with Arylamines under Mild Conditions. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202108050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Matos MJ, Uriarte E, Santana L. 3-Phenylcoumarins as a Privileged Scaffold in Medicinal Chemistry: The Landmarks of the Past Decade. Molecules 2021; 26:6755. [PMID: 34771164 PMCID: PMC8587835 DOI: 10.3390/molecules26216755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 12/27/2022] Open
Abstract
3-Phenylcoumarins are a family of heterocyclic molecules that are widely used in both organic and medicinal chemistry. In this overview, research on this scaffold, since 2010, is included and discussed, focusing on aspects related to its natural origin, synthetic procedures and pharmacological applications. This review paper is based on the most relevant literature related to the role of 3-phenylcoumarins in the design of new drug candidates. The references presented in this review have been collected from multiple electronic databases, including SciFinder, Pubmed and Mendeley.
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Affiliation(s)
- Maria J Matos
- Centro de Investigação em Química da Universidade do Porto (CIQUP), Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Eugenio Uriarte
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Instituto de Ciencias Químicas Aplicadas, Universidad Autónoma de Chile, Santiago 7500912, Chile
| | - Lourdes Santana
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade Santiago de Compostela, 15782 Santiago de Compostela, Spain
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3
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Carneiro LSA, Almeida-Souza F, Lopes YSC, Novas RCV, Santos KBA, Ligiero CBP, Calabrese KDS, Buarque CD. Synthesis of 3-aryl-4-(N-aryl)aminocoumarins via photoredox arylation and the evaluation of their biological activity. Bioorg Chem 2021; 114:105141. [PMID: 34328862 DOI: 10.1016/j.bioorg.2021.105141] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/22/2021] [Accepted: 06/29/2021] [Indexed: 01/02/2023]
Abstract
A new series of 3-aryl-4-(N-aryl)aminocoumarins was synthesized in two steps starting from the natural product 4-hydroxycoumarin using the photoredox catalysis for the key step. These conditions reactions allowed to make CC bonds is up to 95% yields in mild conditions, easy operation, in an environmentally benign way, and are compatible with several patterns of substitution. The biological activity of the new compounds was tested in vitro against MCF-7, MDA-MB-231, and CCD-1072Sk cancer cell lines, as soon as to promastigotes and intracellular amastigotes of Leishmania amazonensis. Compounds 17d, 17s and 17x showed activity against promastigote forms (IC50 = 5.96 ± 3.210, 9.05 ± 2.855 and 5.65 ± 2.078 μM respectively), and compound 17x presented the best activity against L. amazonensis amastigote intracellular form (IC50 = 9.6 ± 1.148 μM), no BALB/c peritoneal macrophage cytotoxicity at assayed concentrations (CC50 > 600 μM), and high selectivity to parasites over the mammalian cells (Selectivity Index > 62.2). There was no expressive activity for the cancer cell lines. Single crystal X-ray diffraction analysis was employed for structural elucidation of compounds 17a and 17s. In silico analyses of physicochemical, pharmacokinetic, and toxicological properties suggest that compound 17x is a potential candidate for anti-leishmaniasis drugs.
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Affiliation(s)
- Leonardo S A Carneiro
- Departmento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente 225, sala 576L, Gávea, Rio de Janeiro, RJ 20551-031, Brazil
| | - Fernando Almeida-Souza
- Pós-graduação em Ciência Animal, Universidade Estadual do Maranhão (UEMA), Cidade Universitária Paulo VI, São Luís, MA 65055-310, Brazil; Laboratório de Imunomodulação e Protozoologia, Instituto Oswaldo Cruz (Fiocruz), Av. Brasil 4365, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil
| | - Yanne S C Lopes
- Departmento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente 225, sala 576L, Gávea, Rio de Janeiro, RJ 20551-031, Brazil
| | - Rachel C V Novas
- Departmento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente 225, sala 576L, Gávea, Rio de Janeiro, RJ 20551-031, Brazil
| | - Kaique B A Santos
- Laboratório de Imunomodulação e Protozoologia, Instituto Oswaldo Cruz (Fiocruz), Av. Brasil 4365, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil
| | - Carolina B P Ligiero
- Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos, 149, CT, Bl. A-622, Cid. Universitária, Ilha do Fundão, Rio de Janeiro, RJ 21941-909, Brazil
| | - Kátia da S Calabrese
- Laboratório de Imunomodulação e Protozoologia, Instituto Oswaldo Cruz (Fiocruz), Av. Brasil 4365, Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil
| | - Camilla D Buarque
- Departmento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente 225, sala 576L, Gávea, Rio de Janeiro, RJ 20551-031, Brazil.
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4
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Mo F, Qiu D, Zhang L, Wang J. Recent Development of Aryl Diazonium Chemistry for the Derivatization of Aromatic Compounds. Chem Rev 2021; 121:5741-5829. [DOI: 10.1021/acs.chemrev.0c01030] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Fanyang Mo
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Di Qiu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Lei Zhang
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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5
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Xiao Y, Yang Y, Zhang F, Feng Y, Cui X. UV-Light-Initiated Construction of Indenones through Cyclization of Aryl Aldehydes or Aryl Ketones with Alkynes Avoiding Photocatalyst. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202107021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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6
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Affiliation(s)
- Carlotta Raviola
- PhotoGreen Lab University of Pavia Viale Taramelli 10 27100 Pavia Italy
| | - Stefano Protti
- PhotoGreen Lab University of Pavia Viale Taramelli 10 27100 Pavia Italy
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7
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Moazzam A, Jafarpour F. Chlorophyll-catalyzed photochemical regioselective coumarin C–H arylation with diazonium salts. NEW J CHEM 2020. [DOI: 10.1039/d0nj02012e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A metal-free, direct C–H arylation of coumarins with aryl diazonium salts at room temperature using chlorophyll as a green photosensitizer is devised.
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Affiliation(s)
- Ali Moazzam
- School of Chemistry
- College of Science
- University of Tehran
- 14155-6455 Tehran
- Iran
| | - Farnaz Jafarpour
- School of Chemistry
- College of Science
- University of Tehran
- 14155-6455 Tehran
- Iran
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8
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Bhansali K, Raut S, Barange S, Bhagat P. Sulphonic acid functionalized porphyrin anchored with a meso-substituted triazolium ionic liquid moiety: a heterogeneous photo-catalyst for metal/base free C–C cross-coupling and C–N/C–H activation using aryl chloride under visible light irradiation. NEW J CHEM 2020. [DOI: 10.1039/d0nj03637d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report an easy process to synthesize sulphonic acid functionalized porphyrin with meso-substituted triazolium ionic liquid moiety for metal/base free C–C cross-coupling and C–N/C–H activation using aryl chloride under visible light irradiation.
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Affiliation(s)
- Karan Bhansali
- Department of Chemisty
- School of Advanced Science
- Vellore Institute of Technology
- Vellore-632014
- India
| | - Subodh Raut
- Department of Chemisty
- School of Advanced Science
- Vellore Institute of Technology
- Vellore-632014
- India
| | - Shital Barange
- Department of Chemisty
- School of Advanced Science
- Vellore Institute of Technology
- Vellore-632014
- India
| | - Pundlik Bhagat
- Department of Chemisty
- School of Advanced Science
- Vellore Institute of Technology
- Vellore-632014
- India
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9
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de Souza AAN, Silva NS, Müller AV, Polo AS, Brocksom TJ, de Oliveira KT. Porphyrins as Photoredox Catalysts in Csp 2-H Arylations: Batch and Continuous Flow Approaches. J Org Chem 2018; 83:15077-15086. [PMID: 30456953 DOI: 10.1021/acs.joc.8b02355] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We have investigated both batch and continuous flow photoarylations of enol-acetates to yield different α-arylated aldehyde and ketone building blocks by using diazonium salts as the aryl-radical source. Different porphyrins were used as SET photocatalysts, and photophysical as well as electrochemical studies were performed to rationalize the photoredox properties and suggest mechanistic insights. Notably, the most electron-deficient porphyrin ( meso-tetra(pentafluorophenyl)porphyrin) shows the best photoactivity as an electron donor in the triplet excited state, which was rationalized by the redox potentials of excited states and the turnover of the porphyrins in the photocatalytic cycle. A two-step continuous protocol and multigram-scale reactions are also presented revealing a robust, cost-competitive, and easy methodology, highlighting the significant potential of porphyrins as SET photocatalysts.
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Affiliation(s)
- Aline A N de Souza
- Departamento de Química , Universidade Federal de São Carlos , São Carlos , São Paulo 13565-905 , Brazil
| | - Nathalia S Silva
- Departamento de Química , Universidade Federal de São Carlos , São Carlos , São Paulo 13565-905 , Brazil
| | - Andressa V Müller
- Centro de Ciências Naturais e Humanas , Universidade Federal do ABC , Santo André , São Paulo 09210-580 , Brazil
| | - André S Polo
- Centro de Ciências Naturais e Humanas , Universidade Federal do ABC , Santo André , São Paulo 09210-580 , Brazil
| | - Timothy J Brocksom
- Departamento de Química , Universidade Federal de São Carlos , São Carlos , São Paulo 13565-905 , Brazil.,Centro de Ciências Naturais e Humanas , Universidade Federal do ABC , Santo André , São Paulo 09210-580 , Brazil
| | - Kleber T de Oliveira
- Departamento de Química , Universidade Federal de São Carlos , São Carlos , São Paulo 13565-905 , Brazil
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10
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Wang CS, Dixneuf PH, Soulé JF. Photoredox Catalysis for Building C-C Bonds from C(sp 2)-H Bonds. Chem Rev 2018; 118:7532-7585. [PMID: 30011194 DOI: 10.1021/acs.chemrev.8b00077] [Citation(s) in RCA: 492] [Impact Index Per Article: 82.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Transition metal-catalyzed C-H bond functionalizations have been the focus of intensive research over the last decades for the formation of C-C bonds from unfunctionalized arenes, heteroarenes, alkenes. These direct transformations provide new approaches in synthesis with high atom- and step-economy compared to the traditional catalytic cross-coupling reactions. However, such methods still suffer from several limitations including functional group tolerance and the lack of regioselectivity. In addition, they often require harsh reaction conditions and some of them need the use of strong oxidant, in a stoichiometric amount, avoiding these processes to be truly eco-friendly. The use of photoredox catalysis has contributed to a significant expansion of the scope of C(sp2)-H bond functionalizations which include the direct arylations, (perfluoro)alkylations, acylations, and even cyanations. Most of these transformations involve the photochemical induced generation of a radical followed by its regioselective addition to arenes, heteroarenes, or alkenes, leading to the building of a new C(sp2)-C bond. The use of photoredox catalysis plays crucial roles in these reactions promoting electron transfer, enabling the generation of radical species and single electron either oxidation or reduction. Such reactions operating at room temperature allow the building of C-C bonds with high chemo-, regio-, or stereoselectivity. This review surveys the formation of C(sp2)-C bonds initiated by photoredox catalysis which involves a C(sp2)-H bond functionalization step, describes the advantages compared to traditional C(sp2)-H bond functionalizations, and presents mechanistic insights into the role played by the photoredox catalysts.
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11
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Gupta M, Kumar P, Bahadur V, Kumar K, Parmar VS, Singh BK. Metal-Free, Regioselective, Dehydrogenative Cross-Coupling between Formamides/Aldehydes and Coumarins by C-H Functionalization. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701764] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Mohit Gupta
- Department of chemistry; University of Delhi; -110007 Delhi India
| | - Prashant Kumar
- Department of chemistry; University of Delhi; -110007 Delhi India
| | - Vijay Bahadur
- Department of chemistry; University of Delhi; -110007 Delhi India
| | - Krishan Kumar
- Department of chemistry; University of Delhi; -110007 Delhi India
| | - Virinder S. Parmar
- Department of chemistry; University of Delhi; -110007 Delhi India
- Institute of Advanced Sciences; 86-410 Faunce Corner Mall Road 02747 Dartmouth MA USA
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12
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Affiliation(s)
- Yan Qin
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lihui Zhu
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sanzhong Luo
- Key
Laboratory for Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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13
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Rybicka-Jasińska K, König B, Gryko D. Porphyrin-Catalyzed Photochemical C-H Arylation of Heteroarenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601518] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Burkhard König
- Department of Chemistry and Pharmacy; University of Regensburg; Universitätsstr. 31 93053 Regensburg Germany
| | - Dorota Gryko
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
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14
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Rybicka-Jasińska K, Shan W, Zawada K, Kadish KM, Gryko D. Porphyrins as Photoredox Catalysts: Experimental and Theoretical Studies. J Am Chem Soc 2016; 138:15451-15458. [PMID: 27933929 DOI: 10.1021/jacs.6b09036] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Metalloporphyrins not only are vital in biological systems but also are valuable catalysts in organic synthesis. On the other hand, catalytic properties of free base porphyrins have been less explored. They are mostly known as efficient photosensitizers for the generation of singlet oxygen via photoinduced energy transfer processes, but under light irradiation, they can also participate in electron transfer processes. Indeed, we have found that free base tetraphenylporphyrin (H2TPP) is an efficient photoredox catalyst for the reaction of aldehydes with diazo compounds leading to α-alkylated derivatives. The performance of a porphyrin catalyst can be optimized by tailoring various substituents at the periphery of the macrocycle at both the β and meso positions. This allows for the fine tuning of their optical and electrochemical properties and hence their catalytic activity.
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Affiliation(s)
| | - Wenqian Shan
- University of Houston , Department of Chemistry, Houston, Texas 77204-5003, United States
| | - Katarzyna Zawada
- Medical University of Warsaw , Faculty of Pharmacy with the Laboratory Medicine Division, Department of Physical Chemistry, Banacha 1, 02-097 Warsaw, Poland
| | - Karl M Kadish
- University of Houston , Department of Chemistry, Houston, Texas 77204-5003, United States
| | - Dorota Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
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15
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To CT, Yang W, Chan KS. Porphyrins and Phthalocyanines Catalyzed Direct CH Arylation. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600442] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Kindt S, Wicht K, Heinrich MR. Thermally Induced Carbohydroxylation of Styrenes with Aryldiazonium Salts. Angew Chem Int Ed Engl 2016; 55:8744-7. [PMID: 27273583 PMCID: PMC5089591 DOI: 10.1002/anie.201601656] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/21/2016] [Indexed: 01/04/2023]
Abstract
The radical carbohydroxylation of styrenes with aryldiazonium salts has been achieved under mild thermal conditions. A broad range of aryldiazonium salts was tolerated, and the reaction principle based on a radical-polar crossover mechanism could be extended to carboetherification as well as to a two-step, metal-free variant of the Meerwein arylation leading to stilbenes.
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Affiliation(s)
- Stephanie Kindt
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstrasse 19, 91052, Erlangen, Germany
| | - Karina Wicht
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstrasse 19, 91052, Erlangen, Germany
| | - Markus R Heinrich
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstrasse 19, 91052, Erlangen, Germany.
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17
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Guo S, Gong J, Zhu Z, Yu L, Wang Y, Huang L, Cai H. Copper-catalyzed Phosphorylation of Coumarins with Trialkyl Phosphites. CHEM LETT 2016. [DOI: 10.1246/cl.160305] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Kindt S, Wicht K, Heinrich MR. Thermisch induzierte Carbohydroxylierung von Styrolen mit Aryldiazoniumsalzen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601656] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Stephanie Kindt
- Department Chemie und Pharmazie, Pharmazeutische Chemie; Friedrich-Alexander-Universität Erlangen-Nürnberg; Schuhstraße 19 91052 Erlangen Deutschland
| | - Karina Wicht
- Department Chemie und Pharmazie, Pharmazeutische Chemie; Friedrich-Alexander-Universität Erlangen-Nürnberg; Schuhstraße 19 91052 Erlangen Deutschland
| | - Markus R. Heinrich
- Department Chemie und Pharmazie, Pharmazeutische Chemie; Friedrich-Alexander-Universität Erlangen-Nürnberg; Schuhstraße 19 91052 Erlangen Deutschland
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19
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Zang H, Sun JG, Dong X, Li P, Zhang B. Preparation of Benzothiophenes and Benzoselenophenes from Arylamines and Alkynes via
Radical Cascade Reactions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501102] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Yang ZH, Chen ZH, An YL, Zhao SY. Selective and tunable synthesis of 3-arylsuccinimides and 3-arylmaleimides from arenediazonium tetrafluoroborates and maleimides. RSC Adv 2016. [DOI: 10.1039/c6ra00136j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
A highly efficient and tunable synthetic strategy for 3-arylsuccinimides or 3-arylmaleimides has been developed from arenediazonium tetrafluoroborates and maleimides with satisfactory yields in the presence of TiCl3 or CuCl.
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Affiliation(s)
- Zhen-Hua Yang
- Department of Chemistry
- Donghua University
- Shanghai 201620
- P. R. of China
| | - Zhong-Hui Chen
- Department of Chemistry
- Donghua University
- Shanghai 201620
- P. R. of China
| | - Yu-Long An
- Department of Chemistry
- Donghua University
- Shanghai 201620
- P. R. of China
| | - Sheng-Yin Zhao
- Department of Chemistry
- Donghua University
- Shanghai 201620
- P. R. of China
- State Key Laboratory of Bioorganic & Natural Products Chemistry
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21
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Pramanik MMD, Rastogi N. Visible light catalyzed methylsulfoxidation of (het)aryl diazonium salts using DMSO. Chem Commun (Camb) 2016; 52:8557-60. [DOI: 10.1039/c6cc04142f] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The visible light catalyzed methylsulfoxidation of (het)aryl diazonium salts using DMSO is illustrated.
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Affiliation(s)
- Mukund M. D. Pramanik
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Sector 10
- Jankipuram Extension
- Lucknow 226031
| | - Namrata Rastogi
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Sector 10
- Jankipuram Extension
- Lucknow 226031
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22
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Takanami T, Sugita N, Tsuchiya I. Palladium-Catalyzed Cross-Coupling Reactions of Brominated Porphyrins with Functionalized Organomagnesium Reagents: Direct Preparation of Functional-Group-Bearing Free Base Porphyrins. HETEROCYCLES 2016. [DOI: 10.3987/com-15-s(t)20] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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23
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Chauhan P, Ravi M, Singh S, Prajapati P, Yadav PP. Regioselective α-arylation of coumarins and 2-pyridones with phenylhydrazines under transition-metal-free conditions. RSC Adv 2016. [DOI: 10.1039/c5ra20954d] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A transition-metal-free regioselective α-arylation of coumarins and 2-pyridones has been accomplished by the reaction of phenylhydrazines with coumarins or 2-pyridones.
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Affiliation(s)
- Parul Chauhan
- Medicinal and Process Chemistry
- CSIR-Central Drug Research Institute
- Lucknow-226031
- India
| | - Makthala Ravi
- Medicinal and Process Chemistry
- CSIR-Central Drug Research Institute
- Lucknow-226031
- India
| | - Shikha Singh
- Medicinal and Process Chemistry
- CSIR-Central Drug Research Institute
- Lucknow-226031
- India
| | - Prashant Prajapati
- National Institute of Pharmaceutical Education and Research
- Raebareli-229010
- India
| | - Prem P. Yadav
- Medicinal and Process Chemistry
- CSIR-Central Drug Research Institute
- Lucknow-226031
- India
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24
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Huang FQ, Zhou GX, Dong X, Qi LW, Zhang B. Metal-Free C(sp3)-O Bond Formation through Radical Translocation: A Mild, Efficient, and Practical Approach to α-Alkoxybenzamides. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500495] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Feng-Qing Huang
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Guo-Xiu Zhou
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Xin Dong
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Lian-Wen Qi
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
| | - Bo Zhang
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjia Xiang Nanjing 210009 China
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Rossi R, Lessi M, Manzini C, Marianetti G, Bellina F. Transition Metal-Free Direct CH (Hetero)arylation of Heteroarenes: A Sustainable Methodology to Access (Hetero)aryl-Substituted Heteroarenes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500799] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Zhao W, Xu L, Ding Y, Niu B, Xie P, Bian Z, Zhang D, Zhou A. Regioselective Coupling Reactions of Coumarins with Aldehydes or Di-tert-butyl Peroxide (DTBP) through a C(sp2)-H Functionalization Process. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501251] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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