1
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Sarkar S, Pal S, Mukherjee A, Santra S, Zyryanov GV, Majee A. Visible-Light-Promoted Metal- and Photocatalyst-Free Reactions between Arylglyoxylic Acids and Tetraalkylthiuram Disulfides: Synthesis of α-Ketoamides. J Org Chem 2024; 89:1473-1482. [PMID: 38225732 DOI: 10.1021/acs.joc.3c02081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
A convenient and new synthetic approach has been developed for the oxidative cross-coupling of the C-N bond through the reaction between arylglyoxylic acids and tetraalkylthiuram disulfides. The reaction proceeds under ambient air at room temperature in the presence of visible light. This reaction offers a metal-, base-, photocatalyst-, and solvent-free synthesis of various α-ketoamides with moderate to excellent yields via the radical pathway. In addition, this protocol demonstrates the potential application of a gram-scale synthesis.
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Affiliation(s)
- Subhankar Sarkar
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Satyajit Pal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Anindita Mukherjee
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
| | - Sougata Santra
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
| | - Grigory V Zyryanov
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy Street, 620219 Yekaterinburg, Russian Federation
| | - Adinath Majee
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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2
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Das S, Mondal S, Midya SP, Mondal S, Ghosh E, Ghosh P. Base-Promoted Tandem Pathway for Keto-Amides: Visible Light-Mediated Room-Temperature Amidation Using Molecular Oxygen as an Oxidant. J Org Chem 2023; 88:14847-14859. [PMID: 37867455 DOI: 10.1021/acs.joc.3c00686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Herein, we report metal- and photocatalyst-free room-temperature amidation for α-ketoamide synthesis from feedstock phenacyl bromides and amines using molecular oxygen as an oxidant as well as a source of oxygen in the amide segment. Visible light-mediated base-promoted one-pot sequential C-N/C═N/C═O bond formation takes place in a tandem manner to afford the desired product. Functional group tolerance (benzylic alcohol, keto, cyano, nitro, halo, etc.), a broad substrate scope, and gram-scale synthesis make this synthetic methodology more attractive. We have observed that electron-rich aromatic amines, aliphatic amines, and phenacyl bromide derivatives proceeded the present transformation with marginally superior reactivity in comparison to electron-deficient aromatic amines and phenacyl bromide derivatives. Moreover, several control experiments, in situ isolation of secondary amine and imine as key intermediates, and 18O-labeling experiments provide complete insight into the mechanism of the tandem pathway.
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Affiliation(s)
- Suman Das
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Soumya Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Siba P Midya
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Subal Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Eliza Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Pradyut Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata, West Bengal 700032, India
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3
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Kishor K, Prabhakar NS, Singh KN. Visible-Light-Mediated Synthesis of α-Ketoamides via Oxidative Amination of 2-Bromoacetophenones Using Eosin Y as a Photoredox Catalyst. Chem Asian J 2023; 18:e202300669. [PMID: 37642246 DOI: 10.1002/asia.202300669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 08/31/2023]
Abstract
An oxidative amination of 2-bromoacetophenones has been accomplished to provide α-ketoamides by using photoredox catalysis with air as oxidant. The reactants are readily accessible, and the method is endowed with broad substrate scope and good functional group tolerance. The practicality of the approach is also shown by a gram-scale reaction.
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Affiliation(s)
- Kaushal Kishor
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Neha Sharma Prabhakar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Krishna Nand Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
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4
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Pang Q, Zuo WF, Zhang Y, Li X, Han B. Recent Advances on Direct Functionalization of Indoles in Aqueous Media. CHEM REC 2023; 23:e202200289. [PMID: 36722727 DOI: 10.1002/tcr.202200289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/15/2023] [Indexed: 02/02/2023]
Abstract
Indoles and their derivatives have dominated a significant proportion of nitrogen-containing heterocyclic compounds and play an essential role in synthetic and medicinal chemistry, pesticides, and advanced materials. Compared with conventional synthetic strategies, direct functionalization of indoles provides straightforward access to construct diverse indole scaffolds. As we enter an era emphasizing green and sustainable chemistry, utilizing environment-friendly solvents represented by water demonstrates great potential in synthesizing valuable indole derivatives. This review aims to depict the critical aspects of aqueous-mediated indoles functionalization over the past decade and discusses the future challenges and prospects in this fast-growing field. For the convenience of readers, this review is classified into three parts according to the bonding modes (C-C, C-N, and C-S bonds), which focus on the diversity of indole derivatives, the prominent role of water in the chemical process, and the types of catalyst systems and mechanisms. We hope this review can promote the sustainable development of the direct functionalization of indoles and their derivatives and the discovery of novel and practical organic methods in aqueous phase.
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Affiliation(s)
- Qiwen Pang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wei-Fang Zuo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yang Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
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5
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Arginine‐Catalyzed Henry Reaction of α‐Keto Amides with Nitromethane on Water. ChemistrySelect 2022. [DOI: 10.1002/slct.202104433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Ma J, Cui X, Xu J, Tan Y, Wang Y, Wang X, Li Y. One-Pot Synthesis of α-Ketoamides from α-Keto Acids and Amines Using Ynamides as Coupling Reagents. J Org Chem 2022; 87:3661-3667. [PMID: 35029390 DOI: 10.1021/acs.joc.1c02453] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A one-pot strategy for α-keto amide bond formation have been developed by using ynamides as coupling reagents under extremely mild reaction conditions. Diversely structural α-ketoamides were afforded in up to 98% yield for 36 examples. This reaction features advantages such as practical coupling procedure, wide functional group tolerance, and extremely mild conditions and has potential applications in synthetic and medicinal chemistry.
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Affiliation(s)
- Jianting Ma
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Xue Cui
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Junyu Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Yinfeng Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Yan Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Xuesong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
| | - Youbin Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou571199, P.R. China
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7
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Zhuang SY, Tang YX, Chen XL, Wu YD, Wu AX. I 2-DMSO mediated oxidative amidation of methyl ketones with anthranils for the synthesis of α-ketoamides. Org Biomol Chem 2021; 19:4258-4262. [PMID: 33890609 DOI: 10.1039/d1ob00468a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An I2-DMSO mediated oxidative amidation of methyl ketones using anthranils as masked N-nucleophiles has been developed for the direct synthesis of α-ketoamides with high atom-economy. This metal-free process involves reductive N-O bond cleavage of anthranils and oxidative C-N bond formation of methyl ketones under mild conditions. The iodo group and electrophilic formyl group provide multiple possibilities for further functionalization of α-ketoamides.
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Affiliation(s)
- Shi-Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
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8
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Wu H, Yu X, Cao Z. Electrochemical Multicomponent Synthesis of α-Ketoamides from α-Oxocarboxylic Acids, Isocyanides and Water. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202111010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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Huang J, Liang B, Chen X, Liu Y, Li Y, Liang J, Zhu W, Tang X, Li Y, Zhu Z. Rapid assembly of α-ketoamides through a decarboxylative strategy of isocyanates with α-oxocarboxylic acids under mild conditions. Org Biomol Chem 2021; 19:4783-4787. [PMID: 33982036 DOI: 10.1039/d1ob00562f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and practical method for α-ketoamide synthesis via a decarboxylative strategy of isocyanates with α-oxocarboxylic acids is described. The reaction proceeds at room temperature under mild conditions without an oxidant or an additive, showing good substrate scope and functional compatibility. Moreover, the applicability of this method was further demonstrated by the synthesis of various bioactive molecules and different application examples through a two-step one-pot operation.
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Affiliation(s)
- Junjie Huang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Baihui Liang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Yifu Liu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Yawen Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Jingwen Liang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Weidong Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Xiaodong Tang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Yibiao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Zhongzhi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
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10
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Pillaiyar T, Sedaghati M, Schnakenburg G. Reaction of indoles with aromatic fluoromethyl ketones: an efficient synthesis of trifluoromethyl(indolyl)phenylmethanols using K 2CO 3/ n-Bu 4PBr in water. Beilstein J Org Chem 2020; 16:778-790. [PMID: 32395181 PMCID: PMC7189012 DOI: 10.3762/bjoc.16.71] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/02/2020] [Indexed: 12/17/2022] Open
Abstract
A new, mild and efficient protocol for the synthesis of trifluoromethyl(indolyl)phenylmethanols by the reaction of indoles with a variety of aromatic fluoromethyl ketones in the presence of K2CO3 (15 mol %) and n-Bu4PBr (15 mol %) in water. The desired products were obtained in good to excellent yields without requiring a column chromatographic purification. The reusability of the catalytic system and large-scale synthesis of indolyl(phenyl)methanols, which would further transform into biological active indole-derived compounds, are further advantages of this protocol.
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Affiliation(s)
- Thanigaimalai Pillaiyar
- PharmaCenter Bonn, Pharmaceutical Institute, Department of Pharmaceutical and Medicinal Chemistry, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Masoud Sedaghati
- PharmaCenter Bonn, Pharmaceutical Institute, Department of Pharmaceutical and Medicinal Chemistry, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Gregor Schnakenburg
- Institute of Inorganic Chemistry, University of Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
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11
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Cheruku S, Nagaraju C, Shetty P, Hassan A S, Nagarakere C S, Manikyanally N K, Kempegowda M. An efficient synthesis of medicinally important indole based triarylmethanes by using propylphosphonic anhydride (T3P ®). SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1743319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Srinivas Cheruku
- Department of Studies in Chemistry, Yuvaraja’s College, University of Mysore, Mysuru, India
| | - Chaithra Nagaraju
- Synthetic Laboratory, DOS in Chemistry, University of Mysore, Mysuru, India
| | - Poornima Shetty
- Department of Chemistry, Srinivas School of Engineering, Mangalore, India
| | - Swarup Hassan A
- Synthetic Laboratory, DOS in Chemistry, University of Mysore, Mysuru, India
| | | | - Kumara Manikyanally N
- Department of Studies in Chemistry, Yuvaraja’s College, University of Mysore, Mysuru, India
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12
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El-Meligie SEM, Khalil NA, El-Nassan HB, Ibraheem AAM. A Review on the Synthetic Routes to β-Keto Amides. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666191021120336] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarizes the data published on the methods of preparation of β-
keto amides as a versatile synthon for many heterocyclic rings and asymmetric urea derivatives.
Based on the starting materials used for the synthesis of β-keto amides, eight
methods were reported including β-keto acids and their derivatives, Meldrum’s acid and
their derivatives, diketene, 2,6-dimethyl-1,3-dioxin-4-one derivatives (TMD), α-diazo ketones,
enamines and enolates, acetamides and their derivatives and reduction of certain
Passerini products.
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Affiliation(s)
- Salwa E. M. El-Meligie
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Nadia A. Khalil
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Hala B. El-Nassan
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Ahmed A. M. Ibraheem
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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13
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Parveen N, Muthukumar A, Sekar G. Ligand‐Free and Reusable Palladium Nanoparticles‐Catalyzed Alkylation of 2‐Alkylazaarenes with Activated Ketones under Neutral Conditions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900447] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Naziya Parveen
- Department of ChemistryIndian Institute of Technology Madras Chennai – 600036 India
| | - Alagesan Muthukumar
- Department of ChemistryIndian Institute of Technology Madras Chennai – 600036 India
| | - Govindasamy Sekar
- Department of ChemistryIndian Institute of Technology Madras Chennai – 600036 India
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14
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Maji B. Stereoselective Haliranium, Thiiranium and Seleniranium Ion‐Triggered Friedel–Crafts‐Type Alkylations for Polyene Cyclizations. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Biswajit Maji
- Department of ChemistryIndira Gandhi National Tribal University Amarkantak – 484886 Madhya Pradesh India
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15
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Muthukumar A, Rao GN, Sekar G. Zn(OTf) 2-catalyzed access to symmetrical and unsymmetrical bisindoles from α-keto amides. Org Biomol Chem 2019; 17:3921-3933. [PMID: 30941387 DOI: 10.1039/c9ob00114j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zn(OTf)2-catalyzed synthesis of 3,3'-bisindolyl acetamides from α-keto amides is developed. Both aromatic α-keto amides substituted with electron-donating as well as -withdrawing groups and aliphatic α-keto amides are well tolerated to provide symmetrical bisindoles in moderate to excellent yields. The chemoselective bisindolylation of the keto group of α-keto amides in the presence of a simple keto functionality is successfully achieved in good yields. The transformation is further extended to the synthesis of challenging unsymmetrical bisindoles by treating indolyl α-hydroxy amides with substituted indoles. The unsymmetrical bisindoles are isolated in good to excellent yields.
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Affiliation(s)
- Alagesan Muthukumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, India.
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16
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A one-pot four-component domino protocol for the synthesis of indole and coumarin containing pyridine-3-carbonitrile derivatives. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-2365-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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17
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Ghosh D, Nandi R, Khamarui S, Ghosh S, Maiti DK. Selective amidation by a photocatalyzed umpolung reaction. Chem Commun (Camb) 2019; 55:3883-3886. [DOI: 10.1039/c9cc01079c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a metal-catalyzed organic transformation merged with another organophotocatalyst has been developed under mild conditions for the production of α-ketoamides.
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Affiliation(s)
- Debasish Ghosh
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | - Rajesh Nandi
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | - Saikat Khamarui
- Department of Chemistry
- Government General Degree College at Kalna-1
- Burdwan-713405
- India
| | - Sukla Ghosh
- Department of Chemistry
- Women's College, Calcutta
- Kolkata-700003
- India
| | - Dilip K. Maiti
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
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18
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Li PG, Zhu H, Fan M, Yan C, Shi K, Chi XW, Zou LH. Copper-catalyzed coupling of anthranils and α-keto acids: direct synthesis of α-ketoamides. Org Biomol Chem 2019; 17:5902-5907. [DOI: 10.1039/c9ob00822e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Copper-catalyzed coupling of α-keto acids with anthranils is reported for the synthesis of α-ketoamides bearing an aldehyde group via N–O/C–O bond cleavages and C–N bond formation.
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Affiliation(s)
- Ping-Gui Li
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Hao Zhu
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Min Fan
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Cheng Yan
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Kai Shi
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Xi-Wen Chi
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Liang-Hua Zou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
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19
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Muthukumar A, Sangeetha S, Sekar G. Recent developments in functionalization of acyclic α-keto amides. Org Biomol Chem 2018; 16:7068-7083. [DOI: 10.1039/c8ob01423j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes the synthetic utility of α-keto amides to synthesize various important molecules via mono, dual and triple functionalization reactions.
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Affiliation(s)
- Alagesan Muthukumar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Subramani Sangeetha
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Govindasamy Sekar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
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