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Strekalova S, Kononov A, Budnikova Y. Amino Acids in Electrochemical Metal-Free Benzylic C-H Amidation. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2
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Banik A, Mandal SK. Tuning Redox States of Phenalenyl-Based Molecules by Consecutive Reduction toward Transition Metal-Free Heck-Type C–C Cross-Coupling. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ananya Banik
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, India
| | - Swadhin K. Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, India
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3
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Cheng HC, Zhou L, Zhou X, Ma JL, Guo P, Zhang Y, Ji HB. Ligand-free copper-catalyzed direct amidation of diaryliodonium salts using nitriles as amidation reagents. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Wilhelm EA, Torres MLCP, Pereira CF, Vogt AG, Cervo R, Dos Santos BGT, Cargnelutti R, Luchese C. Therapeutic potential of selanyl amide derivatives in the in vitro anticholinesterase activity and in in vivo antiamnesic action. Can J Physiol Pharmacol 2020; 98:304-313. [PMID: 31821013 DOI: 10.1139/cjpp-2019-0291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The present study evaluated the in vitro acetylcholinesterase (AChE) inhibitor activity of two new selanyl amide derivatives in cerebral structures of mice. Our results demonstrated that N-(2-(3-(phenylselanyl)propoxy)phenyl)furan-2-carboxamide (1) and N-(2-(3-(phenylselanyl)propoxy)phenyl)thiophene-2-carboxamide (2) inhibited the in vitro AChE activity in mice. Another objective was to assess the effect of the best AChE inhibitor in an amnesic model induced by scopolamine (SCO) in male Swiss mice. The involvement of AChE activity and lipid peroxidation in the cerebral structures was investigated. Our results showed that compound 1 (10 mg/kg, intragastrically) attenuated the latency to find the escape box and the number of holes visited in the Barnes maze task, without altering the locomotor and exploratory activities in an open-field test. Compound 1 protected against increasing in lipid peroxidation levels and AChE activity caused by SCO in the cerebral cortex and hippocampus of mice. In conclusion, the present study evidenced the in vitro anticholinesterase effect of two new selanyl amide derivatives in the cerebral structures of mice. Moreover, compound 1, a selanyl amide derivative containing a furan ring, demonstrated antiamnesic action due to its antioxidant and anticholinesterase activities in cerebral structures.
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Affiliation(s)
- Ethel A Wilhelm
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - Marina Laura C P Torres
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - Caroline F Pereira
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - Ane G Vogt
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
| | - Rodrigo Cervo
- Department of Chemistry, Universidade Federal de Santa Maria, LMI - Laboratório de Materiais Inorgânicos, 97105-900, Santa Maria, RS, Brazil
| | - Brenda G T Dos Santos
- Department of Chemistry, Universidade Federal de Santa Maria, LMI - Laboratório de Materiais Inorgânicos, 97105-900, Santa Maria, RS, Brazil
| | - Roberta Cargnelutti
- Department of Chemistry, Universidade Federal de Santa Maria, LMI - Laboratório de Materiais Inorgânicos, 97105-900, Santa Maria, RS, Brazil
| | - Cristiane Luchese
- Programa de Pós-graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica (LaFarBio), Grupo de Pesquisa em Neurobiotecnologia (GPN), Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas (UFPel), CEP 96010-900 Pelotas, RS, Brazil
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5
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Orsy G, Fülöp F, Mándity IM. N-Acetylation of Amines in Continuous-Flow with Acetonitrile-No Need for Hazardous and Toxic Carboxylic Acid Derivatives. Molecules 2020; 25:molecules25081985. [PMID: 32340371 PMCID: PMC7221708 DOI: 10.3390/molecules25081985] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 11/16/2022] Open
Abstract
A continuous-flow acetylation reaction was developed, applying cheap and safe reagent, acetonitrile as acetylation agent and alumina as catalyst. The method developed utilizes milder reagent than those used conventionally. The reaction was tested on various aromatic and aliphatic amines with good conversion. The catalyst showed excellent reusability and a scale-up was also carried out. Furthermore, a drug substance (paracetamol) was also synthesized with good conversion and yield.
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Affiliation(s)
- György Orsy
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary;
- MTA TTK Lendület Artificial Transporter Research Group, Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudosok krt. 2, 1117 Budapest, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary;
- Research Group of Stereochemistry of the Hungarian Academy of Sciences, Dóm tér 8, H-6720 Szeged, Hungary
- Correspondence: (F.F.); (I.M.M.); Tel.: +36-1-3826-616 (I.M.M.)
| | - István M. Mándity
- MTA TTK Lendület Artificial Transporter Research Group, Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudosok krt. 2, 1117 Budapest, Hungary
- Department of Organic Chemistry, Faculty of Pharmacy, Semmelweis University, Hőgyes Endre u. 7, H-1092 Budapest, Hungary
- Correspondence: (F.F.); (I.M.M.); Tel.: +36-1-3826-616 (I.M.M.)
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6
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Liu J, Zhang C, Zhang Z, Wen X, Dou X, Wei J, Qiu X, Song S, Jiao N. Nitromethane as a nitrogen donor in Schmidt-type formation of amides and nitriles. Science 2019; 367:281-285. [DOI: 10.1126/science.aay9501] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/20/2019] [Indexed: 12/13/2022]
Abstract
The Schmidt reaction has been an efficient and widely used synthetic approach to amides and nitriles since its discovery in 1923. However, its application often entails the use of volatile, potentially explosive, and highly toxic azide reagents. Here, we report a sequence whereby triflic anhydride and formic and acetic acids activate the bulk chemical nitromethane to serve as a nitrogen donor in place of azides in Schmidt-like reactions. This protocol further expands the substrate scope to alkynes and simple alkyl benzenes for the preparation of amides and nitriles.
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Affiliation(s)
- Jianzhong Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Cheng Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ziyao Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaojin Wen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaodong Dou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xu Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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7
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Wang P, Yang Z, Wang Z, Xu C, Huang L, Wang S, Zhang H, Lei A. Electrochemical Arylation of Electron-Deficient Arenes through Reductive Activation. Angew Chem Int Ed Engl 2019; 58:15747-15751. [PMID: 31433101 DOI: 10.1002/anie.201909600] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Indexed: 01/28/2023]
Abstract
An electrochemical method has been developed to achieve arylation of electron-deficient arenes through reductive activation. Various electron-deficient arenes and aryldiazonium tetrafluoroborates are amenable to this transformation within the conditions of an undivided cell, providing the desired products in up to 92 % yield. Instead of preparing diazonium reagents, these reactions can begin from anilines, and they can be carried out in one pot. Electron paramagnetic resonance studies indicate that cathodic reduction of quinoxaline occurs using the transformation. Moreover, cyclic voltammetry indicates that both quinoxaline and aryl diazonium salt have relatively low reduction potentials, which suggests they can be activated through reduction during the reaction.
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Affiliation(s)
- Pan Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Zhenlin Yang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Ziwei Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Chenyang Xu
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Lei Huang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Shengchun Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Heng Zhang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, P. R. China.,National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, P. R. China
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8
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Wang P, Yang Z, Wang Z, Xu C, Huang L, Wang S, Zhang H, Lei A. Electrochemical Arylation of Electron‐Deficient Arenes through Reductive Activation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909600] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Pan Wang
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei P. R. China
| | - Zhenlin Yang
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei P. R. China
| | - Ziwei Wang
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei P. R. China
| | - Chenyang Xu
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei P. R. China
| | - Lei Huang
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei P. R. China
| | - Shengchun Wang
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei P. R. China
| | - Heng Zhang
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS) College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 Hubei P. R. China
- National Research Center for Carbohydrate Synthesis Jiangxi Normal University Nanchang 330022 P. R. China
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