1
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Faghtmann J, Eugui M, Nygaard Lamhauge J, Sofie Pladsbjerg Andresen S, Rask Østergaard A, Bjerregaard Svenningsen E, B Poulsen T, Anker Jørgensen K. An Enantioselective Aminocatalytic Cascade Reaction Affording Bioactive Hexahydroazulene Scaffolds. Chemistry 2024:e202401156. [PMID: 38564298 DOI: 10.1002/chem.202401156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
A novel cascade reaction initiated by an enantioselective aminocatalysed 1,3-dipolar [6+4] cycloaddition between catalytically generated trienamines and 3-oxidopyridinium betaines is presented. The [6+4] cycloadduct spontaneously undergoes an intramolecular enamine-mediated aldol, hydrolysis, and E1cb sequence, which ultimately affords a chiral hexahydroazulene framework. In this process, three new C-C bonds and three new stereocenters are formed, enabled by a formal unfolding of the pyridine moiety from the dipolar reagent. The hexahydroazulenes are formed with excellent diastereo-, regio- and periselectivity (>20 : 1), up to 96 % ee, and yields up to 52 %. Synthetic elaborations of this scaffold were performed, providing access to a variety of functionalised hydroazulene compounds, of which some were found to display biological activity in U-2OS osteosarcoma cells in cell painting assays.
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Affiliation(s)
- Jonas Faghtmann
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Macarena Eugui
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | | | | | - Anne Rask Østergaard
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | | | - Thomas B Poulsen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Karl Anker Jørgensen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
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2
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Dyguda M, Przydacz A, Albrecht Ł. Dearomative, aminocatalytic formal normal-electron-demand aza-Diels-Alder cycloaddition in the synthesis of tetrahydrofuropyridines. Chem Commun (Camb) 2023; 59:12903-12906. [PMID: 37819685 DOI: 10.1039/d3cc03946c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
In the manuscript the application of dearomative formal normal-electron-demand aza-Diels-Alder cycloaddition in the synthesis of tetrahydrofuropyridines is described. The developed approach utilizes aminocatalytic activation of 2-alkyl-3-furfurals that proceeds via formation of the dearomatized dienamine intermediate. Initially obtained cycloadducts have been subjected to subsequent transformations providing access to tetrahydrofuropyridines or functionalized cinnamates. The mechanism of the process has been confirmed by DFT calculations.
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Affiliation(s)
- Mateusz Dyguda
- Faculty of Chemistry, Institute of Organic Chemistry Lodz University of Technology Żeromskiego 114, 90-543 Lodz, Poland.
| | - Artur Przydacz
- Faculty of Chemistry, Institute of Organic Chemistry Lodz University of Technology Żeromskiego 114, 90-543 Lodz, Poland.
| | - Łukasz Albrecht
- Faculty of Chemistry, Institute of Organic Chemistry Lodz University of Technology Żeromskiego 114, 90-543 Lodz, Poland.
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3
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N-Amidation of Nitrogen-Containing Heterocyclic Compounds: Can We Apply Enzymatic Tools? Bioengineering (Basel) 2023; 10:bioengineering10020222. [PMID: 36829716 PMCID: PMC9951958 DOI: 10.3390/bioengineering10020222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/20/2023] [Accepted: 01/31/2023] [Indexed: 02/10/2023] Open
Abstract
Amide bond is often seen in value-added nitrogen-containing heterocyclic compounds, which can present promising chemical, biological, and pharmaceutical significance. However, current synthesis methods in the preparation of amide-containing N-heterocyclic compounds have low specificity (large amount of by-products) and efficiency. In this study, we focused on reviewing the feasible enzymes (nitrogen acetyltransferase, carboxylic acid reductase, lipase, and cutinase) for the amidation of N-heterocyclic compounds; summarizing their advantages and weakness in the specific applications; and further predicting candidate enzymes through in silico structure-functional analysis. For future prospects, current enzymes demand further engineering and improving for practical industrial applications and more enzymatic tools need to be explored and developed for a broader range of N-heterocyclic substrates.
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4
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Wei Y, Yan Y, Li X, Xie L, Huang W. Covalent nanosynthesis of fluorene-based macrocycles and organic nanogrids. Org Biomol Chem 2021; 20:73-97. [PMID: 34859249 DOI: 10.1039/d1ob01558c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gridization is an alternative way to create macromolecules of various sizes in addition to linear and dendritic polymerization as well as cyclization. Organic nanogrids are an expanding family of macrocycle-like closed structures at the nanoscale, but with a series of well-defined extension edges and vertices. Cyclic nanogrids can be used as nanoscale building blocks for the fabrication of not only rotaxanes, catenanes, knots, 3D cages, but also nanopolymers, covalent organic frameworks (COFs), metal-organic frameworks (MOFs), and complex molecular cross-scale architectures. In this review, the history of fluorene-based macrocycles has first been explored, followed by the development of the synthetic methodologies; in particular, fluorene-based nanogrids are highlighted owing to their features and applications. Typically, fluorenes are fused arenes with a hybrid entity between tetrahedral Csp3 and Csp2. Four ingenious connection modes of fluorene-based macrocycles, including 2,7-, 3,6-, 9,9-, and 2,9-linkages, fully demonstrate the geometric possibilities of the macrocycles and nanogrids. Such fluorene-based nanogrids will give birth to organic intelligence.
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Affiliation(s)
- Ying Wei
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Yongxia Yan
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Xiaoyan Li
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Linghai Xie
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Wei Huang
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China. .,Frontiers Science Center for Flexible Electronics (FSCFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Northwestern Polytechnical University, Xi'an 710072, China
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5
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Abstract
In this contribution, we provide a comprehensive overview of acyclic twisted amides, covering the literature since 1993 (the year of the first recognized report on acyclic twisted amides) through June 2020. The review focuses on classes of acyclic twisted amides and their key structural properties, such as amide bond twist and nitrogen pyramidalization, which are primarily responsible for disrupting nN to π*C═O conjugation. Through discussing acyclic twisted amides in comparison with the classic bridged lactams and conformationally restricted cyclic fused amides, the reader is provided with an overview of amidic distortion that results in novel conformational features of acyclic amides that can be exploited in various fields of chemistry ranging from organic synthesis and polymers to biochemistry and structural chemistry and the current position of acyclic twisted amides in modern chemistry.
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Affiliation(s)
- Guangrong Meng
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Jin Zhang
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States.,College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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6
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Vinogradov MG, Turova OV, Zlotin SG. Catalytic Asymmetric Aza‐Diels‐Alder Reaction: Pivotal Milestones and Recent Applications to Synthesis of Nitrogen‐Containing Heterocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001307] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Maxim G. Vinogradov
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russian Federation
| | - Olga V. Turova
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russian Federation
| | - Sergei G. Zlotin
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russian Federation
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7
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Mitkari SB, Medina-Ortíz A, Olivares-Romero JL, Vázquez MA, Peña-Cabrera E, Villegas Gómez C, Cruz Cruz D. Organocatalytic Cascade Reactions for the Diversification of Thiopyrano-Piperidone Fused Rings Utilizing Trienamine Activation. Chemistry 2020; 27:618-621. [PMID: 33169452 DOI: 10.1002/chem.202004553] [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] [Received: 10/12/2020] [Revised: 11/05/2020] [Indexed: 11/10/2022]
Abstract
An aminocatalytic privileged diversity-oriented synthesis (ApDOS) strategy utilizing trienamine catalysis for the construction of diverse and complex thiopyrans-piperidone fused rings through a thia-Diels-Alder/nucleophilic ring-closing sequence by using dithioamides as activated heterodienophiles is reported. Following this strategy, a super cascade reaction to assemble nine fused rings can be achieved by employing a bis-dithioamide. Additionally, by linking an indole moiety on the dithioamide, a Pictet-Spengler type reaction can be promoted once the cascade sequence has been achieved, leading to more complex penta- hexa- and heptacyclic fused ring derivatives in a one-pot process. This investigation opens new perspectives for the synthesis of a new class of complex and diverse thiopyrans that contribute to populate new relevant regions in the chemical space.
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Affiliation(s)
- Suhas Balasaheb Mitkari
- Departamento de Química, División de Ciencias NaturalesyExactas, Universidad de Guanajuato, Noria Alta S/N, 36050 Guanajuato, Gto., México
| | - Alberto Medina-Ortíz
- Departamento de Química, División de Ciencias NaturalesyExactas, Universidad de Guanajuato, Noria Alta S/N, 36050 Guanajuato, Gto., México
| | - José Luis Olivares-Romero
- Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C., Carretera Antigua a Coatepec 351, El Haya, Xalapa, Ver., 91070, México
| | - Miguel A Vázquez
- Departamento de Química, División de Ciencias NaturalesyExactas, Universidad de Guanajuato, Noria Alta S/N, 36050 Guanajuato, Gto., México
| | - Eduardo Peña-Cabrera
- Departamento de Química, División de Ciencias NaturalesyExactas, Universidad de Guanajuato, Noria Alta S/N, 36050 Guanajuato, Gto., México
| | - Clarisa Villegas Gómez
- Departamento de Química, División de Ciencias NaturalesyExactas, Universidad de Guanajuato, Noria Alta S/N, 36050 Guanajuato, Gto., México
| | - David Cruz Cruz
- Departamento de Química, División de Ciencias NaturalesyExactas, Universidad de Guanajuato, Noria Alta S/N, 36050 Guanajuato, Gto., México
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8
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Pawar TJ, Mitkari SB, Peña‐Cabrera E, Villegas Gómez C, Cruz Cruz D. Polyenals and Polyenones in Aminocatalysis: A Decade Building Complex Frameworks from Simple Blocks. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000570] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tushar Janardan Pawar
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
| | - Suhas Balasaheb Mitkari
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
| | - Eduardo Peña‐Cabrera
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
| | - Clarisa Villegas Gómez
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
| | - David Cruz Cruz
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
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9
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Wang ZY, Yang T, Chen R, Ma X, Liu H, Wang KK. 1,3-Dipolar cycloaddition of isatin N, N'-cyclic azomethine imines with α,β-unsaturated aldehydes catalyzed by DBU in water. RSC Adv 2020; 10:24288-24292. [PMID: 35516173 PMCID: PMC9055116 DOI: 10.1039/d0ra03806g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/18/2020] [Indexed: 11/22/2022] Open
Abstract
A simple and green procedure was established by [3 + 3] cycloaddition reaction of isatin derived cyclic imine 1,3-dipoles with α,β-unsaturated aldehydes, giving the desired spiro heterocyclic oxindoles with aza-quaternary centers in good yields and diastereoselectivities. It should be noted that water can be employed as a suitable solvent for the improvement of diastereoselectivity. A simple and green procedure was established by [3 + 3] cycloaddition reaction of isatin derived cyclic imine 1,3-dipoles with α,β-unsaturated aldehydes, giving spirooxindoles with aza-quaternary center in good yields and diastereoselectivities.![]()
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Affiliation(s)
- Zhan-Yong Wang
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
| | - Ting Yang
- Medical College, Xinxiang University Xinxiang 453003 P. R. China
| | - Rongxiang Chen
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
| | - Xueji Ma
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
| | - Huan Liu
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
| | - Kai-Kai Wang
- College of Chemistry and Chemical Engineering, Xinxiang University Xinxiang 453003 P. R. China
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10
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Cano JRG, López J, Vázquez MA, Cruz DC, Gómez CV. Trienamines for the Organocatalytic Synthesis of Nitrogen-Containing Heterocycles. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190617164651] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Nitrogen-containing heterocycles (NCH), constitute an important group of molecules, which are widely extended in whole chemical space. These compounds are of great interest due to their diverse biological activities. Currently, many compounds derived from NCH are used as powerful drugs for the treatment of diseases ranging from bactericides to anticancer agents. During last decade, the enantioselective synthesis of numerous heterocyclic compounds has been achieved through the use of chiral organocatalysts. The present contribution explores the application of the aminocatalysis towards the synthesis of NCH, particularly through the trienamine catalysis.
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Affiliation(s)
- Jessica R. Gutiérrez Cano
- Departamento de Quimica, Division de Ciencias Naturales y Exactas, Universidad de Guanajuato. Noria Alta S/N, 36050 Guanajuato, Gto, Mexico
| | - Julio López
- Departamento de Quimica, Division de Ciencias Naturales y Exactas, Universidad de Guanajuato. Noria Alta S/N, 36050 Guanajuato, Gto, Mexico
| | - Miguel A. Vázquez
- Departamento de Quimica, Division de Ciencias Naturales y Exactas, Universidad de Guanajuato. Noria Alta S/N, 36050 Guanajuato, Gto, Mexico
| | - David Cruz Cruz
- Departamento de Quimica, Division de Ciencias Naturales y Exactas, Universidad de Guanajuato. Noria Alta S/N, 36050 Guanajuato, Gto, Mexico
| | - Clarisa Villegas Gómez
- Departamento de Quimica, Division de Ciencias Naturales y Exactas, Universidad de Guanajuato. Noria Alta S/N, 36050 Guanajuato, Gto, Mexico
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11
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Wang PL, Xie LH, Joseph EA, Li JR, Su XO, Zhou HC. Metal-Organic Frameworks for Food Safety. Chem Rev 2019; 119:10638-10690. [PMID: 31361477 DOI: 10.1021/acs.chemrev.9b00257] [Citation(s) in RCA: 271] [Impact Index Per Article: 54.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Food safety is a prevalent concern around the world. As such, detection, removal, and control of risks and hazardous substances present from harvest to consumption will always be necessary. Metal-organic frameworks (MOFs), a class of functional materials, possess unique physical and chemical properties, demonstrating promise in food safety applications. In this review, the synthesis and porosity of MOFs are first introduced by some representative examples that pertain to the field of food safety. Following that, the application of MOFs and MOF-based materials in food safety monitoring, food processing, covering preservation, sanitation, and packaging is overviewed. Future perspectives, as well as potential opportunities and challenges faced by MOFs in this field will also be discussed. This review aims to promote the development and progress of MOF chemistry and application research in the field of food safety, potentially leading to novel solutions.
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Affiliation(s)
- Pei-Long Wang
- Institute of Quality Standards and Testing Technology for Agro-products , Chinese Academy of Agricultural Sciences , Beijing 100081 , P. R. China.,Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering , Beijing University of Technology , Beijing 100124 , P. R. China
| | - Lin-Hua Xie
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering , Beijing University of Technology , Beijing 100124 , P. R. China
| | - Elizabeth A Joseph
- Department of Chemistry , Texas A&M University , P.O. Box 30012, College Station , Texas 77842-3012 , United States
| | - Jian-Rong Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering , Beijing University of Technology , Beijing 100124 , P. R. China
| | - Xiao-Ou Su
- Institute of Quality Standards and Testing Technology for Agro-products , Chinese Academy of Agricultural Sciences , Beijing 100081 , P. R. China
| | - Hong-Cai Zhou
- Department of Chemistry , Texas A&M University , P.O. Box 30012, College Station , Texas 77842-3012 , United States
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12
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Muthusamy S, Kesavan V. Asymmetric Cycloaddition Reactions of Oxindole α-Keto Esters via Cascade Dienamine-Enamine and Trienamine Strategies. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900567] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Subramaniam Muthusamy
- Chemical Biology Laboratory; Department of Biotechnology; Bhupat and Jyothi Mehta School of Biosciences Building; Indian Institute of Technology Madras; -600036 Chennai India
| | - Venkitasamy Kesavan
- Chemical Biology Laboratory; Department of Biotechnology; Bhupat and Jyothi Mehta School of Biosciences Building; Indian Institute of Technology Madras; -600036 Chennai India
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13
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Inoshita T, Goshi K, Morinaga Y, Umeda Y, Ishikawa H. Enantioselective Construction of Octahydroquinolines via Trienamine-Mediated Diels-Alder Reactions. Org Lett 2019; 21:2903-2907. [PMID: 30950281 DOI: 10.1021/acs.orglett.9b00932] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A trienamine-mediated asymmetric Diels-Alder reaction using a 5-nitro-2,3-dihydro-4-pyridone derivative as a dienophile in the presence of a secondary amine organocatalyst derived from cis-hydroxyproline was discovered. The reaction provides optically active octahydroquinolines through an endo-selective [4 + 2] cyclization pathway. The following stereoselective denitration, isomerization, and/or hydrogenation generated divergent stereoisomers of decahydroquinolines, which are useful synthons for the total synthesis of Lycopodium alkaloids.
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Affiliation(s)
- Taichi Inoshita
- Department of Chemistry, Graduate School of Science and Technology , Kumamoto University , 2-39-1, Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Kei Goshi
- Department of Chemistry, Graduate School of Science and Technology , Kumamoto University , 2-39-1, Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Yuka Morinaga
- Department of Chemistry, Graduate School of Science and Technology , Kumamoto University , 2-39-1, Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Yuhei Umeda
- Department of Chemistry, Graduate School of Science and Technology , Kumamoto University , 2-39-1, Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Hayato Ishikawa
- Department of Chemistry, Graduate School of Science and Technology , Kumamoto University , 2-39-1, Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan.,Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1, Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
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14
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Gao F, Zhong R, Xu H, Su Z. Constructing Stable π‐Dimers: Two Parallel Pancake π–π Bonds. Chemistry 2018; 24:16919-16924. [DOI: 10.1002/chem.201804598] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Feng‐Wei Gao
- Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
| | - Rong‐Lin Zhong
- Institute of Theoretical Chemistry Jilin University Changchun 130023 P. R. China
| | - Hong‐Liang Xu
- Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
| | - Zhong‐Min Su
- Institute of Functional Material Chemistry, National & Local United Engineering Laboratory for Power Batteries Department of Chemistry Northeast Normal University Changchun 130024 P. R. China
- School of Chemistry & Environmental Engineering Changchun University of Science and Technology Changchun 130012 P. R. China
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15
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Pilli RA, Assis FFDE. Organic Synthesis: New Vistas in the Brazilian Landscape. AN ACAD BRAS CIENC 2018; 90:895-941. [PMID: 29742201 DOI: 10.1590/0001-3765201820170564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 11/29/2017] [Indexed: 12/20/2022] Open
Abstract
In this overview, we present our analysis of the future of organic synthesis in Brazil, a highly innovative and strategic area of research which underpins our social and economical progress. Several different topics (automation, catalysis, green chemistry, scalability, methodological studies and total syntheses) were considered to hold promise for the future advance of chemical sciences in Brazil. In order to put it in perspective, contributions from Brazilian laboratories were selected by the citations received and importance for the field and were benchmarked against some of the most important results disclosed by authors worldwide. The picture that emerged reveals a thriving area of research, with new generations of well-trained and productive chemists engaged particularly in the areas of green chemistry and catalysis. In order to fulfill the promise of delivering more efficient and sustainable processes, an integration of the academic and industrial research agendas is to be expected. On the other hand, academic research in automation of chemical processes, a well established topic of investigation in industrial settings, has just recently began in Brazil and more academic laboratories are lining up to contribute. All these areas of research are expected to enable the future development of the almost unchartered field of scalability.
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16
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Yue JF, Ran GY, Yang XX, Du W, Chen YC. Asymmetric Diels–Alder cycloadditions of benzofulvene-based 2,4-dienals via trienamine activation. Org Chem Front 2018. [DOI: 10.1039/c8qo00653a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A new type of 2,4-dienal featuring a benzofulvene skeleton is utilised in asymmetric Diels–Alder cycloadditions with 3-olefinic oxindoles via trienamine catalysis.
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Affiliation(s)
- Jing-Fei Yue
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Guang-Yao Ran
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Xing-Xing Yang
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Wei Du
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Ying-Chun Chen
- Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
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17
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Chanda T, Zhao JC. Recent Progress in Organocatalytic Asymmetric Domino Transformations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701059] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tanmoy Chanda
- Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-0698 USA
| | - John C.‐G. Zhao
- Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-0698 USA
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18
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Ran GY, Gong M, Yue JF, Yang XX, Zhou SL, Du W, Chen YC. Asymmetric Cascade Assembly of 1,2-Diaza-1,3-dienes and α,β-Unsaturated Aldehydes via Dienamine Activation. Org Lett 2017; 19:1874-1877. [PMID: 28350461 DOI: 10.1021/acs.orglett.7b00636] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guang-Yao Ran
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ming Gong
- Ruian City People’s Hospital, Ruian 325200, Zhejiang
Province, China
| | - Jing-Fei Yue
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xing-Xing Yang
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Su-Lan Zhou
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Wei Du
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ying-Chun Chen
- Department
of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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