1
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Elsisi DM, Mohamed AM, Seadawy MG, Ahmed A, Abou-Amra ES. One pot multi-component synthesis of novel functionalized pyrazolo furan-2(5H)-one derivatives: in vitro, DFT, molecular docking, and pharmacophore studies, as coronavirus inhibitors. Mol Divers 2024:10.1007/s11030-024-10885-x. [PMID: 39168959 DOI: 10.1007/s11030-024-10885-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/23/2024] [Indexed: 08/23/2024]
Abstract
New and facile one-pot approach for the syntheses of 12 derivatives of 3,5-disubstituted furane-2(5H)-one (4a-l) from easily available starting materials. The suitable synthetic procedures for selective synthesis of diverse furane-2(5H)-one derivatives were achieved via multi-component condensation of 1,3-diphenyl-1H-pyrazole-4-carbaldehyde (1), pyruvic acid and different aromatic amines 3a-l in good to high yields and short reaction time by refluxing in acetic acid as well as obtained by another method (method B) when unsaturated arylidene pyruvic acid 6 was refluxed with different aromatic amines in acetic acid but in smaller yield than method A. Structures of the prepared compounds were elucidated by elemental analysis and spectral data as mass, IR, 1H-NMR and 13C-NMR spectroscopy. The antiviral efficacy of compounds 4a-l against SARS-CoV-2 was evaluated using the MTT assay. It was demonstrated that synthetic compounds 4c-e and 4h-j have a potent and selective inhibitory effect on SARS-CoV-2, a strain obtained from Egyptian patients. We utilized density-functional theory (DFT) analyses to deduce the molecular structures and topologies of the more energetic molecules. Molecular docking studies were performed against the SARS-CoV-2 main protease (PDB ID: 6Y84) and the SARS-CoV-2 Nsp9 RNA binding protein (PDB ID: 6W4B) to study the binding mechanism, non-bonding interactions, and binding affinity. Lastly, a hypothetical pharmacophore model was constructed by applying the Molecular Operating Environment (MOE) tool and eleven pharmaceuticals with proven antiviral activity.
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Affiliation(s)
- Doaa M Elsisi
- Department of Chemistry, Faculty of Science (Girl's Branch), Al-Azhar University, Yousef Abbas Street, Cairo, 11754, Nasr City, Egypt
| | - Ashraf M Mohamed
- Applied Organic Chemistry Department, National Research Centre, Dokki, 12622, Giza, Egypt.
| | - Mohamed G Seadawy
- Biological Prevention Department, Chemical Warfare, Cairo, 11351, Egypt
| | - Aya Ahmed
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, El-Sheikh Zayed, Cairo, 12588, Egypt
| | - Eman S Abou-Amra
- Department of Chemistry, Faculty of Science (Girl's Branch), Al-Azhar University, Yousef Abbas Street, Cairo, 11754, Nasr City, Egypt.
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2
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Li WF, Xu QH, Miao QY, Xiao B. Dual Photoredox/Nickel Catalysis Enables Diastereoselective Synthesis of Multisubstituted γ-Lactams Using Alkyl-GeMe 3 as Radical Precursors. J Org Chem 2024. [PMID: 38323758 DOI: 10.1021/acs.joc.3c02348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Herein, we report a single-step, multicomponent approach to versatile γ-lactams through dual photoredox/nickel-catalyzed dicarbofunctionalization of α,β-unsaturated γ-butyrolactam. This reaction utilized alkyl trimethylgermanium as a radical precursor and acyl chloride as the electrophile, demonstrating remarkable functional group compatibility.
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Affiliation(s)
- Wen-Feng Li
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Qing-Hao Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Qi-Yue Miao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Bin Xiao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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3
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Liang C, Zheng K, Ding Y, Gao J, Wang Z, Cheng J. Pyridine-catalyzed ring-opening reaction of cyclopropenone with bromomethyl carbonyl compounds toward furan-2(5 H)-ones. Chem Commun (Camb) 2024. [PMID: 38258845 DOI: 10.1039/d3cc05888c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
We developed a pyridine-catalyzed annulation of diaryl cyclopropenone with bromomethyl carbonyl compounds leading to 5-carbonyl furan-2(5H)-ones. Pyridinium, derived from the reaction of bromomethyl carbonyl and pyridine, triggered the reaction by the inter-molecular Michael addition to cyclopropenone. This procedure was sensitive neither to air nor moisture and proceeded at room temperature with broad substrate scopes and good functional group tolerance in moderate-to-good yields. As such, it represents a facile and practical pathway leading to 5-carbonyl furan-2(5H)-one derivatives.
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Affiliation(s)
- Chen Liang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China.
| | - Kui Zheng
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China.
| | - Yifang Ding
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China.
| | - Junhang Gao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China.
| | - Zhenlian Wang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China.
| | - Jiang Cheng
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China.
- Lab of Biohealth Materials and Chemistry of Wenzhou, Wenzhou University, Wenzhou 325035, P. R. China
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4
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Scrivener S, Wang Y, Wang YM. Iron-Catalyzed Coupling of Alkenes and Enones: Sakurai-Michael-type Conjugate Addition of Catalytic Allyliron Nucleophiles. Org Lett 2023; 25:1420-1424. [PMID: 36847432 PMCID: PMC10006348 DOI: 10.1021/acs.orglett.3c00139] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Indexed: 03/01/2023]
Abstract
The iron-catalyzed coupling of alkenes and enones through allylic C(sp3)-H functionalization is reported. This redox-neutral process employs a cyclopentadienyliron(II) dicarbonyl catalyst and simple alkene substrates to generate catalytic allyliron intermediates for 1,4-addition to chalcones and other conjugated enones. The use of 2,4,6-collidine as the base and a combination of triisopropylsilyl triflate and LiNTf2 as Lewis acids was found to facilitate this transformation under mild, functional group-tolerant conditions. Both electronically unactivated alkenes as well as allylbenzene derivatives could be employed as pronucleophilic coupling partners, as could a range of enones bearing electronically varied substituents.
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Affiliation(s)
- Sarah
G. Scrivener
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Yidong Wang
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
- School
of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Yi-Ming Wang
- Department
of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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5
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Wang T, You Y, Wang ZH, Zhao JQ, Zhang YP, Yin JQ, Zhou MQ, Cui BD, Yuan WC. Copper-Catalyzed Diastereo- and Enantioselective Decarboxylative [3 + 2] Cyclization of Alkyne-Substituted Cyclic Carbamates with Azlactones: Access to γ-Butyrolactams Bearing Two Vicinal Tetrasubstituted Carbon Stereocenters. Org Lett 2023. [PMID: 36800376 DOI: 10.1021/acs.orglett.3c00075] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
A copper-catalyzed diastereo- and enantioselective decarboxylative [3 + 2] cyclization reaction of alkyne-substituted cyclic carbamates with azlactones has been established. A range of optically pure γ-butyrolactams bearing two vicinal tetrasubstituted carbon stereocenters were obtained in high yields with good to excellent stereoselectivities (up to 99% yield, 99:1 dr, and 99% ee). This is the first example of asymmetric synthesis γ-butyrolactams containing sterically congested vicinal tetrasubstituted stereocenters via a decarboxylative cyclization pathway.
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Affiliation(s)
- Ting Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.,School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jun-Qing Yin
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Ming-Qiang Zhou
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Bao-Dong Cui
- School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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6
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Huang ZY, Yang H, Zhou L, Li QH, Zhao ZG. Et3N catalyzed direct α-addition cascade isomerization of deconjugated butenolides with α-ketoesters for the synthesis of α,γ-disubstituted butenolide derivatives. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Kerru N, Maddila S, Jonnalagadda SB. Organo-catalysis as emerging tools in organic synthesis: aldol and Michael reactions. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Organocatalysis has occupied sustainable position in organic synthesis as a powerful tool for the synthesis of enantiomeric-rich compounds with multiple stereogenic centers. Among the various organic molecules for organocatalysis, the formation of carbon–carbon is viewed as a challenging issue in organic synthesis. The asymmetric aldol and Michael addition reactions are the most significant methods for C–C bond forming reactions. These protocols deliver a valuable path to access chiral molecules, which are useful synthetic hybrids in biologically potent candidates and desirable versatile pharmaceutical intermediates. This work highlighted the impact of organocatalytic aldol and Michael addition reactions in abundant solvent media. It focused on the crucial methods to construct valuable molecules with high enantio- and diastereo-selectivity.
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Affiliation(s)
- Nagaraju Kerru
- Department of Chemistry , GITAM School of Science, GITAM University , Bengaluru , Karnataka - 561203 , India
| | - Suresh Maddila
- Department of Chemistry , GITAM Institute of Sciences, GITAM University , Visakhapatnam , Andhra Pradesh , India
- School of Chemistry & Physics, University of KwaZulu-Natal , Westville Campus , Chiltern Hills , Durban - 4000 , South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal , Westville Campus , Chiltern Hills , Durban - 4000 , South Africa
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8
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Li H, Yin L. Research Progress of Copper-Catalyzed Direct Vinylogous Reactions. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202201033] [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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9
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Vinylogous and Arylogous Stereoselective Base-Promoted Phase-Transfer Catalysis. Catalysts 2021. [DOI: 10.3390/catal11121545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Vinylogous enolate and enolate-type carbanions, generated by deprotonation of α,β-unsaturated compounds and characterized by delocalization of the negative charge over two or more carbon atoms, are extensively used in organic synthesis, enabling functionalization and C–C bond formation at remote positions. Similarly, reactions with electrophiles at benzylic and heterobenzylic position are performed through generation of arylogous and heteroarylogous enolate-type nucleophiles. Although widely exploited in metal-catalysis and organocatalysis, it is only in recent years that the vinylogy and arylogy principles have been translated fruitfully in phase-transfer catalyzed processes. This review provides an overview of the methods developed to date, involving vinylogous and (hetero)arylogous carbon nucleophiles under phase-transfer catalytic conditions, highlighting main mechanistic aspects.
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10
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Romaniszyn M, Gronowska K, Albrecht Ł. Remote Functionalization of 4‐(Alk‐1‐en‐1‐yl)‐3‐Cyanocoumarins via the Asymmetric Organocatalytic 1,6‐Addition. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marta Romaniszyn
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Zeromskiego 116 90-924 Łódź Poland
| | - Katarzyna Gronowska
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Zeromskiego 116 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Zeromskiego 116 90-924 Łódź Poland
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11
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Silyldienolates in Organocatalytic Enantioselective Vinylogous Mukaiyama-Type Reactions: A Review. Molecules 2021; 26:molecules26226902. [PMID: 34833996 PMCID: PMC8620713 DOI: 10.3390/molecules26226902] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/13/2021] [Accepted: 11/14/2021] [Indexed: 11/17/2022] Open
Abstract
Mukaiyama aldol, Mannich, and Michael reactions are arguably amongst the most important C-C bond formation processes and enable access to highly relevant building blocks of various natural products. Their vinylogous extensions display equally high potential in the formation of important key intermediates featuring even higher functionalization possibilities through an additional conjugated C-C double bond. Hence, it is much desired to develop highly selective vinylogous methods in order to enable unconventional, more efficient asymmetric syntheses of biologically active compounds. In this regard, silyl-dienolates were discovered to display high regioselectivities due to their tendency toward γ-additions. The control of the enantio- and diastereoinduction of these processes have been for a long time dominated by transition metal catalysis, but it received serious competition by the application of organocatalytic approaches since the beginning of this century. In this review, the organocatalytic applications of silyl-dienolates in asymmetric vinylogous C-C bond formations are summarized, focusing on their scope, characteristics, and limitations.
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12
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Chatterjee S, Sahoo R, Nanda S. Recent reports on the synthesis of γ-butenolide, γ-alkylidenebutenolide frameworks, and related natural products. Org Biomol Chem 2021; 19:7298-7332. [PMID: 34612357 DOI: 10.1039/d1ob00875g] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
γ-Butenolides are fundamental frameworks found in many naturally occurring compounds, and they exhibit tremendous biological activities. γ-Butenolides also have proven their potential as useful synthetic intermediates in the total synthesis of natural compounds. Over the years, many γ-butenolide natural products have been isolated, having exocyclic γ-δ unsaturation in their structure. These natural products are collectively referred to as γ-alkylidenebutenolides. Considering the different biological profiles and wide-ranging structural diversity of the optically active γ-butenolide, the development of synthetic strategies for assembling such challenging scaffolds has attracted significant attention from synthetic chemists in recent times. In this report, a brief discussion will be provided to address isolation, biogenesis, and current state-of-the-art synthetic protocols for such molecules. This report aims to focus on synthetic strategies for γ-butenolides from 2010-2020 with a particular emphasis on γ-alkylidenebutenolides and related molecules. Metal-mediated catalytic transformation and organocatalysis are the two main reaction types that have been widely used to access such molecules. Mechanistic considerations, enantioselective synthesis, and practical applications of the reported procedures are also taken into consideration.
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Affiliation(s)
- Shrestha Chatterjee
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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13
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Oiarbide M, Palomo C. Extended Enolates: Versatile Intermediates for Asymmetric C-H Functionalization via Noncovalent Catalysis. Chemistry 2021; 27:10226-10246. [PMID: 33961323 PMCID: PMC8361983 DOI: 10.1002/chem.202100756] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Indexed: 12/22/2022]
Abstract
Catalyst-controlled functionalization of unmodified carbonyl compounds is a relevant operation in organic synthesis, especially when high levels of site- and stereoselectivity can be attained. This objective is now within reach for some subsets of enolizable substrates using various types of activation mechanisms. Recent contributions to this area include enantioselective transformations that proceed via transiently generated noncovalent di(tri)enolate-catalyst coordination species. While relatively easier to form than simple enolate congeners, di(tri)enolates are ambifunctional in nature and so control of the reaction regioselectivity becomes an issue. This Minireview discusses in some detail this and other problems, and how noncovalent activation approaches based on metallic and metal free catalysts have been developed to advance the field.
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Affiliation(s)
- Mikel Oiarbide
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHUManuel Lardizabal 320018San SebastiánSpain
| | - Claudio Palomo
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHUManuel Lardizabal 320018San SebastiánSpain
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14
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Ullah Z, Kim K, Venkanna A, Kim HS, Kim MI, Kim MH. Plausible Pnicogen Bonding of epi-Cinchonidine as a Chiral Scaffold in Catalysis. Front Chem 2021; 9:669515. [PMID: 34295874 PMCID: PMC8290064 DOI: 10.3389/fchem.2021.669515] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 06/10/2021] [Indexed: 12/11/2022] Open
Abstract
As a non-covalent interaction of a chiral scaffold in catalysis, pnicogen bonding of epi-cinchonidine (epi-CD), a cinchona alkaloid, was simulated to consider whether the interaction can have the potential controlling enantiotopic face like hydrogen bonding. Among five reactive functional groups in epi-CD, two stable complexes of the hydroxyl group (X-epi-CD1) at C17 and of the quinoline ring (X-epi-CD2) at N16 with pnictide family analytes [X = substituted phosphine (PX), i.e., F, Br, Cl, CF3, CN, HO, NO2, and CH3, and pnictide family analytes, i.e., PBr3, BiI3, SbI3, and AsI3] were predicted with intermolecular interaction energies, charge transfer (QMulliken and QNBO), and band gap energies of HOMO-LUMO (Eg) at the B3LYP/6-31G(d,p) level of density functional theory. It was found that the dominant site of pnicogen bonding in epi-CD is the quinoline ring (N16 atom) rather than the hydroxyl group (O36 atom). In addition, the UV-Vis spectra of the complex were calculated by time-dependent density functional theory (TD-DFT) at the B3LYP/6-31+G(d,p) level and compared with experimental measurements. Through these calculations, two intermolecular interactions (H-bond vs. pnicogen bond) of epi-CD were compared.
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Affiliation(s)
- Zakir Ullah
- Department of Pharmacy, College of Pharmacy, Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, South Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Kang Kim
- Department of Pharmacy, College of Pharmacy, Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, South Korea
| | - Arramshetti Venkanna
- Department of Pharmacy, College of Pharmacy, Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, South Korea
| | - Hye Su Kim
- Department of BioNano Technology, Gachon University, Seongnam, South Korea
| | - Moon Il Kim
- Department of BioNano Technology, Gachon University, Seongnam, South Korea
| | - Mi-Hyun Kim
- Department of Pharmacy, College of Pharmacy, Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, South Korea
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15
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Tian Y, Shang Y, Su W. DBU‐Catalyzed Regioselective
α
‐Alkylation of Enones Using the Vinylogous Strategy. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yawei Tian
- College of Chemistry Fuzhou University 2 Xueyuan Road Fuzhou Fujian 350108 P. R. China
- State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Yangqiao West Road 155 Fuzhou Fujian 350002 P. R. China
| | - Yaping Shang
- State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Yangqiao West Road 155 Fuzhou Fujian 350002 P. R. China
| | - Weiping Su
- College of Chemistry Fuzhou University 2 Xueyuan Road Fuzhou Fujian 350108 P. R. China
- State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Yangqiao West Road 155 Fuzhou Fujian 350002 P. R. China
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16
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Hoxha S, Kalaitzakis D, Bosveli A, Montagnon T, Vassilikogiannakis G. One-Pot Transformation of Furans into 1-Azaspirocyclic Alkaloid Frameworks Induced by Visible Light. Org Lett 2021; 23:5354-5358. [PMID: 34180682 DOI: 10.1021/acs.orglett.1c01661] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
High-value 1-azaspirocyclic scaffolds have been made from simple and readily accessible furan precursors in a single operation. The protocol is a one-pot sequence using highly sustainable conditions (oxygen, visible light, and a favored green solvent) that leads to a dramatic increase in molecular complexity. The initial substrates can include functionalities that are suitable for further elaboration; in this way, the pruned polycyclic skeletons of the stemonamine, cylindricine, and lepadiformine natural products were rapidly accessed.
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Affiliation(s)
- Stela Hoxha
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Dimitris Kalaitzakis
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Artemis Bosveli
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Tamsyn Montagnon
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Iraklion, Crete, Greece
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17
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Li L, El Khoury A, Clement BO, Harran PG. Re-visiting the diastereoselectivity of organocatalytic conjugate addition of 2-trimethylsiloxyfuran to trans-crotonaldehyde. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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18
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Wang S, Liu Z, Yue W, Yin L. Copper(I)‐Catalyzed Asymmetric Vinylogous Aldol‐Type Reaction of Allylazaarenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Si‐Qing Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Zong‐Ci Liu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Wen‐Jun Yue
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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19
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Wang S, Liu Z, Yue W, Yin L. Copper(I)‐Catalyzed Asymmetric Vinylogous Aldol‐Type Reaction of Allylazaarenes. Angew Chem Int Ed Engl 2021; 60:4604-4608. [DOI: 10.1002/anie.202013207] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/16/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Si‐Qing Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Zong‐Ci Liu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Wen‐Jun Yue
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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20
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Kondoh A, Terada M. Brønsted Base-Catalyzed Formal Reductive [3+2] Annulation of 4,4,4-Trifluorocrotonate and α-Iminoketones. Chemistry 2021; 27:585-588. [PMID: 32869872 DOI: 10.1002/chem.202002943] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/27/2020] [Indexed: 02/01/2023]
Abstract
A formal reductive [3+2] annulation of 4,4,4-trifluorocrotonate and α-iminoketones was developed under Brønsted base catalysis. A single phosphazene base efficiently catalyzes the one-pot tandem reaction involving two mechanistically different elementary processes, namely the chemoselective reduction of an imine moiety of α-iminoketones with thiols as the reductant and the subsequent intermolecular Michael addition of an enolate of α-aminoketones concomitant with lactam formation. This operationally simple method provides β-trifluoromethyl-substituted γ-lactams with a tetrasubstituted carbon as a single diastereomer.
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Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
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21
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Harish B, Yadav S, Suresh S. Design and application of intramolecular vinylogous Michael reaction for the construction of 2-alkenyl indoles. Chem Commun (Camb) 2021; 57:231-234. [PMID: 33300907 DOI: 10.1039/d0cc06564a] [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 base-mediated transformation based on a designed intramolecular vinylogous Michael addition (intra-VMA) is presented to access 3-substituted 2-alkenyl indole derivatives. The reaction represents the first example of the intra-VMA for the construction of indoles. A one-pot N-allylation of ortho-tosylamidocinnamates/congeners with γ-bromocrotonates followed by intra-VMA has been described to provide access to a diverse range of 2-alkenyl indole derivatives in reasonable to high yields. The synthetic value of the developed intra-VMA has been demonstrated by gram-scale synthesis of a representative indole derivative and also by the formal synthesis of MK-7246: a Merck's clinical CRTH2 antagonist.
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Affiliation(s)
- Battu Harish
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
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22
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Zhang Y, Wang D, Tong X. Phosphine-catalysed (4+1) annulations of β′-acetoxy allenoate with β,γ-unsaturated carbonyl compounds. Chem Commun (Camb) 2021; 57:3488-3491. [DOI: 10.1039/d1cc00368b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
While β,γ-unsaturated carbonyl compounds have been widely used as γC- or αC-nucleophiles, their potential αC,αC-bisnucleophilic reactivity is still underdeveloped.
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Affiliation(s)
- Yueqi Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
| | - Danfeng Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
| | - Xiaofeng Tong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- School of Petrochemical Engineering
- Changzhou University
- Changzhou
- China
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23
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Lu WY, Wang Y, You Y, Wang ZH, Zhao JQ, Zhou MQ, Yuan WC. Copper-Catalyzed Decarboxylative [3 + 2] Annulation of Ethynylethylene Carbonates with Azlactones: Access to γ-Butyrolactones Bearing Two Vicinal Quaternary Carbon Centers. J Org Chem 2020; 86:1779-1788. [PMID: 33377785 DOI: 10.1021/acs.joc.0c02621] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient decarboxylative [3 + 2] annulation reaction of ethynylethylene carbonates and azlactones has been developed with a copper salt as catalyst. This practical methodology gives access to a diverse library of γ-butyrolactones bearing α,β-two vicinal quaternary carbon centers in good to high yields with good levels of diastereoselectivities (up to 98% yield, >95:5 dr). Preliminary trials on enantioselective variant with a chiral PyBox ligand provided chiral products in up to 71% ee. This synthetic method features mild reaction conditions, broad functional group tolerance, large-scale synthesis, and versatile products transformation. A plausible catalytic cycle for the protocol is proposed based on previous related studies and our experimental observations.
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Affiliation(s)
- Wen-Ya Lu
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yun Wang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563006, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Ming-Qiang Zhou
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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24
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Zhang XY, You Y, Wang ZH, Zhao JQ, Yuan WC. Organocatalytic asymmetric tandem α-functionalization/1,3-proton shift reaction of benzylidene succinimides with β-trifluoromethyl enones. Chem Commun (Camb) 2020; 56:13449-13452. [PMID: 33043913 DOI: 10.1039/d0cc05474g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A bifunctional thiourea-catalyzed asymmetric tandem α-functionalization/1,3-proton shift reaction of benzylidene succinimides with β-trifluoromethyl enones has been developed. A series of F3C-containing chiral Rauhut-Currier type products were obtained in moderate to high yields (up to 98%) with excellent enantioselectivities (up to >99% ee). This represents the first example of benzylidene succinimides undergoing tandem α-functionalization/1,3-proton shift in catalytic enantioselective transformation.
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Affiliation(s)
- Xia-Yan Zhang
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Scences, Chengdu 610041, China.
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25
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Kang T, Hou L, Ruan S, Cao W, Liu X, Feng X. Lewis acid-catalyzed asymmetric reactions of β,γ-unsaturated 2-acyl imidazoles. Nat Commun 2020; 11:3869. [PMID: 32747706 PMCID: PMC7398931 DOI: 10.1038/s41467-020-17681-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 07/06/2020] [Indexed: 11/09/2022] Open
Abstract
The investigation of diverse reactivity of β,γ-unsaturated carbonyl compounds is of great value in asymmetric catalytic synthesis. Numerous enantioselective transformations have been well developed with β,γ-unsaturated carbonyl compounds as nucleophiles, however, few example were realized by utilizing them as not only nucleophiles but also electrophiles under a same catalytic system. Here we report a regioselective catalytic asymmetric tandem isomerization/α-Michael addition of β,γ-unsaturated 2-acyl imidazoles in the presence of chiral N,N′-dioxide metal complexes, delivering a broad range of optically pure 1,5-dicarbonyl compounds with two vicinal tertiary carbon stereocenters in up to >99% ee under mild conditions. Meanwhile, stereodivergent synthesis is disclosed to yield all four stereoisomers of products. Control experiments suggest an isomerization process involved in the reaction and give an insight into the role of NEt3. In addition, Mannich reaction and sulfur-Michael addition of β,γ-unsaturated 2-acyl imidazoles proceed smoothly as well under the same catalytic system. The investigation of reactivity of β,γ-unsaturated carbonyl compounds is of great synthetic value, especially in asymmetric transformations. Here, the authors report a catalytic asymmetric tandem isomerization/α-Michael addition of β,γ-unsaturated 2-acyl imidazoles in presence of chiral N,N′-dioxide metal catalysts.
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Affiliation(s)
- Tengfei Kang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Liuzhen Hou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Sai Ruan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
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26
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Wang M, Tseng P, Chi W, Suresh S, Edukondalu A, Chen Y, Lin W. Diversity‐Oriented Synthesis of Spirocyclohexene Indane‐1,3‐diones and Coumarin‐Fused Cyclopentanes via an Organobase‐Controlled Cascade Reaction. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000597] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Min Wang
- Department of ChemistryNational Taiwan Normal University, 88, Sec. 4 Tingchow Road Taipei 11677 Taiwan
| | - Ping‐Yao Tseng
- Department of ChemistryNational Taiwan Normal University, 88, Sec. 4 Tingchow Road Taipei 11677 Taiwan
| | - Woei‐Jye Chi
- Department of ChemistryNational Taiwan Normal University, 88, Sec. 4 Tingchow Road Taipei 11677 Taiwan
| | - Sundaram Suresh
- Department of ChemistryNational Taiwan Normal University, 88, Sec. 4 Tingchow Road Taipei 11677 Taiwan
| | - Athukuri Edukondalu
- Department of ChemistryNational Taiwan Normal University, 88, Sec. 4 Tingchow Road Taipei 11677 Taiwan
| | - Yi‐Ru Chen
- Department of ChemistryNational Taiwan Normal University, 88, Sec. 4 Tingchow Road Taipei 11677 Taiwan
| | - Wenwei Lin
- Department of ChemistryNational Taiwan Normal University, 88, Sec. 4 Tingchow Road Taipei 11677 Taiwan
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27
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Yoo WJ, Chen W, Nguyen TVQ, Kobayashi S. One-Pot Synthesis of α,β-Unsaturated γ-Lactones and Lactams via a Sequential trans-Hydroalumination and Catalytic Carboxylation of Propargyl Alcohols and Amines with Carbon Dioxide. Org Lett 2020; 22:2328-2332. [PMID: 32149518 DOI: 10.1021/acs.orglett.0c00513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-pot, sequential process that combines a trans-selective hydroalumination of propargyl alcohols and amines with a copper- or silver-catalyzed carboxylation reaction using carbon dioxide, followed by an acid-mediated intramolecular condensation step, led to the formation of a wide range of α,β-unsaturated γ-butyrolactones and lactams.
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Affiliation(s)
- Woo-Jin Yoo
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Wenlong Chen
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Thanh V Q Nguyen
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shu Kobayashi
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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28
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Curti C, Battistini L, Sartori A, Zanardi F. New Developments of the Principle of Vinylogy as Applied to π-Extended Enolate-Type Donor Systems. Chem Rev 2020; 120:2448-2612. [PMID: 32040305 PMCID: PMC7993750 DOI: 10.1021/acs.chemrev.9b00481] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/19/2022]
Abstract
The principle of vinylogy states that the electronic effects of a functional group in a molecule are possibly transmitted to a distal position through interposed conjugated multiple bonds. As an emblematic case, the nucleophilic character of a π-extended enolate-type chain system may be relayed from the legitimate α-site to the vinylogous γ, ε, ..., ω remote carbon sites along the chain, provided that suitable HOMO-raising strategies are adopted to transform the unsaturated pronucleophilic precursors into the reactive polyenolate species. On the other hand, when "unnatural" carbonyl ipso-sites are activated as nucleophiles (umpolung), vinylogation extends the nucleophilic character to "unnatural" β, δ, ... remote sites. Merging the principle of vinylogy with activation modalities and concepts such as iminium ion/enamine organocatalysis, NHC-organocatalysis, cooperative organo/metal catalysis, bifunctional organocatalysis, dicyanoalkylidene activation, and organocascade reactions represents an impressive step forward for all vinylogous transformations. This review article celebrates this evolutionary progress, by collecting, comparing, and critically describing the achievements made over the nine year period 2010-2018, in the generation of vinylogous enolate-type donor substrates and their use in chemical synthesis.
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Affiliation(s)
| | | | | | - Franca Zanardi
- Dipartimento di Scienze degli
Alimenti e del Farmaco, Università
di Parma, Parco Area delle Scienze 27A, 43124 Parma, Italy
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29
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Ray Choudhury A, Mukherjee S. Deconjugated butenolide: a versatile building block for asymmetric catalysis. Chem Soc Rev 2020; 49:6755-6788. [PMID: 32785345 DOI: 10.1039/c9cs00346k] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Deconjugated butenolides have emerged as a popular synthon for the enantioselective synthesis of γ-lactones. This review provides a comprehensive overview on the catalytic asymmetric reactions of deconjugated butenolides reported till date.
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Affiliation(s)
| | - Santanu Mukherjee
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
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30
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Hu Z, Zhu Y, Fu Z, Huang W. Asymmetric Synthesis of Enantioenriched 6-Hydroxyl Butyrolactams Promoted by N-Heterocyclic Carbene. J Org Chem 2019; 84:10328-10337. [PMID: 31328524 DOI: 10.1021/acs.joc.9b01490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, an efficient route to synthesize 6-hydroxyl butyrolactams has been successfully developed via an N-heterocyclic carbene-catalyzed formal [3 + 2] annulation of bromoenals with α-amino ketones, followed by reduction. Remarkably, enantioenriched epi-neoclausenamide, which is one of the clausenamide derivatives, could be efficiently prepared by this strategy.
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Affiliation(s)
- Zhouli Hu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China
| | - Ying Zhu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China
| | - Zhenqian Fu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China.,Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 , China
| | - Wei Huang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , 30 South Puzhu Road , Nanjing 211816 , China.,Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 , China
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31
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Urruzuno I, Mugica O, Zanella G, Vera S, Gómez‐Bengoa E, Oiarbide M, Palomo C. α‐Branched Ketone Dienolates: Base‐Catalysed Generation and Regio‐ and Enantioselective Addition Reactions. Chemistry 2019; 25:9701-9709. [DOI: 10.1002/chem.201901694] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Iñaki Urruzuno
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Odei Mugica
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Giovanna Zanella
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Silvia Vera
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Enrique Gómez‐Bengoa
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Claudio Palomo
- Departamento de Química Orgánica IUniversidad del País Vasco UPV/EHU Manuel Lardizabal 3 20018 San Sebastián Spain
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32
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Penteado F, Lopes EF, Alves D, Perin G, Jacob RG, Lenardão EJ. α-Keto Acids: Acylating Agents in Organic Synthesis. Chem Rev 2019; 119:7113-7278. [DOI: 10.1021/acs.chemrev.8b00782] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Filipe Penteado
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eric F. Lopes
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
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33
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Sicignano M, Schettini R, Sica L, Pierri G, De Riccardis F, Izzo I, Maity B, Minenkov Y, Cavallo L, Della Sala G. Unprecedented Diastereoselective Arylogous Michael Addition of Unactivated Phthalides. Chemistry 2019; 25:7131-7141. [PMID: 30779872 DOI: 10.1002/chem.201900168] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Indexed: 01/08/2023]
Abstract
The first highly enantioselective arylogous Michael reaction (AMR) of 3-unsubstituted phthalides has been described. This phase-transfer methodology, which uses catalytic amounts of KOH/18-crown-6 catalyst in mesitylene in the presence of N,O-bis(trimethylsilyl)acetamide (BSA), gives access to a broad range of 3-monosubstituted phthalides with high levels of syn diastereoselectivity and good yields, starting from 3-unsubstituted derivatives and diverse α,β-unsaturated carbonyl compounds. The reaction also applies to unactivated 3-alkyl phthalides to afford 3,3-dialkyl derivatives. A plausible mechanism has been suggested. DFT analysis of possible transition states gives a rationale of the high syn diastereoselectivity observed and its correlation with the solvent's dielectric constant.
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Affiliation(s)
- Marina Sicignano
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Rosaria Schettini
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Luisa Sica
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Giovanni Pierri
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Francesco De Riccardis
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Irene Izzo
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
| | - Bholanath Maity
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal, 23955-6900, Saudi Arabia), E-mail
| | - Yury Minenkov
- Moscow Institute of Physics and Technology, MIPT, Institutskiy Pereulok 9, 141700, Dolgoprudny, Moscow Region, Russia
| | - Luigi Cavallo
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal, 23955-6900, Saudi Arabia), E-mail
| | - Giorgio Della Sala
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy
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34
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Harish B, Subbireddy M, Obulesu O, Suresh S. One-Pot Allylation-Intramolecular Vinylogous Michael Addition-Isomerization Cascade of o-Hydroxycinnamates and Congeners: Synthesis of Substituted Benzofuran Derivatives. Org Lett 2019; 21:1823-1827. [PMID: 30835484 DOI: 10.1021/acs.orglett.9b00414] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A unique intramolecular vinylogous Michael addition leading to the synthesis of heterocycles has been disclosed. Base-promoted one-pot sequential O-allylation of o-hydroxy-cinnamates or -cinnamonitrile or -chalcones with γ-bromocrotonates followed by an intramolecular conjugate addition of vinylogous Michael donors resulted in the formation of highly substituted benzofuran derivatives in good to excellent yields. The intramolecular event followed by two [1,3]-H shifts leading to aromatization appears to be the key to the success of this unprecedented transformation.
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Affiliation(s)
- Battu Harish
- Organic Synthesis and Process Chemistry , CSIR-Indian Institute of Chemical Technology (CSIR-IICT) , Hyderabad 500 007 , India.,Academy of Scientific and Innovative Research (AcSIR) , Ghaziabad 201002 , India
| | - Manyam Subbireddy
- Organic Synthesis and Process Chemistry , CSIR-Indian Institute of Chemical Technology (CSIR-IICT) , Hyderabad 500 007 , India
| | - Owk Obulesu
- Organic Synthesis and Process Chemistry , CSIR-Indian Institute of Chemical Technology (CSIR-IICT) , Hyderabad 500 007 , India.,Academy of Scientific and Innovative Research (AcSIR) , Ghaziabad 201002 , India
| | - Surisetti Suresh
- Organic Synthesis and Process Chemistry , CSIR-Indian Institute of Chemical Technology (CSIR-IICT) , Hyderabad 500 007 , India.,Academy of Scientific and Innovative Research (AcSIR) , Ghaziabad 201002 , India
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35
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Skrzyńska A, Frankowski S, Moczulski M, Drelich P, Albrecht Ł. Site-Selective and Enantioselective α,β,γ-Functionalization of 5-Alkylidenefuran-2(5 H)-ones: A Route to Polycyclic γ-Lactones. Org Lett 2019; 21:1248-1252. [PMID: 30746947 DOI: 10.1021/acs.orglett.8b03796] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new strategy for a direct α,β,γ-functionalization of the γ-lactone framework in the corresponding 5-alkylidenefuran-2(5 H)-ones is reported. The developed approach is based on a stereocontrolled cascade reaction with 2-mercaptocarbonyl compounds proceeding in a sequence of thia-Michael/aldol/oxa-Michael reactions. Such a synthetic strategy allows for a construction of a unique polycyclic architecture containing γ-lactone, tetrahydrofuran, and tetrahydrothiophene ring systems. Excellent enantioselectivities and diastereoselectivities have been obtained in the presence of bifunctional catalyst derived from cinchona alkaloids.
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Affiliation(s)
- Anna Skrzyńska
- Institute of Organic Chemistry , Lodz University of Technology , Żeromskiego 116 , 90-924 Łódź , Poland
| | - Sebastian Frankowski
- Institute of Organic Chemistry , Lodz University of Technology , Żeromskiego 116 , 90-924 Łódź , Poland
| | - Marek Moczulski
- Institute of Organic Chemistry , Lodz University of Technology , Żeromskiego 116 , 90-924 Łódź , Poland
| | - Piotr Drelich
- Institute of Organic Chemistry , Lodz University of Technology , Żeromskiego 116 , 90-924 Łódź , Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry , Lodz University of Technology , Żeromskiego 116 , 90-924 Łódź , Poland
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36
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Song T, Arseniyadis S, Cossy J. Asymmetric Synthesis of α-Quaternary γ-Lactams through Palladium-Catalyzed Asymmetric Allylic Alkylation. Org Lett 2019; 21:603-607. [DOI: 10.1021/acs.orglett.8b03613] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Tao Song
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI), ESPCI Paris/CNRS/PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Stellios Arseniyadis
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI), ESPCI Paris/CNRS/PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
- Queen Mary University of London, School of Biological and Chemical Sciences, Mile End Road, London, E1 4NS, U.K
| | - Janine Cossy
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI), ESPCI Paris/CNRS/PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
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38
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Skrzyńska A, Drelich P, Frankowski S, Albrecht Ł. Synthesis of γ,γ-Disubstituted Butenolides through a Doubly Vinylogous Organocatalytic Cycloaddition. Chemistry 2018; 24:16543-16547. [DOI: 10.1002/chem.201804650] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Anna Skrzyńska
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
| | - Piotr Drelich
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
| | - Sebastian Frankowski
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
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39
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Singha Roy SJ, Mukherjee S. Catalytic Enantioselective C–C Bond-Forming Reactions of Deconjugated Butyrolactams: Michael Addition to α,β-Unsaturated Aldehydes and Ketones. J Org Chem 2018; 83:12071-12085. [DOI: 10.1021/acs.joc.8b02051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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40
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Zheng K, Liu X, Feng X. Recent Advances in Metal-Catalyzed Asymmetric 1,4-Conjugate Addition (ACA) of Nonorganometallic Nucleophiles. Chem Rev 2018; 118:7586-7656. [PMID: 30047721 DOI: 10.1021/acs.chemrev.7b00692] [Citation(s) in RCA: 191] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The metal-catalyzed asymmetric conjugate addition (ACA) reaction has emerged as a general and powerful approach for the construction of optically active compounds and is among the most significant and useful reactions in synthetic organic chemistry. In recent years, great progress has been made in this area with the use of various chiral metal complexes based on different chiral ligands. This review provides comprehensive and critical information on the enantioselective 1,4-conjugate addition of nonorganometallic (soft) nucleophiles and their importance in synthetic applications. The literature is covered from the last 10 years, and a number of examples from before 2007 are included as background information. The review is divided into multiple parts according to the type of nucleophile involved in the reaction (such as C-, B-, O-, N-, S-, P-, and Si-centered nucleophiles) and metal catalyst systems used.
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Affiliation(s)
- Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
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41
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Deepake SK, Lanjewar AB, Thatikonda T, Gonnade RG, Das U. Organocatalytic Asymmetric Cascade Reaction of γ-Substituted Deconjugated Butenolides witho-Formyl-β-nitrostyrene. ChemistrySelect 2018. [DOI: 10.1002/slct.201801467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Siddharth K. Deepake
- Division of Organic Chemistry; CSIR - National Chemical Laboratory; Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Atul B. Lanjewar
- Division of Organic Chemistry; CSIR - National Chemical Laboratory; Pune 411008 India
| | - Thanusha Thatikonda
- Division of Organic Chemistry; CSIR - National Chemical Laboratory; Pune 411008 India
| | - Rajesh G. Gonnade
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
- Centre for Materials Characterization; CSIR - National Chemical Laboratory
| | - Utpal Das
- Division of Organic Chemistry; CSIR - National Chemical Laboratory; Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
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42
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Ray B, Mukherjee S. Direct Catalytic Enantioselective Vinylogous Aldol Reaction of Allyl Ketones to Pyrazole-4,5-diones. J Org Chem 2018; 83:10871-10880. [DOI: 10.1021/acs.joc.8b01566] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Bidisha Ray
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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43
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Sharma BM, Shinde DR, Jain R, Begari E, Satbhaiya S, Gonnade RG, Kumar P. Unravelling the Nucleophilicity of Butenolides for 1,6-Conjugate Addition to p-Quinone Methides: A Direct Access to Diversely Substituted Butenolide-Derived Diarylmethanes. Org Lett 2018; 20:2787-2791. [DOI: 10.1021/acs.orglett.8b00745] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Brijesh M. Sharma
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Dinesh R. Shinde
- Central NMR Facility, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Ruchi Jain
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Eeshwaraiah Begari
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Shruti Satbhaiya
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Rajesh G. Gonnade
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Pradeep Kumar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
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44
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Skrzyńska A, Romaniszyn M, Pomikło D, Albrecht Ł. The Application of 2-Benzyl-1,4-naphthoquinones as Pronucleophiles in Aminocatalytic Synthesis of Tricyclic Derivatives. J Org Chem 2018; 83:5019-5026. [DOI: 10.1021/acs.joc.8b00170] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Anna Skrzyńska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Łódź, Poland
| | - Marta Romaniszyn
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Łódź, Poland
| | - Dominika Pomikło
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Łódź, Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Łódź, Poland
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45
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Ghashang M, Janghorban S, Roudbaraki SJ. Synthesis of 3,4,5-substituted furan-2(5H)-ones using Al-doped ZnO nanostructure. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3406-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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46
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Chen H, Lu X, Xia X, Zhu Q, Song Y, Chen J, Cao W, Wu X. Asymmetric Catalytic [4 + 2] Cycloaddition via Cu–Allenylidene Intermediate: Stereoselective Synthesis of Tetrahydroquinolines Fused with a γ-Lactone Moiety. Org Lett 2018. [DOI: 10.1021/acs.orglett.8b00253] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hao Chen
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People’s Republic of China
| | - Xuehe Lu
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People’s Republic of China
| | - Xuejian Xia
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People’s Republic of China
| | - Qiongqiong Zhu
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People’s Republic of China
| | - Yanhong Song
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People’s Republic of China
| | - Jie Chen
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People’s Republic of China
| | - Weiguo Cao
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People’s Republic of China
| | - Xiaoyu Wu
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Sciences, Shanghai University, 99 Shangda Lu, Shanghai 200444, People’s Republic of China
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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47
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Kalaitzakis D, Sofiadis M, Triantafyllakis M, Daskalakis K, Vassilikogiannakis G. Asymmetric and Site-Selective [3 + 2]-Annulations for the Synthesis of High-Value Bicyclic Lactams. Org Lett 2018; 20:1146-1149. [PMID: 29417818 PMCID: PMC5822218 DOI: 10.1021/acs.orglett.8b00076] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
![]()
Asymmetric
and site-selective formal [3 + 2]-annulations of γ-alkyl-β,γ-unsaturated
γ-lactams with α,β-unsaturated aldehydes have been
developed. These organocatalysed transformations yield high value
enantioenriched bicyclic γ-lactams with up to four new stereocenters
(sometimes including a quarternary carbon). The overall transformation
starts from simple and readily accessible furans and oversees a rapid,
controlled, and dramatic enhancement in 3D complexity.
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Affiliation(s)
- Dimitris Kalaitzakis
- Department of Chemistry, University of Crete , Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Manolis Sofiadis
- Department of Chemistry, University of Crete , Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Myron Triantafyllakis
- Department of Chemistry, University of Crete , Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Konstantinos Daskalakis
- Department of Chemistry, University of Crete , Vasilika Vouton, 71003 Iraklion, Crete, Greece
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48
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Simlandy AK, Mukherjee S. Catalytic asymmetric formal γ-allylation of deconjugated butenolides. Org Biomol Chem 2018; 14:5659-64. [PMID: 26646367 DOI: 10.1039/c5ob02362a] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A formal γ-allylation of deconjugated butenolides is reported based on a two-step sequence consisting of a catalytic diastereo- and enantioselective vinylogous nucleophilic addition to vinyl sulfones and Julia-Kocienski olefination. This highly modular approach delivers densely functionalized butenolides containing a quaternary stereogenic centre in excellent yield with high enantioselectivity.
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Affiliation(s)
- Amit K Simlandy
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India.
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India.
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49
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Lima CGS, Monteiro JL, de Melo Lima T, Weber Paixão M, Corrêa AG. Angelica Lactones: From Biomass-Derived Platform Chemicals to Value-Added Products. CHEMSUSCHEM 2018; 11:25-47. [PMID: 28834397 DOI: 10.1002/cssc.201701469] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Indexed: 06/07/2023]
Abstract
The upgrading of biomass-derived compounds has arisen in recent years as a very promising research field in both academia and industry. In this sense, a lot of new processes and products have been developed, often involving levulinic acid as a starting material or intermediate. In the last few years, though, other scaffolds have been receiving growing attention, especially, angelica lactones. Considering these facts and the emergent applications of said molecules, in this review we will discuss their preparation and applications; the use of these frameworks as starting materials in organic synthesis to produce potential bioactive compounds will be covered, as will their use as a foundation to highly regarded compounds such as liquid alkanes with prospective use as fuels and polymers.
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Affiliation(s)
- Carolina G S Lima
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos-UFSCar, Via Washington Luís, km 235-SP-310, São Carlos, São Paulo, 13565-905, Brazil
| | - Julia L Monteiro
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos-UFSCar, Via Washington Luís, km 235-SP-310, São Carlos, São Paulo, 13565-905, Brazil
| | - Thiago de Melo Lima
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos-UFSCar, Via Washington Luís, km 235-SP-310, São Carlos, São Paulo, 13565-905, Brazil
| | - Marcio Weber Paixão
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos-UFSCar, Via Washington Luís, km 235-SP-310, São Carlos, São Paulo, 13565-905, Brazil
| | - Arlene G Corrêa
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos-UFSCar, Via Washington Luís, km 235-SP-310, São Carlos, São Paulo, 13565-905, Brazil
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50
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Affiliation(s)
- Yanli Yin
- College of Bioengineering; Henan University of Technology; Zhengzhou Henan 450001 P.R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Kaifeng Henan 475004 P.R. China
| | - Zhiyong Jiang
- College of Bioengineering; Henan University of Technology; Zhengzhou Henan 450001 P.R. China
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province; Henan University; Kaifeng Henan 475004 P.R. China
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