1
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Huang SH, Chen IT, Han JL. Asymmetric (3 + 3) and (4 + 2) Annulation Reactions of 2,3-Dioxopyrrolidines with 3-Alkylidene Oxindoles to Construct Diverse Chiral Heterocyclic Frameworks. J Org Chem 2024; 89:8970-8984. [PMID: 38850251 PMCID: PMC11197100 DOI: 10.1021/acs.joc.4c00933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 06/10/2024]
Abstract
Two substrate-controlled regiodivergent annulation protocols for 2,3-dioxopyrrolidines with 3-alkylidene oxindoles have been developed, which furnished a series of fused dihydropyrrolidone derivatives in high yields with excellent stereoselectivities. Plausible mechanistic pathways for both annulation reactions are proposed that [3 + 3] annulation reaction involves vinylogous Michael addition followed by intramolecular aldol cyclization, while [4 + 2] annulation reaction occurs through a vinylogous Michael addition and a subsequent intramolecular oxa-Michael cyclization.
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Affiliation(s)
| | | | - Jeng-Liang Han
- Department of Chemistry, National
Chung Hsing University, Taichung
City 40227, Taiwan, R.O.C.
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2
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Jana S, Telu S, Jakobsson JE, Yang BY, Pike VW. Copper(I)-free syntheses of [ 11C/ 18F]trifluoromethyl ketones from alkyl or aryl esters and [ 11C/ 18F]fluoroform. Chem Commun (Camb) 2024; 60:4589-4592. [PMID: 38577766 PMCID: PMC11047764 DOI: 10.1039/d4cc00465e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Herein, we report a copper(I)-free method for labeling the trifluoroacetyl group with positron-emitting carbon-11 (t1/2 = 20.4 min) or fluorine-18 (t1/2 = 109.8 min) as part of our exploration of radiolabeled fluoroforms to access new radiolabeled chemotypes of interest for tracer development. Treatment of alkyl esters and aryl esters, containing electron-donating or electron-withdrawing groups, with [11C/18F]fluoroform in the presence of strong base, gave [11C/18F]trifluoromethyl ketones as novel radiolabeling synthons in moderate to high yields within 15 minutes.
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Affiliation(s)
- Susovan Jana
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
| | - Sanjay Telu
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
| | - Jimmy E Jakobsson
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
| | - Bo Yeun Yang
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
| | - Victor W Pike
- Molecular Imaging Branch, NIMH, National Institutes of Health, 10 Center Dr, Bethesda, Maryland 20892, USA.
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3
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Manna A, Rohilla S, Singh VK. Enantioselective Synthesis of Thiazolopyran Derivatives via a Direct Vinylogous Michael- oxa-Michael Sequence. Org Lett 2024; 26:280-285. [PMID: 38127653 DOI: 10.1021/acs.orglett.3c03971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
An efficient diastereo- and enantioselective direct vinylogous Michael-oxa-Michael sequence between 5-alkenyl thiazolones and isopropylidene oxindoles has been developed. The reaction is catalyzed by a bifunctional squaramide catalyst that allows to access a wide range of densely substituted thiazolopyran derivatives containing a quaternary stereocenter. This protocol is flexible toward different sterically and electronically tuned substrates and is amenable to gram-scale synthesis and several synthetic transformations.
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Affiliation(s)
- Abhijit Manna
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India
| | - Shweta Rohilla
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India
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4
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Manna A, Joshi H, Singh VK. Organocatalytic Asymmetric Direct Vinylogous Michael Initiated Ring Closure Reaction of 4-Nitroisoxazole Derivatives to 3-Isopropylidene Oxindoles. J Org Chem 2023; 88:15937-15946. [PMID: 37885257 DOI: 10.1021/acs.joc.3c02125] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Herein, we present the first ever use of 3-isopropylidene oxindoles as electrophiles in vinylogous Michael initiated ring closure reaction (MIRC). Among the various alkylidene oxindoles used in enantioselective spirocyclization reactions, isopropylidene oxindoles are the least explored to date. The competing reactivity of isopropylidene oxindoles (electrophilicity vs nucleophilicity) in the presence of a chiral organocatalyst is controlled by the logical selection of a more reactive nucleophile. The methodology produces a library of densely substituted highly enantioenriched spirocyclopropyl oxindoles with excellent yield and stereoselectivities. Moreover, the first enantioselective synthesis of HIV-1 NNRT inhibitor indicates the importance of our synthesized spiro-cyclopropyl oxindole core.
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Affiliation(s)
- Abhijit Manna
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India
| | - Harshit Joshi
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208 016, India
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5
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Vinylogous Michael addition of nitroalkylideneoxindoles to isatylidene-malononitriles in the regio- and diastereoselective synthesis of dispirocyclopentylbisoxindoles. J CHEM SCI 2023. [DOI: 10.1007/s12039-022-02122-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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6
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Carceller-Ferrer L, González del Campo A, Vila C, Blay G, Muñoz MC, Pedro JR. Catalytic Diastereo- and Enantioselective Synthesis of Tertiary Trifluoromethyl Carbinols through a Vinylogous Aldol Reaction of Alkylidenepyrazolones with Trifluoromethyl Ketones. J Org Chem 2022; 87:4538-4549. [PMID: 35293756 PMCID: PMC8981347 DOI: 10.1021/acs.joc.1c02817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Indexed: 11/29/2022]
Abstract
A diastereo- and enantioselective organocatalytic aldol reaction between alkylidenepyrazolones and trifluoromethyl ketones leading to chiral tertiary alcohols bearing a trifluoromethyl group is presented. The methodology is based on the use of a bifunctional organocatalyst in order to activate the γ-hydrogen atoms of the alkylidenepyrazolone nucleophile and the carbonyl group of the trifluoromethylarylketone providing highly functionalized trifluoromethyl alcohols with moderate yields, excellent diastereoselectivity, and moderate to good enantioselectivity. Experiments monitoring the conversion by 1H NMR and the enantiomeric excess by HPLC with the reaction time showed that full conversion of the starting materials is not achieved and that the enantiomeric excess decreases upon extended times, probably due to the reversibility of the reaction.
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Affiliation(s)
- Laura Carceller-Ferrer
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Aleix González del Campo
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Carlos Vila
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Gonzalo Blay
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - M. Carmen Muñoz
- Departament
de Física Aplicada, Universitat Politècnica
de València, Camino de Vera s/n, 46022 València, Spain
| | - José R. Pedro
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
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7
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Diastereoselective Formation of Quaternary Stereocenters in Imidazole N-Oxide Cycloaddition with Fluoroalkenes. Catalysts 2022. [DOI: 10.3390/catal12020177] [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
Imidazole N-oxides are attractive starting materials for the preparation of complex molecules containing an imidazole ring. Dipolar cycloaddition between 1,1-difluoroalkenes and imidazole N-oxides bearing a chiral auxiliary performed in the presence of oxygen or nitrogen nucleophiles was found to provide access to esters and amides bearing a 2-azaheteroaryl substituent at the α position of the imidazole ring as mixtures of diastereomers that, in most cases, are readily separable. This three-component reaction introduces a new tertiary or quaternary all-carbon stereocenter into the heterocyclic ring at a position originally occupied by hydrogen. Importantly, products containing a trifluoromethyl group attached to this stereocenter are readily available as well.
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8
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Xu JX, Jiang YS, Chen CH, Sathishkumar N, Chu KT, Chiang MH, Chen HT, Han JL. Enantioselective Organocatalytic Three-Component Vinylogous Michael/Aldol Tandem Reaction among 3-Alkylidene oxindoles, Methyleneindolinones, and Aldehydes. J Org Chem 2021; 87:197-210. [PMID: 34882415 DOI: 10.1021/acs.joc.1c02180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We reported a one-pot enantioselective three-component vinylogous Michael/aldol tandem reaction of prochiral 3-alkylidene oxindoles with methyleneindolinones and aldehydes using bifunctional organocatalysts. A variety of enantioenriched 3,3-disubstituted oxindoles 3 and spirolactones 4 were generated in moderate yields (up to 78%) with high stereoselectivities (up to >20:1 dr, >99% ee). Intriguingly, we observed that the aldol reaction with paraformaldehyde generates 3,3-disubstituted oxindoles 3 bearing a hydroxymethyl group, while the reaction with aliphatic aldehydes generates spirolactones 4.
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Affiliation(s)
- Jing-Xiang Xu
- Department of Chemistry, National Chung Hsing University, Taichung City 40227, Taiwan R.O.C
| | - Yi-Syun Jiang
- Department of Chemistry, National Chung Hsing University, Taichung City 40227, Taiwan R.O.C
| | - Chih-Hao Chen
- Department of Chemistry, Chung Yuan Christian University, Taoyuan City 32023, Taiwan R.O.C
| | - Nadaraj Sathishkumar
- Department of Chemistry, Chung Yuan Christian University, Taoyuan City 32023, Taiwan R.O.C
| | - Kai-Ti Chu
- Institute of Chemistry, Academia Sinica, Taipei City 11529, Taiwan R.O.C
| | - Ming-Hsi Chiang
- Institute of Chemistry, Academia Sinica, Taipei City 11529, Taiwan R.O.C
| | - Hsin-Tsung Chen
- Department of Chemistry, Chung Yuan Christian University, Taoyuan City 32023, Taiwan R.O.C
| | - Jeng-Liang Han
- Department of Chemistry, National Chung Hsing University, Taichung City 40227, Taiwan R.O.C
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9
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Nagaraju S, Sathish K, Kashinath D. Applications of 3,5‐Dialkyl‐4‐nitroisoxazoles and Their Derivatives in Organic Synthesis
#. ChemistrySelect 2021. [DOI: 10.1002/slct.202101719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sakkani Nagaraju
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Kota Sathish
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Dhurke Kashinath
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
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10
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Tsou YJ, Guan RY, Han JL. Enantioselective organocatalytic vinylogous aldol-cyclization cascade reaction of 3-alkylidene oxindoles with o-quinones. Org Biomol Chem 2021; 19:5836-5843. [PMID: 34115083 DOI: 10.1039/d1ob00888a] [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
Spirocyclic o-quinone analogues show a broad spectrum of applications as biologically active compounds. We herein report the chiral bifunctional squaramide catalysed asymmetric vinylogous aldol-cyclization cascade reaction between 3-alkylidene oxindoles and o-quinones. A wide range of enantioenriched spirocyclic o-quinone analogues with a quaternary stereocenter could be smoothly synthesized in good to excellent yields (up to 99%) with high enantioselectivities (up to 99%).
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Affiliation(s)
- Yun-Jie Tsou
- Department of Chemistry, National Chung Hsing University, Taichung City, 40227, Taiwan, Republic of China.
| | - Ren-You Guan
- Department of Chemistry, National Chung Hsing University, Taichung City, 40227, Taiwan, Republic of China.
| | - Jeng-Liang Han
- Department of Chemistry, National Chung Hsing University, Taichung City, 40227, Taiwan, Republic of China.
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11
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Maria Faisca Phillips A, Pombeiro AJL. Recent Developments in Enantioselective Organocatalytic Cascade Reactions for the Construction of Halogenated Ring Systems. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100364] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ana Maria Faisca Phillips
- Centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
- Рeoples' Friendship University of Russia RUDN University) 6 Miklukho-Maklaya Street Moscow 117198 Russian Federation
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12
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Wittmann S, Martzel T, Pham Truong CT, Toffano M, Oudeyer S, Guillot R, Bournaud C, Gandon V, Brière J, Vo‐Thanh G. Alkylidene Meldrum's Acids as Platforms for the Vinylogous Synthesis of Dihydropyranones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Stéphane Wittmann
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Thomas Martzel
- Normandie Univ UNIROUEN INSA Rouen CNRS COBRA 76000 Rouen France
| | - Cong Thanh Pham Truong
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Martial Toffano
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Sylvain Oudeyer
- Normandie Univ UNIROUEN INSA Rouen CNRS COBRA 76000 Rouen France
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Chloée Bournaud
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
- Laboratoire de Chimie Moléculaire (LCM) CNRS UMR 9168 Ecole Polytechnique, Institut Polytechnique de Paris route de Saclay 91128 Palaiseau cedex France
| | | | - Giang Vo‐Thanh
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
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13
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Wittmann S, Martzel T, Pham Truong CT, Toffano M, Oudeyer S, Guillot R, Bournaud C, Gandon V, Brière J, Vo‐Thanh G. Alkylidene Meldrum's Acids as Platforms for the Vinylogous Synthesis of Dihydropyranones. Angew Chem Int Ed Engl 2021; 60:11110-11114. [DOI: 10.1002/anie.202014489] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Indexed: 02/02/2023]
Affiliation(s)
- Stéphane Wittmann
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Thomas Martzel
- Normandie Univ UNIROUEN INSA Rouen CNRS COBRA 76000 Rouen France
| | - Cong Thanh Pham Truong
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Martial Toffano
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Sylvain Oudeyer
- Normandie Univ UNIROUEN INSA Rouen CNRS COBRA 76000 Rouen France
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Chloée Bournaud
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
- Laboratoire de Chimie Moléculaire (LCM) CNRS UMR 9168 Ecole Polytechnique, Institut Polytechnique de Paris route de Saclay 91128 Palaiseau cedex France
| | | | - Giang Vo‐Thanh
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris Saclay 91405 Orsay Cedex France
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14
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Hashimoto M, Hashinoki M, Kurokawa N, Murai Y, Puteri Tachrim Z, Sakihama Y, Suzuki T. Synthesis of (Trifluoromethyldiazirinyl)phenylboronic Acid Derivatives for Photoaffinity Labeling. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Varenikov A, Shapiro E, Gandelman M. Synthesis of Chiral α-CF 3-Substituted Benzhydryls via Cross-Coupling Reaction of Aryltitanates. Org Lett 2020; 22:9386-9391. [PMID: 33210926 DOI: 10.1021/acs.orglett.0c03673] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We describe a highly efficient approach toward α-CF3-substituted benzhydryls thanks to the employment of organotitanium(IV) based nucleophiles. The use of commercially available anesthetic halothane as a cheap fluorinated building block in a sequential one-pot nickel-catalyzed enantioselective cross-coupling reaction of aryl titanates allowed for the synthesis of chiral α-CF3-substituted benzhydryls in good yields and excellent enantioselectivities. Alternatively, α-CF3-benzyl bromides could be employed under similar conditions to obtain the same family of compounds in higher yields and excellent selectivities. A benzhydryl moiety is a common motif in many biologically active compounds, and their enantioenriched fluorinated analogs should be of great interest in the search for novel drugs and agrochemicals.
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Affiliation(s)
- Andrii Varenikov
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Evgeny Shapiro
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Mark Gandelman
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Technion City, Haifa 3200008, Israel
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16
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Fu JH, Zhang ZG, Zhou XY, Fu CW, Sha F, Wu XY. Enantioselective vinylogous aldol/lactonization cascade reaction between β,γ-unsaturated amides and trifluoromethyl ketones: facile access to chiral trifluoromethyl dihydropyranones. Org Biomol Chem 2020; 18:7848-7851. [PMID: 33001115 DOI: 10.1039/d0ob01746a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient asymmetric vinylogous aldol/lactonization cascade reaction between β,γ-unsaturated amides and trifluoromethyl ketones has been developed. Using a chiral cyclohexanediamine-based tertiary amine-thiourea catalyst, optically active trifluoromethyl dihydropyranones have been constructed in moderate-to-excellent yields (up to 99%) with excellent stereoselectivities (96-> 99.5% ee).
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Affiliation(s)
- Jun-Hao Fu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
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17
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Yao Z, Liu X, Li Z, Xu S, Xu L, Liu X. Dienolate‐Mediated, Regioselective C2‐Polarity Reversal of Chromone‐Based Reactants and Their Application in Nucleophilic Strategies. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000942] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhen Yao
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Xiong‐Wei Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine Guizhou University Guiyang 550025 People's Republic of China
| | - Zheng Li
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine Guizhou University Guiyang 550025 People's Republic of China
| | - Sheng‐Wen Xu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine Guizhou University Guiyang 550025 People's Republic of China
| | - Lijin Xu
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Xiong‐Li Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine Guizhou University Guiyang 550025 People's Republic of China
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18
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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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19
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Yang H, Wang Q, Luo Y, Ye L, Li X, Chen F, Zhao Z, Li X. Enantioselective synthesis of trifluoromethyl substituted cyclohexanones via an organocatalytic cascade Michael/aldol reaction. Org Biomol Chem 2020; 18:1607-1611. [PMID: 32030393 DOI: 10.1039/d0ob00004c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An enantioselective (92-99% ee) Michael/aldol cascade reaction between 4,4,4-trifluoroacetoacetates and α,β-unsaturated enones was established in the presence of cinchona alkaloid-based primary amines. Various β-CF3-cyclohexanones were constructed in high yields (81-99%) as a couple of separable diastereomers. This tandem reaction was sensitive to acidic co-catalysts, with a Michael/aldol condensation process favorably occurring to generate β-CF3-cyclohexenones (42-69% yield, 84-96% ee) in the presence of trifluoroacetic acid.
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Affiliation(s)
- Hongzhou Yang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Qingqing Wang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Yuan Luo
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xinying Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Feng Chen
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Zhigang Zhao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
| | - Xuefeng Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China.
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20
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Joshi H, Yadav A, Das A, Singh VK. Organocatalytic Asymmetric Hetero-Diels–Alder Reaction of in Situ Generated Dienes: Access to α,β-Unsaturated δ-Lactones Featuring CF3-Substituted Quaternary Stereocenter. J Org Chem 2020; 85:3202-3212. [DOI: 10.1021/acs.joc.9b03076] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Harshit Joshi
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Ankit Yadav
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Arko Das
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Vinod K. Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
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21
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Ren JW, Zheng L, Ye ZP, Deng ZX, Xie ZZ, Xiao JA, Zhu FW, Xiang HY, Chen XQ, Yang H. Organocatalytic, Enantioselective, Polarity-Matched Ring-Reorganization Domino Sequence Based on the 3-Oxindole Scaffold. Org Lett 2019; 21:2166-2170. [PMID: 30908056 DOI: 10.1021/acs.orglett.9b00477] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-pot squaramide-catalyzed enantioselective ring-reorganization domino sequence (Michael addition/intramolecular ring-opening/lactamization) of 3-hydroxyoxindole and methyleneindolinone, which can be readily derived from 3-oxindole, has been established in this work. As a result, novel polycyclic quinolinone-spirooxindoles bearing three contiguous chiral centers were efficiently and step-economically assembled under mild conditions in high yields (up to 97%) with excellent enantioselectivities (up to >99% ee) and moderate to good diastereoselectivities (up to >95:5 dr).
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Affiliation(s)
- Ji-Wei Ren
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
| | - Lan Zheng
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
| | - Zhi-Peng Ye
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
| | - Zhi-Xiong Deng
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
| | - Zhen-Zhen Xie
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
| | - Jun-An Xiao
- College of Chemistry and Materials Science , Nanning Normal University , Nanning , Guangxi 530001 , P. R. China
| | - Fa-Wei Zhu
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering , Central South University , Changsha , Hunan 410083 , P. R. China
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22
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Yang ZT, Zhao J, Yang WL, Deng WP. Enantioselective Construction of CF3-Containing Spirooxindole γ-Lactones via Organocatalytic Asymmetric Michael/Lactonization. Org Lett 2019; 21:1015-1020. [DOI: 10.1021/acs.orglett.8b04039] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhong-Tao Yang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jianhong Zhao
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wu-Lin Yang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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23
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Crotti S, Belletti G, Di Iorio N, Marotta E, Mazzanti A, Righi P, Bencivenni G. Asymmetric vinylogous aldol addition of alkylidene oxindoles on trifluoromethyl-α,β-unsaturated ketones. RSC Adv 2018; 8:33451-33458. [PMID: 35548158 PMCID: PMC9086480 DOI: 10.1039/c8ra06615a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 09/18/2018] [Indexed: 12/21/2022] Open
Abstract
A novel vinylogous aldol addition of alkylidene oxindole with 1-trifluoromethyl-3-alkylidene-propan-2-ones is presented. The reaction, catalyzed by a bifunctional tertiary amine, provides an efficient application of the vinylogous reactivity of oxindoles for the preparation of enantioenriched trifluoromethylated allylic alcohols.
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Affiliation(s)
- Simone Crotti
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum-University of Bologna Viale del Risorgimento 4 40136-Bologna Italy
| | - Giada Belletti
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum-University of Bologna Viale del Risorgimento 4 40136-Bologna Italy
| | - Nicola Di Iorio
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum-University of Bologna Viale del Risorgimento 4 40136-Bologna Italy
| | - Emanuela Marotta
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum-University of Bologna Viale del Risorgimento 4 40136-Bologna Italy
| | - Andrea Mazzanti
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum-University of Bologna Viale del Risorgimento 4 40136-Bologna Italy
| | - Paolo Righi
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum-University of Bologna Viale del Risorgimento 4 40136-Bologna Italy
| | - Giorgio Bencivenni
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum-University of Bologna Viale del Risorgimento 4 40136-Bologna Italy
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