1
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Sohtome Y, Sodeoka M. Theoretical Insights into the Substrate-Dependent Diastereodivergence in (3 + 2) Cycloaddition of α-Keto Ester Enolates with Nitrones. Chem Pharm Bull (Tokyo) 2022; 70:616-623. [DOI: 10.1248/cpb.c22-00041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yoshihiro Sohtome
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research
| | - Mikiko Sodeoka
- Catalysis and Integrated Research Group, RIKEN Center for Sustainable Resource Science
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2
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Zhao F, Ai HJ, Wu XF. Copper-Catalyzed Substrate-Controlled Carbonylative Synthesis of α-Keto Amides and Amides from Alkyl Halides. Angew Chem Int Ed Engl 2022; 61:e202200062. [PMID: 35175679 DOI: 10.1002/anie.202200062] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Indexed: 12/15/2022]
Abstract
Controllable production of α-keto amides and amides from the same substrates is an attractive goal in the field of transition-metal-catalyzed (double-)carbonylation. Herein, a novel copper-catalyzed highly selective double carbonylation of alkyl bromides has been developed. Moderate to good yields of α-keto amides were obtained as the only products. In the case of alkyl iodides, double- and mono-carbonylation can be achieved controllably under different conditions.
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Affiliation(s)
- Fengqian Zhao
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Han-Jun Ai
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, Liaoning, China
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3
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Singh S, Sureshbabu P, Sabiah S, Kandasamy J. Synthesis of N‐Aryl α–Ketoamides, α–Ketoesters, α–Ketothioesters and Their Applications in Quinoxalinone Preparation. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200122] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shweta Singh
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | - Popuri Sureshbabu
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | | | - Jeyakumar Kandasamy
- Indian Institute of Technology (BHU) Chemistry Varanasi 221005 Varanasi INDIA
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4
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Mondal S, Aher RD, Bethi V, Lin YJ, Taniguchi T, Monde K, Tanaka F. Control of Reactions of Pyruvates by Catalysts: Direct Enantioselective Mannich Reactions of Pyruvates Catalyzed by Amine-based Catalyst Systems. Org Lett 2022; 24:1853-1858. [DOI: 10.1021/acs.orglett.2c00436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Santanu Mondal
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Ravindra D. Aher
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Venkati Bethi
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Yu-Ju Lin
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Tohru Taniguchi
- Faculty of Advanced Life Science, Hokkaido University, Kita 21 Nishi 11, Sapporo 001-0021, Japan
| | - Kenji Monde
- Faculty of Advanced Life Science, Hokkaido University, Kita 21 Nishi 11, Sapporo 001-0021, Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
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5
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Zhao F, Ai H, Wu X. Copper‐Catalyzed Substrate‐Controlled Carbonylative Synthesis of α‐Keto Amides and Amides from Alkyl Halides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200062] [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)
- Fengqian Zhao
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Han‐Jun Ai
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Xiao‐Feng Wu
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 116023 Dalian Liaoning China
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6
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Zhang X, Li X, Sivaguru P, Wu J, Zanoni G, Song JN, Ning Y. Difluorodiazoethane as a masked acetylene equivalent in formal [3 + 2] cycloadditions with ketones to access 2,3-functionalized furans. Org Chem Front 2022. [DOI: 10.1039/d2qo01045c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A transition-metal-free [3+2] cycloaddition of CF2HCHN2 with β-ketones is reported, which enables the synthesis of 2,3-functionalized furans. Sequential defluorination, nucleophilic addition, and cyclization are key elemental steps of the reaction.
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Affiliation(s)
- Xiaolong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xin Li
- School of Life Science, Jilin University, Changchun 130012, China
| | - Paramasivam Sivaguru
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jiayi Wu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Giuseppe Zanoni
- Department of Chemistry, University of Pavia, Viale Taramelli 12, Pavia 27100, Italy
| | - Jin-Na Song
- School of Life Science, Jilin University, Changchun 130012, China
| | - Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
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7
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Zhu Y, Liu T, Liu B, Shi H, Tan Q, Xu B. From α-keto acids to nitrile oxides enabled by copper nitrate: a facile access to fused isoxazolines. Org Chem Front 2022. [DOI: 10.1039/d1qo01574e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented generation of nitrile oxides was developed from α-keto acids and copper nitrate through a novel carbon–carbon bond cleavage mode, affording pharmacologically interesting fused isoxazolines via 1,3-dipolar cycloadditions.
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Affiliation(s)
- Yuping Zhu
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Tianqi Liu
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Bingxin Liu
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Houguang Shi
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Qitao Tan
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Bin Xu
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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8
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Singh S, Popuri S, Junaid QM, Sabiah S, Kandasamy J. Diversification of α-ketoamides via transamidation reactions with alkyl and benzyl amines at room temperature. Org Biomol Chem 2021; 19:7134-7140. [PMID: 34355726 DOI: 10.1039/d1ob01021b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A wide range of N-tosyl α-ketoamides underwent transamidation with various alkyl amines in the absence of a catalyst, base, or additive. On the other hand, transamidation in N-Boc α-ketoamides was achieved in the presence of Cs2CO3. The reactions proceeded at room temperature and provided good to excellent yields of transamidation products under the optimized conditions. Broad substrate scope, functional group tolerance and quick conversions are the important features of the developed methodology.
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Affiliation(s)
- Shweta Singh
- Department of chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005, India.
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9
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Hashikawa Y, Li J, Okamoto S, Murata Y. Reactions on a 1,2-Dicarbonyl Moiety of a Fullerene Skeleton. Chemistry 2021; 27:7235-7238. [PMID: 33836109 DOI: 10.1002/chem.202100640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Indexed: 11/07/2022]
Abstract
A 1,2-dicarbonyl moiety on a cage-opened fullerene skeleton is one of suitable building blocks for the further derivatization. Herein, we discuss the chemical transformation of a 1,2-dicarbonyl compound into β-oxo-phosphorus ylide, acid anhydride, and α-methylene carbonyl derivatives. Despite possessing a sterically small methylene unit in the last one, the release of an encapsulated water molecule was significantly supressed whereas the β-oxo-phosphorus ylide bearing three bulky p-tolyl groups on the P-atom enabled the faster insertion/release dynamics, implying the flexibility of the phosphonium substituent. The replacement of the carbonyl group with phosphorus ylide and methylene units largely varied electrochemical properties of the fullerene skeleton, likely arising from the anionic charge delocalized over the entire molecule and removal of an electron-withdrawable carbonyl group, respectively.
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Affiliation(s)
- Yoshifumi Hashikawa
- Institute for Chemical Research, Kyoto University, 611-0011, Uji, Kyoto, Japan
| | - Jiayue Li
- Institute for Chemical Research, Kyoto University, 611-0011, Uji, Kyoto, Japan
| | - Shu Okamoto
- Institute for Chemical Research, Kyoto University, 611-0011, Uji, Kyoto, Japan
| | - Yasujiro Murata
- Institute for Chemical Research, Kyoto University, 611-0011, Uji, Kyoto, Japan
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10
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Mo Y, Zhang X, Yao Y, Duan C, Ye L, Shi Z, Zhao Z, Li X. Construction of Chiral Isotetronic Acid-Fused Thiochromane via Doubly Annulative Strategy. J Org Chem 2021; 86:4448-4456. [PMID: 33651601 DOI: 10.1021/acs.joc.0c02878] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A sulfa-Michael/aldol/lactonization cascade reaction has been established to construct isotetronic acid-fused thiochromanes in a highly stereoselective fashion (≥11:1 dr, 35-98% ee). The tricyclic products were obtained in 35-99% isolated yields in the presence of a bifunctional squaramide. Three reactive sites of β,γ-unsaturated α-ketoester, including the less-explored ester carbonyl group, were sequentially utilized to construct two fused heterocycles in a one-pot operation.
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Affiliation(s)
- Yiran Mo
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Xuehuan Zhang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Yongqi Yao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu 610041, China
| | - Cong Duan
- 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
| | - Zhichuan Shi
- 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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11
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Pasternak‐Suder M, Pacułt W, Baś S, Mlynarski J. Asymmetric Aldol Reaction of Pyruvate Promoted by Chiral Tertiary Amines. ChemistrySelect 2020. [DOI: 10.1002/slct.202001450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Wojciech Pacułt
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
| | - Sebastian Baś
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
| | - Jacek Mlynarski
- Institute of Organic Chemistry Polish Academy of Science Kasprzaka 44/52 01-224 Warsaw Poland
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12
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Fofana M, Dudognon Y, Bertrand L, Constantieux T, Rodriguez J, Ndiaye I, Bonne D, Bugaut X. Enantioselective Organocatalyzed Michael Additions of Nitroalkanes to 4-Arylidenedihydrofuran-2,3-diones and 4-Arylidenepyrrolidine-2,3-diones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000460] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mouhamadou Fofana
- Centrale Marseille, ISM2; Aix Marseille Univ, CNRS; Marseille France
- Département de Chimie; Faculté des Sciences et Techniques; Université Cheikh Anta Diop; Dakar Sénégal
| | - Yohan Dudognon
- Centrale Marseille, ISM2; Aix Marseille Univ, CNRS; Marseille France
| | - Laura Bertrand
- Centrale Marseille, ISM2; Aix Marseille Univ, CNRS; Marseille France
| | | | - Jean Rodriguez
- Centrale Marseille, ISM2; Aix Marseille Univ, CNRS; Marseille France
| | - Ibrahima Ndiaye
- Département de Chimie; Faculté des Sciences et Techniques; Université Cheikh Anta Diop; Dakar Sénégal
| | - Damien Bonne
- Centrale Marseille, ISM2; Aix Marseille Univ, CNRS; Marseille France
| | - Xavier Bugaut
- Centrale Marseille, ISM2; Aix Marseille Univ, CNRS; Marseille France
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13
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Chen L, Yang W, Shen J, Deng W. Nickel(II)‐Catalyzed Diastereo‐ and Enantioselective Michael/ Hemiacetalization Cascade Reaction of α‐Ketoesters with 2‐(2‐Nitrovinyl)phenols. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900753] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Long Chen
- Shanghai Key Laboratory of New Drug Design and School of PharmacyEast China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China E-mail: weiping
| | - Wu‐Lin Yang
- Shanghai Key Laboratory of New Drug Design and School of PharmacyEast China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China E-mail: weiping
| | - Jia‐Huan Shen
- Shanghai Key Laboratory of New Drug Design and School of PharmacyEast China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China E-mail: weiping
| | - Wei‐Ping Deng
- Shanghai Key Laboratory of New Drug Design and School of PharmacyEast China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China E-mail: weiping
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14
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Nandwana N, Patel OPS, Srivathsa MR, Kumar A. Dual Role of Glyoxal in Metal-Free Dicarbonylation Reaction: Synthesis of Symmetrical and Unsymmetrical Dicarbonyl Imidazoheterocycles. ACS OMEGA 2019; 4:10140-10150. [PMID: 31460106 PMCID: PMC6648449 DOI: 10.1021/acsomega.9b00716] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/22/2019] [Indexed: 05/28/2023]
Abstract
A practical and efficient method has been developed for the dicarbonylation of imidazoheterocycles using glyoxals as dicarbonyl precursors under metal-free conditions in acetic acid. A series of symmetrical and unsymmetrical dicarbonyl imidazoheterocycles was synthesized in good yields. Aryl and alkyl glyoxals also demonstrated excellent reactivity under similar reaction conditions and delivered corresponding dicarbonyl imidazoheterocycles in high yields. It is believed that the glyoxal plays a dual role both as a dicarbonyl source and as an oxidant in this transformation. A probable mechanistic pathway has been proposed based on control experiments and electrospray ionization high-resolution mass spectrometry analysis.
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15
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Chen P, Wang K, Zhang B, Guo W, Liu Y, Li C. Water enables an asymmetric cross reaction of α-keto acids with α-keto esters for the synthesis of quaternary isotetronic acids. Chem Commun (Camb) 2019; 55:12813-12816. [DOI: 10.1039/c9cc06356k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A water promoted asymmetric aldol/lactonization/enolization cascade reaction of α-keto acids and α-keto esters affords chiral quaternary isotetronic acids with excellent enantioselectivity.
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Affiliation(s)
- Ping Chen
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Kai Wang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Boyu Zhang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Wengang Guo
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Yan Liu
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Can Li
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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16
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Ferretti F, Ribeiro APC, Alegria ECBA, Ferraria AM, Kopylovich MN, Guedes da Silva MFC, Marchetti F, Pombeiro AJL. Synergistic catalytic action of vanadia–titania composites towards the microwave-assisted benzoin oxidation. Dalton Trans 2019; 48:3198-3203. [DOI: 10.1039/c8dt04274h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Application of synergistic effects is among the main ways to boost chemical efficiency.
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Affiliation(s)
- Francesco Ferretti
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
| | - Ana P. C. Ribeiro
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
| | | | - Ana M. Ferraria
- CQFM-Centro de Química-Física Molecular and IN and IBB-Institute for Bioengineering and Biosciences
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
- Universidade de Lisboa
| | - Maximilian N. Kopylovich
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
| | | | - Fabio Marchetti
- School of Science and Technology
- Chemistry Section
- University of Camerino
- 62032 Camerino
- Italy
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
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17
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Bhajammanavar V, Mallik S, Baidya M. Oxidative cross-dehydrogenative [2 + 3] annulation of α-amino ketones with α-keto esters: concise synthesis of clausenamide analogues. Org Biomol Chem 2019; 17:1740-1743. [DOI: 10.1039/c8ob02369g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A one-pot oxidative cross-dehydrogenative [2 + 3] annulation of α-amino ketones with α-keto esters at room temperature is reported.
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Affiliation(s)
- Vinod Bhajammanavar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600036
- India
| | - Sumitava Mallik
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600036
- India
| | - Mahiuddin Baidya
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600036
- India
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18
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Duan C, Yao Y, Ye L, Shi Z, Zhao Z, Li X. Highly stereoselective construction of tetrahydroquinolines via cascade aza-Michael-Michael reaction: Formal [4+2] cycloaddition of β,γ-unsaturated α-ketoesters with 2-aminochalcones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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Echave H, Bastida I, López R, Palomo C. Bifunctional Brønsted Base Catalyzed Mannich Reaction of β‐Alkoxy α‐Keto Amides: Stereocontrolled Entry to Functionalized Amino Diols. Chemistry 2018; 24:11554-11558. [DOI: 10.1002/chem.201802550] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/18/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Haizea Echave
- Departamento de Química Orgánica I, Facultad de QuímicaUniversidad del País Vasco Manuel de Lardizabal 3 20018 San Sebastián Spain
| | - Iñaki Bastida
- Departamento de Química Orgánica I, Facultad de QuímicaUniversidad del País Vasco Manuel de Lardizabal 3 20018 San Sebastián Spain
| | - Rosa López
- Departamento de Química Orgánica I, Facultad de QuímicaUniversidad del País Vasco Manuel de Lardizabal 3 20018 San Sebastián Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Facultad de QuímicaUniversidad del País Vasco Manuel de Lardizabal 3 20018 San Sebastián Spain
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20
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Ortiz-Rojano L, Martínez-Mingo M, García-García C, Ribagorda M, Carreño MC. Domino Reaction of Naphthoquinone and β-Arylpyruvic Acids: Synthesis of 3-(Naphthoquinonyl)naphthofuran-2(3H
)-ones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701656] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Laura Ortiz-Rojano
- Departamento de Química Orgánica (Módulo-01); Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente n° 7 2804 9-Madrid Cantoblanco Spain
| | - Mario Martínez-Mingo
- Departamento de Química Orgánica (Módulo-01); Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente n° 7 2804 9-Madrid Cantoblanco Spain
| | - Carolina García-García
- Departamento de Química Orgánica (Módulo-01); Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente n° 7 2804 9-Madrid Cantoblanco Spain
| | - María Ribagorda
- Departamento de Química Orgánica (Módulo-01); Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente n° 7 2804 9-Madrid Cantoblanco Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049- Madrid Spain
| | - M. Carmen Carreño
- Departamento de Química Orgánica (Módulo-01); Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente n° 7 2804 9-Madrid Cantoblanco Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049- Madrid Spain
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21
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Muthukumar A, Sangeetha S, Sekar G. Recent developments in functionalization of acyclic α-keto amides. Org Biomol Chem 2018; 16:7068-7083. [DOI: 10.1039/c8ob01423j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes the synthetic utility of α-keto amides to synthesize various important molecules via mono, dual and triple functionalization reactions.
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Affiliation(s)
- Alagesan Muthukumar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Subramani Sangeetha
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Govindasamy Sekar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
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22
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Curti C, Battistini L, Sartori A, Rassu G, Pelosi G, Lombardo M, Zanardi F. (E
)-3-(Alkoxycarbonyl-2-Alkyliden)-2-Oxindoles: Multidentate Pronucleophiles for the Organocatalytic, Vinylogous Michael Addition to Nitroolefins. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701164] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Claudio Curti
- Dipartimento di Scienze degli Alimenti e del Farmaco; Università di Parma; Parco Area delle Scienze 27 A 43124 Parma Italy
| | - Lucia Battistini
- Dipartimento di Scienze degli Alimenti e del Farmaco; Università di Parma; Parco Area delle Scienze 27 A 43124 Parma Italy
| | - Andrea Sartori
- Dipartimento di Scienze degli Alimenti e del Farmaco; Università di Parma; Parco Area delle Scienze 27 A 43124 Parma Italy
| | - Gloria Rassu
- Istituto di Chimica Biomolecolare del CNR; Traversa La Crucca 3 07100 Li Punti, Sassari Italy
| | - Giorgio Pelosi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale; Parco Area delle Scienze 17 A 43124 Parma Italy
| | - Marco Lombardo
- Dipartimento di Chimica “G. Ciamician”; Università degli Studi di Bologna; Via Selmi 2 40126 Bologna Italy
| | - Franca Zanardi
- Dipartimento di Scienze degli Alimenti e del Farmaco; Università di Parma; Parco Area delle Scienze 27 A 43124 Parma Italy
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23
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Affiliation(s)
- Wengang Guo
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Xianghui Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yan Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Can Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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24
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Alves Esteves CH, Hall CJJ, Smith PD, Donohoe TJ. Pyruvate Enolate Arylation and Alkylation: OBO Ester Protected Pyruvates as Useful Reagents in Organic Synthesis. Org Lett 2017; 19:5248-5251. [DOI: 10.1021/acs.orglett.7b02524] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- C. Henrique Alves Esteves
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Christopher J. J. Hall
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Peter D. Smith
- AstraZeneca, Pharmaceutical Sciences, Silk Road Business Park, Macclesfield SK10 2NA, U.K
| | - Timothy J. Donohoe
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K
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25
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Bartlett SL, Sohtome Y, Hashizume D, White PS, Sawamura M, Johnson JS, Sodeoka M. Catalytic Enantioselective [3 + 2] Cycloaddition of α-Keto Ester Enolates and Nitrile Oxides. J Am Chem Soc 2017; 139:8661-8666. [PMID: 28581747 DOI: 10.1021/jacs.7b03782] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An enantioselective [3 + 2] cycloaddition reaction between nitrile oxides and transiently generated enolates of α-keto esters has been developed. The catalyst system was found to be compatible with in situ nitrile oxide-generation conditions. A versatile array of nitrile oxides and α-keto esters could participate in the cycloaddition, providing novel 5-hydroxy-2-isoxazolines in high chemical yield with high levels of diastereo- and enantioselectivity. Notably, the optimal reaction conditions circumvented concurrent reactions via O-imidoylation and hetero-[3 + 2] pathways.
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Affiliation(s)
- Samuel L Bartlett
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | | | | | - Peter S White
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | | | - Jeffrey S Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
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26
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Abstract
A catalyst system derived from commercially available Pd2(dba)3 and PtBu3 has been applied to the coupling of α-keto ester enolates and aryl bromides. The reaction provides access to an array of β-stereogenic α-keto esters. When the air-stable ligand precursor PtBu3·HBF4 is employed, the reaction can be carried out without use of a glovebox. The derived products are of broad interest given the prevalence of the α-keto acid substructure in biologically important molecules.
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Affiliation(s)
- Blane P Zavesky
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | - Samuel L Bartlett
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | - Jeffrey S Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
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27
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Badiola E, Olaizola I, Vázquez A, Vera S, Mielgo A, Palomo C. β 2, 2 -Amino Acid N-Carboxyanhydrides Relying on Sequential Enantioselective C(4)-Functionalization of Pyrrolidin-2,3-diones and Regioselective Baeyer-Villiger Oxidation. Chemistry 2017; 23:8185-8195. [PMID: 28245062 DOI: 10.1002/chem.201700464] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Indexed: 12/12/2022]
Abstract
A catalytic enantioselective entry to β2, 2 -amino acids enabling their direct coupling with nucleophiles is described. The approach is based upon an effective bifunctional Brønsted base catalyzed construction of a quaternary carbon stereocenter at C4 position of pyrrolidin-2,3-diones. Subsequent regioselective Baeyer-Villiger oxidation of the resultant adducts gives β2, 2 -amino acid N-carboxyanhydrides as the reactive species, which can further react with nucleophiles. Following this strategy both, β2, 2 -amino acid derivatives with different functionalities at the newly created stereocenter, and spirocyclic structures can be efficiently prepared.
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Affiliation(s)
- Eider Badiola
- Departamento de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal, 3, 20018, Donostia-San Sebastián, Spain
| | - Iurre Olaizola
- Departamento de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal, 3, 20018, Donostia-San Sebastián, Spain
| | - Ana Vázquez
- Departamento de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal, 3, 20018, Donostia-San Sebastián, Spain
| | - Silvia Vera
- Departamento de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal, 3, 20018, Donostia-San Sebastián, Spain
| | - Antonia Mielgo
- Departamento de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal, 3, 20018, Donostia-San Sebastián, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal, 3, 20018, Donostia-San Sebastián, Spain
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28
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Sohtome Y, Nakamura G, Muranaka A, Hashizume D, Lectard S, Tsuchimoto T, Uchiyama M, Sodeoka M. Naked d-orbital in a centrochiral Ni(II) complex as a catalyst for asymmetric [3+2] cycloaddition. Nat Commun 2017; 8:14875. [PMID: 28383035 PMCID: PMC5384211 DOI: 10.1038/ncomms14875] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 02/09/2017] [Indexed: 11/21/2022] Open
Abstract
Chiral metal catalysts have been widely applied to asymmetric transformations. However, the electronic structure of the catalyst and how it contributes to the activation of the substrate is seldom investigated. Here, we report an empirical approach for providing insights into the catalytic activation process in the distorted Ni(II)-catalysed asymmetric [3+2] cycloaddition of α-ketoesters. We quantitatively characterize the bonding nature of the catalyst by means of electron density distribution analysis, showing that the distortion around the Ni(II) centre makes the dz2 orbital partially ‘naked', wherein the labile acetate ligand is coordinated with electrostatic interaction. The electron-deficient dz2 orbital and the acetate act together to deprotonate the α-ketoester, generating the (Λ)-Ni(II)–enolate. The solid and solution state analyses, together with theoretical calculations, strongly link the electronic structure of the centrochiral octahedral Ni(II) complex and its catalytic activity, depicting a cooperative mechanism of enolate binding and outer sphere hydrogen-bonding activation. Understanding the interplay between electronic structure and performance and how it relates to mechanism is important for catalysis. Here the authors report an asymmetric [3+2] cycloaddition and show the Ni(II) catalyst possesses a weakly bound acetate ligand, leaving the dz2 orbital partially vacant.
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Affiliation(s)
- Yoshihiro Sohtome
- Synthetic Organic Chemistry Laboratory, RIKEN, Wako, Saitama, 351-0198, Japan.,RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
| | - Genta Nakamura
- Synthetic Organic Chemistry Laboratory, RIKEN, Wako, Saitama, 351-0198, Japan.,Department of Applied Chemistry, School of Science and Technology, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Atsuya Muranaka
- RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan.,Elements Chemistry Laboratory, RIKEN, Wako, Saitama, 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science, Wako, Saitama, 351-0198, Japan
| | - Sylvain Lectard
- Synthetic Organic Chemistry Laboratory, RIKEN, Wako, Saitama, 351-0198, Japan
| | - Teruhisa Tsuchimoto
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Masanobu Uchiyama
- RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan.,Elements Chemistry Laboratory, RIKEN, Wako, Saitama, 351-0198, Japan
| | - Mikiko Sodeoka
- Synthetic Organic Chemistry Laboratory, RIKEN, Wako, Saitama, 351-0198, Japan.,RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
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29
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Molenda MA, Baś S, Mlynarski J. A Concise Organocatalytic Synthesis of 3-Deoxy-2-ulosonic Acids throughCinchona-Alkaloid-Promoted Aldol Reactions of Pyruvate. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600784] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Marta A. Molenda
- Faculty of Chemistry; Jagiellonian University; Ingardena 3 30-060 Krakow Poland
| | - Sebastian Baś
- Faculty of Chemistry; Jagiellonian University; Ingardena 3 30-060 Krakow Poland
| | - Jacek Mlynarski
- Faculty of Chemistry; Jagiellonian University; Ingardena 3 30-060 Krakow Poland
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 Warsaw Poland
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30
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De Risi C, Pollini GP, Zanirato V. Recent Developments in General Methodologies for the Synthesis of α-Ketoamides. Chem Rev 2016; 116:3241-305. [DOI: 10.1021/acs.chemrev.5b00443] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Carmela De Risi
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Gian Piero Pollini
- Istituto Universitario
di Studi Superiori “IUSS−Ferrara 1391”, Via delle Scienze 41/b, 44121 Ferrara, Italy
| | - Vinicio Zanirato
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
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31
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Echave H, López R, Palomo C. Bifunctional Brønsted Base Catalyzes Direct Asymmetric Aldol Reaction of α-Keto Amides. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510482] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Haizea Echave
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
| | - Rosa López
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
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32
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Echave H, López R, Palomo C. Bifunctional Brønsted Base Catalyzes Direct Asymmetric Aldol Reaction of α-Keto Amides. Angew Chem Int Ed Engl 2016; 55:3364-8. [DOI: 10.1002/anie.201510482] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 01/08/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Haizea Echave
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
| | - Rosa López
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Facultad de Químicas; Universidad del País Vasco; Apdo. 1072 20080 San Sebastián Spain
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33
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Hou X, Ma H, Zhang Z, Xie L, Qin Z, Fu B. An efficient approach for the construction of trifluoromethylated all-carbon quaternary stereocenters: enantioselective Ni(ii)-catalyzed Michael addition of 2-acetyl azaarene to β,β-disubstituted nitroalkenes. Chem Commun (Camb) 2016; 52:1470-3. [DOI: 10.1039/c5cc08480f] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Michael addition of 2-acetyl azaarenes with β,β-disubstituted nitroalkenes afforded chiral compounds in good yields and with excellent enantioselectivities.
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Affiliation(s)
- Xuhe Hou
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- People’'s Republic of China
| | - Hongli Ma
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- People’'s Republic of China
| | - Zhenhua Zhang
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- People’'s Republic of China
| | - Lei Xie
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- People’'s Republic of China
| | - Zhaohai Qin
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- People’'s Republic of China
| | - Bin Fu
- Department of Applied Chemistry
- China Agricultural University
- Beijing 100193
- People’'s Republic of China
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34
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Molenda MA, Baś S, El-Sepelgy O, Stefaniak M, Mlynarski J. Chemistry of Pyruvate Enolates:anti-Selective Direct Aldol Reactions of Pyruvate Ester with Sugar Aldehydes Promoted by a Dinuclear Zinc Catalyst. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Diastereo- and enantioselective conjugate addition of α-keto esters to nitroalkenes: Complete switch in the enantioselectivity by tuning the metal center or rigidity of the ligand. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(14)60199-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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King SM, Herzon SB. Substrate-modified functional group reactivity: hasubanan and acutumine alkaloid syntheses. J Org Chem 2014; 79:8937-47. [PMID: 25135456 DOI: 10.1021/jo501516x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Functional group taxonomy provides a powerful conceptual framework to classify and predict the chemical reactivity of molecular structures. These principals are most effective in monofunctional settings, wherein individual functional groups can be analyzed without complications. In more complex settings, the predictive value of these analyses decreases as alternative reaction pathways, promoted by neighboring substituents and aggregate molecular properties, emerge. We refer to this phenomenon as substrate-modified functional group reactivity. In this Perspective, we explain how substrate-modified functional group reactivity molded our synthetic routes to the hasubanan and acutumine alkaloids. These investigations underscore the potential for discovery and insight that can only be gained by studying the reactivity of complex multifunctional structures.
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Affiliation(s)
- Sandra M King
- Department of Chemistry, Yale University , New Haven, Connecticut 06520, United States
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37
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Du H, Rodriguez J, Bugaut X, Constantieux T. Organocatalytic enantio- and diastereoselective conjugate addition to nitroolefins: when β-ketoamides surpass β-ketoesters. Chemistry 2014; 20:8458-66. [PMID: 24895115 DOI: 10.1002/chem.201402192] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Indexed: 12/28/2022]
Abstract
Our findings on the bifunctional squaramide-catalyzed enantioselective conjugate addition of β-ketoamides to nitroolefins are disclosed. It appears that simple acyclic methylene β-ketoamides, unlike the extensively studied β-ketoesters, afford the products in excellent diastereoselectivities, and maintain high yields and enantioselectivities. Moreover, competition and kinetic studies were conducted to rationalize the observed reactivity and selectivity. The high level of diastereocontrol, along with the amenability of the amide group to postfunctionalization, dramatically increase the synthetic usefulness of the transformation.
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Affiliation(s)
- Haiying Du
- Aix Marseille Université, Centrale Marseille, CNRS iSm2 UMR 7313, 13397, Marseille (France), Fax: (+33) 491-289-187
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38
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Kudyakova YS, Bazhin DN, Goryaeva MV, Burgart YV, Saloutin VI. The use of 2-(1-alkoxyalkylidene)-1,3-dicarbonyl compounds in organic synthesis. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n02abeh004388] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Liautard V, Jardel D, Davies C, Berlande M, Buffeteau T, Cavagnat D, Robert F, Vincent JM, Landais Y. Organocatalyzed Aldol Reaction between Pyridine-2-carbaldehydes and α-Ketoacids: A Straightforward Route towards Indolizidines and Isotetronic Acids. Chemistry 2013; 19:14532-9. [DOI: 10.1002/chem.201302264] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Indexed: 11/08/2022]
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40
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Simpson AJ, Lam HW. Enantioselective Nickel-Catalyzed Michael Additions of 2-Acetylazaarenes to Nitroalkenes. Org Lett 2013; 15:2586-9. [DOI: 10.1021/ol400578c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Alain J. Simpson
- EaStCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, United Kingdom
| | - Hon Wai Lam
- EaStCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, United Kingdom
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41
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Lefranc A, Guénée L, Alexakis A. Highly Diastereo- and Enantioselective Organocatalytic Domino Michael/Aldol Reaction of Acyclic 3-Halogeno-1,2-Diones to α,β-Unsaturated Aldehydes. Org Lett 2013; 15:2172-5. [DOI: 10.1021/ol400697n] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Alice Lefranc
- Department of Organic Chemistry, University of Geneva, quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland, and Laboratory of Crystallography, University of Geneva, quai Ernest Ansermet 24, CH-1211 Geneva 4, Switzerland
| | - Laure Guénée
- Department of Organic Chemistry, University of Geneva, quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland, and Laboratory of Crystallography, University of Geneva, quai Ernest Ansermet 24, CH-1211 Geneva 4, Switzerland
| | - Alexandre Alexakis
- Department of Organic Chemistry, University of Geneva, quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland, and Laboratory of Crystallography, University of Geneva, quai Ernest Ansermet 24, CH-1211 Geneva 4, Switzerland
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42
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Bonne D, Constantieux T, Coquerel Y, Rodriguez J. Stereoselective Multiple Bond-Forming Transformations (MBFTs): The Power of 1,2- and 1,3-Dicarbonyl Compounds. Chemistry 2013; 19:2218-31. [DOI: 10.1002/chem.201204018] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Indexed: 12/23/2022]
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43
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Raimondi W, Dauzonne D, Constantieux T, Bonne D, Rodriguez J. Expeditious, Metal-Free, Domino, Regioselective Synthesis of Highly Substituted 2-Carbonyl- and 2-Phosphorylfurans by Formal [3+2] Cycloaddition. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201192] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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