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Maestro A, Nagy BS, Ötvös SB, Kappe CO. A Telescoped Continuous Flow Enantioselective Process for Accessing Intermediates of 1-Aryl-1,3-diols as Chiral Building Blocks. J Org Chem 2023; 88:15523-15529. [PMID: 37844195 PMCID: PMC10629223 DOI: 10.1021/acs.joc.3c02040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
A telescoped continuous flow process is reported for the enantioselective synthesis of chiral precursors of 1-aryl-1,3-diols, intermediates in the synthesis of ezetimibe, dapoxetine, duloxetine, and atomoxetine. The two-step sequence consists of an asymmetric allylboration of readily available aldehydes using a polymer-supported chiral phosphoric acid catalyst to introduce asymmetry, followed by selective epoxidation of the resulting alkene. The process is highly stable for at least 7 h and represents a transition-metal free enantioselective approach to valuable 1-aryl-1,3-diols.
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Affiliation(s)
- Aitor Maestro
- Department of Organic Chemistry I, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
| | - Bence S Nagy
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
| | - Sándor B Ötvös
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), A-8010 Graz, Austria
| | - C Oliver Kappe
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), A-8010 Graz, Austria
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2
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Hayashi Y, Tomikawa M, Mori N. Diarylprolinol with Trifluoromethyl Substituents and Diphenylprolinol‐Derived Perfluoroalkanesulfonamide as Organocatalysts in the Cross‐Aldol Reaction of Aldehydes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200266] [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)
- Yujiro Hayashi
- Department of Chemistry, Graduate School of Science Tohoku University 6-3 Aramaki-Aza Aoba Aoba-ku Sendai 980-8578 Japan
| | - Masashi Tomikawa
- Department of Chemistry, Graduate School of Science Tohoku University 6-3 Aramaki-Aza Aoba Aoba-ku Sendai 980-8578 Japan
| | - Naoki Mori
- Department of Chemistry, Graduate School of Science Tohoku University 6-3 Aramaki-Aza Aoba Aoba-ku Sendai 980-8578 Japan
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3
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Chen W, Fang H, Xie K, Oestreich M. The Cyclohexa-2,5-dienyl Group as a Placeholder for Hydrogen: Organocatalytic Michael Addition of an Acetaldehyde Surrogate. Chemistry 2020; 26:15126-15129. [PMID: 32808731 PMCID: PMC7756304 DOI: 10.1002/chem.202003764] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Indexed: 01/09/2023]
Abstract
An aldehyde with a cyclohexa-2,5-dienyl group in the α-position is introduced as a storable surrogate of highly reactive acetaldehyde. The cyclohexa-2,5-dienyl unit is compatible with an enantioselective Michael addition to nitroalkenes promoted by a Hayashi-Jørgensen catalyst and can be removed by a boron Lewis acid mediated C-C bond cleavage. The robust two-step sequence does not require a large excess of the aldehyde component that is typically needed when directly using acetaldehyde.
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Affiliation(s)
- Weiqiang Chen
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Huaquan Fang
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Kaixue Xie
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623, Berlin, Germany
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4
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Alarcón‐Matus E, Alvarado C, Romero‐Ceronio N, Ramos‐Rivera EM, Lobato‐García CE. Proline‐derived Long‐aliphatic‐chain Amphiphilic Organocatalysts (PDLACAOs) for Asymmetric Reactions in Aqueous Media. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000419] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Erika Alarcón‐Matus
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| | - Cuauhtémoc Alvarado
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| | - Nancy Romero‐Ceronio
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| | - Erika M. Ramos‐Rivera
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| | - Carlos E. Lobato‐García
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
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5
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Sánchez-Antonio O, Juaristi E. Synthesis of a new chiral organocatalyst derived from (S)-proline containing a 1,2,4-triazolyl moiety and its application in the asymmetric aldol reaction. Importance of one molecule of water generated in situ. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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6
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Meninno S, Volpe C, Lattanzi A. Diaryl Prolinols in Stereoselective Catalysis and Synthesis: An Update. ChemCatChem 2019. [DOI: 10.1002/cctc.201900569] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sara Meninno
- Dipartimento di Chimica e BiologiaUniversity of Salerno Via Giovanni Paolo II 84084 Fisciano Italy
| | - Chiara Volpe
- Dipartimento di Chimica e BiologiaUniversity of Salerno Via Giovanni Paolo II 84084 Fisciano Italy
| | - Alessandra Lattanzi
- Dipartimento di Chimica e BiologiaUniversity of Salerno Via Giovanni Paolo II 84084 Fisciano Italy
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7
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Wang S, Rodríguez-Escrich C, Fan X, Pericàs MA. A site isolation-enabled organocatalytic approach to enantiopure γ-amino alcohol drugs. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Nakano H, Alade Owolabi I, Chennapuram M, Okuyama Y, Kwon E, Seki C, Tokiwa M, Takeshita M. β-Amino Alcohol Organocatalysts for Asymmetric Additions. HETEROCYCLES 2018. [DOI: 10.3987/rev-18-sr(t)3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Yamashita Y, Yasukawa T, Yoo WJ, Kitanosono T, Kobayashi S. Catalytic enantioselective aldol reactions. Chem Soc Rev 2018; 47:4388-4480. [DOI: 10.1039/c7cs00824d] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent developments in catalytic asymmetric aldol reactions have been summarized.
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Affiliation(s)
- Yasuhiro Yamashita
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Tomohiro Yasukawa
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Woo-Jin Yoo
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Taku Kitanosono
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Shū Kobayashi
- Department of Chemistry
- School of Science
- The University of Tokyo
- Bunkyo-ku
- Japan
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10
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Obregón-Zúñiga A, Juaristi E. (2S,4R)-Hyp-(S)-Phe-OMe dipeptide supported on imidazolium tagged molecules as recoverable organocatalysts for asymmetric aldol reactions using water as reaction medium. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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11
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Subba Reddy UV, Chennapuram M, Seki K, Seki C, Anusha B, Kwon E, Okuyama Y, Uwai K, Tokiwa M, Takeshita M, Nakano H. A Diamino Alcohol Catalyzed Enantioselective Crossed Aldol Reaction of Acetaldehyde with Isatins - A Concise Total Synthesis of Antitumor Agents. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700399] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ummareddy Venkata Subba Reddy
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Madhu Chennapuram
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Kento Seki
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Bheemreddy Anusha
- Department of Chemistry; KVR Degree College (Women); -518001 Kurnool Andhra Pradesh India
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Michio Tokiwa
- Tokiwakai Group; 62 Numajiri Tsuduri-chou, Uchigo 973-8053 Iwaki Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
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12
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13
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Kour P, Kumar A, Rai VK. Aqueous microwave-assisted DMAP catalyzed synthesis of β-phosphonomalonates and 2-amino-4H-chromen-4-ylphosphonates via a domino Knoevenagel-phospha-Michael reaction. CR CHIM 2017. [DOI: 10.1016/j.crci.2016.05.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Wani IA, Sayyad M, Ghorai MK. Domino ring-opening cyclization (DROC) of activated aziridines and epoxides with nitrones via dual-catalysis “on water”. Chem Commun (Camb) 2017; 53:4386-4389. [DOI: 10.1039/c7cc01033h] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and green approach for the synthesis of non-racemic 1,2,4-oxadiazinanes and 1,4,2-dioxazinanes with excellent yields (up to 99%) and stereoselectivity (de/ee > 99%) in water has been described.
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Affiliation(s)
| | | | - Manas K. Ghorai
- Department of Chemistry
- Indian Institute of Technology
- Kanpur 208016
- India
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15
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Chakrabarty K, Basak A, Ghosh A, Das GK. Ionic liquid supported acid additive stabilizes the transition structure of organocatalytic asymmetric direct aldol reaction by proton donation: A quantum mechanical study. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2016. [DOI: 10.1142/s0219633616500498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
ONIOM studies were performed on the transition structure (TS) of organocatalytic direct aldol reaction by using ionic liquid supported benzoic acid (ILS-PhCO2H) as an additive. Results obtained from this computation suggest direct involvement of ILS-PhCO2H in the TS as a proton donor. It has also come out from the present study that, the counter ion of the ILS-acid additive may also play significant role to maintain the proper TS geometry by holding the organocatalyst and the acid additive close together during the course of reaction.
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Affiliation(s)
- Kuheli Chakrabarty
- Department of Chemistry, Visva-Bharati Santiniketan-731235, West Bengal, India
| | - Atanu Basak
- Department of Chemistry, Visva-Bharati Santiniketan-731235, West Bengal, India
| | - Animesh Ghosh
- Department of Chemistry, Visva-Bharati Santiniketan-731235, West Bengal, India
| | - Gourab Kanti Das
- Department of Chemistry, Visva-Bharati Santiniketan-731235, West Bengal, India
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16
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Sun M, Campbell J, Kang G, Wang H, Ni B. Imidazolium ion tethered TsDPENs as efficient ligands for Iridium catalyzed asymmetric transfer hydrogenation of α-keto phosphonates in water. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.03.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Kim SM, Kim YS, Kim DW, Rios R, Yang JW. Acetaldehyde: A Small Organic Molecule with Big Impact on Organocatalytic Reactions. Chemistry 2015; 22:2214-34. [PMID: 26667963 DOI: 10.1002/chem.201503960] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Indexed: 11/11/2022]
Abstract
Stereocontrolled formation of carbon-carbon and carbon-heteroatom bonds through asymmetric organocatalysis is a formidable challenge for modern synthetic chemistry. Among the most significant contributions to this field are the transformations involving the use of acetaldehyde or α-heteroatom-substituted acetaldehydes for constructing valuable synthons (e.g., amino acid derivatives and hydroxycarbonyl). In this Minireview, versatile (enantioselective) organocatalytic transformations are discussed.
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Affiliation(s)
- Sun Min Kim
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, Korea
| | - Young Sug Kim
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, Korea
| | - Dong Wan Kim
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, Korea
| | - Ramon Rios
- Faculty of Natural and Environmental Science, University of Southampton, Highfield Campus, Southampton, SO17 1BJ, UK.
| | - Jung Woon Yang
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 440-746, Korea.
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18
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Hayashi Y, Sakamoto D, Okamura D. One-Pot Synthesis of (S)-Baclofen via Aldol Condensation of Acetaldehyde with Diphenylprolinol Silyl Ether Mediated Asymmetric Michael Reaction as a Key Step. Org Lett 2015; 18:4-7. [DOI: 10.1021/acs.orglett.5b02839] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Daisuke Sakamoto
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Daichi Okamura
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba-ku, Sendai, Miyagi 980-8578, Japan
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19
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Water: the most versatile and nature’s friendly media in asymmetric organocatalyzed direct aldol reactions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.09.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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20
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Funabiki K, Furuno Y, Yano Y, Sakaida Y, Kubota Y, Matsui M. A Direct, Concise, and Enantioselective Synthesis of 2-Substituted 4,4,4-Trifluorobutane-1,3-diols Based on the Organocatalytic In Situ Generation of Unstable Trifluoroacetaldehyde. Chem Asian J 2015. [PMID: 26206587 DOI: 10.1002/asia.201500607] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A direct, concise, and enantioselective synthesis of 2-substituted 4,4,4-trifluorobutane-1,3-diols based on the organocatalytic asymmetric direct aldol reaction of an ethyl hemiacetal of trifluoroacetaldehyde with various aldehydes was examined. A catalytic amount (30 mol %) of commercially available and inexpensive l-prolinamide is quite effective as an organocatalyst for the catalytic in situ generation of gaseous and unstable trifluoroacetaldehyde from its hemiacetal, and a successive asymmetric direct aldol reaction with various aldehydes in dichloromethane at 0 °C, followed by reduction with sodium borohydride, gives 2-substituted 4,4,4-trifluorobutane-1,3-diols in moderate to good yields (31-84%) with low diastereoselectivities and good to excellent enantioselectivities (64-97% ee).
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Affiliation(s)
- Kazumasa Funabiki
- Department of Chemistry and Biomolecular Science, Gifu University, 1-1 Yanagido, Gifu, Japan.
| | - Yudai Furuno
- Department of Chemistry and Biomolecular Science, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Yosuke Yano
- Department of Chemistry and Biomolecular Science, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Yuta Sakaida
- Department of Chemistry and Biomolecular Science, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Yasuhiro Kubota
- Department of Chemistry and Biomolecular Science, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Masaki Matsui
- Department of Chemistry and Biomolecular Science, Gifu University, 1-1 Yanagido, Gifu, Japan
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21
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Bayat S, Salleh AB, Malek EA, Yousefi S, Rahman MBA. Design of a Simple Organocatalysts for Asymmetric Direct Aldol Reactions in Aqueous Medium. Catal Letters 2015. [DOI: 10.1007/s10562-015-1583-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Gut B, Mlynarski J. Tertiary Amine Promoted Asymmetric Aldol Reaction of Aldehydes. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500519] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Chakrabarty K, Ghosh A, Basak A, Das GK. Stabilization of the transition structures of organocatalytic asymmetric direct aldol reaction in wet solvent free condition by the formation of water assisted supramolecular network: A DFT study. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Kumar M, Kumar A, Rizvi MA, Shah BA. Acetaldehyde in asymmetric organocatalytic transformations. RSC Adv 2015. [DOI: 10.1039/c5ra05695k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review summarize both the recent developments in the organocatalysed use of acetaldehyde as a substrate in various organic transformations and its application in the synthesis of bioactive molecules.
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Affiliation(s)
- Manjeet Kumar
- Academy of Scientific and Innovative Research
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- Jammu-Tawi
- India
| | - Arvind Kumar
- Academy of Scientific and Innovative Research
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- Jammu-Tawi
- India
| | | | - Bhahwal Ali Shah
- Academy of Scientific and Innovative Research
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- Jammu-Tawi
- India
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25
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Kang G, Lin S, Shiwakoti A, Ni B. Imidazolium ion tethered TsDPENs as efficient water-soluble ligands for rhodium catalyzed asymmetric transfer hydrogenation of aromatic ketones. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2014.08.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Fan X, Rodríguez-Escrich C, Wang S, Sayalero S, Pericàs MA. Highly enantioselective cross-aldol reactions of acetaldehyde mediated by a dual catalytic system operating under site isolation. Chemistry 2014; 20:13089-93. [PMID: 25168085 DOI: 10.1002/chem.201404215] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 11/07/2022]
Abstract
Polystyrene-supported (PS) diarylprolinol catalysts 1 a (Ar = phenyl) and 1 b (Ar = 3,5-bis(trifluoromethyl)phenyl) have been developed. Operating under site-isolation conditions, PS-1 a/1 b worked compatibly with PS-bound sulfonic acid catalyst 2 to promote deoligomerization of paraldehyde and subsequent cross-aldol reactions of the resulting acetaldehyde in one pot, affording aldol products in high yields with excellent enantioselectivities. The effect of water on the performance of the catalytic system has been studied and its optimal amount (0.5 equiv) has been determined. The dual catalytic system (1/2) allows repeated recycling and reuse (10 cycles). The potential of this methodology is demonstrated by a two-step synthesis of a phenoperidine analogue (68% overall yield; 98% ee) and by the preparation of highly enantioenriched 1,3-diols 4 and 3-methylamino-1-arylpropanols 5, key intermediates in the synthesis of a variety of druglike structures.
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Affiliation(s)
- Xinyuan Fan
- Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007, Tarragona (Spain), Fax: (+34) 977-920-243
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27
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Müller CR, Meiners I, Domínguez de María P. Highly enantioselective tandem enzyme–organocatalyst crossed aldol reactions with acetaldehyde in deep-eutectic-solvents. RSC Adv 2014. [DOI: 10.1039/c4ra09307k] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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28
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Liu ZQ, Xiang ZW, Shen Z, Wu Q, Lin XF. Enzymatic enantioselective aldol reactions of isatin derivatives with cyclic ketones under solvent-free conditions. Biochimie 2014; 101:156-60. [DOI: 10.1016/j.biochi.2014.01.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 01/07/2014] [Indexed: 10/25/2022]
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Highly efficient asymmetric organocatalytic Michael addition of α,α-disubstituted aldehydes to nitroolefins under solvent-free conditions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.107] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Moles FJN, Guillena G, Nájera C. Aqueous organocatalyzed aldol reaction of glyoxylic acid for the enantioselective synthesis of α-hydroxy-γ-keto acids. RSC Adv 2014. [DOI: 10.1039/c3ra46800c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Bhowmick S, Kunte SS, Bhowmick KC. The smallest organocatalyst in highly enantioselective direct aldol reaction in wet solvent-free conditions. RSC Adv 2014. [DOI: 10.1039/c4ra02690j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The catalytic efficacy of the smallest organocatalyst, l-proline hydrazide, prepared from a cheaply available natural amino acid, such as l-proline, was studied for the direct asymmetric aldol reaction of various ketones with aromatic aldehydes at room temperature in the presence of several acid additives.
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Affiliation(s)
- Sudipto Bhowmick
- Division of Organic Synthesis
- Department of Chemistry
- Visva-Bharati University
- Bolpur, India
| | - Sunita S. Kunte
- Division of Organic Chemistry
- Analytical Section
- National Chemical Laboratory
- Pune-411 008, India
| | - Kartick C. Bhowmick
- Division of Organic Synthesis
- Department of Chemistry
- Visva-Bharati University
- Bolpur, India
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Yang H, Zhang X, Li S, Wang X, Ma J. The high catalytic activity and reusability of the proline functionalized cage-like mesoporous material SBA-16 for the asymmetric aldol reaction proceeding in methanol–water mixed solvent. RSC Adv 2014. [DOI: 10.1039/c3ra47262k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Kitanosono T, Ollevier T, Kobayashi S. Iron- and bismuth-catalyzed asymmetric Mukaiyama aldol reactions in aqueous media. Chem Asian J 2013; 8:3051-62. [PMID: 24101589 DOI: 10.1002/asia.201301149] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Indexed: 11/10/2022]
Abstract
We have developed asymmetric Mukaiyama aldol reactions of silicon enolates with aldehydes catalyzed by chiral Fe(II) and Bi(III) complexes. Although previous reactions often required relatively harsh conditions, such as strictly anhydrous conditions, very low temperatures (-78 °C), etc., the reactions reported herein proceeded in the presence of water at 0 °C. To find appropriate chiral water-compatible Lewis acids for the Mukaiyama aldol reaction, many Lewis acids were screened in combination with chiral bipyridine L1, which had previously been found to be a suitable chiral ligand in aqueous media. Three types of chiral catalysts that consisted of a Fe(II) or Bi(III) metal salt, a chiral ligand (L1), and an additive have been discovered and a wide variety of substrates (silicon enolates and aldehydes) reacted to afford the desired aldol products in high yields with high diastereo- and enantioselectivities through an appropriate selection of one of the three catalytic systems. Mechanistic studies elucidated the coordination environments around the Fe(II) and Bi(III) centers and the effect of additives on the chiral catalysis. Notably, both Brønsted acids and bases worked as efficient additives in the Fe(II) -catalyzed reactions. The assumed catalytic cycle and transition states indicated important roles of water in these efficient asymmetric Mukaiyama aldol reactions in aqueous media with the broadly applicable and versatile catalytic systems.
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Affiliation(s)
- Taku Kitanosono
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan), Fax: (+81) 3-5684-0634
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Scheffler U, Mahrwald R. Recent Advances in Organocatalytic Methods for Asymmetric CC Bond Formation. Chemistry 2013; 19:14346-96. [DOI: 10.1002/chem.201301996] [Citation(s) in RCA: 178] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Hayashi Y, Kojima M, Yasui Y, Kanda Y, Mukaiyama T, Shomura H, Nakamura D, Ritmaleni, Sato I. Diarylprolinol in an Asymmetric, Direct Cross-Aldol Reaction with Alkynyl Aldehydes. ChemCatChem 2013. [DOI: 10.1002/cctc.201300390] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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