1
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Hikawa R, Shimogaki M, Kano T. Construction of three contiguous stereocenters through amine-catalyzed asymmetric aldol reactions. Chem Commun (Camb) 2023. [PMID: 37334826 DOI: 10.1039/d3cc01606d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Three contiguous stereocenters were constructed by an amino acid-catalyzed asymmetric aldol reaction of α-siloxyketones with racemizable α-haloaldehydes via dynamic kinetic resolution. One-pot catalytic asymmetric synthesis of the highly functionalized products could also be accomplished by the α-bromination of simple aldehydes and the subsequent asymmetric aldol reaction.
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Affiliation(s)
- Ryoga Hikawa
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
| | - Mio Shimogaki
- Graduate School of Science, University of Hyogo, Hyogo 678-1297, Japan
| | - Taichi Kano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
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2
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Nugent TC, Vos AE, Hussain I, El Damrany Hussein HA, Goswami F. A 2000 to 2020 Practitioner's Guide to Chiral Amine‐Based Enantioselective Aldol Reactions: Ketone Substrates, Best Methods, in Water Reaction Environments, and Defining Nuances. European J Org Chem 2022. [DOI: 10.1002/ejoc.202100529] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Thomas C. Nugent
- Department of Life Sciences and Chemistry Jacobs University Bremen 28759 Bremen Germany
| | - Alice E. Vos
- Department of Life Sciences and Chemistry Jacobs University Bremen 28759 Bremen Germany
| | - Ishtiaq Hussain
- Department of Pharmacy Abbottabad University of Science and Technology Havelian Abbottabad 22010 Pakistan
| | | | - Falguni Goswami
- Department of Life Sciences and Chemistry Jacobs University Bremen 28759 Bremen Germany
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3
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Thiyagarajan R, Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. New small γ-turn type N-primary amino terminal tripeptide organocatalyst for solvent-free asymmetric aldol reaction of various ketones with aldehydes. RSC Adv 2021; 11:38925-38932. [PMID: 35493209 PMCID: PMC9044195 DOI: 10.1039/d1ra08635a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 01/18/2023] Open
Abstract
New small γ-turn type N-primary amino terminal tripeptides were synthesized and their functionality as an organocatalyst was examined in the asymmetric aldol reaction of various ketones with different aromatic aldehydes under solvent-free neat conditions to afford the desired chiral anti-aldol products in good to excellent chemical yields, diastereoselectivities and enantioselectivities (up to 99%, up to syn : anti/13 : 87 dr, up to 99% ee).
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Affiliation(s)
- Rajkumar Thiyagarajan
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima Aoba-Ku Sendai 981-8558 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences,Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima Aoba-Ku Sendai 981-8558 Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Michio Tokiwa
- Tokiwakai Group 62 Numajiri Tsuduri-Chou Uchigo Iwaki 973-8053 Japan
| | - Suguru Tokiwa
- Tokiwakai Group 62 Numajiri Tsuduri-Chou Uchigo Iwaki 973-8053 Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
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4
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Ma G, Afewerki S, Zhang K, Ibrahem I, Córdova A. Accelerating Amine‐Catalyzed Asymmetric Reactions by Intermolecular Cooperative Thiourea/Oxime Hydrogen‐Bond Catalysis. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Guangning Ma
- Department of Natural Sciences Engineering and Mathematics Mid Sweden University 851 70 Sundsvall Sweden
| | - Samson Afewerki
- Department of Natural Sciences Engineering and Mathematics Mid Sweden University 851 70 Sundsvall Sweden
| | - Kaiheng Zhang
- Department of Natural Sciences Engineering and Mathematics Mid Sweden University 851 70 Sundsvall Sweden
| | - Ismail Ibrahem
- Department of Natural Sciences Engineering and Mathematics Mid Sweden University 851 70 Sundsvall Sweden
| | - Armando Córdova
- Department of Natural Sciences Engineering and Mathematics Mid Sweden University 851 70 Sundsvall Sweden
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5
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Fanjul-Mosteirín N, del Amo V. Organocatalytic transformations in deep eutectic solvents: Green methodologies made greener. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131967] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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6
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Shimogaki M, Takeshima A, Kano T, Maruoka K. Enantioselective Synthesis of Monosaccharide Analogues by Two-Step Sequential Enamine Catalysis: Benzoyloxylation and Aldol Reaction. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mio Shimogaki
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Aika Takeshima
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Taichi Kano
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Keiji Maruoka
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
- Graduate School of Pharmaceutical Sciences; Graduate School of Science; Kyoto University; Sakyo 606-8501 Kyoto Japan
- School of Chemical Engineering and Light Industry; Graduate School of Science; Guangdong University of Technology; 510006 Guangzhou China
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7
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Arimitsu S, Oshiro K, Endo K, Gima E, Poorsadeghi S. Preparation of Enantiomerically Pure β,β‐Diaryl β‐Hydroxy‐α‐Amino Acids and Evaluation of Their Potential as Organocatalysts. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Satoru Arimitsu
- Department of Chemistry Biology and Marine ScienceUniversity of the Ryukyus 1 Senbaru, Nakagami Nishihara, Okinawa 903-0123 Japan
| | - Koki Oshiro
- Department of Chemistry Biology and Marine ScienceUniversity of the Ryukyus 1 Senbaru, Nakagami Nishihara, Okinawa 903-0123 Japan
| | - Katsuki Endo
- Department of Chemistry Biology and Marine ScienceUniversity of the Ryukyus 1 Senbaru, Nakagami Nishihara, Okinawa 903-0123 Japan
| | - Emi Gima
- Department of Chemistry Biology and Marine ScienceUniversity of the Ryukyus 1 Senbaru, Nakagami Nishihara, Okinawa 903-0123 Japan
| | - Samira Poorsadeghi
- Department of Chemistry Biology and Marine ScienceUniversity of the Ryukyus 1 Senbaru, Nakagami Nishihara, Okinawa 903-0123 Japan
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8
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Bhati M, Kumari K, Easwar S. Probing the Synergistic Catalytic Model: A Rationally Designed Urea-Tagged Proline Catalyst for the Direct Asymmetric Aldol Reaction. J Org Chem 2018; 83:8225-8232. [PMID: 29847121 DOI: 10.1021/acs.joc.8b00962] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A urea tag was incorporated at the C-4 position of proline, cis to its COOH group, in order to explore the prospect of a synergistic effect between the two functional groups in the transition state of the enamine route to the asymmetric aldol reaction. The catalyst proved to be an excellent performer, delivering aldols in high yields and with excellent enantio- and diastereoselectivities using just 2 mol % loading in the presence of water; it also exhibited good levels of recyclability under aqueous conditions. The favorable results reveal the interesting possibility of an intramolecular host-guest interaction between the urea and the amino acid moieties, exerting a beneficial effect on catalysis. The concept could certainly offer a new direction toward more efficient catalyst design.
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Affiliation(s)
- Meeta Bhati
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
| | - Kiran Kumari
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
| | - Srinivasan Easwar
- Department of Chemistry, School of Chemical Sciences and Pharmacy , Central University of Rajasthan , NH-8, Bandarsindri , Distt. Ajmer , Rajasthan 305817 , India
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9
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Anebouselvy K, Shruthi KS, Ramachary DB. Asymmetric Supramolecular Organocatalysis: A Complementary Upgrade to Organocatalysis. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700611] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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10
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Yu H, Xu P, He H, Zhu J, Lin H, Han S. Highly enantioselective Biginelli reactions using methanopyroline/thiourea – based dual organocatalyst systems: asymmetric synthesis of 4-substituted unsaturated aryl dihydropyrimidines. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2016.11.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Nugent TC, Spiteller P, Hussain I, Hussein HAED, Najafian FT. A Catalyst-Directed Remote Stereogenic Center Switch During the Site-Selective Aldol Desymmetrization of Cyclohexanone-Based Diketones. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600833] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Thomas C. Nugent
- Department of Life Sciences and Chemistry; Jacobs University Bremen; Campus Ring 1 28759 Bremen Germany
| | - Peter Spiteller
- Institut für Organische und Analytische Chemie; Universität Bremen; Leobener Straße NW2C 28359 Bremen Germany
| | - Ishtiaq Hussain
- Department of Life Sciences and Chemistry; Jacobs University Bremen; Campus Ring 1 28759 Bremen Germany
| | | | - Foad Tehrani Najafian
- Department of Life Sciences and Chemistry; Jacobs University Bremen; Campus Ring 1 28759 Bremen Germany
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12
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Sánchez D, Carneros H, Castro-Alvarez A, Llàcer E, Planas F, Vilarrasa J. Further insights into the organocatalytic reaction of 2,2-dimethyl-1,3-dioxan-5-one with α-silyloxy aldehydes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Beyond Chemoselectivity: Catalytic Site-Selective Aldolization of Diketones and Exploitation for Enantioselective Alzheimer's Drug Candidate Synthesis. Chemistry 2016; 22:14342-8. [DOI: 10.1002/chem.201602900] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Indexed: 11/07/2022]
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14
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Fanjul-Mosteirín N, Concellón C, del Amo V. l-Isoleucine in a Choline Chloride/Ethylene Glycol Deep Eutectic Solvent: A Reusable Reaction Kit for the Asymmetric Cross-Aldol Carboligation. Org Lett 2016; 18:4266-9. [DOI: 10.1021/acs.orglett.6b01989] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noé Fanjul-Mosteirín
- Departamento de Química
Orgánica e Inorgánica, Universidad de Oviedo, C/Julián
Clavería 8, 33006 Oviedo, Spain
| | - Carmen Concellón
- Departamento de Química
Orgánica e Inorgánica, Universidad de Oviedo, C/Julián
Clavería 8, 33006 Oviedo, Spain
| | - Vicente del Amo
- Departamento de Química
Orgánica e Inorgánica, Universidad de Oviedo, C/Julián
Clavería 8, 33006 Oviedo, Spain
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15
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Affiliation(s)
- Liang Hong
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 China
| | - Wangsheng Sun
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Dongxu Yang
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Guofeng Li
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Rui Wang
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 China
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
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16
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Hang Z, Zhu J, Lian X, Xu P, Yu H, Han S. A highly enantioselective Biginelli reaction using self-assembled methanoproline–thiourea organocatalysts: asymmetric synthesis of 6-isopropyl-3,4-dihydropyrimidines. Chem Commun (Camb) 2016; 52:80-3. [DOI: 10.1039/c5cc07880f] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient self-assembled methanoproline–thiourea organocatalyst for the synthesis of optically active 6-isopropyl-3,4-dihydropyrimidines via an asymmetric Biginelli reaction was developed, which is superior to the individual precatalyst.
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Affiliation(s)
- Zhijun Hang
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Jun Zhu
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Xiang Lian
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Peng Xu
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Han Yu
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
- Department of Chemistry
| | - Sheng Han
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
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17
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Huang H, Bihani M, Zhao JCG. Stereoselective synthesis of spirooxindole derivatives using an organocatalyzed tandem Michael–Michael reaction. Org Biomol Chem 2016; 14:1755-63. [DOI: 10.1039/c5ob02348c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient and stereoselective method for the synthesis of functionalized spirooxindole derivatives was realized using enamine catalysis.
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Affiliation(s)
- Huicai Huang
- Department of Chemistry
- University of Texas at San Antonio
- San Antonio
- USA
| | - Manisha Bihani
- Department of Chemistry
- University of Texas at San Antonio
- San Antonio
- USA
| | - John C.-G. Zhao
- Department of Chemistry
- University of Texas at San Antonio
- San Antonio
- USA
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18
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Hayashi Y, Shomura H, Xu Q, Lear MJ, Sato I. Asymmetric Aldol Reaction of α,α-Disubstituted Acetaldehydes Catalyzed by Diphenylprolinol Silyl Ether for the Construction of Quaternary Stereogenic Centers. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500585] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Rana NK, Huang H, Zhao JCG. Highly diastereodivergent synthesis of tetrasubstituted cyclohexanes catalyzed by modularly designed organocatalysts. Angew Chem Int Ed Engl 2014; 53:7619-23. [PMID: 24924475 DOI: 10.1002/anie.201404072] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Indexed: 11/11/2022]
Abstract
A highly diastereodivergent synthesis of tetrasubstituted cyclohexanes has been achieved using modularly designed organocatalysts (MDOs) which are self-assembled in situ from amino acids and cinchona alkaloid derivatives. Diastereodivergence is realized through controlling the stereoselectivity of the individual steps of a tandem Michael/Michael reaction. Up to 8 of the 16 possible stereoisomers have been successfully obtained in high stereoselectivities using MDOs for the tandem reaction and an ensuing epimerization. The method was used in the enantioselective synthesis of the natural products (-)-α- and β-lycoranes.
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Affiliation(s)
- Nirmal K Rana
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249-0698 (USA)
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20
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Rana NK, Huang H, Zhao JCG. Highly Diastereodivergent Synthesis of Tetrasubstituted Cyclohexanes Catalyzed by Modularly Designed Organocatalysts. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404072] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Zhang Z, Bao Z, Xing H. N,N'-Bis[3,5-bis(trifluoromethyl)phenyl]thiourea: a privileged motif for catalyst development. Org Biomol Chem 2014; 12:3151-62. [PMID: 24710861 DOI: 10.1039/c4ob00306c] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Over the last decade, the use of (thio)urea derivatives as organocatalysts in organic chemistry has increased rapidly. One of the key features is their ability to activate substrates and subsequently stabilize partially developing negative charges (e.g., oxyanions) in the transition states employing explicit double hydrogen bonding. Among (thio)urea-based catalysts, N,N'-bis[3,5-bis(trifluoromethyl)phenyl]thiourea developed by Schreiner's group (abbreviated here as Schreiner's thiourea) has played a very important role in the development of H-bond organocatalysts. Nowadays it is used extensively in promoting organic transformations, and the 3,5-bis(trifluoromethyl)phenyl motif thereof is used ubiquitously in H-bond catalysts. This review summarizes the key developments of Schreiner's thiourea-mediated reactions with the aim to further expand the applications of (thio)urea-based catalysts.
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Affiliation(s)
- Zhiguo Zhang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Department of Chemical and Biological Engineering, Zhejiang University, Zheda Road 38, Hangzhou 310027, China.
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22
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Akagawa K, Suzuki R, Kudo K. Development of a Peptide-Based Primary Aminocatalyst with a Helical Structure. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201400028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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23
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Demircan E, Eymur S, Demir AS. Proline–calixarene thiourea host–guest complex catalyzed enantioselective aldol reactions: from nonpolar solvents to the presence of water. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.01.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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tert-Butyl esters of tripeptides based on Pro-Phe as organocatalysts for the asymmetric aldol reaction in aqueous or organic medium. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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25
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Raynal M, Ballester P, Vidal-Ferran A, van Leeuwen PWNM. Supramolecular catalysis. Part 1: non-covalent interactions as a tool for building and modifying homogeneous catalysts. Chem Soc Rev 2014; 43:1660-733. [DOI: 10.1039/c3cs60027k] [Citation(s) in RCA: 519] [Impact Index Per Article: 51.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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26
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Perera S, Sinha D, Rana NK, Trieu-Do V, Zhao JCG. List–Barbas–Mannich Reaction Catalyzed by Modularly Designed Organocatalysts. J Org Chem 2013; 78:10947-53. [DOI: 10.1021/jo4019304] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sandun Perera
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, United States
| | - Debarshi Sinha
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, United States
| | - Nirmal K. Rana
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, United States
| | - Van Trieu-Do
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, United States
| | - John Cong-Gui Zhao
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0698, United States
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27
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Trost BM, Michaelis DJ, Truica MI. Dinuclear zinc-ProPhenol-catalyzed enantioselective α-hydroxyacetate aldol reaction with activated ester equivalents. Org Lett 2013; 15:4516-9. [PMID: 23947595 DOI: 10.1021/ol402081p] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An enantioselective α-hydroxyacetate aldol reaction that employs N-acetyl pyrroles as activated ester equivalents and generates syn 1,2-diols in good yield and diastereoselectivity is reported. This dinuclear zinc-ProPhenol-catalyzed transformation proceeds with high enantioselectivity with a wide variety of substrates including aryl, alyl, and alkenyl aldehydes. The resulting α,β-dihydroxy activated esters are versatile intermediates for the synthesis of a variety of carboxylic acid derivatives including amides, esters, and unsymmetrical ketones.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA.
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28
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Organocatalytic aldol reaction of indole-3-carbaldehydes with ketones: synthesis of chiral 3-substituted indoles. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Sinha D, Perera S, Zhao JCG. Highly Enantioselective Inverse-Electron-Demand Hetero-Diels-Alder Reactions Catalyzed by Modularly Designed Organocatalysts. Chemistry 2013; 19:6976-9. [DOI: 10.1002/chem.201300168] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Indexed: 11/06/2022]
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30
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Meng F, Jang H, Jung B, Hoveyda AH. Cu-catalyzed chemoselective preparation of 2-(pinacolato)boron-substituted allylcopper complexes and their in situ site-, diastereo-, and enantioselective additions to aldehydes and ketones. Angew Chem Int Ed Engl 2013; 52:5046-51. [PMID: 23553989 DOI: 10.1002/anie.201301018] [Citation(s) in RCA: 173] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Fanke Meng
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA
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Meng F, Jang H, Jung B, Hoveyda AH. Cu-Catalyzed Chemoselective Preparation of 2-(Pinacolato)boron-Substituted Allylcopper Complexes and their In Situ Site-, Diastereo-, and Enantioselective Additions to Aldehydes and Ketones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301018] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Nugent TC, Bibi A, Sadiq A, Shoaib M, Umar MN, Tehrani FN. Chiral picolylamines for Michael and aldol reactions: probing substrate boundaries. Org Biomol Chem 2012; 10:9287-94. [PMID: 23104278 DOI: 10.1039/c2ob26382c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we report on inroads concerning increased substrate breadth via the picolylamine organocatalyst template, a vicinal chiral diamine based on a pyridine-primary amine motif. The addition of cyclohexanone to β-nitrostyrene has many catalyst solutions, but cyclopentanone and isobutyraldehyde additions continue to be challenging. PicAm-3 (10 mol%) readily allows the Michael addition of cyclopentanone or isobutyraldehyde (5.0 equiv.) to β-nitrostyrene derivatives. By contrast, PicAm-1 (7.0 mol%) is optimal for catalyzing the aldol reaction of cyclohexanone or cycloheptanone (3.3 equiv.) with aromatic aldehydes. Eighteen products are reported and for each reaction type new products are reported (4b-d, 9c). Very good yields and stereoselectivities are generally noted. The reactions, which require an acid additive, proceed via a transient chiral enamine and a mechanistic case is put forth for a bifunctional catalysis model.
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Affiliation(s)
- Thomas C Nugent
- Department of Chemistry, School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
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Ma G, Lin S, Ibrahem I, Kubik G, Liu L, Sun J, Córdova A. Achiral Co-Catalyst Induced Switches in Catalytic Asymmetric Reactions on Racemic Mixtures (RRM): From Stereodivergent RRM to Stereoconvergent Deracemization by Combination of Hydrogen Bond Donating and Chiral Amine Catalysts. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200357] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Sinha D, Mandal T, Gogoi S, Goldman JJ, Zhao JCG. Asymmetric Aldol Reaction Catalyzed by Modularly Designed Organocatalysts. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200639] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Martínez-Castañeda Á, Poladura B, Rodríguez-Solla H, Concellón C, del Amo V. Highly Enantioselective Proline-Catalysed Direct Aldol Reaction of Chloroacetone and Aromatic Aldehydes. Chemistry 2012; 18:5188-90. [DOI: 10.1002/chem.201103667] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 02/24/2012] [Indexed: 11/08/2022]
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