1
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Mohiti M, Lu Y, He H, Ni SF, Somfai P. Regio- and Enantioselective Synthesis of 1,2-Diamines by Formal Hydroamination of Enamines: Scope, Mechanism, and Asymmetric Synthesis of Orthogonally Protected Bis-Piperazines as a Privileged Scaffold. Chemistry 2024; 30:e202303078. [PMID: 38205968 DOI: 10.1002/chem.202303078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/12/2024]
Abstract
We have previously reported the first formal hydroamination of enamines for the synthesis of chiral 1,2-diamines. Here, we describe: (i) the discovery, optimization, and substrate expansion of this reaction; (ii) a novel and straightforward protocol for the "click-type" synthesis of enamines in quantitative yield utilizing sodium sulfate in a dual role as an ancillary and dehydrating agent without the need for workup or purification; (iii) the application of this methodology to the first enantioselective synthesis of orthogonally protected 1,1'-(1-(4-fluorophenyl)ethane-1,2-diyl) piperazines, a scaffold for rapid lead optimization in drug discovery; (iv) a computational investigation into the mechanism and rationalization of the enantioselectivities of the reaction.
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Affiliation(s)
- Maziar Mohiti
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
| | - Yu Lu
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
| | - Hui He
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, P.R. China
| | - Shao-Fei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, P.R. China
| | - Peter Somfai
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 22100, Lund, Sweden
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2
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Deng Z, Padalino MA, Jan JEL, Park S, Danneman MW, Johnston JN. Generality-Driven Catalyst Development: A Universal Catalyst for Enantioselective Nitroalkene Reduction. J Am Chem Soc 2024; 146:1269-1275. [PMID: 38176098 PMCID: PMC10862354 DOI: 10.1021/jacs.3c12436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Cracking the selectivity-generality paradox is among the most pressing challenges in asymmetric catalysis. This obstacle prevents the immediate and successful translation of new methods to diverse small molecules. This is particularly rate-limiting for therapeutic development, where availability and structural diversity are often critical components of successful campaigns. Here we describe the union of generality-driven enantioselective catalysis and the preparation of diverse peptidomimetics. A single new organocatalyst provides high selectivity and substrate generality that is matched only by a combination of metal and organocatalysts. Within organocatalysis, this discovery breaks a 16-year monolithic paradigm, uncovering a powerful new scaffold for enantioselective reduction with behavior that suggests the recognition of a nitroethylene minimal catalaphile.
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Affiliation(s)
- Zihang Deng
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235
| | - Melanie A. Padalino
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235
| | - Julius E. L. Jan
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235
| | - Sangjun Park
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235
| | - Michael W. Danneman
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235
| | - Jeffrey N. Johnston
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235
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3
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Bing JA, Schley ND, Johnston JN. Fluorine-induced diastereodivergence discovered in an equally rare enantioselective syn-aza-Henry reaction. Chem Sci 2022; 13:2614-2623. [PMID: 35356677 PMCID: PMC8890141 DOI: 10.1039/d1sc05910f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 02/03/2022] [Indexed: 11/21/2022] Open
Abstract
Attention to the aza-Henry reaction, particularly over the past two decades, has resulted in a wide range of effective catalysts for the enantio- and diastereoselective versions, driven by the versatility of the β-amino nitroalkane products as precursors to secondary amines and vic-diamines. Despite this broad effort, syn-diastereoselective variants are exceedingly rare. We have discovered a subset of α-fluoro nitroalkane additions that are characterized by an unusual crossover in diastereoselection, often delivering the products with high selectivities. We report here a rigorous comparative analysis of non-fluorinated and α-fluoro nitroalkanes in their additions to azomethines. Both homogeneous and heterogeneous catalysis were applied to probe the possibility that this phenomenon might be more widely operative in the enantioselective additions of fluorine-substituted carbon nucleophiles. A complete correlation within four categories is described that uncovered a clear trend, while revealing a dramatic and distinct reversal of diastereoselection that would normally go undetected.
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Affiliation(s)
- Jade A Bing
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University Nashville Tennessee 37235-1822 USA
| | - Nathan D Schley
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University Nashville Tennessee 37235-1822 USA
| | - Jeffrey N Johnston
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University Nashville Tennessee 37235-1822 USA
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4
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Struble TJ, Smajlagic I, Foy H, Dudding T, Johnston JN. DFT-Based Stereochemical Rationales for the Bifunctional Brønsted Acid/Base-Catalyzed Diastereodivergent and Enantioselective aza-Henry Reactions of α-Nitro Esters. J Org Chem 2021; 86:15606-15617. [PMID: 34669416 DOI: 10.1021/acs.joc.1c02112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A pair of chiral bis(amidine) [BAM] proton complexes provide reagent (catalyst)-controlled, highly diastereo- and enantioselective direct aza-Henry reactions leading to α-alkyl-substituted α,β-diamino esters. A C2-symmetric ligand provides high anti-selectivity, while a nonsymmetric congener exhibits syn-selectivity in this example of diastereodivergent, enantioselective catalysis. A detailed computational analysis is reported for the first time, one that supports distinct models for selectivity resulting from the more hindered binding cavity of the C1-symmetric ligand. Binding in this congested pocket accommodates four hydrogen bond contacts among ligands and substrates, ultimately favoring a pre-syn arrangement highlighted by pyridinium-azomethine activation and quinolinium-nitronate activation. The complementary transition states reveal a wide range of alternatives. Comparing the C1- and C2-symmetric catalysts highlights distinct electrophile binding orientations despite their common hydrogen bond donor-acceptor features. Among the factors driving unusual high syn-diastereoselection are favorable dispersion forces that leverage the anthracenyl substituent of the C1-symmetric ligand.
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Affiliation(s)
- Thomas J Struble
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Ivor Smajlagic
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Hayden Foy
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Travis Dudding
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Jeffrey N Johnston
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
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5
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Kodama K, Takase F, Hirose T. Direct enantioseparation of axially chiral 1,1′-biaryl-2,2′-diols using amidine-based resolving agents. RSC Adv 2021; 11:18162-18170. [PMID: 35480945 PMCID: PMC9033420 DOI: 10.1039/d1ra03546k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 05/13/2021] [Indexed: 11/30/2022] Open
Abstract
Amidine-based optically active resolving agents for enantiomer separation of axially chiral 1,1′-biaryl-2,2′-diols have been developed. A strongly basic amidine bearing no substituents on its nitrogen atoms enables the formation of their diastereomeric salts upon being mixed with weakly acidic phenol derivatives. Enantiopure 1,1′-biaryl-2,2′-diols can be obtained in high yields after only one crystallization of their salts with the chiral amidine derived from dehydroabietic acid. X-ray crystallography revealed that the amidine moiety forms a salt with the phenol group and additional intermolecular NH/π interactions contribute to the efficient chiral recognition process. Enantioseparation of atropisomeric biphenols using a chiral amidine derived from dehydroabietic acid was reported. Only one crystallization of their mixture gave pure diastereomeric salts of biphenols from racemate.![]()
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Affiliation(s)
- Koichi Kodama
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Japan
| | - Fusato Takase
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Japan
| | - Takuji Hirose
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Japan
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6
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Corsi M, Magnolfi S, Machetti F. Transesterification of Methyl 2-Nitroacetate to Superior Esters. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000050] [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)
- Massimo Corsi
- Dipartimento di Chimica “Ugo Schiff” dell' Università degli Studi di Firenze; via Della Lastruccia 13 50019 Sesto Fiorentino Firenze Italy
| | - Stefano Magnolfi
- Istituto di Chimica dei Composti Organometallici (ICCOM) del Consiglio Nazionale delle Ricerche (CNR); c/o Dipartimento di Chimica “Ugo Schiff” dell' Università degli Studi di Firenze; via Della Lastruccia 13 50019 Sesto Fiorentino Firenze Italy
| | - Fabrizio Machetti
- Istituto di Chimica dei Composti Organometallici (ICCOM) del Consiglio Nazionale delle Ricerche (CNR); c/o Dipartimento di Chimica “Ugo Schiff” dell' Università degli Studi di Firenze; via Della Lastruccia 13 50019 Sesto Fiorentino Firenze Italy
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7
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Payne C, Kass SR. Structural considerations for charge‐enhanced Brønsted acid catalysts. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Curtis Payne
- Department of Chemistry University of Minnesota Minneapolis MN USA
| | - Steven R. Kass
- Department of Chemistry University of Minnesota Minneapolis MN USA
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8
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Lv D, Zhao M, Wang Y, Zhou Z. 3-Nitro-3,4-dihydrocoumarins: valuable precursors for the synthesis of enantiomerically enriched masked quaternary α-amino acid derivatives with a 3,4-dihydrocoumarin scaffold. Org Biomol Chem 2019; 17:9636-9645. [PMID: 31670332 DOI: 10.1039/c9ob02089f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A bifunctional squaramide catalyzed enantioselective formal [2 + 4] annulation reaction with 3-nitro-3,4-dihydrocoumarins and ortho-quinone methide has been developed. Novel chiral masked quaternary α-amino acid derivatives with a 3,4-dihydrocoumarin scaffold are obtained in a highly stereocontrolled manner. Representative transformation of the annulation product to a biologically important quaternary α-amino acid derivative is achieved without any appreciable loss in the diastereo- and enantioselectivity.
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Affiliation(s)
- Dan Lv
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Min Zhao
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Youming Wang
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
| | - Zhenghong Zhou
- Institute and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
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9
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Chen Y, Pan Y, He Y, Fan Q. Consecutive Intermolecular Reductive Amination/Asymmetric Hydrogenation: Facile Access to Sterically Tunable Chiral Vicinal Diamines and N‐Heterocyclic Carbenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909919] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ya Chen
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences (ICCAS)University of Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Yixiao Pan
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences (ICCAS)University of Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Yan‐Mei He
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences (ICCAS)University of Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Qing‐Hua Fan
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences (ICCAS)University of Chinese Academy of Sciences Beijing 100190 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 P. R. China
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10
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Chen Y, Pan Y, He Y, Fan Q. Consecutive Intermolecular Reductive Amination/Asymmetric Hydrogenation: Facile Access to Sterically Tunable Chiral Vicinal Diamines and N‐Heterocyclic Carbenes. Angew Chem Int Ed Engl 2019; 58:16831-16834. [DOI: 10.1002/anie.201909919] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Ya Chen
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences (ICCAS)University of Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Yixiao Pan
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences (ICCAS)University of Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Yan‐Mei He
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences (ICCAS)University of Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Qing‐Hua Fan
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of Sciences (ICCAS)University of Chinese Academy of Sciences Beijing 100190 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 P. R. China
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11
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Ichikawa S, Dai XJ, Buchwald SL. Regio- and Enantioselective Synthesis of 1,2-Diamine Derivatives by Copper-Catalyzed Hydroamination. Org Lett 2019; 21:4370-4373. [PMID: 31099584 DOI: 10.1021/acs.orglett.9b01592] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A highly regio- and enantioselective synthesis of 1,2-diamine derivatives from γ-substituted allylic pivalamides using copper-catalyzed hydroamination is reported. The N-pivaloyl group is essential, in both facilitating the hydrocupration step and suppressing an unproductive β-elimination from the alkylcopper intermediate. This approach enables an efficient construction of chiral differentially protected vicinal diamines under mild conditions with broad functional group tolerance.
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Affiliation(s)
- Saki Ichikawa
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Xi-Jie Dai
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Stephen L Buchwald
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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12
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Sun J, Li Y, Gui Y, Xu Y, Zha Z, Wang Z. Copper(II)-catalyzed enantioselective conjugate addition of nitro esters to 2-enoyl-pyridine N-oxides. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.11.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Vishe M, Johnston JN. The inverted ketene synthon: a double umpolung approach to enantioselective β 2,3-amino amide synthesis. Chem Sci 2019; 10:1138-1143. [PMID: 30774911 PMCID: PMC6349014 DOI: 10.1039/c8sc04330b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 11/11/2018] [Indexed: 12/29/2022] Open
Abstract
A stereocontrolled synthesis of β2,3-amino amides is reported. Innovation is encapsulated by the first use of nitroalkenes to achieve double umpolung in enantioselective β-amino amide synthesis. Step economy is also fulfilled by the use of Umpolung Amide Synthesis (UmAS) in the second step, delivering the amide product without intermediacy of a carboxylic acid or activated derivative. Molybdenum oxide-mediated hydride reduction provides the anti-β2,3-amino amide with high selectivity.
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Affiliation(s)
- Mahesh Vishe
- Department of Chemistry , Vanderbilt Institute of Chemical Biology Vanderbilt University , Nashville , Tennessee 37235 , USA .
| | - Jeffrey N Johnston
- Department of Chemistry , Vanderbilt Institute of Chemical Biology Vanderbilt University , Nashville , Tennessee 37235 , USA .
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14
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Fang Y, Lu N, Wei Z, Cao J, Liang D, Lin Y, Duan H. Highly enantioselective aza-henry reaction of ketimines catalyzed by a chiral bifunctional thiourea-tertiary amine derived from quinine. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.10.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Smajlagic I, Durán R, Pilkington M, Dudding T. Cyclopropenium Enhanced Thiourea Catalysis. J Org Chem 2018; 83:13973-13980. [PMID: 30352160 DOI: 10.1021/acs.joc.8b02321] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An integral part of modern organocatalysis is the development and application of thiourea catalysts. Here, as part of our program aimed at developing cyclopropenium catalysts, the synthesis of a thiourea-cyclopropenium organocatalyst with both cationic hydrogen-bond donor and electrostatic character is reported. The utility of the this thiourea organocatalyst is showcased in pyranylation reactions employing phenols, primary, secondary, and tertiary alcohols under operationally simple and mild reaction conditions for a broad substrate scope. The addition of benzoic acid as a co-catalyst facilitating cooperative Brønsted acid catalysis was found to be valuable for reactions involving phenols and higher substituted alcohols. Mechanistic investigations, including kinetic and 1H NMR binding studies in conjunction with density function theory calculations, are described that collectively support a Brønsted acid mode of catalysis.
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Affiliation(s)
- Ivor Smajlagic
- Brock University , 1812 Sir Isaac Brock Way , St. Catharines , Ontario L2S 3A1 , Canada
| | - Rocio Durán
- Brock University , 1812 Sir Isaac Brock Way , St. Catharines , Ontario L2S 3A1 , Canada
| | - Melanie Pilkington
- Brock University , 1812 Sir Isaac Brock Way , St. Catharines , Ontario L2S 3A1 , Canada
| | - Travis Dudding
- Brock University , 1812 Sir Isaac Brock Way , St. Catharines , Ontario L2S 3A1 , Canada
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16
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Liu Y, Ye L, Shi Z, Yang X, Zhao Z, Li X. Highly enantioselective Michael addition of α-nitroacetate to α,β-unsaturated pyrazolamide catalyzed by a bifunctional squaramide. Chirality 2018; 30:1287-1303. [PMID: 30286255 DOI: 10.1002/chir.23023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/20/2018] [Accepted: 08/30/2018] [Indexed: 01/03/2023]
Abstract
A highly enantioselective (91- > 99% ee) Michael addition of α-nitroacetate to α,β-unsaturated pyrazolamide was developed in the presence of a bifunctional squaramide. Satisfactory isolated yields (42%-99%) have been achieved with a wide range of α,β-unsaturated pyrazolamides, albeit acceptor of this type displayed poor reactivity in the precedent reports. The adducts resulting from this protocol are useful synthetic intermediates for further synthetic modification.
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Affiliation(s)
- Yingying Liu
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Ling Ye
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, China
| | - Zhichuan Shi
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Xuejun Yang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Zhigang Zhao
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, China
| | - Xuefeng Li
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, China
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17
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Furukawa Y, Suzuki R, Nakashima T, Gramage-Doria R, Ohmatsu K, Ooi T. Protonated Bis-1,2,3-triazole as an Anion-Binding Chiral Brønsted Acid for Catalytic Asymmetric Friedel–Crafts Reaction of Indoles with Imines. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yukino Furukawa
- Institute of Transformative Bio-Molecules (WPI-ITbM), and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Ryuhei Suzuki
- Institute of Transformative Bio-Molecules (WPI-ITbM), and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Tsubasa Nakashima
- Institute of Transformative Bio-Molecules (WPI-ITbM), and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Rafael Gramage-Doria
- Institute of Transformative Bio-Molecules (WPI-ITbM), and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Kohsuke Ohmatsu
- Institute of Transformative Bio-Molecules (WPI-ITbM), and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM), and Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
- CREST, Japan Science and Technology Agency (JST), Chikusa, Nagoya, Aichi 464-8601, Japan
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18
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Shao X, Li K, Malcolmson SJ. Enantioselective Synthesis of anti-1,2-Diamines by Cu-Catalyzed Reductive Couplings of Azadienes with Aldimines and Ketimines. J Am Chem Soc 2018; 140:7083-7087. [PMID: 29775301 PMCID: PMC5999589 DOI: 10.1021/jacs.8b04750] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Here we report highly efficient and chemoselective azadiene-imine reductive couplings catalyzed by (Ph-BPE)Cu-H that afford anti-1,2-diamines. In all cases, reactions take place with either aldimine or ketimine electrophiles to deliver a single diastereomer of product in >95:5 er. The products' diamines are easily differentiable, facilitating downstream synthesis.
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Affiliation(s)
- Xinxin Shao
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Kangnan Li
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Steven J. Malcolmson
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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19
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Abstract
This review covers diastereo- and enantiodivergent catalyzed reactions in acyclic and cyclic systems using metal complexes or organocatalysts. Among them, nucleophilic addition to carbon-carbon and carbon-nitrogen double bonds, α-functionalization of carbonyl compounds, allylic substitutions, and ring opening of oxiranes and aziridines are considered. The diastereodivergent synthesis of alkenes from alkynes is also included. Finally, stereodivergent intramolecular and intermolecular cycloadditions and other cyclizations are also reported.
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Affiliation(s)
- Irina P Beletskaya
- Chemistry Department , M. V. Lomonosov Moscow State University , Leninskie Gory 1 , 119992 Moscow , Russia
| | - Carmen Nájera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Miguel Yus
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
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20
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Lu N, Fang Y, Gao Y, Wei Z, Cao J, Liang D, Lin Y, Duan H. Bifunctional Thiourea–Ammonium Salt Catalysts Derived from Cinchona Alkaloids: Cooperative Phase-Transfer Catalysts in the Enantioselective Aza-Henry Reaction of Ketimines. J Org Chem 2018; 83:1486-1492. [DOI: 10.1021/acs.joc.7b03078] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ning Lu
- Department
of Organic Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yanhong Fang
- Department
of Organic Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yuan Gao
- Department
of Organic Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Zhonglin Wei
- Department
of Organic Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Jungang Cao
- Department
of Organic Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Dapeng Liang
- Department
of Organic Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yingjie Lin
- Department
of Organic Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Haifeng Duan
- Department
of Organic Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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21
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Wang Y, Wang Q, Zhu J. Organocatalytic Nucleophilic Addition of Hydrazones to Imines: Synthesis of Enantioenriched Vicinal Diamines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702295] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yang Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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22
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Wang Y, Wang Q, Zhu J. Organocatalytic Nucleophilic Addition of Hydrazones to Imines: Synthesis of Enantioenriched Vicinal Diamines. Angew Chem Int Ed Engl 2017; 56:5612-5615. [DOI: 10.1002/anie.201702295] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Yang Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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23
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Affiliation(s)
- Manisha Bihani
- Department of Chemistry; University of Texas at San Antonio; One UTSA Circle San Antonio TX 78249-0698 USA
| | - John C.-G. Zhao
- Department of Chemistry; University of Texas at San Antonio; One UTSA Circle San Antonio TX 78249-0698 USA
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24
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Almond-Thynne J, Blakemore DC, Pryde DC, Spivey AC. Site-selective Suzuki-Miyaura coupling of heteroaryl halides - understanding the trends for pharmaceutically important classes. Chem Sci 2017; 8:40-62. [PMID: 28451148 PMCID: PMC5304707 DOI: 10.1039/c6sc02118b] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 08/04/2016] [Indexed: 12/22/2022] Open
Abstract
Suzuki-Miyaura cross-coupling reactions of heteroaryl polyhalides with aryl boronates are surveyed. Drawing on data from literature sources as well as bespoke searches of Pfizer's global chemistry RKB and CAS Scifinder® databases, the factors that determine the site-selectivity of these reactions are discussed with a view to rationalising the trends found.
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Affiliation(s)
- Joshua Almond-Thynne
- Department of Chemistry , Imperial College London , South Kensington Campus , London , SW& 2AZ , UK .
| | - David C Blakemore
- Pfizer Worldwide Medicinal Chemistry , The Portway Building, Granta Park, Great Abington , Cambridge , CB21 6GS , UK
| | - David C Pryde
- Pfizer Worldwide Medicinal Chemistry , The Portway Building, Granta Park, Great Abington , Cambridge , CB21 6GS , UK
| | - Alan C Spivey
- Department of Chemistry , Imperial College London , South Kensington Campus , London , SW& 2AZ , UK .
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25
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Shiomi N, Yamamoto K, Nagasaki K, Hatanaka T, Funahashi Y, Nakamura S. Enantioselective Oxidative Ring-Opening Reaction of Aziridines with α-Nitroesters Using Cinchona Alkaloid Amide/Nickel(II) Catalysts. Org Lett 2016; 19:74-77. [DOI: 10.1021/acs.orglett.6b03346] [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)
- Noriyuki Shiomi
- Department
of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
- Frontier
Research Institute for Material Science, Nagoya Institute of Technology, Gokiso,
Showa-ku, Nagoya 466-8555, Japan
| | - Keisuke Yamamoto
- Department
of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Kazuma Nagasaki
- Department
of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Tsubasa Hatanaka
- Department
of Chemistry, Graduate School of Science, Osaka University 1-1
Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yasuhiro Funahashi
- Department
of Chemistry, Graduate School of Science, Osaka University 1-1
Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Shuichi Nakamura
- Department
of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
- Frontier
Research Institute for Material Science, Nagoya Institute of Technology, Gokiso,
Showa-ku, Nagoya 466-8555, Japan
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26
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Chentsova A, Ushakov DB, Seeberger PH, Gilmore K. Synthesis of α-Nitro Carbonyls via Nitrations in Flow. J Org Chem 2016; 81:9415-9421. [DOI: 10.1021/acs.joc.6b01634] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Anna Chentsova
- Department
of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Dmitry B. Ushakov
- Department
of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Peter H. Seeberger
- Department
of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Institute
of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Kerry Gilmore
- Department
of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
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27
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Miao Z, Qi C, Wang L, Wensley AM, Luan Y. The synthesis of metal-organic framework Al-MIL-53-derived Brønsted acid catalyst and its application in the Mannich reaction. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3569] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | - Chao Qi
- School of Materials Science and Engineering; University of Science and Technology Beijing; 30 Xueyuan Road, Haidian District Beijing 100083 China
| | - Liangshi Wang
- National Engineering Research Center for Rare Earth Materials; General Research Institute for Nonferrous Metals; Beijing 100088 China
| | - Allison M. Wensley
- School of Materials Science and Engineering; University of Science and Technology Beijing; 30 Xueyuan Road, Haidian District Beijing 100083 China
| | - Yi Luan
- School of Materials Science and Engineering; University of Science and Technology Beijing; 30 Xueyuan Road, Haidian District Beijing 100083 China
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28
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Nájera C, Miguel Sansano J, Gómez-Bengoa E. Heterocycle-based bifunctional organocatalysts in asymmetric synthesis. PURE APPL CHEM 2016. [DOI: 10.1515/pac-2016-0403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
AbstractDifferent chiral bifunctional organocatalysts derived from trans-cyclohexane-1,2-diamine bearing different types of guanidine units able to form-hydrogen bonding activation have been designed. Conformational rigid 2-aminobenzimidazoles bearing a tertiary amino group have been used in enantioselective Michael type reactions of activated methylene compounds to nitroalkenes. The C2 symmetric bis(2-aminobenzimidazole) derivatives the appropriate organocatalyst for the conjugate addition of 1,3-dicarbonyl compounds to maleimides as well as for the SN1 reaction of benzylic alcohols with carbon nucleophiles. 2-Aminobenzimidazoles bearing a primary amino group have shown excellent catalytic activity in the Michael reaction of aldehydes to maleimides and nitroalkenes. Diastereomeric 2-aminopyrimidines bearing a prolinamide unit have been incorporated in the trans-cyclohexane-1,2-diamine scaffold and have been used for the inter- and intra-molecular direct aldol reaction under solvent-free conditions. For the Michael reaction of aldehydes with maleimides the primary amine 2-aminopyrimidine has shown excellent efficiency as organocatalyst. The bifunctional character of these organocatalysts has been demonstrated by means of DFT calculations.
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Affiliation(s)
- Carmen Nájera
- 1Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - José Miguel Sansano
- 1Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Enrique Gómez-Bengoa
- 2Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco, Apdo. 1072, E-20018 San Sebastián, Spain
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29
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Nishikawa Y, Nakano S, Tahira Y, Terazawa K, Yamazaki K, Kitamura C, Hara O. Chiral Pyridinium Phosphoramide as a Dual Brønsted Acid Catalyst for Enantioselective Diels–Alder Reaction. Org Lett 2016; 18:2004-7. [DOI: 10.1021/acs.orglett.6b00608] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yasuhiro Nishikawa
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Saki Nakano
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Yuu Tahira
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Kanako Terazawa
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Ken Yamazaki
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Chitoshi Kitamura
- Department
of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
| | - Osamu Hara
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
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30
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Tsukanov SV, Johnson MD, May SA, Rosemeyer M, Watkins MA, Kolis SP, Yates MH, Johnston JN. Development of an Intermittent-Flow Enantioselective Aza-Henry Reaction Using an Arylnitromethane and Homogeneous Brønsted Acid-Base Catalyst with Recycle. Org Process Res Dev 2016; 20:215-226. [PMID: 27065720 PMCID: PMC4821467 DOI: 10.1021/acs.oprd.5b00245] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A stereoselective aza-Henry reaction between an arylnitromethane and Boc-protected aryl aldimine using a homogeneous Brønsted acid-base catalyst was translated from batch format to an automated intermittent-flow process. This work demonstrates the advantages of a novel intermittent-flow setup with product crystallization and slow reagent addition which is not amenable to the standard continuous equipment: plug flow tube reactor (PFR) or continuous stirred tank reactor (CSTR). A significant benefit of this strategy was the integration of an organocatalytic enantioselective reaction with straightforward product separation, including recycle of the catalyst, resulting in increased intensity of the process by maintaining high catalyst concentration in the reactor. A continuous campaign confirmed that these conditions could effectively provide high throughput of material using an automated system while maintaining high selectivity, thereby addressing nitroalkane safety and minimizing catalyst usage.
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Affiliation(s)
- Sergey V. Tsukanov
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, Unites States
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Martin D. Johnson
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, Unites States
| | - Scott A. May
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, Unites States
| | - Morgan Rosemeyer
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, Unites States
| | - Michael A. Watkins
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, Unites States
| | - Stanley P. Kolis
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, Unites States
| | - Matthew H. Yates
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, Unites States
| | - Jeffrey N. Johnston
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
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31
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Affiliation(s)
- Yang Fan
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
| | - Steven R. Kass
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street, SE, Minneapolis, Minnesota 55455, United States
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32
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Kwiatkowski J, Lu Y. Asymmetric Michael addition of α-fluoro-α-nitro esters to nitroolefins: towards synthesis of α-fluoro-α-substituted amino acids. Org Biomol Chem 2015; 13:2350-9. [PMID: 25563391 DOI: 10.1039/c4ob02486a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
α-Fluoro-α-nitro esters were used as reaction partners in Michael addition to nitroalkenes, and the products were obtained in excellent chemical yields and with high enantioselectivities. Moreover, α-fluoro-α-amino ester with a quaternary α-carbon was prepared for the first time.
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Affiliation(s)
- Jacek Kwiatkowski
- Graduate School for Integrative Sciences & Engineering (NGS), Centre for Life Sciences (CeLS), National University of Singapore, #05-01, 28 Medical Drive, 117456 Singapore.
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33
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Zlotin SG, Kochetkov SV. C2-Symmetric diamines and their derivatives as promising organocatalysts for asymmetric synthesis. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4562] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Sun Z, Weidner K, Kumagai N, Shibasaki M. Direct Catalytic Asymmetric Mannich-Type Reaction of α-N3Amide. Chemistry 2015; 21:17574-7. [DOI: 10.1002/chem.201503921] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Indexed: 11/06/2022]
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35
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Fang B, Liu X, Zhao J, Tang Y, Lin L, Feng X. Chiral bifunctional guanidine-catalyzed enantioselective Aza-Henry reaction of isatin-derived ketimines. J Org Chem 2015; 80:3332-8. [PMID: 25723257 DOI: 10.1021/acs.joc.5b00075] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient asymmetric aza-Henry reaction of isatin-derived ketimines has been achieved by using a chiral guanidine-amide organocatalyst. A series of 3-substituted 3-amino-2-oxindoles was obtained with excellent results (up to 99% yield, 94% ee). Other functionalized derivatives were also conveniently transformed. This metal-free system was convenient, practical, and insensitive to air and moisture. On the basis of the crystal structure of the catalyst and NMR spectra analysis, a bifunctional catalytic model was suggested to explain the origin of the asymmetric process.
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36
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Işık M, Unver MY, Tanyeli C. Modularly Evolved 2-AminoDMAP/Squaramides as Highly Active Bifunctional Organocatalysts in Michael Addition. J Org Chem 2015; 80:828-35. [DOI: 10.1021/jo5022597] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Murat Işık
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
- Department
of Metallurgical and Materials Engineering, Bingöl University, 12400 Bingöl, Turkey
| | - M. Yagiz Unver
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Cihangir Tanyeli
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
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37
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Luan Y, Qi Y, Jin Z, Peng X, Gao H, Wang G. Synthesis of a flower-like Zr-based metal–organic framework and study of its catalytic performance in the Mannich reaction. RSC Adv 2015. [DOI: 10.1039/c4ra15257c] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
UiO-66-(COOH)2 with flower-like morphology was synthesized for the first time and its heterogeneous Brønsted acidic catalytic activities have been studied.
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Affiliation(s)
- Yi Luan
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Yue Qi
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Zhaokui Jin
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Xiong Peng
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Hongyi Gao
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Ge Wang
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
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38
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Vicario J, Ortiz P, Ezpeleta JM, Palacios F. Asymmetric Synthesis of Functionalized Tetrasubstituted α-Aminophosphonates through Enantioselective Aza-Henry Reaction of Phosphorylated Ketimines. J Org Chem 2014; 80:156-64. [PMID: 25422859 DOI: 10.1021/jo502233m] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Bifunctional Cinchona alkaloid thioureas efficiently catalyze asymmetric nucleophilic addition of nitromethane to ketimines derived from α-aminophosphonic acids to afford tetrasubstituted α-amino-β-nitro-phosphonates. Catalytic hydrogenation of (S)-α-amino-β-nitro-phosphonate 2d gives enantiopure (S)-α,β-diaminophosphonate 3.
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Affiliation(s)
- Javier Vicario
- Departamento de Química Orgánica I, Centro de Investigación y Estudios Avanzados "Lucio Lascaray"- Facultad de Farmacia, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Pablo Ortiz
- Departamento de Química Orgánica I, Centro de Investigación y Estudios Avanzados "Lucio Lascaray"- Facultad de Farmacia, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - José M Ezpeleta
- Departamento de Química Orgánica I, Centro de Investigación y Estudios Avanzados "Lucio Lascaray"- Facultad de Farmacia, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Francisco Palacios
- Departamento de Química Orgánica I, Centro de Investigación y Estudios Avanzados "Lucio Lascaray"- Facultad de Farmacia, University of the Basque Country, UPV/EHU Paseo de la Universidad 7, 01006 Vitoria, Spain
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39
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Chiral bifunctional squaramide catalyzed asymmetric Michael addition of ethyl α-nitroacetate to β,γ-unsaturated α-ketoesters. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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He HX, Du DM. Organocatalytic Enantioselective Strecker Reaction of Imines Containing a Thiazole Moiety by Using a Cinchona-Based Squaramide Catalyst. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402764] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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41
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Wang X, Cui S, Li Z, Kan S, Zhang Q, Zhao C, Wu H, Liu J, Wu W, Guo K. A base–conjugate-acid pair for living/controlled ring-opening polymerization of trimethylene carbonate through hydrogen-bonding bifunctional synergistic catalysis. Polym Chem 2014. [DOI: 10.1039/c4py00773e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Auvil TJ, Schafer AG, Mattson AE. Design Strategies for Enhanced Hydrogen-Bond Donor Catalysts. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400035] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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43
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Wang YH, Liu YL, Cao ZY, Zhou J. An Organocatalytic Addition of Nitromethane to Activated Ketimines. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201300289] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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Zhang S, Xu K, Guo F, Hu Y, Zha Z, Wang Z. Enantioselective Copper(I/II)-Catalyzed Conjugate Addition of Nitro Esters to β,γ-Unsaturated α-Ketoesters. Chemistry 2014; 20:979-82. [DOI: 10.1002/chem.201303512] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Indexed: 11/08/2022]
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45
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46
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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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47
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Zhou M, Dong D, Zhu B, Geng H, Wang Y, Zhang X. Rhodium-Catalyzed Enantioselective Hydrogenation of β-Acylamino Nitroolefins: A New Approach to Chiral β-Amino Nitroalkanes. Org Lett 2013; 15:5524-7. [DOI: 10.1021/ol4026843] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ming Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Dejun Dong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Baolin Zhu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Huiling Geng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Yan Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, China, and Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
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48
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Jiang Y, Chen X, Hu XY, Shu C, Zhang YH, Zheng YS, Lian CX, Yuan WC, Zhang XM. Stereoselective Lewis Base-Catalyzed Asymmetric Hydrosilylation of α-Acetamido-β-enamino Esters: Straightforward Approach for the Construction of α,β-Diamino Acid Derivatives. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300184] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Fan W, Kong S, Cai Y, Wu G, Miao Z. Diastereo- and enantioselective nitro-Mannich reaction of α-substituted nitroacetates to N-phosphoryl imines catalyzed by cinchona alkaloid thiourea organocatalysts. Org Biomol Chem 2013; 11:3223-9. [PMID: 23584159 DOI: 10.1039/c3ob40335a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric nitro-Mannich reaction of N-phosphoryl imines with α-substituted nitroacetates was performed by using cinchona alkaloid thioureas as organocatalysts in toluene at -20 °C. The present method was highly tolerable to functionalized N-phosphoryl imines and provided a reliable synthetic route to obtain the corresponding β-nitro ethylphosphoramidates with adjacent quaternary and tertiary chiral centers in high yield (up to 86%) and high enantiostereoselectivity (up to 99% ee) and diastereoselectivity (up to 99 : 1, anti-selectivity).
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Affiliation(s)
- Weidong Fan
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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50
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He HX, Yang W, Du DM. Enantioselective Aza-Henry Reaction of Imines Bearing a Benzothiazole Moiety Catalyzed by aCinchona-Based Squaramide. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200957] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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