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Zhang K, Carmo C, Deiana L, Grape ES, Inge AK, Córdova A. Sugar-Assisted Kinetic Resolutions in Metal/Chiral Amine Co-Catalyzed α-Allylations and [4+2] Cycloadditions: Highly Enantioselective Synthesis of Sugar and Chromane Derivatives. Chemistry 2023; 29:e202301725. [PMID: 37402648 DOI: 10.1002/chem.202301725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/04/2023] [Accepted: 07/04/2023] [Indexed: 07/06/2023]
Abstract
Functionalized triose-, furanose and chromane-derivatives were synthesized by the titled reactions. The sugar-assisted kinetic resolution/C-C bond-forming cascade processes generate a functionalized sugar derivative with a quaternary stereocenter in a highly enantioselective fashion (up to >99 % ee) by using a simple combination of metal and chiral amine co-catalysts. Notably, the interplay between the chiral sugar substrate and the chiral amino acid derivative allowed for the construction of a functionalized sugar product with high enantioselectivity (up to 99 %) also when using a combination of racemic amine catalyst (0 % ee) and metal catalyst.
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Affiliation(s)
- Kaiheng Zhang
- Department of Natural Sciences, Mid Sweden University, Holmgatan 10, 85179, Sundsvall, Sweden
| | - Chrislaura Carmo
- Department of Natural Sciences, Mid Sweden University, Holmgatan 10, 85179, Sundsvall, Sweden
| | - Luca Deiana
- Department of Natural Sciences, Mid Sweden University, Holmgatan 10, 85179, Sundsvall, Sweden
| | - Erik Svensson Grape
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, 10 691, Stockholm, Sweden
| | - A Ken Inge
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, 10 691, Stockholm, Sweden
| | - Armando Córdova
- Department of Natural Sciences, Mid Sweden University, Holmgatan 10, 85179, Sundsvall, Sweden
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2
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Costa AM, Castro-Alvarez A, Vilarrasa J, Fillot D. Computational Comparison of the Stability of Iminium Ions and Salts from Enals and Pyrrolidine Derivatives (Aminocatalysts). European J Org Chem 2022. [DOI: 10.1002/ejoc.202200627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anna M. Costa
- Universitat de Barcelona Facultat de Química: Universitat de Barcelona Facultat de Quimica Organic Chemistry Section Av. Diagonal 645 08028 Barcelona SPAIN
| | - Alejandro Castro-Alvarez
- Universidad de la Frontera Facultad de Medicina Ciencias Preclínicas Av. Alemania 0458 4810296 Temuco CHILE
| | - Jaume Vilarrasa
- Universitat de Barcelona Organic Chemistry Section, Fac. Quimica Av. Diagonal 645 08028 Barcelona SPAIN
| | - Daniel Fillot
- Universidad de Barcelona Facultad de Química: Universitat de Barcelona Facultat de Quimica Organic Chemistry Section (Dep. Quim. Inorg. i Org.) Diagonal 645 08028 Barcelona SPAIN
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3
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Li Y, Zhang L, Luo S. Bond Energies of Enamines. ACS OMEGA 2022; 7:6354-6374. [PMID: 35224397 PMCID: PMC8867489 DOI: 10.1021/acsomega.1c06945] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/25/2022] [Indexed: 05/11/2023]
Abstract
Energetics of reactive intermediates underlies their reactivity. The availability of these data provides a rational basis for understanding and predicting a chemical reaction. We reported here a comprehensive computational study on the energetics of enamine intermediates that are fundamental in carbonyl chemistry. Accurate density functional theory (DFT) calculations were performed to determine the bond energies of enamines and their derived radical intermediates. These efforts led to the compilation of a database of enamine energetics including a thermodynamic index such as free-energy stability, bond dissociation energy (BDE), and acid dissociation constant (pK a) as well as a kinetic index such as nucleophilicity and electrophilicity. These data were validated by relating to experimentally determined parameters and their relevance and utility were discussed in the context of modern enamine catalysis. It was found that pK a values of enamine radical cations correlated well with redox potentials of their parent enamines, the former could be used to rationalize the proton-transfer behavior of enamine radical cations. An analysis of the BDE of enamine radical cations indicated that these species underwent facile β-C-H hydrogen transfer, in line with the known oxidative enamine catalysis. The enamine energetics offers the possibility of a systematic evaluation of the reactivities of enamines and related radicals, which would provide useful guidance in exploring new enamine transformations.
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4
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Cascales V, Carneros H, Castro-Alvarez A, Costa AM, Vilarrasa J. Amino-Catalyzed Reactions of Aldehydes with Chiral Nitroalkenes. Org Lett 2021; 23:651-655. [PMID: 33428407 DOI: 10.1021/acs.orglett.0c03609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chiral nitroalkenes are used for the first time in Michael additions of aldehydes, catalyzed by pyrrolidine derivatives. They yield the same major stereoisomer with either (S)-proline or (R)-proline, but this asymmetric induction does not overcome the effect of sterically more congested catalysts. Nitrocyclobutane intermediates are often formed, which are more stable than those from (E)-1-nitro-2-phenylethene. The cyclobutanes and final products were characterized by 2D NMR and chemical correlations.
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Affiliation(s)
- Víctor Cascales
- Organic Chemistry, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Héctor Carneros
- Organic Chemistry, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Alejandro Castro-Alvarez
- Organic Chemistry, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Anna M Costa
- Organic Chemistry, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Jaume Vilarrasa
- Organic Chemistry, Facultat de Química, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Catalonia, Spain
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5
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Rokey SN, Simanis JA, Law CM, Pohani S, Willens Behrends S, Bulandr JJ, Ferrence GM, Goodell JR, Andrew Mitchell T. Intramolecular asymmetric oxidopyrylium-based [5 + 2] cycloadditions. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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6
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Lu Z, Hammond GB, Xu B. Revisiting the role of acids and hydrogen bond acceptors in enamine formation. Org Biomol Chem 2020; 18:6849-6852. [PMID: 32852003 DOI: 10.1039/d0ob01579b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A systematic investigation into the effects of acids and hydrogen bond acceptors on the reaction rates and equilibria of enamine formation is reported. Acids can accelerate the reaction but do not change the reaction equilibria. In comparison, hydrogen bond acceptors facilitate the enamine formation via their strong hydrogen bonding interaction with the water generated in the reaction.
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Affiliation(s)
- Zhichao Lu
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, USA.
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7
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Li L, Li Y, Fu N, Zhang L, Luo S. Catalytic Asymmetric Electrochemical α‐Arylation of Cyclic β‐Ketocarbonyls with Anodic Benzyne Intermediates. Angew Chem Int Ed Engl 2020; 59:14347-14351. [DOI: 10.1002/anie.202006016] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Longji Li
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yao Li
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Niankai Fu
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Long Zhang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Sanzhong Luo
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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8
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Li L, Li Y, Fu N, Zhang L, Luo S. Catalytic Asymmetric Electrochemical α‐Arylation of Cyclic β‐Ketocarbonyls with Anodic Benzyne Intermediates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Longji Li
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yao Li
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Niankai Fu
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Long Zhang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Sanzhong Luo
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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9
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Husch T, Seebach D, Beck AK, Reiher M. Rigorous Conformational Analysis of Pyrrolidine Enamines with Relevance to Organocatalysis. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700182] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Tamara Husch
- Laboratorium für Physikalische Chemie ETH Zürich Vladimir‐Prelog‐Weg 3 8093 Zürich Switzerland
| | - Dieter Seebach
- Laboratorium für Organische Chemie ETH Zürich Vladimir‐Prelog‐Weg 2 8093 Zürich Switzerland
| | - Albert K. Beck
- Laboratorium für Organische Chemie ETH Zürich Vladimir‐Prelog‐Weg 2 8093 Zürich Switzerland
| | - Markus Reiher
- Laboratorium für Physikalische Chemie ETH Zürich Vladimir‐Prelog‐Weg 3 8093 Zürich Switzerland
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10
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Zhang Y, Xie S, Yan M, Ramström O. Dynamic Covalent Chemistry of Aldehyde Enamines: Bi III - and Sc III -Catalysis of Amine-Enamine Exchange. Chemistry 2017; 23:11908-11912. [PMID: 28722305 PMCID: PMC5656824 DOI: 10.1002/chem.201702363] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Indexed: 01/09/2023]
Abstract
The dynamic exchange of enamines from secondary amines and enolizable aldehydes has been demonstrated in organic solvents. The enamine exchange with amines was efficiently catalyzed by Bi(OTf)3 and Sc(OTf)3 (2 mol %) and the equilibria (60 mm) could be attained within hours at room temperature. The formed dynamic covalent systems displayed high stabilities in basic environment with <2 % by-product formation within one week after complete equilibration. This study expands the scope of dynamic C-N bonds from imine chemistry to enamines, enabling further dynamic methodologies in exploration of this important class of structures in systems chemistry.
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Affiliation(s)
- Yang Zhang
- Department of ChemistryKTH-Royal Institute of TechnologyTeknikringen 3610044StockholmSweden
| | - Sheng Xie
- Department of ChemistryKTH-Royal Institute of TechnologyTeknikringen 3610044StockholmSweden
| | - Mingdi Yan
- Department of ChemistryKTH-Royal Institute of TechnologyTeknikringen 3610044StockholmSweden
- Department of ChemistryUniversity of Massachusetts Lowell1 University Ave.LowellMA01854USA
| | - Olof Ramström
- Department of ChemistryKTH-Royal Institute of TechnologyTeknikringen 3610044StockholmSweden
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11
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Łągiewka B, Albrecht Ł. Studies on the Formation of Dienamine and Trienamine Intermediates by 1
H NMR Spectroscopy. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600616] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bartosz Łągiewka
- Institute of Organic Chemistry, Department of Chemistry; Lodz University of Technology; Zeromskiego 116 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry, Department of Chemistry; Lodz University of Technology; Zeromskiego 116 90-924 Łódź Poland
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12
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Castro-Alvarez A, Carneros H, Sánchez D, Vilarrasa J. Importance of the Electron Correlation and Dispersion Corrections in Calculations Involving Enamines, Hemiaminals, and Aminals. Comparison of B3LYP, M06-2X, MP2, and CCSD Results with Experimental Data. J Org Chem 2015; 80:11977-85. [PMID: 26556606 DOI: 10.1021/acs.joc.5b01814] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
While B3LYP, M06-2X, and MP2 calculations predict the ΔG° values for exchange equilibria between enamines and ketones with similar acceptable accuracy, the M06-2X/6-311+G(d,p) and MP2/6-311+G(d,p) methods are required for enamine formation reactions (for example, for enamine 5a, arising from 3-methylbutanal and pyrrolidine). Stronger disagreement was observed when calculated energies of hemiaminals (N,O-acetals) and aminals (N,N-acetals) were compared with experimental equilibrium constants, which are reported here for the first time. Although it is known that the B3LYP method does not provide a good description of the London dispersion forces, while M06-2X and MP2 may overestimate them, it is shown here how large the gaps are and that at least single-point calculations at the CCSD(T)/6-31+G(d) level should be used for these reaction intermediates; CCSD(T)/6-31+G(d) and CCSD(T)/6-311+G(d,p) calculations afford ΔG° values in some cases quite close to MP2/6-311+G(d,p) while in others closer to M06-2X/6-311+G(d,p). The effect of solvents is similarly predicted by the SMD, CPCM, and IEFPCM approaches (with energy differences below 1 kcal/mol).
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Affiliation(s)
- Alejandro Castro-Alvarez
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona , Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Héctor Carneros
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona , Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Dani Sánchez
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona , Diagonal 645, 08028 Barcelona, Catalonia, Spain
| | - Jaume Vilarrasa
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona , Diagonal 645, 08028 Barcelona, Catalonia, Spain
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13
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Gotoh H, Uchimaru T, Hayashi Y. Two Reaction Mechanisms via Iminium Ion Intermediates: The Different Reactivities of Diphenylprolinol Silyl Ether and Trifluoromethyl-Substituted Diarylprolinol Silyl Ether. Chemistry 2015; 21:12337-46. [DOI: 10.1002/chem.201500326] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Indexed: 11/09/2022]
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14
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Erdmann H, An F, Mayer P, Ofial AR, Lakhdar S, Mayr H. Structures and Reactivities of 2-Trityl- and 2-(Triphenylsilyl)pyrrolidine-Derived Enamines: Evidence for Negative Hyperconjugation with the Trityl Group. J Am Chem Soc 2014; 136:14263-9. [DOI: 10.1021/ja508065e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hannes Erdmann
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
| | - Feng An
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
| | - Peter Mayer
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
| | - Armin R. Ofial
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
| | - Sami Lakhdar
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
- Laboratoire
de Chimie Moléculaire et Thio-organique, UMR CNRS 6507, 6 Boulevard
Maréchal Juin, 14050 Caen, France
| | - Herbert Mayr
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
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