1
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Zhang W, Yu PC, Feng CY, Li CC. Asymmetric Total Synthesis of Pedrolide. J Am Chem Soc 2024; 146:2928-2932. [PMID: 38289153 DOI: 10.1021/jacs.3c14150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The asymmetric total synthesis of pedrolide (>200 mg) with an unprecedented [5-5-5-6-6-3] hexacyclic core (pedrolane) was achieved. Its unique bicyclo[2.2.1]heptane ring system was efficiently constructed via an enantioselective ene reaction of cyclopentadiene followed by a Wittig reaction, isomerization, and a diastereoselective intramolecular Diels-Alder reaction cascade. The highly oxygenated carane [6-3] ring system was synthesized via a ring-closing metathesis reaction followed by an unusual free carbene cyclopropanation. Furthermore, the 12 contiguous stereocenters of pedrolide were installed diastereoselectively.
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Affiliation(s)
- Wen Zhang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Peng-Cheng Yu
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chen-Yun Feng
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Bay Laboratory, Shenzhen 518132, China
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2
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Enantioselective Friedel-Crafts Reaction between Indoles and α,β-Unsaturated Aldehydes Catalyzed by Recyclable α,α-Diarylprolinol Derived Chiral Ionic Liquids. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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3
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Hilgers R, Yong Teng S, Briš A, Pereverzev AY, White P, Jansen JJ, Roithová J. Monitoring Reaction Intermediates to Predict Enantioselectivity Using Mass Spectrometry**. Angew Chem Int Ed Engl 2022; 61:e202205720. [PMID: 35561144 PMCID: PMC9544535 DOI: 10.1002/anie.202205720] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 11/18/2022]
Abstract
Enantioselective reactions are at the core of chemical synthesis. Their development mostly relies on prior knowledge, laborious product analysis and post‐rationalization by theoretical methods. Here, we introduce a simple and fast method to determine enantioselectivities based on mass spectrometry. The method is based on ion mobility separation of diastereomeric intermediates, formed from a chiral catalyst and prochiral reactants, and delayed reactant labeling experiments to link the mass spectra with the reaction kinetics in solution. The data provide rate constants along the reaction paths for the individual diastereomeric intermediates, revealing the origins of enantioselectivity. Using the derived kinetics, the enantioselectivity of the overall reaction can be predicted. Hence, this method can offer a rapid discovery and optimization of enantioselective reactions in the future. We illustrate the method for the addition of cyclopentadiene (CP) to an α,β‐unsaturated aldehyde catalyzed by a diarylprolinol silyl ether.
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Affiliation(s)
- Roelant Hilgers
- Institute for Molecules and Materials Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
- Laboratory of Food Chemistry Wageningen University & Research Bornse Weilanden 9 6708 WG Wageningen The Netherlands
| | - Sin Yong Teng
- Institute for Molecules and Materials Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Anamarija Briš
- Institute for Molecules and Materials Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Aleksandr Y. Pereverzev
- Institute for Molecules and Materials Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Paul White
- Institute for Molecules and Materials Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Jeroen J. Jansen
- Institute for Molecules and Materials Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Jana Roithová
- Institute for Molecules and Materials Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
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4
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Costa AM, Cascales V, Castro-Alvarez A, Vilarrasa J. Computational Study of the Stability of Pyrrolidine-Derived Iminium Ions: Exchange Equilibria between Iminium Ions and Carbonyl Compounds. ACS OMEGA 2022; 7:18247-18258. [PMID: 35694469 PMCID: PMC9178767 DOI: 10.1021/acsomega.1c07020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
The tendency of carbonyl compounds to form iminium ions by reaction with pyrrolidine or chiral pyrrolidine derivatives (in other words, the relative stability to hydrolysis of these iminium ions) has been computationally examined, mainly using the M06-2X/6-311+G(d,p) method. We have thus obtained the equilibrium positions for R-CH=O + CH2=CH-CH=N+R2* → R-CH=N+R2* + CH2=CH-CH=O reactions and for related exchanges. In these exchanges, there is a transfer of a secondary amine between two carbonyl compounds. Their relative energies may be used to predict which iminium species can be predominantly formed when two or more carbonyl groups are present in a reaction medium. In the catalytic Michael additions of nucleophiles to iminium ions arising from conjugated enals, dienals, and trienals, if the formation of the new Nu-C bond is favorable, the chances of amino-catalyzed reactions to efficiently proceed, with high conversions, depend on the calculated energy values for these exchange equilibria, where the iminium tetrafluoroborates of the adducts (final iminium intermediates) must be more prone to hydrolysis than the initial iminium tetrafluoroborates. The density functional theory (DFT) calculations indicate that the MacMillan catalysts and related oxazolidinones are especially suitable in this regard.
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5
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Hilgers R, Teng SY, Bris A, White P, Jansen J, Roithová J. Monitoring Reaction Intermediates to Predict Enantioselectivity Using Mass Spectrometry. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Roelant Hilgers
- Radboud University Institute for Molecules and Materials: Radboud Universiteit Institute for Molecules and Materials Department of Spectroscopy and Catalysis NETHERLANDS
| | - Sin Yong Teng
- Radboud University Institute for Molecules and Materials: Radboud Universiteit Institute for Molecules and Materials Department of Chemometrics NETHERLANDS
| | - Anamarija Bris
- Radboud University Institute for Molecules and Materials: Radboud Universiteit Institute for Molecules and Materials Department of Spectroscopy and Catalysis NETHERLANDS
| | - Paul White
- Radboud University Institute for Molecules and Materials: Radboud Universiteit Institute for Molecules and Materials Department of Spectroscopy and Catalysis NETHERLANDS
| | - Jeroen Jansen
- Radboud University Institute for Molecules and Materials: Radboud Universiteit Institute for Molecules and Materials Department of Chemometrics NETHERLANDS
| | - Jana Roithová
- Radboud University Department of Spectroscopy and Catalysis Heyendaalseweg 135 6525 AJ Nijmegen NETHERLANDS
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6
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Pyrrolidine‐Catalyzed Annulations of Quinone Monoacetals with Naphthols: Synthesis of 2‐Oxabicyclo[3.3.1]nonane Skeletons, Transformations and Reaction Mechanism. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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7
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Jessen NI, Bura M, Bertuzzi G, Jørgensen KA. Aminocatalytic [8+2] Cycloaddition Reactions toward Chiral Cyclazines. Angew Chem Int Ed Engl 2021; 60:18527-18531. [PMID: 34101936 DOI: 10.1002/anie.202106287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Indexed: 01/18/2023]
Abstract
An efficient and exceptionally stereoselective synthesis of chiral cycl[3.2.2]azines has been realized by means of the rational design and utilization of novel (E)-3-benzylidene-3H-pyrrolizines in iminium-ion-catalyzed [8+2] cycloaddition reactions. The presented protocol allows for the incorporation of diverse enals, including cinnamaldehydes, enolizable aldehydes, and substrates of extended conjugation. The obtained products contain both an electron-rich alkenyl pyrrole moiety and an electron-deficient carbaldehyde substituent, and both moieties can undergo selective transformations with retention of the stereochemical information established in the [8+2] cycloaddition.
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Affiliation(s)
| | - Maksimilian Bura
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Giulio Bertuzzi
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
| | - Karl Anker Jørgensen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark
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8
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Jessen NI, Bura M, Bertuzzi G, Jørgensen KA. Aminocatalytic [8+2] Cycloaddition Reactions toward Chiral Cyclazines. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106287] [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)
| | - Maksimilian Bura
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Giulio Bertuzzi
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Karl Anker Jørgensen
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
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9
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Majee D, Goud SB, Guin S, Rathor SS, Patel AK, Samanta S. Reversal Reactivity of β‐Alkylnitroalkenes as 1,3‐Binucleophiles: Application to Nitroarenes using Organocatalysis. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Debashis Majee
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - S Banuprakash Goud
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - Soumitra Guin
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - Shikha S. Rathor
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - Ashvani K. Patel
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - Sampak Samanta
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
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10
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Koshino S, Hattori S, Hasegawa S, Haraguchi N, Yamamoto T, Suginome M, Uozumi Y, Hayashi Y. Amphiphilic Immobilized Diphenylprolinol Alkyl Ether Catalyst on PS-PEG Resin. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Seitaro Koshino
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Shusuke Hattori
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Shota Hasegawa
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Naoki Haraguchi
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, Toyohashi, Aichi 441-8580, Japan
| | - Takeshi Yamamoto
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yasuhiro Uozumi
- Institute for Molecular Science (IMS), Myodaiji, Okazaki, Aichi 444-8787, Japan
| | - Yujiro Hayashi
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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11
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Perez JDM, Puigcerver J, Orlando T, Pastor A, Martins MAP, Alajarin M, Martinez-Cuezva A, Berna J. Mechanical bonding activation in rotaxane-based organocatalysts. Org Chem Front 2021. [DOI: 10.1039/d1qo00789k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Interlocked organocatalysts show enhanced catalytic performance when compared with their non-interlocked threads.The ring cooperatively activates the substrates, facilitating the formation and stabilization of catalytically active intermediates.
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Affiliation(s)
- Jesus de Maria Perez
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
| | - Julio Puigcerver
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
| | - Tainara Orlando
- Núcleo de Química de Heterociclos (NUQUIMHE)
- Departamento de Química
- Universidade Federal de Santa Maria
- 97105-900 Santa Maria-RS
- Brazil
| | - Aurelia Pastor
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
| | - Marcos A. P. Martins
- Núcleo de Química de Heterociclos (NUQUIMHE)
- Departamento de Química
- Universidade Federal de Santa Maria
- 97105-900 Santa Maria-RS
- Brazil
| | - Mateo Alajarin
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
| | - Alberto Martinez-Cuezva
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
| | - Jose Berna
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
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12
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Zhang M, Gong Y, Zhou W, Zhou Y, Liu XL. Recent advances of chromone-based reactants in the catalytic asymmetric domino annulation reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo00269d] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chiral polycyclic chromanones are important heterocyclic frameworks that constitute the core structures of many natural products and bioactive molecules.
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Affiliation(s)
- Min Zhang
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Yi Gong
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Wei Zhou
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
| | - Xiong-Li Liu
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
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13
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14
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Umekubo N, Terunuma T, Kwon E, Hayashi Y. Evidence for an enolate mechanism in the asymmetric Michael reaction of α,β-unsaturated aldehydes and ketones via a hybrid system of two secondary amine catalysts. Chem Sci 2020; 11:11293-11297. [PMID: 34094371 PMCID: PMC8162273 DOI: 10.1039/d0sc03359f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The key nucleophile was found to be neither an enamine nor an enol, but an enolate in the direct Michael reaction of α,β-unsaturated aldehydes and non-activated ketones catalyzed by two amine catalysts namely diphenylprolinol silyl ether and pyrrolidine. This is a rare example of an enolate from a ketone serving as a key intermediate in the asymmetric organocatalytic reaction involving secondary amine catalysts because the ketone enolates are generally generated using a strong base, and the enamine is a common nucleophile in this type of reaction. The key nucleophile was found to be neither an enamine nor an enol, but an enolate in the direct Michael reaction of α,β-unsaturated aldehydes and non-activated ketones catalyzed by two amine catalysts namely diphenylprolinol silyl ether and pyrrolidine.![]()
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Affiliation(s)
- Nariyoshi Umekubo
- Department of Chemistry, Graduate School of Science, Tohoku University 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Takahiro Terunuma
- Department of Chemistry, Graduate School of Science, Tohoku University 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University Sendai 980-8578 Japan
| | - Yujiro Hayashi
- Department of Chemistry, Graduate School of Science, Tohoku University 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
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15
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Hayashi Y. Domino and one-pot syntheses of biologically active compounds using diphenylprolinol silyl ether. PHYSICAL SCIENCES REVIEWS 2020. [DOI: 10.1515/psr-2018-0088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe successful application of diphenylprolinol silyl ether, which is one of the widely used organocatalysts, to the synthesis of natural products and drugs, is described mostly focusing on the author’s results. The molecules that are explained in this paper are baclofen, telcagepant, oseltamivir, ABT-341, prostaglandins, estradiol, horsfiline and coerulescine.
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Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai980–8578, Japan
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16
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Vega-Peñaloza A, Paria S, Bonchio M, Dell’Amico L, Companyó X. Profiling the Privileges of Pyrrolidine-Based Catalysts in Asymmetric Synthesis: From Polar to Light-Driven Radical Chemistry. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01556] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alberto Vega-Peñaloza
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Suva Paria
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Marcella Bonchio
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Luca Dell’Amico
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Xavier Companyó
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
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17
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Džambaski Z, Tzaras D, Lee S, Kokotos CG, Bondzic BP. Enantioselective Organocatalytic Enamine C−H Oxidation/Diels‐ Alder Reaction. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zdravko Džambaski
- Center for Chemistry, ICTM instituteUniversity of Belgrade Njegoseva 12 11 000 Belgrade Serbia
| | - Dimitrios‐Ioannis Tzaras
- Laboratory of Organic Chemistry, Departmentof ChemistryNational and Kapodistrian University of Athens, Panepistimiopolis 15771 Athens Greece
| | - Sunggi Lee
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Christoforos G. Kokotos
- Laboratory of Organic Chemistry, Departmentof ChemistryNational and Kapodistrian University of Athens, Panepistimiopolis 15771 Athens Greece
| | - Bojan P. Bondzic
- Center for Chemistry, ICTM instituteUniversity of Belgrade Njegoseva 12 11 000 Belgrade Serbia
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18
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Zhang WH, Zhou YY, He XW, Gong Y, Liu XL, Zhou Y. An asymmetric iminium ion catalysis-enabled cascade cycloaddition reaction of chromone-oxindole synthons with enals: construction of a spirooxindole–hexahydroxanthone framework. Org Biomol Chem 2019; 17:8369-8373. [DOI: 10.1039/c9ob01670h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report the first asymmetric iminium ion catalysis-enabled cascade cycloaddition reaction of bifunctional chromone-oxindole synthons and α,β-unsaturated aldehydes.
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Affiliation(s)
- Wen-Hui Zhang
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Yan-you Zhou
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Xue-Wen He
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Yi Gong
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Xiong-Li Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences
- Guizhou University of Traditional Chinese Medicine
- Guiyang
- P. R. China
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19
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Poulsen PH, Li Y, Lauridsen VH, Jørgensen DKB, Palazzo TA, Meazza M, Jørgensen KA. Organocatalytic Formation of Chiral Trisubstituted Allenes and Chiral Furan Derivatives. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806238] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Yang Li
- Department of ChemistryAarhus University 8000 DK- Aarhus C Denmark
| | | | | | | | - Marta Meazza
- Department of ChemistryAarhus University 8000 DK- Aarhus C Denmark
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20
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Poulsen PH, Li Y, Lauridsen VH, Jørgensen DKB, Palazzo TA, Meazza M, Jørgensen KA. Organocatalytic Formation of Chiral Trisubstituted Allenes and Chiral Furan Derivatives. Angew Chem Int Ed Engl 2018; 57:10661-10665. [DOI: 10.1002/anie.201806238] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 06/15/2018] [Indexed: 01/17/2023]
Affiliation(s)
| | - Yang Li
- Department of ChemistryAarhus University 8000 DK- Aarhus C Denmark
| | | | | | | | - Marta Meazza
- Department of ChemistryAarhus University 8000 DK- Aarhus C Denmark
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21
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Izzo JA, Poulsen PH, Intrator JA, Jørgensen KA, Vetticatt MJ. Isotope Effects Reveal an Alternative Mechanism for "Iminium-Ion" Catalysis. J Am Chem Soc 2018; 140:8396-8400. [PMID: 29940119 PMCID: PMC6238210 DOI: 10.1021/jacs.8b04856] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel mechanism for the epoxidation of enals with hydrogen peroxide catalyzed by diarylprolinol silyl ether supported by experimental 13C kinetic isotope effects (KIEs) and density functional theory calculations is presented. Normal 13C KIEs, measured on both the carbonyl- and β-carbon atoms of the enal, suggest participation of both carbon atoms in the rate-determining step. Calculations show that the widely accepted iminium-ion mechanism does not account for this experimental observation. A syn-SN2' substitution mechanism, which avoids formation of a discrete iminium-ion intermediate, emerges as the most likely mechanism based on agreement between experimental and predicted KIEs.
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Affiliation(s)
- Joseph A. Izzo
- Department of Chemistry, Binghamton University, Binghamton, New York 13902, United States
| | | | - Jeremy A. Intrator
- Department of Chemistry, Binghamton University, Binghamton, New York 13902, United States
| | | | - Mathew J. Vetticatt
- Department of Chemistry, Binghamton University, Binghamton, New York 13902, United States
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22
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Jafari E, Chauhan P, Kumar M, Chen XY, Li S, von Essen C, Rissanen K, Enders D. Organocatalytic Asymmetric Synthesis of Trifluoromethylated Tetrahydrocarbazoles by a Vinylogous Michael/Aldol Formal [4+2] Annulation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ehsan Jafari
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Pankaj Chauhan
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- Department of Chemistry; Indian Institute of Technology Jammu Jagti; NH-44 181221 Nagrota Jammu, (J & K)- India
| | - Mukesh Kumar
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Xiang-Yu Chen
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Sun Li
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Carolina von Essen
- Department of Chemistry; Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Kari Rissanen
- Department of Chemistry; Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Dieter Enders
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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23
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Hayashi Y, Umekubo N. Direct Asymmetric Michael Reaction of α,β-Unsaturated Aldehydes and Ketones Catalyzed by Two Secondary Amine Catalysts. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201710085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba Aoba-ku Sendai 980-8578 Japan
| | - Nariyoshi Umekubo
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba Aoba-ku Sendai 980-8578 Japan
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24
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Hayashi Y, Umekubo N. Direct Asymmetric Michael Reaction of α,β-Unsaturated Aldehydes and Ketones Catalyzed by Two Secondary Amine Catalysts. Angew Chem Int Ed Engl 2018; 57:1958-1962. [DOI: 10.1002/anie.201710085] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Indexed: 01/30/2023]
Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba Aoba-ku Sendai 980-8578 Japan
| | - Nariyoshi Umekubo
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba Aoba-ku Sendai 980-8578 Japan
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25
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Juste-Navarro V, Prieto L, Delso I, Manzano R, Tejero T, Reyes E, Vicario JL, Merino P. A Case Study of Thiourea-Assisted Iminium Formation by Hydroxyl Anion Binding: Kinetic, Spectroscopic and Computational Evidences. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700986] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Veronica Juste-Navarro
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); Universidad de Zaragoza-CSIC; 5009 Zaragoza Spain
| | - Liher Prieto
- Department of Organic Chemistry II; University of the Basque Country (UPV/EHU); P.O. Box 644 48080 Bilbao Spain
| | - Ignacio Delso
- Servicio de RMN, Centro de Química y Materiales de Aragón; Universidad de Zaragoza-CSIC; 5009 Zaragoza Spain
| | - Rubén Manzano
- Department of Organic Chemistry II; University of the Basque Country (UPV/EHU); P.O. Box 644 48080 Bilbao Spain
| | - Tomas Tejero
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); Universidad de Zaragoza-CSIC; 5009 Zaragoza Spain
| | - Efraim Reyes
- Department of Organic Chemistry II; University of the Basque Country (UPV/EHU); P.O. Box 644 48080 Bilbao Spain
| | - Jose L. Vicario
- Department of Organic Chemistry II; University of the Basque Country (UPV/EHU); P.O. Box 644 48080 Bilbao Spain
| | - Pedro Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI); Universidad de Zaragoza-CSIC; 5009 Zaragoza Spain
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26
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Companyó X, Burés J. Distribution of Catalytic Species as an Indicator To Overcome Reproducibility Problems. J Am Chem Soc 2017; 139:8432-8435. [PMID: 28613855 DOI: 10.1021/jacs.7b05045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Irreproducibility is a common issue in catalysis. The ordinary way to minimize it is by ensuring enhanced control over the factors that affect the reaction. When control is insufficient, some parameters can be used as indicators of the reaction performance. Herein we describe the use of the distribution of catalytic species as an indicator to map, track, and fine-tune the performance of catalytic reactions. This indicator is very sensitive and presents a quick response to variations in the reaction conditions. We have applied this new strategy to the conjugate addition of C-nucleophiles to enals via iminium intermediates, consistently achieving maximum turnover frequencies (TOF) regardless of the quality of the starting materials used. In addition, the present method has allowed us to efficiently reduce the catalyst loading to as little as 0.1 mol %, the lowest one described for this kind of reaction.
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Affiliation(s)
- Xavier Companyó
- Department of Chemistry, Imperial College London , Exhibition Road, South Kensington, SW7 2AZ London, U.K.,Department of Chemical Sciences, University of Padua , via Marzolo 1, 35131 Padua, Italy
| | - Jordi Burés
- Department of Chemistry, Imperial College London , Exhibition Road, South Kensington, SW7 2AZ London, U.K.,The University of Manchester, School of Chemistry , Oxford Road, M13 9PL Manchester, U.K
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27
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Feng J, Li X, Cheng JP. Enantioselective Organocatalyzed Vinylogous Michael Reactions of 3-Alkylidene Oxindoles with Enals. J Org Chem 2017; 82:1412-1419. [DOI: 10.1021/acs.joc.6b02582] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junjun Feng
- State Key Laboratory of Elemento-Organic Chemistry, Department of
Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of
Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
- Collaborative
Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People’s Republic of China
| | - Jin-Pei Cheng
- State Key Laboratory of Elemento-Organic Chemistry, Department of
Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
- Collaborative
Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People’s Republic of China
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28
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Leth LA, Glaus F, Meazza M, Fu L, Thøgersen MK, Bitsch EA, Jørgensen KA. Decarboxylative [4+2] Cycloaddition by Synergistic Palladium and Organocatalysis. Angew Chem Int Ed Engl 2016; 55:15272-15276. [PMID: 27897423 DOI: 10.1002/anie.201607788] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Indexed: 01/16/2023]
Abstract
A novel reaction based on synergistic catalysis, combining palladium- and organocatalysis has been developed. The palladium catalyst activates vinyl benzoxazinanones via a decarboxylation to undergo a [4+2] cycloaddition with iminium-ion activated α,β-unsaturated aldehydes. The reaction is demonstrated to proceed for a number of combinations of vinyl benzoxazinanones reacting with α,β-unsaturated aldehydes, providing highly substituted vinyl tetrahydroquinolines in good to high yields, and excellent enantio- and diastereoselectivities (>98 % ee and >20:1 d.r.). The palladium catalyst used in the synergistic catalysis can be re-used in a one-pot sequential coupling reaction with an aromatic boronic acid forming the coupling product in 95 % yield, >20:1 d.r. and 99 % ee.
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Affiliation(s)
- Lars A Leth
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - Florian Glaus
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - Marta Meazza
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - Liang Fu
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | | | - Emma A Bitsch
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
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29
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Leth LA, Glaus F, Meazza M, Fu L, Thøgersen MK, Bitsch EA, Jørgensen KA. Decarboxylative [4+2] Cycloaddition by Synergistic Palladium and Organocatalysis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607788] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lars A. Leth
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | - Florian Glaus
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | - Marta Meazza
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | - Liang Fu
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | | | - Emma A. Bitsch
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
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30
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Roudier M, Constantieux T, Quintard A, Rodriguez J. Triple Iron/Copper/Iminium Activation for the Efficient Redox Neutral Catalytic Enantioselective Functionalization of Allylic Alcohols. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01102] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Mylène Roudier
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
| | | | - Adrien Quintard
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
| | - Jean Rodriguez
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
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31
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Affiliation(s)
- Yujiro Hayashi
- Department
of Chemistry,
Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Shin Ogasawara
- Department
of Chemistry,
Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba-ku, Sendai, Miyagi 980-8578, Japan
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32
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Hayashi Y, Nakamura D, Yasui Y, Iwasaki K, Chiba H. Asymmetric Aldol Reaction of Dichloroacetaldehyde Catalyzed by Diarylprolinol. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501111] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Poulsen PH, Vergura S, Monleón A, Jørgensen DKB, Jørgensen KA. Controlling Asymmetric Remote and Cascade 1,3-Dipolar Cycloaddition Reactions by Organocatalysis. J Am Chem Soc 2016; 138:6412-5. [DOI: 10.1021/jacs.6b03546] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Stefania Vergura
- Department of Chemistry, Aarhus University, DK-8000 Aarhus
C, Denmark
| | - Alicia Monleón
- Department of Chemistry, Aarhus University, DK-8000 Aarhus
C, Denmark
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34
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Hayashi Y, Mukaiyama T, Benohoud M, Gupta NR, Ono T, Toda S. (16) O/(18) O Exchange of Aldehydes and Ketones caused by H2 (18) O in the Mechanistic Investigation of Organocatalyzed Michael, Mannich, and Aldol Reactions. Chemistry 2016; 22:5868-72. [PMID: 26841358 DOI: 10.1002/chem.201600280] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/07/2022]
Abstract
Organocatalyzed Michael, Mannich, and aldol reactions of aldehydes or ketones, as nucleophiles, have triggered several discussions regarding their reaction mechanism. H2 (18) O has been utilized to determine if the reaction proceeds through an enamine or enol mechanism by monitoring the ratio of (18) O incorporated into the final product. In this communication, we describe the risk of H2 (18) O as an evaluation tool for this mechanistic investigation. We have demonstrated that exchange of (16) O/(18) O occurs in the aldehyde or ketone starting material, caused by the presence of H2 (18) O and amine catalysts, before the Michael, Mannich, and aldol reactions proceed. Because the newly generated (18) O starting aldehydes or ketones and (16) O water affect the incorporation ratio of (18) O in the final product, the use of H2 (18) O would not be appropriate to distinguish the mechanism of these organocatalyzed reactions.
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Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba-ku, Sendai, 980-8578, Japan. .,Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.
| | - Takasuke Mukaiyama
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba-ku, Sendai, 980-8578, Japan
| | - Meryem Benohoud
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Nishant R Gupta
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Tsuyoshi Ono
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba-ku, Sendai, 980-8578, Japan
| | - Shunsuke Toda
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba-ku, Sendai, 980-8578, Japan
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35
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Luo H, Yan X, Chen L, Li Y, Liu N, Yin G. Enantioselective Catalytic Domino Aza-Michael-Henry Reactions: One-Pot Asymmetric Synthesis of 3-Nitro-1,2-dihydroquinolines via Iminium Activation. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501618] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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36
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Abstract
The one-pot synthesis of a target molecule in the same reaction vessel is widely considered to be an efficient approach in synthetic organic chemistry. In this review, the characteristics and limitations of various one-pot syntheses of biologically active molecules are explained, primarily involving organocatalytic methods as key tactics. Besides catalysis, the pot-economy concepts presented herein are also applicable to organometallic and organic reaction methods in general.
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Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry , Graduate School of Science , Tohoku University , 6-3 Aramaki-Aza Aoba, Aoba-ku , Sendai 980-8578 , Japan . ; ; Tel: +81-22-795-3554
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37
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Ballesteros A, Morán-Poladura P, González JM. Gold(i) operational in synergistic catalysis for the intermolecular α-addition reaction of aldehydes across allenamides. Chem Commun (Camb) 2016; 52:2905-8. [DOI: 10.1039/c5cc09529h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A synergistic approach to the catalytic intermolecular α-addition of aldehydes across allenamides using gold(i) and proline derivatives.
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Affiliation(s)
- Alberto Ballesteros
- Departamento de Química Orgánica e Inorgánica
- Instituto Universitario de Química Organometálica “Enrique Moles”
- 33006 Oviedo
- Spain
| | - Pablo Morán-Poladura
- Departamento de Química Orgánica e Inorgánica
- Instituto Universitario de Química Organometálica “Enrique Moles”
- 33006 Oviedo
- Spain
| | - Jose M. González
- Departamento de Química Orgánica e Inorgánica
- Instituto Universitario de Química Organometálica “Enrique Moles”
- 33006 Oviedo
- Spain
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38
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Claraz A, Sahoo G, Berta D, Madarász Á, Pápai I, Pihko PM. A Catalyst Designed for the Enantioselective Construction of Methyl- and Alkyl-Substituted Tertiary Stereocenters. Angew Chem Int Ed Engl 2015; 55:669-73. [DOI: 10.1002/anie.201509302] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Indexed: 12/26/2022]
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39
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Claraz A, Sahoo G, Berta D, Madarász Á, Pápai I, Pihko PM. A Catalyst Designed for the Enantioselective Construction of Methyl- and Alkyl-Substituted Tertiary Stereocenters. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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