1
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Spieß P, Sirvent A, Tiefenbrunner I, Sargueil J, Fernandes AJ, Arroyo‐Bondía A, Meyrelles R, Just D, Prado‐Roller A, Shaaban S, Kaiser D, Maulide N. Nms-Amides: An Amine Protecting Group with Unique Stability and Selectivity. Chemistry 2023; 29:e202301312. [PMID: 37283481 PMCID: PMC10946766 DOI: 10.1002/chem.202301312] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Indexed: 06/08/2023]
Abstract
p-Toluenesulfonyl (Tosyl) and nitrobenzenesulfonyl (Nosyl) are two of the most common sulfonyl protecting groups for amines in contemporary organic synthesis. While p-toluenesulfonamides are known for their high stability/robustness, their use in multistep synthesis is plagued by difficult removal. Nitrobenzenesulfonamides, on the other hand, are easily cleaved but display limited stability to various reaction conditions. In an effort to resolve this predicament, we herein present a new sulfonamide protecting group, which we term Nms. Initially developed through in silico studies, Nms-amides overcome these previous limitations and leave no room for compromise. We have investigated the incorporation, robustness and cleavability of this group and found it to be superior to traditional sulfonamide protecting groups in a broad range of case studies.
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Affiliation(s)
- Philipp Spieß
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
- Vienna Doctoral School in ChemistryUniversity of ViennaWähringer Straße 421090ViennaAustria
| | - Ana Sirvent
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
- Christian-Doppler Laboratory for Entropy-Oriented Drug DesignUniversity of ViennaJosef-Holaubek-Platz 21090ViennaAustria
| | - Irmgard Tiefenbrunner
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
| | - Jules Sargueil
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
| | - Anthony J. Fernandes
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
- Christian-Doppler Laboratory for Entropy-Oriented Drug DesignUniversity of ViennaJosef-Holaubek-Platz 21090ViennaAustria
| | - Ana Arroyo‐Bondía
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
| | - Ricardo Meyrelles
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
- Vienna Doctoral School in ChemistryUniversity of ViennaWähringer Straße 421090ViennaAustria
| | - David Just
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
| | | | - Saad Shaaban
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
| | - Daniel Kaiser
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
| | - Nuno Maulide
- Institute of Organic ChemistryUniversity of ViennaWähringer Straße 381090ViennaAustria
- Christian-Doppler Laboratory for Entropy-Oriented Drug DesignUniversity of ViennaJosef-Holaubek-Platz 21090ViennaAustria
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2
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Li J, Zhang Z, Chen L, Li M, Zhang X, Zhang G. Base-Promoted Intramolecular Addition of Vinyl Cyclopropanecarboxamides to Access Conformationally Restricted Aza[3.1.0]bicycles. Molecules 2023; 28:molecules28093691. [PMID: 37175101 PMCID: PMC10179847 DOI: 10.3390/molecules28093691] [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: 04/05/2023] [Revised: 04/22/2023] [Accepted: 04/22/2023] [Indexed: 05/15/2023] Open
Abstract
3-Azabicyclo[3.1.0]hexanes are common structural components in natural products and bioactive compounds. Traditionally, the metal-mediated cyclopropanation domino reaction of chain enzymes is the most commonly used strategy for the construction of this type of aza[3.1.0]bicycle derivative. In this study, a base-promoted intramolecular addition of alkenes used to deliver conformationally restricted highly substituted aza[3.1.0]bicycles is reported. This reaction was tailor-made for saturated aza[3.1.0] bicycle-containing fused bicyclic compounds that may be applied in the development of concise and divergent total syntheses of bioactive compounds.
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Affiliation(s)
- Jingya Li
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Zhiguo Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Liming Chen
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Mengjuan Li
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xingjie Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Guisheng Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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3
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Kaiser M, Schönbauer D, Schragl K, Weil M, Gaertner P, Enev VS. Efforts toward the Total Synthesis of Elisabethin A. J Org Chem 2022; 87:15333-15349. [PMID: 36283031 PMCID: PMC9680034 DOI: 10.1021/acs.joc.2c01914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We describe our efforts toward the total synthesis of the natural product elisabethin A. The first route was guided by the proposed biosynthesis, assembling the 6,6-ring system before forming the five-membered ring including the quaternary carbon. The second approach includes a high yielding cyclization under Mitsunobu conditions as a key step. It allowed the preparation of an unusual and highly functionalized bicyclic 6,5-spiro compound. Both routes share a common advanced precursor obtained from an "underdeveloped" Claisen rearrangement of an aryl dienyl ether.
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Affiliation(s)
- Maximilian Kaiser
- Institute
of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060Wien, Austria,
| | - David Schönbauer
- Institute
of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060Wien, Austria
| | - Katharina Schragl
- Institute
of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060Wien, Austria
| | - Matthias Weil
- Institute
of Chemical Technologies and Analytics, TU Wien, Getreidemarkt
9/164, 1060Wien, Austria
| | - Peter Gaertner
- Institute
of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060Wien, Austria
| | - Valentin S. Enev
- Institute
of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060Wien, Austria,
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4
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Dekarske MM, Felix LO, Ortiz CM, Csatary EE, Mylonakis E, Wuest WM. nTZDpa (non-thiazolidinedione PPARγ partial agonist) derivatives retain antimicrobial activity without improving renal toxicity. Bioorg Med Chem Lett 2022; 64:128678. [PMID: 35301137 PMCID: PMC9019844 DOI: 10.1016/j.bmcl.2022.128678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/08/2022] [Accepted: 03/12/2022] [Indexed: 11/02/2022]
Abstract
nTZDpa kills both growing and persister Staphylococcus aureus. However, due to toxicity liabilities, our lab conducted two structure-activity relationship (SAR) studies focusing on the core scaffold and obtained a new lead compound that was more potent and less hemolytic. Despite these favorable changes, the new lead displayed toxicity to renal cells. In this SAR study, we sought to improve this renal toxicity by derivatization via changes to sp3 character, the acid moiety, and halogenation of the aryl rings. Presented herein are our efforts that produced potent compounds albeit with no improvement to renal cell toxicity.
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Affiliation(s)
- Madeline M Dekarske
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, United States
| | - Lewis Oscar Felix
- Division of Infectious Diseases, Rhode Island Hospital and Warren Alpert Medical School of Brown University, 593 Eddy Street, Providence Rhode Island 02903, United States
| | - Carlos Monteagudo Ortiz
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, United States
| | - Erika E Csatary
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, United States
| | - Elefterios Mylonakis
- Division of Infectious Diseases, Rhode Island Hospital and Warren Alpert Medical School of Brown University, 593 Eddy Street, Providence Rhode Island 02903, United States
| | - William M Wuest
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA 30322, United States.
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5
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Cabré A, Verdaguer X, Riera A. Recent Advances in the Enantioselective Synthesis of Chiral Amines via Transition Metal-Catalyzed Asymmetric Hydrogenation. Chem Rev 2022; 122:269-339. [PMID: 34677059 PMCID: PMC9998038 DOI: 10.1021/acs.chemrev.1c00496] [Citation(s) in RCA: 173] [Impact Index Per Article: 57.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chiral amines are key structural motifs present in a wide variety of natural products, drugs, and other biologically active compounds. During the past decade, significant advances have been made with respect to the enantioselective synthesis of chiral amines, many of them based on catalytic asymmetric hydrogenation (AH). The present review covers the use of AH in the synthesis of chiral amines bearing a stereogenic center either in the α, β, or γ position with respect to the nitrogen atom, reported from 2010 to 2020. Therefore, we provide an overview of the recent advances in the AH of imines, enamides, enamines, allyl amines, and N-heteroaromatic compounds.
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Affiliation(s)
- Albert Cabré
- Institute
for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain
- Departament
de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat
de Barcelona, Martí
i Franquès 1, Barcelona E-08028, Spain
| | - Xavier Verdaguer
- Institute
for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain
- Departament
de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat
de Barcelona, Martí
i Franquès 1, Barcelona E-08028, Spain
| | - Antoni Riera
- Institute
for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain
- Departament
de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat
de Barcelona, Martí
i Franquès 1, Barcelona E-08028, Spain
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6
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Biosca M, Diéguez M, Zanotti-Gerosa A. Asymmetric hydrogenation in industry. ADVANCES IN CATALYSIS 2021. [DOI: 10.1016/bs.acat.2021.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Loska R, Mąkosza M. Introduction of Carbon Substituents into Nitroarenes via Nucleophilic Substitution of Hydrogen: New Developments. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Nucleophilic substitution of hydrogen in nitroarenes has become a powerful synthetic tool for functionalization of these important organic substrates, complementary to other modern methods. In this review we present new developments in the area of introduction of alkyl and functionalized alkyl substituents into nitroarene rings via nucleophilic substitution of hydrogen, followed by application of these processes in the construction of carbo- and heterocyclic rings. Finally, new developments in the investigation of the mechanism of SNArH are summarized.1 Introduction2 Alkylation and Haloalkylation3 Functionalized Carbon Substituents4 Formation of Carbo- and Heterocyclic Rings5 Mechanistic Aspects of SNArH6 Conclusion
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8
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Kreibich M, Gemander M, Peter D, Yadav DB, de Koning CB, Fernandes MA, Green IR, van Otterlo WAL, Brückner R. 6,7‐Benzotropolone Syntheses Based on Ring‐Closing Metatheses and Four‐Electron Oxidations. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Michael Kreibich
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Albertstraße 21 79104 Freiburg Germany
| | - Manuel Gemander
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Albertstraße 21 79104 Freiburg Germany
| | - David Peter
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Albertstraße 21 79104 Freiburg Germany
| | - Dharmendra B. Yadav
- Molecular Sciences Institute School of Chemistry University of the Witwatersrand PO Wits 2050 Johannesburg South Africa
| | - Charles B. de Koning
- Molecular Sciences Institute School of Chemistry University of the Witwatersrand PO Wits 2050 Johannesburg South Africa
| | - Manuel A. Fernandes
- Molecular Sciences Institute School of Chemistry University of the Witwatersrand PO Wits 2050 Johannesburg South Africa
| | - Ivan R. Green
- Department of Chemistry and Polymer Science Stellenbosch University Private Bag X1, Matieland 7602 Stellenbosch Western Cape South Africa
| | - Willem A. L. van Otterlo
- Molecular Sciences Institute School of Chemistry University of the Witwatersrand PO Wits 2050 Johannesburg South Africa
- Department of Chemistry and Polymer Science Stellenbosch University Private Bag X1, Matieland 7602 Stellenbosch Western Cape South Africa
| | - Reinhard Brückner
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Albertstraße 21 79104 Freiburg Germany
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9
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Erb W, Kadari L, Al‐Mekhlafi K, Roisnel T, Dorcet V, Radha Krishna P, Mongin F. Functionalization of 3‐Iodo‐
N
,
N
‐Diisopropylferrocene‐Carboxamide, a Pivotal Substrate to Open the Chemical Space to 1,3‐Disubstituted Ferrocenes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901393] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- William Erb
- Univ Rennes, CNRS, ISCRInstitut des Sciences Chimiques de Rennes)-UMR 6226, F- 35000 Rennes France
| | - Lingaswamy Kadari
- Univ Rennes, CNRS, ISCRInstitut des Sciences Chimiques de Rennes)-UMR 6226, F- 35000 Rennes France
- Organic Synthesis and Process Chemistry Division, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Khadega Al‐Mekhlafi
- Univ Rennes, CNRS, ISCRInstitut des Sciences Chimiques de Rennes)-UMR 6226, F- 35000 Rennes France
| | - Thierry Roisnel
- Univ Rennes, CNRS, ISCRInstitut des Sciences Chimiques de Rennes)-UMR 6226, F- 35000 Rennes France
| | - Vincent Dorcet
- Univ Rennes, CNRS, ISCRInstitut des Sciences Chimiques de Rennes)-UMR 6226, F- 35000 Rennes France
| | - Palakodety Radha Krishna
- Organic Synthesis and Process Chemistry Division, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Florence Mongin
- Univ Rennes, CNRS, ISCRInstitut des Sciences Chimiques de Rennes)-UMR 6226, F- 35000 Rennes France
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10
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Abstract
This work describes a method for the difunctionalization of aryl iodides to generate polysubstituted arenes via Pd catalysis. The reaction hinges on the unique interplay between norbornene and the metal catalyst to impart a guided ortho C-H alkylation event followed by a programmatic ipso borylation to provide a diverse array of substituted arene products. The utility of this transformation is demonstrated through the functionalization of the boronic ester to a variety of valuable functionalities.
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Affiliation(s)
- Xianwei Sui
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Thiago A Grigolo
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Colin J O'Connor
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Joel M Smith
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
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11
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Imaizumi T, Yamashita Y, Nakazawa Y, Okano K, Sakata J, Tokuyama H. Total Synthesis of (+)-CC-1065 Utilizing Ring Expansion Reaction of Benzocyclobutenone Oxime Sulfonate. Org Lett 2019; 21:6185-6189. [PMID: 31188001 DOI: 10.1021/acs.orglett.9b01690] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An indole synthesis via ring expansion of benzocyclobutenone oxime sulfonate was developed. Utility of the indole synthesis was demonstrated by the total synthesis of (+)-CC-1065. The middle and right segments were constructed by a sequential ring expansion of the symmetrical benzo-bis-cyclobutenone. The left segment was also constructed via ring expansion of the methyl-substituted benzocyclobutenone oxime sulfonates. After condensation of these three segments, the dienone cyclopropane structure was formed to complete the total synthesis.
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Affiliation(s)
- Taku Imaizumi
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Yumi Yamashita
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Yuki Nakazawa
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Kentaro Okano
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Juri Sakata
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences , Tohoku University , Aoba 6-3, Aramaki , Aoba-ku, Sendai 980-8578 , Japan
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12
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Erb W, Roisnel T. Asymmetric synthesis of hetero-1,2,3,4,5-pentasubstituted ferrocenes. Chem Commun (Camb) 2019; 55:9132-9135. [PMID: 31304484 DOI: 10.1039/c9cc04604f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The first synthesis of enantioenriched ferrocenes bearing five different substituents on the same cyclopentadienyl ring is described through an unprecedented asymmetric halogen 'dance' reaction. This work not only extends the chemistry of fluoroferrocene derivatives and constitutes the very first entry into the world of enantioenriched hetero-pentasubstituted ferrocenes, it also lays the foundation for research in other metallocene families.
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Affiliation(s)
- William Erb
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France.
| | - Thierry Roisnel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France.
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13
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Hernandez LW, Sarlah D. Empowering Synthesis of Complex Natural Products. Chemistry 2019; 25:13248-13270. [DOI: 10.1002/chem.201901808] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/08/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Lucas W. Hernandez
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue 270 RAL, Box 107-5 Urbana IL 61801 USA
| | - David Sarlah
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue 270 RAL, Box 107-5 Urbana IL 61801 USA
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14
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Li J, Zhou J, Chen Y, Huang J. Divergent Synthesis of Indole-2-carboxylic Acid Derivatives via Ligand-free Copper-catalyzed Ullmann Coupling Reaction. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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