1
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Pinnelli GR, Plettner E. Design and Synthesis of Fluorophore-Tagged Disparlure Enantiomers to Study Pheromone Enantiomer Discrimination in the Pheromone-Binding Proteins from the Gypsy Moth, Lymantria dispar. J Chem Ecol 2021; 48:312-322. [PMID: 34633629 DOI: 10.1007/s10886-021-01318-2] [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: 06/29/2021] [Revised: 09/09/2021] [Accepted: 09/19/2021] [Indexed: 10/20/2022]
Abstract
Fluorescent analogues of the gypsy moth sex pheromone (+)-disparlure (1) and its enantiomer (-)-disparlure (ent-1) were designed, synthesized, and characterized. The fluorescently labelled analogues 6-FAM (+)-disparlure and 1a 6-FAM (-)-disparlure ent-1a were prepared by copper-catalyzed azide-alkyne cycloaddition of disparlure alkyne and 6-FAM azide. These fluorescent disparlure analogues 1a and ent-1a were used to measure disparlure binding to two pheromone-binding proteins from the gypsy moth, LdisPBP1 and LdisPBP2. The fluorescence binding assay showed that LdisPBP1 has a stronger affinity for 6-FAM (-)-disparlure ent-1a, whereas LdisPBP2 has a stronger affinity for 6-FAM (+)-disparlure 1a, consistent with findings from previous studies with disparlure enantiomers. The 6-FAM disparlure enantiomers appeared to be much stronger ligands for LdisPBPs, with binding constants (Kd) in the nanomolar range, compared to the fluorescent reporter 1-NPN (which had Kd values in the micromolar range). Fluorescence competitive binding assays were used to determine the displacement constant (Ki) for the disparlure enantiomers in competition with fluorescent disparlure analogues binding to LdisPBP1 and LdisPBP2. The Ki data show that disparlure enantiomers can effectively displace the fluorescent disparlure from the binding pocket of LdisPBPs and, therefore, occupy the same binding site.
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Affiliation(s)
- Govardhana R Pinnelli
- Department of Chemistry, Simon Fraser University, 8888 University Dr., Burnaby, BC, V5A 1S6, Canada
| | - Erika Plettner
- Department of Chemistry, Simon Fraser University, 8888 University Dr., Burnaby, BC, V5A 1S6, Canada.
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2
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Chevis PJ, Pyne SG. Synthesis of enantioenriched α-heteroatom functionalised aldehydes by chiral organocatalysis and their synthetic applications. Org Chem Front 2021. [DOI: 10.1039/d1qo00101a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Asymmetric organocatalysis is a versatile method for the enantioselective α-functionalisation of aldehydes. The synthetic scope for chiral α-heteroatom substituted aldehydes is examined including their applications in synthesis.
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Affiliation(s)
- Philip J. Chevis
- School of Chemistry and Molecular Bioscience
- University of Wollongong
- Wollongong
- Australia
| | - Stephen G. Pyne
- School of Chemistry and Molecular Bioscience
- University of Wollongong
- Wollongong
- Australia
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3
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Takeshima A, Shimogaki M, Kano T, Maruoka K. Development of Ketone-Based Brominating Agents (KBA) for the Practical Asymmetric α-Bromination of Aldehydes Catalyzed by Tritylpyrrolidine. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01596] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aika Takeshima
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Mio Shimogaki
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Taichi Kano
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo, Kyoto 606-8501, Japan
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
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4
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Development of Multi‐Catalytic Strategies Based on the Combination between Iron‐/Copper‐ and Organo‐Catalysis. Isr J Chem 2020. [DOI: 10.1002/ijch.202000018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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5
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Pinnelli GR, Terrado M, Hillier NK, Lance DR, Plettner E. Synthesis of Isotopically Labelled Disparlure Enantiomers and Application to the Study of Enantiomer Discrimination in Gypsy Moth Pheromone-Binding Proteins. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901164] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Govardhana R. Pinnelli
- Dept. of Chemistry; Simon Fraser University, 8888 University Dr., Burnaby B. C. V5A 1S6; Canada
| | - Mailyn Terrado
- Dept. of Chemistry; Simon Fraser University, 8888 University Dr., Burnaby B. C. V5A 1S6; Canada
| | - N. Kirk Hillier
- Dept. of Biology; Acadia University; Wolfville NS B4P 2R6 Canada
| | | | - Erika Plettner
- Dept. of Chemistry; Simon Fraser University, 8888 University Dr., Burnaby B. C. V5A 1S6; Canada
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6
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Michalak SE, Nam S, Kwon DM, Horne DA, Vanderwal CD. A Chlorine-Atom-Controlled Terminal-Epoxide-Initiated Bicyclization Cascade Enables a Synthesis of the Potent Cytotoxins Haterumaimides J and K. J Am Chem Soc 2019; 141:9202-9206. [PMID: 31129963 DOI: 10.1021/jacs.9b04702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Haterumaimide J (hatJ) is reportedly the most cytotoxic member of the lissoclimide family of labdane diterpenoids. The unusual functional group arrangement of hatJ-C18 oxygenation and C2 chlorination-resisted our efforts at synthesis until we adopted an approach based on rarely studied terminal epoxide-based cation-π bicyclizations that is described herein. Using the C2-chlorine atom as a key stereocontrol element and a furan as a nucleophilic terminator, the key structural features of hatJ were rapidly constructed. The 18-step stereoselective synthesis features applications of chiral pool starting materials, and catalyst-, substrate-, and auxiliary-based stereocontrol. Access to hatJ and its acetylated congener hatK permitted their biological evaluation against aggressive human cancer cell lines.
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Affiliation(s)
- Sharon E Michalak
- Department of Chemistry , University of California, Irvine , 1102 Natural Sciences II , Irvine , California 92697-2025 , United States
| | - Sangkil Nam
- Department of Molecular Medicine , Beckman Research Institute, City of Hope Comprehensive Cancer Center , 1500 East Duarte Road , Duarte , California 91010 , United States
| | - David M Kwon
- Department of Molecular Medicine , Beckman Research Institute, City of Hope Comprehensive Cancer Center , 1500 East Duarte Road , Duarte , California 91010 , United States
| | - David A Horne
- Department of Molecular Medicine , Beckman Research Institute, City of Hope Comprehensive Cancer Center , 1500 East Duarte Road , Duarte , California 91010 , United States
| | - Christopher D Vanderwal
- Department of Chemistry , University of California, Irvine , 1102 Natural Sciences II , Irvine , California 92697-2025 , United States
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7
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Bourboula A, Limnios D, Kokotou MG, Mountanea OG, Kokotos G. Enantioselective Organocatalysis-Based Synthesis of 3-Hydroxy Fatty Acids and Fatty γ-Lactones. Molecules 2019; 24:molecules24112081. [PMID: 31159242 PMCID: PMC6600402 DOI: 10.3390/molecules24112081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 05/27/2019] [Accepted: 05/27/2019] [Indexed: 02/03/2023] Open
Abstract
3-Hydroxy fatty acids have attracted the interest of researchers, since some of them may interact with free fatty acid receptors more effectively than their non-hydroxylated counterparts and their determination in plasma provides diagnostic information regarding mitochondrial deficiency. We present here the development of a convenient and general methodology for the asymmetric synthesis of 3-hydroxy fatty acids. The enantioselective organocatalytic synthesis of terminal epoxides, starting from long chain aldehydes, is the key-step of our methodology, followed by ring opening with vinylmagnesium bromide. Ozonolysis and subsequent oxidation leads to the target products. MacMillan’s third generation imidazolidinone organocatalyst has been employed for the epoxide formation, ensuring products in high enantiomeric purity. Furthermore, a route for the incorporation of deuterium on the carbon atom carrying the hydroxy group was developed allowing the synthesis of deuterated derivatives, which may be useful in biological studies and in mass spectrometry studies. In addition, the synthesis of fatty γ-lactones, corresponding to 4-hydroxy fatty acids, was also explored.
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Affiliation(s)
- Asimina Bourboula
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - Dimitris Limnios
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - Maroula G Kokotou
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - Olga G Mountanea
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - George Kokotos
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
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8
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Quintard A, Sperandio C, Rodriguez J. Modular Enantioselective Synthesis of an Advanced Pentahydroxy Intermediate of Antimalarial Bastimolide A and of Fluorinated and Chlorinated Analogues. Org Lett 2018; 20:5274-5277. [PMID: 30129767 DOI: 10.1021/acs.orglett.8b02213] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A short enantioselective catalytic synthesis of the key C15-C27 fragment of bastimolide A, a natural product showing promising antimalarial bioactivity, is disclosed. The strategic insertion of halogen atoms such as fluorine and chlorine by enantioselective organocatalytic halogenations allowed an excellent stereochemical control for the formation of complex acyclic fragments bearing up to four stereogenic centers. Furthermore, besides the formation of the 1,5,7,9,13-pentahydroxy fragment of the natural product, this strategy opens the route to the modulation of the bioactivity by halogenohydrins.
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Affiliation(s)
- Adrien Quintard
- Aix Marseille Univ , CNRS, Centrale Marseille, iSm2 , Marseille , France
| | - Céline Sperandio
- Aix Marseille Univ , CNRS, Centrale Marseille, iSm2 , Marseille , France
| | - Jean Rodriguez
- Aix Marseille Univ , CNRS, Centrale Marseille, iSm2 , Marseille , France
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9
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Musa MM, Bsharat O, Karume I, Vieille C, Takahashi M, Hamdan SM. Expanding the Substrate Specificity of Thermoanaerobacter pseudoethanolicus
Secondary Alcohol Dehydrogenase by a Dual Site Mutation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701351] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Musa M. Musa
- Chemistry Department; King Fahd University of Petroleum and Minerals; 31261 Dhahran KSA
| | - Odey Bsharat
- Chemistry Department; King Fahd University of Petroleum and Minerals; 31261 Dhahran KSA
| | - Ibrahim Karume
- Chemistry Department; King Fahd University of Petroleum and Minerals; 31261 Dhahran KSA
| | - Claire Vieille
- Department of Microbiology and Molecular Genetics and Department of Biochemistry and Molecular Biology; Michigan State University; 48824 East Lansing MI USA
| | - Masateru Takahashi
- Division of Biological and Environmental Sciences and Engineering; King Abdullah University of Science and Technology; 23955-6900 Thuwal KSA
| | - Samir M. Hamdan
- Division of Biological and Environmental Sciences and Engineering; King Abdullah University of Science and Technology; 23955-6900 Thuwal KSA
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10
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Deng T, Bora PP, Lin SX, Li Y, Kang Q. Octahedral iridium complex catalyzed α-chlorination of 2-acyl imidazoles with tosyl chloride. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Rosell M, Villa M, Durand T, Galano JM, Vercauteren J, Crauste C. Total Syntheses of Two bis-Allylic-Deuterated DHA Analogues. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600565] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mélissa Rosell
- Institut des Biomolécules Max Mousseron; IBMM, UMR5247 CNRS-UM-ENSCM; Faculté de Pharmacie; 15 avenue C. Flahault, BP 14491 34093 Montpellier Cedex 5 France), Fax: (+33) 4-11-75-95-66
| | - Maxime Villa
- Institut des Biomolécules Max Mousseron; IBMM, UMR5247 CNRS-UM-ENSCM; Faculté de Pharmacie; 15 avenue C. Flahault, BP 14491 34093 Montpellier Cedex 5 France), Fax: (+33) 4-11-75-95-66
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron; IBMM, UMR5247 CNRS-UM-ENSCM; Faculté de Pharmacie; 15 avenue C. Flahault, BP 14491 34093 Montpellier Cedex 5 France), Fax: (+33) 4-11-75-95-66
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron; IBMM, UMR5247 CNRS-UM-ENSCM; Faculté de Pharmacie; 15 avenue C. Flahault, BP 14491 34093 Montpellier Cedex 5 France), Fax: (+33) 4-11-75-95-66
| | - Joseph Vercauteren
- Institut des Biomolécules Max Mousseron; IBMM, UMR5247 CNRS-UM-ENSCM; Faculté de Pharmacie; 15 avenue C. Flahault, BP 14491 34093 Montpellier Cedex 5 France), Fax: (+33) 4-11-75-95-66
| | - Céline Crauste
- Institut des Biomolécules Max Mousseron; IBMM, UMR5247 CNRS-UM-ENSCM; Faculté de Pharmacie; 15 avenue C. Flahault, BP 14491 34093 Montpellier Cedex 5 France), Fax: (+33) 4-11-75-95-66
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12
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Chung WJ, Vanderwal CD. Stereoselective Halogenation in Natural Product Synthesis. Angew Chem Int Ed Engl 2016; 55:4396-434. [PMID: 26833878 PMCID: PMC6028003 DOI: 10.1002/anie.201506388] [Citation(s) in RCA: 196] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 08/27/2015] [Indexed: 01/23/2023]
Abstract
At last count, nearly 5000 halogenated natural products have been discovered. In approximately half of these compounds, the carbon atom to which the halogen is bound is sp(3) -hybridized; therefore, there are an enormous number of natural products for which stereocontrolled halogenation must be a critical component of any synthesis strategy. In this Review, we critically discuss the methods and strategies used for stereoselective introduction of halogen atoms in the context of natural product synthesis. Using the successes of the past, we also attempt to identify gaps in our synthesis technology that would aid the synthesis of halogenated natural products, as well as existing methods that have not yet seen application in complex molecule synthesis. The chemistry described herein demonstrates yet again how natural products continue to provide the inspiration for critical advances in chemical synthesis.
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Affiliation(s)
- Won-jin Chung
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, South Korea.
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13
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Chung WJ, Vanderwal CD. Stereoselektive Halogenierungen in der Naturstoffsynthese. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201506388] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Won-jin Chung
- Department of Chemistry; Gwangju Institute of Science and Technology; Gwangju Südkorea
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14
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Jimeno C, Cao L, Renaud P. Trichloromethanesulfonyl Chloride: A Chlorinating Reagent for Aldehydes. J Org Chem 2016; 81:1251-5. [DOI: 10.1021/acs.joc.5b02543] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ciril Jimeno
- Department
of Biological Chemistry and Molecular Modelling, IQAC-CSIC, c/Jordi Girona
18-24, E08034 Barcelona, Spain
| | - Lidong Cao
- Department
of Chemistry and Biochemistry, University of Bern, Freiestrasse
3, CH-3012 Bern, Switzerland
| | - Philippe Renaud
- Department
of Chemistry and Biochemistry, University of Bern, Freiestrasse
3, CH-3012 Bern, Switzerland
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15
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Abstract
The first total synthesis of amphirionin-4 has been achieved using a combination of cross-coupling strategies to access the polyene side chain and a chlorohydrin-based approach to construct the tetrahydrofuranol core. The remote C9-stereocenter was introduced through a Nozaki-Hiyama-Kishi coupling that proceeded with remote stereoinduction.
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Affiliation(s)
- Michael Holmes
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Daniel Kwon
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Matthew Taron
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Robert Britton
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
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16
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Stereoselective synthesis of vic-halohydrins and an unusual Knoevenagel product from an organocatalyzed aldol reaction: A non-enamine mode. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(14)60317-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Affiliation(s)
- Jiayun He
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Jesse Ling
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Pauline Chiu
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
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18
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Halperin SD, Britton R. Chlorine, an atom economical auxiliary for asymmetric aldol reactions. Org Biomol Chem 2013; 11:1702-5. [PMID: 23370443 DOI: 10.1039/c3ob27462d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An auxiliary strategy has been developed for asymmetric reactions of aldehydes in which the auxiliary itself is not chiral, but a single chlorine atom introduced via organocatalytic α-chlorination. The stereodirecting influence of the chlorine atom is then exploited prior to its removal by radical reduction. This strategy is demonstrated in the synthesis of several aldols (92-99% ee) and the natural products (+)-dihydroyashabushiketol and (+)-solistatin.
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Affiliation(s)
- Shira D Halperin
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada, V55 1S6
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19
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Dhand V, Chang S, Britton R. Total synthesis of the cytotoxic anhydrophytosphingosine pachastrissamine (jaspine B). J Org Chem 2013; 78:8208-13. [PMID: 23919543 DOI: 10.1021/jo4013223] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A short, 8-step synthesis of the marine natural product pachastrissamine has been developed that relies on a diastereoselective aldol reaction between a suitably protected hydantoin and an optically enriched α-chloroaldehyde. This synthetic route provides new opportunities for exploring structure activity relationships within this family of natural products.
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Affiliation(s)
- Vijay Dhand
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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20
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Shibatomi K, Narayama A. Catalytic Enantioselective α-Chlorination of Carbonyl Compounds. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300058] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Britton R, Kang B. α-Haloaldehydes: versatile building blocks for natural product synthesis. Nat Prod Rep 2013; 30:227-36. [PMID: 23258610 DOI: 10.1039/c2np20108a] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The diastereoselective addition of organometallic reagents to α-chloroaldehydes was first reported in 1959 and occupies a historically significant role as the prototypical reaction for Cornforth's model of stereoinduction. Despite clear synthetic potential for these reagents, difficulties associated with producing enantiomerically enriched α-haloaldehydes limited their use in natural product synthesis through the latter half of the 20th century. In recent years, however, a variety of robust, organocatalytic processes have been reported that now provide direct access to optically enriched α-haloaldehydes and have motivated renewed interest in their use as building blocks for natural product synthesis. This Highlight summarizes the methods available for the enantioselective preparation of α-haloaldehydes and their stereoselective conversion into natural products.
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Affiliation(s)
- Robert Britton
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada.
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22
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Dhand V, Draper JA, Moore J, Britton R. A Short, Organocatalytic Formal Synthesis of (−)-Swainsonine and Related Alkaloids. Org Lett 2013; 15:1914-7. [DOI: 10.1021/ol400566j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Vijay Dhand
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Jason A. Draper
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Jarod Moore
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Robert Britton
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
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23
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Saadi J, Yamamoto H. β-Siloxy-α-haloketones through highly diastereoselective single and double mukaiyama aldol reactions. Chemistry 2013; 19:3842-5. [PMID: 23424059 PMCID: PMC3874236 DOI: 10.1002/chem.201204493] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Indexed: 11/09/2022]
Abstract
Double-action haloketones: A super silyl group enabled the first highly diastereoselective Mukaiyama aldol reactions of α-chloro- and α-fluoroketones with a wide range of aldehydes, providing anti-β-siloxy-α-haloketones. This process is compatible with one-pot double-aldol methodology and allows for rapid access to new halogen-modified polyketide fragments bearing up to four contiguous stereocenters.
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Affiliation(s)
- Jakub Saadi
- Department of Chemistry, The University of Chicago 5735 South Ellis Avenue, Chicago, IL 60635 (USA)
| | - Hisashi Yamamoto
- Department of Chemistry, The University of Chicago 5735 South Ellis Avenue, Chicago, IL 60635 (USA)
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24
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Mowat J, Senior J, Kang B, Britton R. Scalable synthesis of the pink gypsy moth Lymantria mathura sex pheromone (–)-mathuralure. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mathuralure (1) is the major sex pheromone component of the pink gypsy moth Lymantria mathura, a potentially devastating invasive species to North America. To support population monitoring of this moth, a gram-scale synthesis of (–)-mathuralure (1) was developed. This process relies on coupling an alkynyl lithium species with a chloroepoxide and provides access to the natural product in a 10% yield over 10 steps.
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Affiliation(s)
- Jeffrey Mowat
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5S 1S6, Canada
| | - James Senior
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5S 1S6, Canada
| | - Baldip Kang
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5S 1S6, Canada
| | - Robert Britton
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5S 1S6, Canada
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25
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Stanton GR, Göllü M, Platoff RM, Rich CE, Carroll PJ, Walsh PJ. Synthesis of ChiralN-Sulfonyl andN-Phosphinoyl α-Halo Aldimine Precursors. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200864] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Oger C, Balas L, Durand T, Galano JM. Are alkyne reductions chemo-, regio-, and stereoselective enough to provide pure (Z)-olefins in polyfunctionalized bioactive molecules? Chem Rev 2012. [PMID: 23194255 DOI: 10.1021/cr3001753] [Citation(s) in RCA: 251] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Camille Oger
- Institut des Biomolécules Max Mousseron, UMR CNRS 5247, Université Montpellier 1, Faculté de Pharmacie, 15 av. Charles Flahault, Bât. D, 34093 Montpellier Cedex 05, France
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27
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Patalag LJ, Werz DB. Fluorescent penta- and hexaene fatty acids by a Wittig-Horner/elimination strategy. J Org Chem 2012; 77:5297-304. [PMID: 22616932 DOI: 10.1021/jo300624h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular fluorescent probes have revolutionized biochemical and biophysical studies in the last decades, but with regard to lipids there has been a lack of combining the slim shape of saturated acyl chains with fluorescent properties. Our strategy to pentaene and hexaene fatty acids builds upon commercially available 4-(E)-decenal, which is subjected to a Wittig-Horner reaction after chlorination in α-position. DBU-mediated β-elimination of HCl proceeding the olefination establishes a highly conjugated system to which a salt-free Wittig reaction adds a final double bond leading to a good (Z)-selectivity of 83-86%. The double bond geometry can be optionally isomerized with I(2) to furnish the all-(E)-species. The five conjugated alkene moieties result in a longest-wavelength absorption maximum of about 350 nm. A red-shift to 380 nm was realized by addition of another double bond employing a common Wittig-Horner prolongation sequence. Stokes shifts of about 7300 and 7800 cm(-1), respectively, were observed.
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Affiliation(s)
- Lukas J Patalag
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstr. 2, 37077 Göttingen, Germany
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Abstract
The Mukaiyama cross-aldol reaction of α-fluoro-, α-chloro-, and α-bromoacetaldehyde-derived (Z)-tris(trimethylsilyl)silyl enol ethers is described, furnishing anti-β-siloxy-α-haloaldehydes. A highly diastereoselective, one-pot, sequential double-aldol process is developed, affording novel β,δ-bissiloxy-α,γ-bishaloaldehydes. Reactions are catalyzed by C(6)F(5)CHTf(2) and C(6)F(5)CTf(2)AlMe(2) (0.5-1.5 mol %) and provide access to halogenated polyketide fragments.
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Affiliation(s)
- Jakub Saadi
- Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
| | - Matsujiro Akakura
- Department of Chemistry, Aichi University of Education, Igaya-cho, Kariya, Aichi 448-8542, Japan
| | - Hisashi Yamamoto
- Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
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Nishihara Y, Okada Y, Jiao J, Suetsugu M, Lan MT, Kinoshita M, Iwasaki M, Takagi K. Highly Regio- and Stereoselective Synthesis of Multialkylated Olefins through Carbozirconation of Alkynylboronates and Sequential Negishi and Suzuki-Miyaura Coupling Reactions. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103601] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Nishihara Y, Okada Y, Jiao J, Suetsugu M, Lan MT, Kinoshita M, Iwasaki M, Takagi K. Highly Regio- and Stereoselective Synthesis of Multialkylated Olefins through Carbozirconation of Alkynylboronates and Sequential Negishi and Suzuki-Miyaura Coupling Reactions. Angew Chem Int Ed Engl 2011; 50:8660-4. [DOI: 10.1002/anie.201103601] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Indexed: 11/10/2022]
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Abstract
The reversible reaction of primary or secondary amines with enolizable aldehydes or ketones affords nucleophilic intermediates, enamines. With chiral amines, catalytic enantioselective reactions via enamine intermediates become possible. In this review, structure-activity relationships and the scope as well as current limitations of enamine catalysis are discussed.
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Tortosa M. Synthesis ofsynandanti1,4-Diols by Copper-Catalyzed Boration of Allylic Epoxides. Angew Chem Int Ed Engl 2011; 50:3950-3. [DOI: 10.1002/anie.201100613] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Indexed: 11/11/2022]
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34
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Tortosa M. Synthesis ofsynandanti1,4-Diols by Copper-Catalyzed Boration of Allylic Epoxides. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100613] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Yoshimitsu T, Nakatani R, Kobayashi A, Tanaka T. Asymmetric total synthesis of (+)-danicalipin A. Org Lett 2011; 13:908-11. [PMID: 21288044 DOI: 10.1021/ol1029518] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convergent asymmetric total synthesis of (+)-danicalipin A is accomplished, in which two chlorinated fragments are stereoselectively joined by 1,3-dipolar coupling, leading to the confirmation of the absolute configuration of the natural product.
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Affiliation(s)
- Takehiko Yoshimitsu
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan.
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36
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Kang B, Chang S, Decker S, Britton R. Regioselective and stereoselective cyclizations of chloropolyols in water: rapid synthesis of hydroxytetrahydrofurans. Org Lett 2010; 12:1716-9. [PMID: 20297827 DOI: 10.1021/ol100260z] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A concise, stereoselective synthesis of functionalized tetrahydrofuranols has been developed that involves heating readily available chloropolyols in water. These reactions are operationally straightforward and chemoselective for the formation of tetrahydrofurans, obviating the need for complicated protecting group strategies. The efficiency of this process is demonstrated in a short asymmetric synthesis of the natural product (+)-goniothalesdiol.
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Affiliation(s)
- Baldip Kang
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
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37
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38
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Yoshimitsu T, Fukumoto N, Nakatani R, Kojima N, Tanaka T. Asymmetric Total Synthesis of (+)-Hexachlorosulfolipid, a Cytotoxin Isolated from Adriatic Mussels. J Org Chem 2010; 75:5425-37. [DOI: 10.1021/jo100534d] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takehiko Yoshimitsu
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Naoya Fukumoto
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ryo Nakatani
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Naoto Kojima
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tetsuaki Tanaka
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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Kano T, Shirozu F, Maruoka K. Direct asymmetric bromination of aldehydes catalyzed by a binaphthyl-based secondary amine: highly enantio- and diastereoselective one-pot synthesis of bromohydrins. Chem Commun (Camb) 2010; 46:7590-2. [DOI: 10.1039/c0cc02739a] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Kang B, Mowat J, Pinter T, Britton R. Development of a concise and general enantioselective approach to 2,5-disubstituted-3-hydroxytetrahydrofurans. Org Lett 2009; 11:1717-20. [PMID: 19323544 DOI: 10.1021/ol802711s] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Concise syntheses of 2,5-disubstituted-3-hydroxytetrahydrofurans have been developed that provide access to each configurational isomer of this scaffold from a single aldol adduct. Application of these methods to the rapid preparation of (6S,7S,9S,10S)- and (6S,7S,9R,10R)-6,9-epoxynonadec-18-ene-7,10-diol, two structurally related marine epoxylipids, is reported.
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Affiliation(s)
- Baldip Kang
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, Canada
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41
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Mowat J, Gries R, Khaskin G, Gries G, Britton R. (S)-2-pentyl (R)-3-hydroxyhexanoate, a banana volatile and its olfactory recognition by the common fruit fly, Drosophila melanogaster. JOURNAL OF NATURAL PRODUCTS 2009; 72:772-776. [PMID: 19388708 DOI: 10.1021/np800597k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The volatile organic compounds emitted from ripening bananas that elicit an antennal response from the common fruit fly, Drosophila melanogaster, were analyzed by a combination of gas chromatographic-electroantennographic detection, mass spectrometry, and (1)H NMR spectroscopy. These analyses revealed that the headspace of ripening bananas contains a number of EAD-active components including the new ester (S)-2-pentyl (R)-3-hydroxyhexanoate, the structural assignment of which was confirmed by chemical synthesis.
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Affiliation(s)
- Jeffrey Mowat
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
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42
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Ueda M, Kano T, Maruoka K. Organocatalyzed direct asymmetric α-halogenation of carbonyl compounds. Org Biomol Chem 2009; 7:2005-12. [DOI: 10.1039/b901449g] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Melchiorre P, Marigo M, Carlone A, Bartoli G. Asymmetric aminocatalysis--gold rush in organic chemistry. Angew Chem Int Ed Engl 2008; 47:6138-71. [PMID: 18666089 DOI: 10.1002/anie.200705523] [Citation(s) in RCA: 1111] [Impact Index Per Article: 69.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Catalysis with chiral secondary amines (asymmetric aminocatalysis) has become a well-established and powerful synthetic tool for the chemo- and enantioselective functionalization of carbonyl compounds. In the last eight years alone, this field has grown at such an extraordinary pace that it is now recognized as an independent area of synthetic chemistry, where the goal is the preparation of any chiral molecule in an efficient, rapid, and stereoselective manner. This has been made possible by the impressive level of scientific competition and high quality research generated in this area. This Review describes this "Asymmetric Aminocatalysis Gold Rush" and charts the milestones in its development. As in all areas of science, progress depends on human effort.
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Affiliation(s)
- Paolo Melchiorre
- Department of Organic Chemistry A. Mangini, Alma Mater Studiorum-Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy.
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Melchiorre P, Marigo M, Carlone A, Bartoli G. Die asymmetrische Aminokatalyse - Goldrausch in der organischen Chemie. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200705523] [Citation(s) in RCA: 446] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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