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Schömberg F, Zi Y, Vilotijevic I. Lewis-base-catalysed selective reductions of ynones with a mild hydride donor. Chem Commun (Camb) 2018. [DOI: 10.1039/c8cc00058a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Nucleophilic phosphines catalyze efficient 1,2-reductions of ynones employing pinacolborane as a mild hydride donor in the presence of alcohol additives.
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Affiliation(s)
- F. Schömberg
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- Jena
- Germany
| | - Y. Zi
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- Jena
- Germany
| | - I. Vilotijevic
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- Jena
- Germany
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2
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Siva Nagi Reddy K, Sabitha G. First total synthesis of Pestalotioprolide C and its C7 epimer. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Trost BM, Knopf JD, Brindle CS. Synthetic Strategies Employed for the Construction of Fostriecin and Related Natural Products. Chem Rev 2016; 116:15035-15088. [PMID: 28027648 PMCID: PMC5720176 DOI: 10.1021/acs.chemrev.6b00488] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fostriecin and related natural products present a significant challenge for synthetic chemists due to their structural complexity and chemical sensitivity. This review will chronicle the successful efforts of synthetic chemists in the construction of these biologically active molecules. Key carbon-carbon bond forming reactions will be highlighted, as well as the methods used to install the numerous stereocenters present in this class of compounds.
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Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
| | - Joshua D. Knopf
- Department of Chemistry, Trinity College, 300 Summit Street, Hartford, Connecticut 06106, United States
| | - Cheyenne S. Brindle
- Department of Chemistry, Trinity College, 300 Summit Street, Hartford, Connecticut 06106, United States
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4
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Lu HH, Hinkelmann B, Tautz T, Li J, Sasse F, Franke R, Kalesse M. Paleo-soraphens: chemical total syntheses and biological studies. Org Biomol Chem 2015; 13:8029-36. [DOI: 10.1039/c5ob01249j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To provide a picture of the hypothetical evolutionary optimization of soraphen four additional paleo-soraphens and their biological profiles are described.
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Affiliation(s)
- Hai-Hua Lu
- Institute for Organic Chemistry and Centre for Biomolecular Drug Research (BMWZ)
- Leibniz Universität Hannover
- 30167 Hannover
- Germany
| | - Bettina Hinkelmann
- Department of Chemical Biology
- Helmholtz Centre for Infection Research (HZI)
- Braunschweig
- Germany
| | - Thomas Tautz
- Institute for Organic Chemistry and Centre for Biomolecular Drug Research (BMWZ)
- Leibniz Universität Hannover
- 30167 Hannover
- Germany
| | - Jun Li
- Institute for Organic Chemistry and Centre for Biomolecular Drug Research (BMWZ)
- Leibniz Universität Hannover
- 30167 Hannover
- Germany
| | - Florenz Sasse
- Department of Chemical Biology
- Helmholtz Centre for Infection Research (HZI)
- Braunschweig
- Germany
| | - Raimo Franke
- Department of Chemical Biology
- Helmholtz Centre for Infection Research (HZI)
- Braunschweig
- Germany
| | - Markus Kalesse
- Institute for Organic Chemistry and Centre for Biomolecular Drug Research (BMWZ)
- Leibniz Universität Hannover
- 30167 Hannover
- Germany
- Department of Chemical Biology
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5
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Sabitha G, Raju A, Reddy CN, Yadav JS. Stereoselective total synthesis of (+)-hyptolide. RSC Adv 2014. [DOI: 10.1039/c3ra45042b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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6
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Yus M, González-Gómez JC, Foubelo F. Diastereoselective Allylation of Carbonyl Compounds and Imines: Application to the Synthesis of Natural Products. Chem Rev 2013; 113:5595-698. [DOI: 10.1021/cr400008h] [Citation(s) in RCA: 398] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Miguel Yus
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - José C. González-Gómez
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
| | - Francisco Foubelo
- Departamento de Química
Orgánica, Facultad
de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante,
Spain
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7
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Allenes in Catalytic Asymmetric Synthesis and Natural Product Syntheses. Angew Chem Int Ed Engl 2012; 51:3074-112. [DOI: 10.1002/anie.201101460] [Citation(s) in RCA: 758] [Impact Index Per Article: 63.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Indexed: 02/06/2023]
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8
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Yu S, Ma S. Allene in katalytischer asymmetrischer Synthese und Naturstoffsynthese. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201101460] [Citation(s) in RCA: 254] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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9
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Druais V, Meyer C, Cossy J. Catalytic Diastereoselective Reduction of α,β-Epoxy and α,β-Aziridinyl Ynones. Org Lett 2012; 14:516-9. [DOI: 10.1021/ol203114a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Valérie Druais
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Christophe Meyer
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Janine Cossy
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France
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10
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Xiao ZJ, Zong MH, Lou WY. Highly enantioselective reduction of 4-(trimethylsilyl)-3-butyn-2-one to enantiopure (R)-4-(trimethylsilyl)-3-butyn-2-ol using a novel strain Acetobacter sp. CCTCC M209061. BIORESOURCE TECHNOLOGY 2009; 100:5560-5565. [PMID: 19564106 DOI: 10.1016/j.biortech.2009.06.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Revised: 05/31/2009] [Accepted: 06/02/2009] [Indexed: 05/28/2023]
Abstract
The biocatalytic reduction of 4-(trimethylsilyl)-3-butyn-2-one to enantiopure (R)-4-(trimethylsilyl)-3-butyn-2-ol was successfully conducted with high enantioselectivity using immobilized whole cells of a novel strain Acetobacter sp. CCTCC M209061, newly isolated from kefir. Compared with other microorganisms that were investigated, Acetobacter sp. CCTCC M209061 was shown to be more effective for the bioreduction reaction, and afforded much higher yield and product enantiomeric excess (e.e.). The optimal buffer pH, co-substrate concentration, reaction temperature, substrate concentration and shaking rate were 5.0, 130.6 mM, 30 degrees C, 6.0 mM and 180 r/min, respectively. Under the optimized conditions, the maximum yield and the product e.e. were 71% and >99%, respectively, which are much higher than those reported previously. Additionally, the established biocatalytic system proved to be efficient for the bioreduction of acetyltrimethylsilane to (R)-1-trimethylsilylethanol with excellent yield and product e.e. The immobilized cells manifested a good operational stability under the above reaction conditions since they retained 70% of their catalytic activity after ten cycles of use.
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Affiliation(s)
- Zi-Jun Xiao
- State Key Laboratory of Pulp and Paper Engineering, College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
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11
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Matharu D, Martins J, Wills M. Asymmetric Transfer Hydrogenation of CO and CN Bonds by Tethered RhIIICatalysts. Chem Asian J 2008; 3:1374-83. [DOI: 10.1002/asia.200800189] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Salit AF, Meyer C, Cossy J, Delouvrié B, Hennequin L. Synthetic studies toward cytostatin, a natural product inhibitor of protein phosphatase 2A. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.05.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Jung WH, Guyenne S, Riesco-Fagundo C, Mancuso J, Nakamura S, Curran DP. Confirmation of the stereostructure of (+)-cytostatin by fluorous mixture synthesis of four candidate stereoisomers. Angew Chem Int Ed Engl 2008; 47:1130-3. [PMID: 18175302 DOI: 10.1002/anie.200704893] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Won-Hyuk Jung
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
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Jung WH, Guyenne S, Riesco-Fagundo C, Mancuso J, Nakamura S, Curran D. Confirmation of the Stereostructure of (+)-Cytostatin by Fluorous Mixture Synthesis of Four Candidate Stereoisomers. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200704893] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Cheung FK, Graham MA, Minissi F, Wills M. “Ether-Linked” Organometallic Catalysts for Ketone Reduction Reactions. Organometallics 2007. [DOI: 10.1021/om700610y] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fung Kei Cheung
- The Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, U.K., and Cancer & Infection Chemistry, AstraZeneca, 35S113/3, Mereside, Alderley Park, Macclesfield, Cheshire, SK10 4TG
| | - Mark A. Graham
- The Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, U.K., and Cancer & Infection Chemistry, AstraZeneca, 35S113/3, Mereside, Alderley Park, Macclesfield, Cheshire, SK10 4TG
| | - Franco Minissi
- The Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, U.K., and Cancer & Infection Chemistry, AstraZeneca, 35S113/3, Mereside, Alderley Park, Macclesfield, Cheshire, SK10 4TG
| | - Martin Wills
- The Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, U.K., and Cancer & Infection Chemistry, AstraZeneca, 35S113/3, Mereside, Alderley Park, Macclesfield, Cheshire, SK10 4TG
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16
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Cheung FK, Hayes AM, Morris DJ, Wills M. The use of a [4 + 2] cycloaddition reaction for the preparation of a series of ‘tethered’ Ru(ii)–diamine and aminoalcohol complexes. Org Biomol Chem 2007; 5:1093-103. [PMID: 17377663 DOI: 10.1039/b700744b] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of catalysts have been prepared for use in the asymmetric transfer hydrogenation of ketones. The complexes were prepared using a [4 + 2] cycloaddition reaction at a key step in the reaction sequence. This provides a means for the synthesis of catalysts with modifications at specific sites.
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Affiliation(s)
- Fung Kei Cheung
- The Department of Chemistry, The University of Warwick, Coventry, UKCV4 7AL.
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17
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Lawhorn BG, Boga SB, Wolkenberg SE, Colby DA, Gauss CM, Swingle MR, Amable L, Honkanen RE, Boger DL. Total synthesis and evaluation of cytostatin, its C10-C11 diastereomers, and additional key analogues: impact on PP2A inhibition. J Am Chem Soc 2006; 128:16720-32. [PMID: 17177422 PMCID: PMC2566737 DOI: 10.1021/ja066477d] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The total synthesis of cytostatin, an antitumor agent belonging to the fostriecin family of natural products, is described in full detail. The convergent approach relied on a key epoxide-opening reaction to join the two stereotriad units and a single-step late-stage stereoselective installation of the sensitive (Z,Z,E)-triene through a beta-chelation-controlled nucleophilic addition. The synthetic route provided rapid access to the C4-C6 stereoisomers of the cytostatin lactone, which were prepared and used to define the C4-C6 relative stereochemistry of the natural product. In addition to the natural product, each of the C10-C11 diastereomers of cytostatin was divergently prepared (11 steps from key convergence step) by this route and used to unequivocally confirm the relative and absolute stereochemistry of cytostatin. Each of the cytostatin diastereomers exhibited a reduced activity toward inhibition of PP2A (>100-fold), demonstrating the importance of the presence and stereochemistry of the C10-methyl and C11-hydroxy groups for potent PP2A inhibition. Extensions of the studies provided dephosphocytostatin, sulfocytostatin (a key analogue related to the natural product sultriecin), 11-deshydroxycytostatin, and an analogue lacking the entire C12-C18 (Z,Z,E)-triene segment, which were used to define the magnitude of the C9-phosphate (>4000-fold), C11-alcohol (250-fold), and triene (220-fold) contribution to PP2A inhibition. A model of cytostatin bound to the active site of PP2A is presented, compared to that of fostriecin, which is also presented in detail for the first time, and used to provide insights into the role of the key substituents. Notably, the alpha,beta unsaturated lactone of cytostatin, like that of fostriecin, is projected to serve as a key electrophile, providing a covalent adduct with Cys269 unique to PP2A, contributing to its potency (> or =200-fold for fostriecin) and accounting for its selectivity.
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Affiliation(s)
- Brian G. Lawhorn
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Sobhana B. Boga
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Scott E. Wolkenberg
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - David A. Colby
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Carla-Maria Gauss
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Mark R. Swingle
- Department of Biochemistry and Molecular Biology, University of South Alabama College of Medicine, Mobile, Alabama 36688
| | - Lauren Amable
- Department of Biochemistry and Molecular Biology, University of South Alabama College of Medicine, Mobile, Alabama 36688
| | - Richard E. Honkanen
- Department of Biochemistry and Molecular Biology, University of South Alabama College of Medicine, Mobile, Alabama 36688
| | - Dale L. Boger
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
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Morris DJ, Hayes AM, Wills M. The “Reverse-Tethered” Ruthenium (II) Catalyst for Asymmetric Transfer Hydrogenation: Further Applications. J Org Chem 2006; 71:7035-44. [PMID: 16930059 DOI: 10.1021/jo061154l] [Citation(s) in RCA: 146] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The attachment of a tethering group from the basic nitrogen atom to the arene ligand of a ruthenium(II) catalyst greatly improves its ability to catalyze asymmetric transfer hydrogenation (ATH) reactions. In this paper, we describe further applications of this versatile system to an extended substrate range.
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Affiliation(s)
- David J Morris
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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Marshall JA, Eidam P, Eidam HS. (R)- and (S)-4-TIPS-3-butyn-2-ol. Useful Precursors of Chiral Allenylzinc and Indium Reagents. J Org Chem 2006; 71:4840-4. [PMID: 16776511 DOI: 10.1021/jo060542k] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convenient route to the enantiomers of 4-TIPS-3-butyn-2-ol of >95% enantiomeric purity by reduction of the ynone precursor 4 with the Noyori N-tosyl-1,2-diphenylethylenediamineruthenium cymene catalyst is described. The mesylate derivative of the (S) enantiomer (1c) is converted in situ to an allenylzinc or indium reagent in the presence of a catalyst derived from Pd(OAc)2 and Ph3P and either Et2Zn or InI. A second in situ addition of these reagents to aldehydes leads to anti homopropargylic alcohol adducts. The additions proceed in generally high (60-90%) yield with modest to excellent diastereoselectivity and high enantioselectivity. Only slight mismatching (<5%) is observed with chiral alpha-methyl and alpha-silyloxy aldehydes. Additions to alpha-substituted enals are highly diastereoselective, while beta,beta-disubstituted enals afford ca. 2:1 mixtures of anti and syn adducts.
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Affiliation(s)
- James A Marshall
- Department of Chemistry, University of Virginia, McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22904-4319, USA.
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Matharu DS, Morris DJ, Clarkson GJ, Wills M. An outstanding catalyst for asymmetric transfer hydrogenation in aqueous solution and formic acid/triethylamine. Chem Commun (Camb) 2006:3232-4. [PMID: 17028753 DOI: 10.1039/b606288a] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Rh/tetramethylcyclopentadienyl complex containing a tethered functionality has been demonstrated to give excellent results in the asymmetric transfer hydrogenation of ketones in both aqueous and formic acid/triethylamine media.
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Matharu DS, Morris DJ, Kawamoto AM, Clarkson GJ, Wills M. A Stereochemically Well-Defined Rhodium(III) Catalyst for Asymmetric Transfer Hydrogenation of Ketones. Org Lett 2005; 7:5489-91. [PMID: 16288538 DOI: 10.1021/ol052559f] [Citation(s) in RCA: 138] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] A rhodium(III) catalyst for asymmetric transfer hydrogenation of ketones has been designed. The incorporation of a tethering group between the diamino group and the cyclopentadienyl unit provides extra stereochemical rigidity. The catalyst is capable of enantioselective reduction of a range of ketones in excellent ee using formic acid/triethylamine as both the solvent and the reducing agent.
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Affiliation(s)
- Daljit S Matharu
- Asymmetric Catalysis Group, Department of Chemistry, University of Warwick, Coventry, UK
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Hayes AM, Morris DJ, Clarkson GJ, Wills M. A Class of Ruthenium(II) Catalyst for Asymmetric Transfer Hydrogenations of Ketones. J Am Chem Soc 2005; 127:7318-9. [PMID: 15898773 DOI: 10.1021/ja051486s] [Citation(s) in RCA: 235] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ruthenium dimer 6 (readily available in two steps from TsDPEN) is converted directly to monomeric asymmetric transfer hydrogenation catalyst 3 in situ under the conditions employed for ketone reduction. Catalyst 3 is a significantly more active catalyst for this application than the untethered derivative, exhibits higher enantioselectivities across a range of substrates, and appears to be highly stable to the reaction conditions. It is active at loadings of as low as 0.01 mol %, and reductions at the 0.1 mol % level are complete within 20 min at 80 degrees C without significant loss of enantioselectivity.
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Affiliation(s)
- Aidan M Hayes
- Asymmetric Catalysis Group, Department of Chemistry, University of Warwick, UK
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