1
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Yasui S, Banjo S, Nagashima Y, Okada Y, Yoshikawa K, Nakata K, Chida N, Okamura T, Sato T. Total Synthesis of Lobatamides A and C. Angew Chem Int Ed Engl 2024; 63:e202402335. [PMID: 38454885 DOI: 10.1002/anie.202402335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 03/09/2024]
Abstract
The total synthesis of lobatamides A (1 a) and C (1 c) via a common bislactone intermediate is reported. The allylic aryl moiety including a trisubstituted Z-olefin was constructed by hydroboration of a 1,1-disubstituted allene and subsequent Migita-Kosugi-Stille coupling. Although the seco acid proved to be highly unstable even in the presence of weak bases, Zhao macrolactonization under acidic conditions via the α-acyloxyenamide successfully provided the common bislactone intermediate. Hydrozirconation-iodination of the terminal alkyne and subsequent copper-mediated coupling with primary amides proceeded successfully in the presence of the sensitive bislactone framework. The developed synthetic route enables the late-stage installation of enamide side chains, which are crucial structures for V-ATPase inhibition.
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Affiliation(s)
- Soichiro Yasui
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Shona Banjo
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Yoshiyuki Nagashima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Yuto Okada
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kao Yoshikawa
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Keisuke Nakata
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Toshitaka Okamura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
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2
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Ullrich P, Schlamkow MA, Choi C, Kerkenpaß H, Henßen B, Pietruszka J. Enantioselective Allylation of Cyclic and
In Situ
Formed
N
‐Unsubstituted Imines with Tetraol‐Protected Allylboronates. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Patrick Ullrich
- Institut für Bioorganische Chemie (IBOC) Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, and Bioeconomy Science Center (BioSC) Geb. 15.8 52426 Jülich Germany
| | - Max A. Schlamkow
- Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) Forschungszentrum Jülich 52428 Jülich Germany
| | - Ching‐Yi Choi
- Institut für Bioorganische Chemie (IBOC) Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, and Bioeconomy Science Center (BioSC) Geb. 15.8 52426 Jülich Germany
| | - Hannah Kerkenpaß
- Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) Forschungszentrum Jülich 52428 Jülich Germany
| | - Birgit Henßen
- Institut für Bioorganische Chemie (IBOC) Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, and Bioeconomy Science Center (BioSC) Geb. 15.8 52426 Jülich Germany
- Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) Forschungszentrum Jülich 52428 Jülich Germany
| | - Jörg Pietruszka
- Institut für Bioorganische Chemie (IBOC) Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, and Bioeconomy Science Center (BioSC) Geb. 15.8 52426 Jülich Germany
- Institut für Bio- und Geowissenschaften (IBG-1: Bioorganische Chemie) Forschungszentrum Jülich 52428 Jülich Germany
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3
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Fager DC, Morrison RJ, Hoveyda AH. Regio- and Enantioselective Synthesis of Trifluoromethyl-Substituted Homoallylic α-Tertiary NH 2 -Amines by Reactions Facilitated by a Threonine-Based Boron-Containing Catalyst. Angew Chem Int Ed Engl 2020; 59:11448-11455. [PMID: 32219997 DOI: 10.1002/anie.202001184] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/25/2020] [Indexed: 12/20/2022]
Abstract
A method for catalytic regio- and enantioselective synthesis of trifluoromethyl-substituted and aryl-, heteroaryl-, alkenyl-, and alkynyl-substituted homoallylic α-tertiary NH2 -amines is introduced. Easy-to-synthesize and robust N-silyl ketimines are converted to NH-ketimines in situ, which then react with a Z-allyl boronate. Transformations are promoted by a readily accessible l-threonine-derived aminophenol-based boryl catalyst, affording the desired products in up to 91 % yield, >98:2 α:γ selectivity, >98:2 Z:E selectivity, and >99:1 enantiomeric ratio. A commercially available aminophenol may be used, and allyl boronates, which may contain an alkyl-, a chloro-, or a bromo-substituted Z-alkene, can either be purchased or prepared by catalytic stereoretentive cross-metathesis. What is more, Z-trisubstituted allyl boronates may be used. Various chemo-, regio-, and diastereoselective transformations of the α-tertiary homoallylic NH2 -amine products highlight the utility of the approach; this includes diastereo- and regioselective epoxide formation/trichloroacetic acid cleavage to generate differentiated diol derivatives.
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Affiliation(s)
- Diana C Fager
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Ryan J Morrison
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
- Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000, Strasbourg, France
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4
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Fager DC, Morrison RJ, Hoveyda AH. Regio‐ and Enantioselective Synthesis of Trifluoromethyl‐Substituted Homoallylic α‐Tertiary NH
2
‐Amines by Reactions Facilitated by a Threonine‐Based Boron‐Containing Catalyst. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Diana C. Fager
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Ryan J. Morrison
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
- Supramolecular Science and Engineering Institute University of Strasbourg CNRS 67000 Strasbourg France
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5
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Pearson CM, Fyfe JWB, Snaddon TN. A Regio‐ and Stereodivergent Synthesis of Homoallylic Amines by a One‐Pot Cooperative‐Catalysis‐Based Allylic Alkylation/Hofmann Rearrangement Strategy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905426] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Colin M. Pearson
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - James W. B. Fyfe
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Thomas N. Snaddon
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
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6
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Pearson CM, Fyfe JWB, Snaddon TN. A Regio- and Stereodivergent Synthesis of Homoallylic Amines by a One-Pot Cooperative-Catalysis-Based Allylic Alkylation/Hofmann Rearrangement Strategy. Angew Chem Int Ed Engl 2019; 58:10521-10527. [PMID: 31132203 DOI: 10.1002/anie.201905426] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Indexed: 01/19/2023]
Abstract
Herein, we report a modular synthetic route to linear and branched homoallylic amines that operates through a sequential one-pot Lewis base/transition-metal catalyzed allylic alkylation/Hofmann rearrangement strategy. This protocol is operationally trivial, proceeds from simple and easily prepared substrates and catalysts, and enables all aspects of regio- and stereoselectivity to be controlled through a conserved experimental protocol. Overall, the high levels of enantio-, regio-, and diastereoselectivity obtained, in concert with the ability to access orthogonally protected or free amines, render this a straightforward and effective approach for the preparation of useful enantioenriched homoallylic amines. We have also demonstrated the utility of the products in the context of pharmaceutical synthesis.
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Affiliation(s)
- Colin M Pearson
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - James W B Fyfe
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Thomas N Snaddon
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
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7
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Huang G, Huang W, Guo J, Xu D, Qu X, Zhai P, Zheng X, Weng J, Lu G. Enantioselective Synthesis of Triarylmethanes
via
Organocatalytic 1,6‐Addition of Arylboronic Acids to
para
‐Quinone Methides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801446] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gong‐Bin Huang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Wei‐Hua Huang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Jing Guo
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Dong‐Liang Xu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Xiao‐Chen Qu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Pei‐Hong Zhai
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Xiu‐Hua Zheng
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Jiang Weng
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Gui Lu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 People's Republic of China
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8
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Sharma P, Sharma RK. Electrophilic [N-F] + catalysed asymmetric allylation of (E)-N,1-diphenylmethanimine. Chirality 2018; 31:91-96. [PMID: 30565759 DOI: 10.1002/chir.23039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/01/2018] [Accepted: 11/07/2018] [Indexed: 01/15/2023]
Abstract
New efficient catalysts based on electrophilic N-fluoro quaternary ammonium salts are reported for catalytic allylation of (E)-N,1-diphenylmethanimine. The chiral version of the catalyst based on cinchonidine (F-CD-BF4 ) shows high catalytic activity with approximately 94% ee and TOF (>800 h-1 ). The F-CD-BF4 is prepared from cinchonidine and Selectfluor by one-step transfer fluorination.
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Affiliation(s)
- Poonam Sharma
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, India
| | - Rakesh K Sharma
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, India
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9
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Hetzler BE, Volpin G, Vignoni E, Petrovic AG, Proni G, Hu CT, Trauner D. A Versatile Bis-Allylboron Reagent for the Stereoselective Synthesis of Chiral Diols. Angew Chem Int Ed Engl 2018; 57:14276-14280. [PMID: 30144261 DOI: 10.1002/anie.201808234] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Indexed: 01/03/2023]
Abstract
Allylboron reagents are popular in synthesis owing to their versatility and the predictable stereochemical outcomes of their reactions with carbonyl compounds. Herein, we describe the synthesis of (Z,Z)-hexadienyl bis-boronate 1, a configurationally stable, crystalline, and easy to handle compound, which represents a class of bis-allylic boron reagents with heretofore untapped synthetic potential. In combination with a chiral phosphoric acid catalyst, the reagent can be employed for the enantioselective allyl transfer reaction to a variety of one-pot transformations, enabling swift access to functionalized 1,n-diols. The in situ conversion of the reagent into the corresponding bis-borinic ester allows for the direct and diastereoselective two-fold allyl transfer to aldehydes. This affords C2 - or Ci -symmetric stereotetrads containing a 1,4-diol moiety for natural product synthesis. The usefulness of our method was demonstrated with a short synthesis of the lignan (±)-neo-olivil.
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Affiliation(s)
- Belinda E Hetzler
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Giulio Volpin
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Elisa Vignoni
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Ana G Petrovic
- Department of Life Sciences, New York Institute of Technology, 1855 Broadway, New York, NY, 10023, USA
| | - Gloria Proni
- Department of Sciences, John Jay College of Criminal Justice, 524 West 54th Street, New York, NY, 10019, USA
| | - Chunhua T Hu
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Dirk Trauner
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
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10
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Hetzler BE, Volpin G, Vignoni E, Petrovic AG, Proni G, Hu CT, Trauner D. Ein vielseitiges Bisallylbor‐Reagenz für die stereoselektive Synthese von chiralen Diolen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Belinda E. Hetzler
- Department of Chemistry New York University 100 Washington Square East New York NY 10003 USA
| | - Giulio Volpin
- Department of Chemistry New York University 100 Washington Square East New York NY 10003 USA
| | - Elisa Vignoni
- Department of Drug Sciences University of Pavia Via Taramelli 12 27100 Pavia Italien
| | - Ana G. Petrovic
- Department of Life Sciences New York Institute of Technology 1855 Broadway New York NY 10023 USA
| | - Gloria Proni
- Department of Sciences John Jay College of Criminal Justice 524 West 54th Street New York NY 10019 USA
| | - Chunhua T. Hu
- Department of Chemistry New York University 100 Washington Square East New York NY 10003 USA
| | - Dirk Trauner
- Department of Chemistry New York University 100 Washington Square East New York NY 10003 USA
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11
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Plaza M, Parisotto S, Valdés C. Heterocyclization and Spirocyclization Processes Based on Domino Reactions of N
-Tosylhydrazones and Boronic Acids Involving Intramolecular Allylborylations of Nitriles. Chemistry 2018; 24:14836-14843. [DOI: 10.1002/chem.201803309] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Indexed: 02/03/2023]
Affiliation(s)
- Manuel Plaza
- Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería 8. Oviedo 33006 Spain
| | - Stefano Parisotto
- Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería 8. Oviedo 33006 Spain
| | - Carlos Valdés
- Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; c/ Julián Clavería 8. Oviedo 33006 Spain
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12
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Morrison RJ, Hoveyda AH. γ-, Diastereo-, and Enantioselective Addition of MEMO-Substituted Allylboron Compounds to Aldimines Catalyzed by Organoboron-Ammonium Complexes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805811] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ryan J. Morrison
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
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13
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Morrison RJ, Hoveyda AH. γ-, Diastereo-, and Enantioselective Addition of MEMO-Substituted Allylboron Compounds to Aldimines Catalyzed by Organoboron-Ammonium Complexes. Angew Chem Int Ed Engl 2018; 57:11654-11661. [PMID: 29969173 DOI: 10.1002/anie.201805811] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/02/2018] [Indexed: 01/21/2023]
Abstract
The first catalytic, broadly applicable, efficient, γ-, diastereo-, and enantioselective method for addition of O-substituted allyl-B(pin) compounds to phosphinoylimines (MEM=methoxyethoxymethyl, pin=pinacolato) is presented. The identity of the most effective catalyst and the optimal protecting group for the organoboron reagent were determined by consideration of the steric and electronic requirements at different stages of the catalytic cycle, namely, the generation of the chiral allylboronate, the subsequent 1,3-borotropic shift, and the addition step. Aryl-, heteroaryl-, alkenyl- and alkyl-substituted vicinal phosphinoylamido MEM-ethers were thus accessed in 57-92 % yield, 89:11 to >98:2 γ:α selectivity, 76:24-97:3 diastereomeric ratio, and 90:10-99:1 enantiomeric ratio. The method is scalable, and the phosphinoyl and MEM groups may be removed selectively or simultaneously. Utility is highlighted by enantioselective synthesis of an NK-1 receptor antagonist.
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Affiliation(s)
- Ryan J Morrison
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
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14
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Nagashima Y, Sasaki K, Suto T, Sato T, Chida N. Stereodivergent Hydroboration of Allenes. Chem Asian J 2018; 13:1024-1028. [DOI: 10.1002/asia.201800134] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Indexed: 02/03/2023]
Affiliation(s)
- Yoshiyuki Nagashima
- Department of Applied Chemistry; Faculty of Science and Technology; Keio University, 3-14-1; Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
| | - Keiji Sasaki
- Department of Applied Chemistry; Faculty of Science and Technology; Keio University, 3-14-1; Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
| | - Takahiro Suto
- Department of Applied Chemistry; Faculty of Science and Technology; Keio University, 3-14-1; Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
| | - Takaaki Sato
- Department of Applied Chemistry; Faculty of Science and Technology; Keio University, 3-14-1; Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
| | - Noritaka Chida
- Department of Applied Chemistry; Faculty of Science and Technology; Keio University, 3-14-1; Hiyoshi Kohoku-ku Yokohama 223-8522 Japan
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15
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Wu L, Shao Q, Yang G, Zhang W. Cobalt-Catalyzed Asymmetric Allylation of Cyclic Ketimines. Chemistry 2017; 24:1241-1245. [DOI: 10.1002/chem.201704760] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Indexed: 02/01/2023]
Affiliation(s)
- Liang Wu
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Qihang Shao
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Guoqiang Yang
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
| | - Wanbin Zhang
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P.R. China
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16
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Mszar NW, Mikus MS, Torker S, Haeffner F, Hoveyda AH. Electronically Activated Organoboron Catalysts for Enantioselective Propargyl Addition to Trifluoromethyl Ketones. Angew Chem Int Ed Engl 2017; 56:8736-8741. [PMID: 28560721 DOI: 10.1002/anie.201703844] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 05/15/2017] [Indexed: 11/11/2022]
Abstract
A broadly applicable, practical, scalable, efficient and highly α- and enantioselective method for addition of a silyl-protected propargyl moiety to trifluoromethyl ketones has been developed. Reactions, promoted by 2.0 mol % of a catalyst that is derived in situ from a readily accessible aminophenol compound at ambient temperature, were complete after only 15 minutes at room temperature. The desired tertiary alcohols were isolated in up to 97 % yield and 98.5:1.5 enantiomeric ratio. Alkyl-, alkenyl-, alkynyl-, aryl- or heteroaryl-substituted trifluoromethyl ketones can be used. Utility is highlighted by application to a transformation that is relevant to enantioselective synthesis of BI 653048, a compound active against rheumatoid arthritis.
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Affiliation(s)
- Nicholas W Mszar
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Malte S Mikus
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Fredrik Haeffner
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
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17
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Mszar NW, Mikus MS, Torker S, Haeffner F, Hoveyda AH. Electronically Activated Organoboron Catalysts for Enantioselective Propargyl Addition to Trifluoromethyl Ketones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703844] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Nicholas W. Mszar
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Malte S. Mikus
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Sebastian Torker
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Fredrik Haeffner
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry; Merkert Chemistry Center; Boston College; Chestnut Hill MA 02467 USA
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18
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Sengoku T, Sugiyama A, Kamiya Y, Maegawa R, Takahashi M, Yoda H. Use of a (β-Amidoallyl)boronate as a Nucleophilic Reagent in Catalytic Enantioselective Addition to Isatins. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601612] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tetsuya Sengoku
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
| | - Akihiro Sugiyama
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
| | - Yuta Kamiya
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
| | - Ryunosuke Maegawa
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
| | - Masaki Takahashi
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
| | - Hidemi Yoda
- Department of Applied Chemistry; Faculty of Engineering; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
- Graduate School of Science and Technology; Shizuoka University; 3-5-1 Johoku, Naka-ku 432-8561 Hamamatsu Japan
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19
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Jiang Y, Schaus SE. Asymmetric Petasis Borono-Mannich Allylation Reactions Catalyzed by Chiral Biphenols. Angew Chem Int Ed Engl 2017; 56:1544-1548. [PMID: 28052567 PMCID: PMC5716625 DOI: 10.1002/anie.201611332] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Indexed: 12/25/2022]
Abstract
Chiral biphenols catalyze the asymmetric Petasis borono-Mannich allylation of aldehydes and amines through the use of a bench-stable allyldioxaborolane. The reaction proceeds via a two-step, one-pot process and requires 2-8 mole % of 3,3'-Ph2 -BINOL as the optimal catalyst. Under microwave heating the reaction affords chiral homoallylic amines in excellent yields (up to 99 %) and high enantioselectivies (er up to 99:1). The catalytic reaction is a true multicomponent condensation reaction whereas both the aldehyde and the amine can possess a wide range of structural and electronic properties. Use of crotyldioxaborolane in the reaction results in stereodivergent products with anti- and syn-diastereomers both in good diastereoselectivities and enantioselectivities from the corresponding E- and Z-borolane stereoisomers.
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Affiliation(s)
- Yao Jiang
- Department of Chemistry, Center for Molecular Discovery, Boston University, 24 Cummington Mall, Boston, MA, 02215, USA
| | - Scott E Schaus
- Department of Chemistry, Center for Molecular Discovery, Boston University, 24 Cummington Mall, Boston, MA, 02215, USA
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20
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Lee J, Torker S, Hoveyda AH. Versatile Homoallylic Boronates by Chemo-, S N 2'-, Diastereo- and Enantioselective Catalytic Sequence of Cu-H Addition to Vinyl-B(pin)/Allylic Substitution. Angew Chem Int Ed Engl 2017; 56:821-826. [PMID: 27996213 PMCID: PMC5267969 DOI: 10.1002/anie.201611444] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Indexed: 12/31/2022]
Abstract
A highly chemo-, diastereo- and enantioselective catalytic method that efficiently combines a silyl hydride, vinyl-B(pin) (pin=pinacolato) and (E)-1,2-disubstituted allylic phosphates is introduced. Reactions, best promoted by a Cu-based complex with a chiral sulfonate-containing N-heterocyclic carbene, are broadly applicable. Aryl-, heteroaryl-, alkenyl-, alkynyl- and alkyl-substituted allylic phosphates may thus be converted to the corresponding homoallylic boronates and then alcohols (after C-B bond oxidation) in 46-91 % yield and in up to >98 % SN 2':SN 2 ratio, 96:4 diastereomeric ratio and 98:2 enantiomeric ratio. The reasons why an NHC-Cu catalyst is uniquely effective (vs. the corresponding phosphine systems) and the basis for different trends in stereoselectivity are provided with the aid of DFT calculations.
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Affiliation(s)
- Jaehee Lee
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
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21
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Jiang Y, Schaus SE. Asymmetric Petasis Borono-Mannich Allylation Reactions Catalyzed by Chiral Biphenols. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611332] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yao Jiang
- Department of Chemistry, Center for Molecular Discovery; Boston University; 24 Cummington Mall Boston MA 02215 USA
| | - Scott E. Schaus
- Department of Chemistry, Center for Molecular Discovery; Boston University; 24 Cummington Mall Boston MA 02215 USA
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22
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Lee J, Torker S, Hoveyda AH. Versatile Homoallylic Boronates by Chemo‐, S
N
2′‐, Diastereo‐ and Enantioselective Catalytic Sequence of Cu−H Addition to Vinyl‐B(pin)/Allylic Substitution. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201611444] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jaehee Lee
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
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23
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Alam R, Diner C, Jonker S, Eriksson L, Szabó KJ. Catalytic Asymmetric Allylboration of Indoles and Dihydroisoquinolines with Allylboronic Acids: Stereodivergent Synthesis of up to Three Contiguous Stereocenters. Angew Chem Int Ed Engl 2016; 55:14417-14421. [PMID: 27735124 PMCID: PMC5129484 DOI: 10.1002/anie.201608605] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Indexed: 12/17/2022]
Abstract
The catalytic asymmetric allylboration of cyclic imines with γ,γ‐disubstituted allylboronic acids provides products with adjacent stereocenters in high yield and stereoselectivity. Various electrophiles, including 3,4‐dihydroisoquinolines and indoles, were prenylated in a fully stereodivergent fashion by switching the E/Z geometry of the allylboronate and/or the enantiomer of the BINOL catalyst. 3‐Methylindole provided products with three adjacent stereocenters with high stereoselectivity in one synthetic operation.
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Affiliation(s)
- Rauful Alam
- Department of Organic Chemistry, Stockholm University, Sweden
| | - Colin Diner
- Department of Organic Chemistry, Stockholm University, Sweden
| | - Sybrand Jonker
- Department of Organic Chemistry, Stockholm University, Sweden
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry, Stockholm University, Sweden
| | - Kálmán J Szabó
- Department of Organic Chemistry, Stockholm University, Sweden.
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24
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Alam R, Diner C, Jonker S, Eriksson L, Szabó KJ. Catalytic Asymmetric Allylboration of Indoles and Dihydroisoquinolines with Allylboronic Acids: Stereodivergent Synthesis of up to Three Contiguous Stereocenters. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608605] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rauful Alam
- Department of Organic Chemistry; Stockholm University; Sweden
| | - Colin Diner
- Department of Organic Chemistry; Stockholm University; Sweden
| | - Sybrand Jonker
- Department of Organic Chemistry; Stockholm University; Sweden
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry; Stockholm University; Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry; Stockholm University; Sweden
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25
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Robbins DW, Lee K, Silverio DL, Volkov A, Torker S, Hoveyda AH. Practical and Broadly Applicable Catalytic Enantioselective Additions of Allyl-B(pin) Compounds to Ketones and α-Ketoesters. Angew Chem Int Ed Engl 2016; 55:9610-9614. [PMID: 27273249 PMCID: PMC4978177 DOI: 10.1002/anie.201603894] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Indexed: 01/26/2023]
Abstract
A set of broadly applicable methods for efficient catalytic additions of easy-to-handle allyl-B(pin) (pin=pinacolato) compounds to ketones and acyclic α-ketoesters was developed. Accordingly, a large array of tertiary alcohols can be obtained in 60 to >98 % yield and up to 99:1 enantiomeric ratio. At the heart of this development is rational alteration of the structures of the small-molecule aminophenol-based catalysts. Notably, with ketones, increasing the size of a catalyst moiety (tBu to SiPh3 ) results in much higher enantioselectivity. With α-ketoesters, on the other hand, not only does the opposite hold true, since Me substitution leads to substantially higher enantioselectivity, but the sense of the selectivity is reversed as well.
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Affiliation(s)
- Daniel W. Robbins
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - KyungA Lee
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Daniel L. Silverio
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Alexey Volkov
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467 (USA)
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26
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Robbins DW, Lee K, Silverio DL, Volkov A, Torker S, Hoveyda AH. Practical and Broadly Applicable Catalytic Enantioselective Additions of Allyl-B(pin) Compounds to Ketones and α-Ketoesters. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603894] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Daniel W. Robbins
- Department of Chemistry; Merkert Chemistry Center, Boston College; Chestnut Hill MA 02467 USA
| | - KyungA Lee
- Department of Chemistry; Merkert Chemistry Center, Boston College; Chestnut Hill MA 02467 USA
| | - Daniel L. Silverio
- Department of Chemistry; Merkert Chemistry Center, Boston College; Chestnut Hill MA 02467 USA
| | - Alexey Volkov
- Department of Chemistry; Merkert Chemistry Center, Boston College; Chestnut Hill MA 02467 USA
| | - Sebastian Torker
- Department of Chemistry; Merkert Chemistry Center, Boston College; Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry; Merkert Chemistry Center, Boston College; Chestnut Hill MA 02467 USA
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