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Krogmeier TJ, Pappas ES, Reardon KA, Rivera MR, Head-Marsden K, Parsons BF, Schlimgen AW. Characterizing the origin band spectrum of isoquinoline with resonance enhanced multiphoton ionization and electronic structure calculations. J Chem Phys 2023; 159:134305. [PMID: 37791625 DOI: 10.1063/5.0168421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/10/2023] [Indexed: 10/05/2023] Open
Abstract
We report the experimental resonance enhanced multiphoton ionization spectrum of isoquinoline between 315 and 310 nm, along with correlated electronic structure calculations on the ground and excited states of this species. This spectral region spans the origin transitions to a π-π* excited state, which previous work has suggested to be vibronically coupled with a lower lying singlet n-π* state. Our computational results corroborate previous density functional theory calculations that predict the vertical excitation energy for the n-π* state to be higher than the π-π* state; however, we find an increase in the C-N-C angle brings the n-π* state below the energy of the π-π* state. The calculations find two out-of-plane vibrational modes of the n-π* state, which may be brought into near resonance with the π-π* state as the C-N-C bond angle increases. Therefore, the C-N-C bond angle may be important in activating vibronic coupling between the states. We fit the experimental rotational contour with a genetic algorithm to determine the excited state rotational constants and orientation of the transition dipole moment. The fits show a mostly in-plane polarized transition, and the projection of the transition dipole moment in the a-b plane is about 84° away from the a axis. These results are consistent with the prediction of our electronic structure calculations for the transition dipole moment of the π-π* excited state.
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Affiliation(s)
- Timothy J Krogmeier
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 61630, USA
| | - Emerson S Pappas
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, USA
| | - Kylie A Reardon
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, USA
| | - Marcos R Rivera
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, USA
| | - Kade Head-Marsden
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 61630, USA
| | - Bradley F Parsons
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, USA
| | - Anthony W Schlimgen
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 61630, USA
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2
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Tropane and related alkaloid skeletons via a radical [3+3]-annulation process. Commun Chem 2022; 5:57. [PMID: 36697883 PMCID: PMC9814087 DOI: 10.1038/s42004-022-00671-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 03/25/2022] [Indexed: 01/28/2023] Open
Abstract
Tropanes and related bicyclic alkaloids are highly attractive compounds possessing a broad biological activity. Here we report a mild and simple protocol for the synthesis of N-arylated 8-azabicyclo[3.2.1]octane and 9-azabicyclo[3.3.1]nonane derivatives. It provides these valuable bicyclic alkaloid skeletons in good yields and high levels of diastereoselectivity from simple and readily available starting materials using visible-light photoredox catalysis. These bicyclic aniline derivatives are hardly accessible via the classical Robinson tropane synthesis and represent a particularly attractive scaffold for medicinal chemistry. This unprecedented annulation process takes advantage of the unique reactivity of ethyl 2-(acetoxymethyl)acrylate as a 1,3-bis radical acceptor and of cyclic N,N-dialkylanilines as radical 1,3-bis radical donors. The success of this process relies on efficient electron transfer processes and highly selective deprotonation of aminium radical cations leading to the key α-amino radical intermediates.
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3
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Zhang D, Zhou X, Liu R, Li M, Li X, Jiang R, Nie H, Zhang S. Josiphos-type binaphane ligands for the asymmetric Ir-catalyzed hydrogenation of acyclic aromatic N-aryl imines. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2019.105906] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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4
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Lin NP, Chein RJ. Total synthesis and absolute structure of N55, a positive modulator of GLP-1 signaling. Org Biomol Chem 2020; 18:8899-8907. [DOI: 10.1039/d0ob01722a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The absolute structure of N55, a positive modulator of Glucagon-like peptide-1 (GLP-1) signaling, was determined by a 7-step total synthesis with 29% overall yield.
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Affiliation(s)
- Nai-Pin Lin
- Institute of Chemistry
- Academia Sinica
- Taipei 11529
- Taiwan
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5
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Efficient lipase-catalysed route for the kinetic resolution of salsolidine and its ß-carboline analogue. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.10.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Yang P, Lim LH, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Amination of Ketones with Both Arylamines and Benzhydrazide. Angew Chem Int Ed Engl 2016; 55:12083-7. [DOI: 10.1002/anie.201606821] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Peng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Li Hui Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Pratanphorn Chuanprasit
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hajime Hirao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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7
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Yang P, Lim LH, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Amination of Ketones with Both Arylamines and Benzhydrazide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606821] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Peng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Li Hui Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Pratanphorn Chuanprasit
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hajime Hirao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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8
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Soeta T, Ishizaka T, Ukaji Y. Chiral NHC Ligands Bearing a Pyridine Moiety in Copper-Catalyzed 1,2-Addition of Dialkylzinc Reagents to β-Aryl-α,β-unsaturated N-Tosylaldimines. J Org Chem 2016; 81:2817-26. [DOI: 10.1021/acs.joc.6b00093] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takahiro Soeta
- Division of Material Chemistry, Graduate School of Natural Science
and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Tomohiro Ishizaka
- Division of Material Chemistry, Graduate School of Natural Science
and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Yutaka Ukaji
- Division of Material Chemistry, Graduate School of Natural Science
and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
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9
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Affiliation(s)
- Ken-ichi Yamada
- Graduate School of Pharmaceutical Sciences; Kyoto University; Kyoto Japan
| | - Kiyoshi Tomioka
- Department of Medicinal Chemistry; Faculty of Pharmaceutical Sciences; Doshisha Women's College of Liberal Arts; Kyoto Japan
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10
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Rhodium catalyzed three-component reaction of aldehyde, boronic acid, and sulfonamides: a facile one-pot synthesis of diarylmethylamines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.08.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Dynamics of the Lithium Amide/Alkyllithium Interactions: Mixed Dimers and Beyond. TOP ORGANOMETAL CHEM 2014. [DOI: 10.1007/3418_2014_75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Chang M, Liu S, Huang K, Zhang X. Direct Catalytic Asymmetric Reductive Amination of Simple Aromatic Ketones. Org Lett 2013; 15:4354-7. [DOI: 10.1021/ol401851c] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mingxin Chang
- Department of Chemistry and Chemical Biology & Department of Medicinal Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Shaodong Liu
- Department of Chemistry and Chemical Biology & Department of Medicinal Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Kexuan Huang
- Department of Chemistry and Chemical Biology & Department of Medicinal Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Xumu Zhang
- Department of Chemistry and Chemical Biology & Department of Medicinal Chemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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13
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A convergent and stereoselective total synthesis of (−)-crispine A, (−)-benzo[a]quinolizidine and (−)-salsolidine. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.05.132] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Oulyadi H, Fressigné C, Yuan Y, Maddaluno J, Harrison-Marchand A. Structure of the Mixed Aggregates between a Chiral Lithium Amide and Phenyllithium or Vinyllithium. Organometallics 2012. [DOI: 10.1021/om300352p] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hassan Oulyadi
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Catherine Fressigné
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Yi Yuan
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Jacques Maddaluno
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
| | - Anne Harrison-Marchand
- Laboratoire COBRA de l’Université de Rouen, INSA de Rouen et CNRS, UMR 6014 & FR 3038, IRCOF, Rue Tesnière, 76821 Mont St Aignan Cédex, France
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15
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Fleury-Brégeot N, de la Fuente V, Castillón S, Claver C. Highlights of Transition Metal-Catalyzed Asymmetric Hydrogenation of Imines. ChemCatChem 2010. [DOI: 10.1002/cctc.201000078] [Citation(s) in RCA: 231] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Li W, Hou G, Chang M, Zhang X. Highly Efficient and Enantioselective Iridium-Catalyzed Asymmetric Hydrogenation of N-Arylimines. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900692] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Hao X, Kuriyama M, Chen Q, Yamamoto Y, Yamada KI, Tomioka K. Steric Tuning of the Amidomonophosphane-Rhodium(I) Catalyst in Asymmetric Addition of Arylboroxines to N-Phosphinoyl Aldimines. Org Lett 2009; 11:4470-3. [DOI: 10.1021/ol901866y] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xinyu Hao
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan and The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, Heilongjiang, 150080, P. R. China
| | - Masami Kuriyama
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan and The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, Heilongjiang, 150080, P. R. China
| | - Qian Chen
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan and The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, Heilongjiang, 150080, P. R. China
| | - Yasutomo Yamamoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan and The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, Heilongjiang, 150080, P. R. China
| | - Ken-ichi Yamada
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan and The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, Heilongjiang, 150080, P. R. China
| | - Kiyoshi Tomioka
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan and The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, Heilongjiang, 150080, P. R. China
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18
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Yamada KI, Tomioka K. Copper-catalyzed asymmetric alkylation of imines with dialkylzinc and related reactions. Chem Rev 2008; 108:2874-86. [PMID: 18652515 DOI: 10.1021/cr078370u] [Citation(s) in RCA: 245] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ken-ichi Yamada
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo, Kyoto 606-8501, Japan
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19
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Denmark SE, Nakajima N, Stiff CM, Nicaise OJC, Kranz M. Studies on the Bisoxazoline and (-)-Sparteine Mediated Enantioselective Addition of Organolithium Reagents to Imines. Adv Synth Catal 2008; 350:1023-1045. [PMID: 19809587 PMCID: PMC2756708 DOI: 10.1002/adsc.200800017] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The enantioselective addition of organolithium reagents to N-anisyl aldimines promoted by chiral bisoxazolines and (-)-sparteine as external ligands is described. This reaction proceeds readily with a wide range of aldimine substrates (aliphatic, aromatic, olefinic) and organolithium nucleophiles (Me, n-Bu, Ph, vinyl) in excellent yields (81-99%) and with high enantioselectivities (up to 95.5:4.5 er). The external ligands can be used in substoichiometric amounts albeit with slightly attenuated enantioselectivities. A systematic evaluation of the structural features of the bisoxazolines revealed a primary contribution from the substituent at C(4) and a secondary influence from the bridging substituents. A computational analysis (PM3) provided a clear rationalization for the origin of enantioselectivity.
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Affiliation(s)
- Scott E. Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois Urbana, IL 61801
| | - Noriyuki Nakajima
- Roger Adams Laboratory, Department of Chemistry, University of Illinois Urbana, IL 61801
| | - Cory M. Stiff
- Roger Adams Laboratory, Department of Chemistry, University of Illinois Urbana, IL 61801
| | - Olivier J.-C. Nicaise
- Roger Adams Laboratory, Department of Chemistry, University of Illinois Urbana, IL 61801
| | - Michael Kranz
- Roger Adams Laboratory, Department of Chemistry, University of Illinois Urbana, IL 61801
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20
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Shang G, Yang Q, Zhang X. Rh-Catalyzed Asymmetric Hydrogenation of α-Aryl Imino Esters: An Efficient Enantioselective Synthesis of Aryl Glycine Derivatives. Angew Chem Int Ed Engl 2006; 45:6360-2. [PMID: 16937425 DOI: 10.1002/anie.200601540] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Gao Shang
- Department of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, PA 16802, USA
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21
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Shang G, Yang Q, Zhang X. Rh-Catalyzed Asymmetric Hydrogenation of α-Aryl Imino Esters: An Efficient Enantioselective Synthesis of Aryl Glycine Derivatives. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200601540] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Duan HF, Jia YX, Wang LX, Zhou QL. Enantioselective Rh-Catalyzed Arylation of N-Tosylarylimines with Arylboronic Acids. Org Lett 2006; 8:2567-9. [PMID: 16737315 DOI: 10.1021/ol060755w] [Citation(s) in RCA: 139] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The asymmetric arylation of N-tosylarylimines with arylboronic acids was realized by using rhodium/(S)-ShiP as catalyst. The reaction proceeded in aqueous toluene to give diarylmethylamines in good yields with up to 96% ee. [reaction: see text]
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Affiliation(s)
- Hai-Feng Duan
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
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23
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Simple 1,2-Diamine Ligands for Asymmetric Addition of Aryllithium Reagents to Imines. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500447] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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De Lamo Marin S, Martens T, Mioskowski C, Royer J. Efficient N-p-Methoxyphenyl Amine Deprotection through Anodic Oxidation. J Org Chem 2005; 70:10592-5. [PMID: 16323880 DOI: 10.1021/jo051867o] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] A new method of deprotection of N-p-methoxyphenylamines using anodic oxidation in acidic medium is presented. The process furnishes a high yield of amine and is compatible with several oxidable functional groups.
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Affiliation(s)
- Sandra De Lamo Marin
- Laboratoire de chimie bioorganique, UMR 7514 CNRS-Université Louis Pasteur, Faculty of Pharmacy, 74 route du Rhin, 67401 Illkirch Cedex, France
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25
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Kizirian JC, Cabello N, Pinchard L, Caille JC, Alexakis A. Enantioselective addition of methyllithium to aromatic imines catalyzed by C2 symmetric tertiary diamines. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.07.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Sakai T, Doi H, Kawamoto Y, Yamada KI, Tomioka K. Structure tuning of lithium amide for asymmetric 1,4-addition to cinnamate and subsequent demasking. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.10.050] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Soeta T, Kuriyama M, Tomioka K. Catalytic Asymmetric Conjugate Addition of Dialkylzinc Reagents to β-Aryl-α,β-unsaturated N-2,4,6-Triisopropylphenylsulfonylaldimines with Use of N-Boc-l-Val-Connected Amidophosphane-Copper(I) Catalyst. J Org Chem 2004; 70:297-300. [PMID: 15624936 DOI: 10.1021/jo0484225] [Citation(s) in RCA: 46] [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
Asymmetric conjugate addition of dialkylzinc to alpha,beta-unsaturated N-2,4,6-triisopropylphenylsulfonylaldimines 9 was catalyzed by 5 mol % N-Boc-L-valine-connected amidophosphane 5a-Cu(MeCN)(4)BF(4) in the presence of 4 angstroms MS in toluene to afford, after hydrolysis of an imine to an aldehyde through a short alumina column and reduction with sodium borohydride, the corresponding beta-alkylated alkanols 10 with 67-91% ee in reasonably high yields.
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Affiliation(s)
- Takahiro Soeta
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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28
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Hayashi T, Kawai M, Tokunaga N. Asymmetric Synthesis of Diarylmethyl Amines by Rhodium-Catalyzed Asymmetric Addition of Aryl Titanium Reagents to Imines. Angew Chem Int Ed Engl 2004; 43:6125-8. [PMID: 15549756 DOI: 10.1002/anie.200461338] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tamio Hayashi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
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29
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Hayashi T, Kawai M, Tokunaga N. Asymmetric Synthesis of Diarylmethyl Amines by Rhodium-Catalyzed Asymmetric Addition of Aryl Titanium Reagents to Imines. Angew Chem Int Ed Engl 2004. [DOI: 10.1002/ange.200461338] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Głuszyńska A, Rozwadowska MD. Enantioselective addition of methyllithium to a prochiral imine—the substrate in the Pomeranz–Fritsch–Bobbitt synthesis of tetrahydroisoquinoline derivatives mediated by chiral monooxazolines. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.tetasy.2004.08.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Affiliation(s)
- Maria Chrzanowska
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
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32
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Cabello N, Kizirian JC, Alexakis A. Enantioselective addition of aryllithium reagents to aromatic imines mediated by 1,2-diamine ligands. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.04.100] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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33
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Improved asymmetric synthesis of dopamine D1 full agonist, dihydrexidine, employing chiral ligand-controlled asymmetric conjugate addition of aryllithium to a nitroalkene. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.03.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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34
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35
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Tomioka K. [Asymmetric reactions based on activation and structure control of molecule--asymmetric reaction of lithiated nucleophiles]. YAKUGAKU ZASSHI 2004; 124:43-53. [PMID: 14978947 DOI: 10.1248/yakushi.124.43] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The methodology we developed relies on an external chiral coordinating reagent that forms a deaggregated chelate complex with organolithium reagents. Under the positive control of a chiral dimethyl ether of stilbenediol 4, an asymmetric conjugate addition reaction of organolithium reagents with unsaturated imines and esters proceeded successfully to yield the corresponding addition products with reasonably high stereoselectivity. The sense of stereochemistry is predictable based on a coordination model. The methodology has been extended to a catalytic asymmetric 1,2-addition reaction of organolithium reagents with imines. An enantiotopic group differentiating the opening of cyclohexene oxide with organolithium was also mediated by a chiral ligand. The asymmetric Horner-Wadsworth-Emmons reaction of phosphonates and Peterson reaction of alpha-silylester with 4-substituted cyclohexanone were another successful extension of the methodology. A three-component reagent of lithium ester enolate, lithium amide, and chiral diether reacts with imines to afford beta-lactam with reasonably high enantioselectivity. Tridentate aminoether ligands were also shown to affect the catalytic asymmetric addition of lithium ester enoaltes to imines, giving beta-lactams with high enantioselectivity. Asymmetric conjugate addition of lithium amide to enoates was mediated by a chiral diether ligand to give the beta-aminoester with high yield and enatioselectivity. The methodology has been successfully applied to an asymmetric synthesis of biologically potent compounds. Dihydrexidine, a promising anti-Parkinsonism candidate, and salsolidine, a representative isoquinoline alkaloid, have been synthesized using asymmetric addition reactions of organolithium reagents as the key steps.
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Affiliation(s)
- Kiyoshi Tomioka
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
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36
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Yamashita M, Yamada KI, Tomioka K. Construction of Arene-Fused-Piperidine Motifs by Asymmetric Addition of 2-Trityloxymethylaryllithiums to Nitroalkenes: The Asymmetric Synthesis of a Dopamine D1 Full Agonist, A-86929. J Am Chem Soc 2004; 126:1954-5. [PMID: 14971926 DOI: 10.1021/ja031760n] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The straightforward methodology for the construction of chiral arene-fused-piperidine motifs using a highly enantioselective addition of 2-trityloxymethylaryllithiums to cyclic and acyclic nitroalkenes has been developed. The versatility of the process was highlighted by the first asymmetric synthesis of a dopamine D1 full agonist, A-86929.
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Affiliation(s)
- Mitsuaki Yamashita
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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37
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Iguchi M, Doi H, Hata S, Tomioka K. Chiral ligand-controlled asymmetric conjugate addition of alpha-trimethylsilanylacetate to acyclic and cyclic enones. Chem Pharm Bull (Tokyo) 2004; 52:125-9. [PMID: 14709879 DOI: 10.1248/cpb.52.125] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The reaction of lithium ester enolate with enones provides a challenge for chemoselectivity, that is, discrimination between a conjugate addition and a 1,2-addition. Asymmetric conjugate addition of a lithium enolate of alpha-trimethylsilanylacetate to acyclic and cyclic alpha,beta-unsaturated ketones was mediated by an external chiral ligand to give the corresponding 1,4-adducts in good enantioselectivity of 74% and good chemoselectivity.
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Affiliation(s)
- Mayu Iguchi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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38
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Soeta T, Nagai K, Fujihara H, Kuriyama M, Tomioka K. Asymmetric Alkylation of N-Toluenesulfonylimines with Dialkylzinc Reagents Catalyzed by Copper−Chiral Amidophosphine. J Org Chem 2003; 68:9723-7. [PMID: 14656099 DOI: 10.1021/jo035234q] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthetic procedure of a chiral amidophosphine ligand 5 bearing two bulky substituents, 2,4,6-trimethylphenylmethyl or 2,4,6-triisopropylphenylmethyl groups, on the pyrrolidine ring was improved by employing the borane-THF reduction of the lactam-alcohol intermediate 8. The resulting amino alcohol was selectively acylated to give an amide-alcohol 11, which was then converted to the chloride 12 in 55-73% yields by the treatment with methanesulfonyl chloride in collidine. The reaction of the chloride 12 with NaPPh(2) in dioxane-THF gave an amidophosphine 5 in an acceptably high 82-83% yields. Addition of a hexane solution of dialkylzinc reagent to a mixture of catalytic amount of an amidophosphine 5, copper species, and N-toluenesulfonylimine 1a of benzaldehyde in toluene provided a solution which gave the alkylated amide 3 in high yield and enantioselectivity up to 96%. A survey of copper sources and solvents concluded that copper(II) ditriflate and copper(I) triflate-benzene complex as good copper sources and toluene as a choice of solvent. N-Toluenesulfonylimines 1a-e of arylaldehydes, furfural, and alkanals were successfully ethylated with diethylzinc to give the corresponding N-toluenesulfonylamides 3aE-eE in satisfactorily good 69-97% yields and high 86-96% enantioselectivities.
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Affiliation(s)
- Takahiro Soeta
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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39
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Tanaka Y, Nishimura K, Tomioka K. Chiral ligand-controlled catalytic asymmetric epoxidation of α,β-unsaturated carbonyl compounds with peroxide. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00658-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Chi Y, Zhou YG, Zhang X. Highly enantioselective reductive amination of simple aryl ketones catalyzed by Ir-f-Binaphane in the presence of titanium(IV) isopropoxide and iodine. J Org Chem 2003; 68:4120-2. [PMID: 12737606 DOI: 10.1021/jo026856z] [Citation(s) in RCA: 155] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using an Ir-f-Binaphane complex as the catalyst, complete conversions and high enantioselectivies (up to 96% ee) were achieved in the asymmetric reductive amination of aryl ketones in the presence of Ti(O(i)()Pr)(4) and I(2). A simple and efficient method of synthesizing chiral primary amines has been realized.
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Affiliation(s)
- Yongxiang Chi
- Department of Chemistry, The Pennsylvania State University, University Park 16802, USA
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41
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Vicario JL, Badı́a D, Carrillo L, Anakabe E. A general procedure for the asymmetric synthesis of 3-aryl-1,2,3,4-tetrahydroisoquinolines. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0957-4166(02)00821-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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42
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Nishimura K, Tomioka K. Asymmetric conjugate addition of arylthiols to enoates and its application to organic synthesis of biologically potent compounds. YAKUGAKU ZASSHI 2003; 123:9-18. [PMID: 12607940 DOI: 10.1248/yakushi.123.9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
As a part of our studies aimed at asymmetric catalytic reactions by using an external chiral ligand, we have developed a catalytic asymmetric addition reaction of an arylthiol to alpha,beta-unsaturated esters under the control of an external chiral ligand. The characteristic of our technology is a double activation of a thiol by lithiation and chelate formation with a chiral tridentate amino diether ligand, which simultaneously and effectively controls a stereochemistry of the reaction. One significant feature of an arylthiol is a bulky 2-substitution on aryl group, which enables the formation of a really reactive monomeric thiolate species. s-Cis conformation and capability of electron lone pair-differentiating coordination of a carbonyl oxygen to lithium are structural requirements of the substrates for high enantioselectivity. The enantioselectivity came up to 97% under the cited conditions. Asymmetric protonation of a transient enolate, generated by conjugate addition of a lithium thiolate to an enoate, was also realized. The stereochemistry of the protonation was controlled by the conformation of initially formed transient enolate in a 1,2-asymmetric induction manner. This technology enabled the asymmetric synthesis of (S)-naproxene. Stereoselective tandem C-S and C-C bond-forming reaction was developed as a logical extension by trapping the transient enolate intermediate with an aldehyde as a carbo-electrophile in the presence of phenylthiotrimethylsilane as an equilibrium-shift reagent. This tandem reaction was extended to a stereoselective cyclization of omega-oxo-alpha,beta-unsaturated esters initiated by a lithium thiolate. Stereoselectivity of both tandem inter- and intramolecular reaction is predictable by an allylic strain-controlled conformation model of the enolate, in which an approach of aldehyde takes place anti to C-S bond through coordination of an aldehyde oxygen to lithium. Total synthesis of (-)-neplanocin A was achieved by using the tandem cyclization as a key tool for the direct construction of a five-membered carbocycle where every carbon is functionalized.
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Affiliation(s)
- Katsumi Nishimura
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
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43
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Iguchi M, Yamada KI, Tomioka K. Enantioselective Conjugate Addition and 1,2-Addition to C=N of Organolithium Reagents. TOP ORGANOMETAL CHEM 2003. [DOI: 10.1007/3-540-36117-0_3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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44
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Yamada KI, Fujihara H, Yamamoto Y, Miwa Y, Taga T, Tomioka K. Radical addition of ethers to imines initiated by dimethylzinc. Org Lett 2002; 4:3509-11. [PMID: 12323056 DOI: 10.1021/ol0266572] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ethers undergo addition to imines in the presence of dimethylzinc and air through a radical process. [reaction: see text]
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Affiliation(s)
- Ken-ichi Yamada
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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45
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Granander J, Sott R, Hilmersson G. Asymmetric addition of n-butyllithium to aldehydes: new insights into the reactivity and enantioselectivity of the chiral amino ether accelerated reaction. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00378-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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46
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Gremmen C, Wanner MJ, Koomen GJ. Enantiopure tetrahydroisoquinolines via N -sulfinyl Pictet–Spengler reactions. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)01854-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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47
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Arrasate S, Lete E, Sotomayor N. Synthesis of enantiomerically enriched amines by chiral ligand mediated addition of organolithium reagents to imines. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0957-4166(01)00344-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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48
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Fujihara H, Nagai K, Tomioka K. Copper−Amidophosphine Catalyst in Asymmetric Addition of Organozinc to Imines. J Am Chem Soc 2000. [DOI: 10.1021/ja005629g] [Citation(s) in RCA: 145] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hidetaka Fujihara
- Graduate School of Pharmaceutical Sciences Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kazushige Nagai
- Graduate School of Pharmaceutical Sciences Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kiyoshi Tomioka
- Graduate School of Pharmaceutical Sciences Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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