1
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Richard F, Clark P, Hannam A, Keenan T, Jean A, Arseniyadis S. Pd-Catalysed asymmetric allylic alkylation of heterocycles: a user's guide. Chem Soc Rev 2024; 53:1936-1983. [PMID: 38206332 DOI: 10.1039/d3cs00856h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
This review provides an in-depth analysis of recent advances and strategies employed in the Pd-catalysed asymmetric allylic alkylation (Pd-AAA) of nucleophilic prochiral heterocycles. The review is divided into sections each focused on a specific family of heterocycle, where optimisation data and reaction scope have been carefully analysed in order to bring forward specific reactivity and selectivity trends. The review eventually opens on how computer-based technologies could be used to predict an ideally matched catalytic system for any given substrate. This user-guide targets chemists from all horizons interested in running a Pd-AAA reaction for the preparation of highly enantioenriched heterocyclic compounds.
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Affiliation(s)
- François Richard
- Queen Mary University of London, Department of Chemistry, Mile End Road, E1 4NS, London, UK.
| | - Paul Clark
- Queen Mary University of London, Department of Chemistry, Mile End Road, E1 4NS, London, UK.
| | - Al Hannam
- Queen Mary University of London, Department of Chemistry, Mile End Road, E1 4NS, London, UK.
| | - Thomas Keenan
- Queen Mary University of London, Department of Chemistry, Mile End Road, E1 4NS, London, UK.
| | - Alexandre Jean
- Industrial Research Centre, Oril Industrie, 13 rue Desgenétais, 76210, Bolbec, France
| | - Stellios Arseniyadis
- Queen Mary University of London, Department of Chemistry, Mile End Road, E1 4NS, London, UK.
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2
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Choi A, Meijer AJHM, Silvestri IP, Coldham I. Kinetic Resolution of 2-Aryl-4-methylenepiperidines toward Enantioenriched Functionalizable Piperidine Fragments. J Org Chem 2022; 87:8819-8823. [PMID: 35699313 PMCID: PMC9490820 DOI: 10.1021/acs.joc.2c00862] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
![]()
The
base n-BuLi with sparteine allows a kinetic
resolution of N-Boc-2-aryl-4-methylenepiperidines.
The 2,2-disubstituted products and recovered starting materials were
isolated with high enantiomeric ratios. From VT-NMR spectroscopy and
DFT studies, the rate of rotation of the N-Boc group
is fast. Lithiation and trapping of the enantioenriched starting materials
gave 2,2-disubstituted piperidines with retention of stereochemistry.
Functionalization of the 4-methylene group led to a variety of 2,4-disubstituted
piperidines without loss of enantiopurity that could be useful building
blocks for drug discovery.
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Affiliation(s)
- Anthony Choi
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Anthony J H M Meijer
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | | | - Iain Coldham
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
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3
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Liu W, Wang D, Zhang D, Yang X. Catalytic Kinetic Resolution and Desymmetrization of Amines. Synlett 2022. [DOI: 10.1055/a-1790-3230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Optically active amines represent critically important subunits in bioactive natural products and pharmaceuticals, as well as key scaffolds in chiral catalysts and ligands. Kinetic resolution of racemic amines and enantioselective desymmetrization of prochiral amines have proved to be efficient methods to access enantioenriched amines, especially when the racemic or prochiral amines were easy to prepare while the chiral ones are difficult to be accessed directly. In this review, we systematically summarized the development of kinetic resolution and desymmetrization of amines through nonenzymatic asymmetric catalytic approaches in the last two decades.
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Affiliation(s)
- Wei Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Donglei Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Dekun Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
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4
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Liu LX, Huang WJ, Xie QX, Wu B, Yu CB, Zhou YG. Dynamic Kinetic Resolution of Flavonoids via Asymmetric Allylic Alkylation: Construction of Two Contiguous Stereogenic Centers on Nucleophiles. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03732] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Li-Xia Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Wen-Jun Huang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Qing-Xian Xie
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Bo Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Chang-Bin Yu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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5
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Pàmies O, Margalef J, Cañellas S, James J, Judge E, Guiry PJ, Moberg C, Bäckvall JE, Pfaltz A, Pericàs MA, Diéguez M. Recent Advances in Enantioselective Pd-Catalyzed Allylic Substitution: From Design to Applications. Chem Rev 2021; 121:4373-4505. [PMID: 33739109 PMCID: PMC8576828 DOI: 10.1021/acs.chemrev.0c00736] [Citation(s) in RCA: 201] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Indexed: 12/30/2022]
Abstract
This Review compiles the evolution, mechanistic understanding, and more recent advances in enantioselective Pd-catalyzed allylic substitution and decarboxylative and oxidative allylic substitutions. For each reaction, the catalytic data, as well as examples of their application to the synthesis of more complex molecules, are collected. Sections in which we discuss key mechanistic aspects for high selectivity and a comparison with other metals (with advantages and disadvantages) are also included. For Pd-catalyzed asymmetric allylic substitution, the catalytic data are grouped according to the type of nucleophile employed. Because of the prominent position of the use of stabilized carbon nucleophiles and heteronucleophiles, many chiral ligands have been developed. To better compare the results, they are presented grouped by ligand types. Pd-catalyzed asymmetric decarboxylative reactions are mainly promoted by PHOX or Trost ligands, which justifies organizing this section in chronological order. For asymmetric oxidative allylic substitution the results are grouped according to the type of nucleophile used.
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Affiliation(s)
- Oscar Pàmies
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Jèssica Margalef
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Santiago Cañellas
- Discovery
Sciences, Janssen Research and Development, Janssen-Cilag, S.A. Jarama 75A, 45007, Toledo, Spain
| | - Jinju James
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Eric Judge
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Patrick J. Guiry
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Christina Moberg
- KTH
Royal Institute of Technology, Department of Chemistry, Organic Chemistry, SE 100 44 Stockholm, Sweden
| | - Jan-E. Bäckvall
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE 106 91 Stockholm, Sweden
| | - Andreas Pfaltz
- Department
of Chemistry, University of Basel. St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Inorgànica i Orgànica, Universitat de Barcelona. 08028 Barcelona, Spain
| | - Montserrat Diéguez
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
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6
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Jaillet A, Darcel C, Bayardon J, Schlachter A, Salomon C, Rousselin Y, Harvey P, Jugé S. Design of P-Chirogenic Aminophosphine–Phosphinite Ligands at Both Phosphorus Centers: Origin of Enantioselectivities in Pd-Catalyzed Allylic Reactions. J Org Chem 2020; 85:14391-14410. [DOI: 10.1021/acs.joc.0c00536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Antonin Jaillet
- Université de Bourgogne-Franche-Comté, Institut de Chimie Moléculaire (ICMUB-OCS, UMR-CNRS 6302), BP 47870, Dijon 21078 Cedex, France
| | - Christophe Darcel
- Université de Rennes, Institut des Sciences Chimiques de Rennes (ISCR, UMR-CNRS 6626), 35000 Rennes, France
| | - Jérôme Bayardon
- Université de Bourgogne-Franche-Comté, Institut de Chimie Moléculaire (ICMUB-OCS, UMR-CNRS 6302), BP 47870, Dijon 21078 Cedex, France
| | - Adrien Schlachter
- Université de Sherbrooke, Département de Chimie, Sherbrooke, Quebec, Canada J1K2R1
| | - Christine Salomon
- Université de Bourgogne-Franche-Comté, Institut de Chimie Moléculaire (ICMUB-OCS, UMR-CNRS 6302), BP 47870, Dijon 21078 Cedex, France
| | - Yoann Rousselin
- Université de Bourgogne-Franche-Comté, Institut de Chimie Moléculaire (ICMUB-OCS, UMR-CNRS 6302), BP 47870, Dijon 21078 Cedex, France
| | - Pierre Harvey
- Université de Sherbrooke, Département de Chimie, Sherbrooke, Quebec, Canada J1K2R1
| | - Sylvain Jugé
- Université de Bourgogne-Franche-Comté, Institut de Chimie Moléculaire (ICMUB-OCS, UMR-CNRS 6302), BP 47870, Dijon 21078 Cedex, France
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7
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Mohammadkhani L, Heravi MM. Applications of Transition-Metal-Catalyzed Asymmetric Allylic Substitution in Total Synthesis of Natural Products: An Update. CHEM REC 2020; 21:29-68. [PMID: 33206466 DOI: 10.1002/tcr.202000086] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 01/14/2023]
Abstract
Metal-catalyzed asymmetric allylic substitution (AAS) reaction is one of the most synthetically useful reactions catalyzed by metal complexes for the formation of carbon-carbon and carbon-heteroatom bonds. It comprises the substitution of allylic substrates with a wide range of nucleophiles or SN 2'-type allylic substitution, which results in the formation of the above-mentioned bonds with high levels of enantioselective induction. AAS reaction tolerates a broad range of functional groups, thus has been successfully applied in the asymmetric synthesis of a wide range of optically pure compounds. This reaction has been extensively used in the total synthesis of several complex molecules, especially natural products. In this review, we try to highlight the applications of metal (Pd, Ir, Mo, or Cu)-catalyzed AAS reaction in the total synthesis of the biologically active natural products, as a key step, updating the subject from 2003 till date.
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Affiliation(s)
- Leyla Mohammadkhani
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
| | - Majid M Heravi
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
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8
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Mohajer F, Ziarani GM, Moradi R. The Study of Several Synthesis Methods of Indolizidine (±)-209I and (±)-209B as Natural Alkaloids. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200226113022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Natural products have received much attention due to their importance and
application. Indolizidine, categorized as an alkaloid, has several biological activities. The
synthesis of natural compounds such as indolizidines has attracted much attention from
many chemists’ and researchers’ perspectives. There are many areas to be explored in
this subject; that is why synthesizing indolizidine 209I and (±)-indolizidine 209B as
natural compounds have received much consideration. This review discloses the procedures
and methodology to provide (±)-indolizidine 209I and 209B due to the importance
of indolizidines.
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Affiliation(s)
| | | | - Razieh Moradi
- Department of Chemistry, Alzahra University, Tehran, Iran
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9
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Brønsted acid-mediated annulations of pyrroles featuring N-tethered α,β-unsaturated ketones and esters: Total syntheses of (±)-tashiromine and (±)-indolizidine 209I. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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10
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Li Y, Li J, Ding H, Li A. Recent advances on the total synthesis of alkaloids in mainland China. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
AbstractAlkaloids are a large family of natural products that mostly contain basic nitrogen atoms. Because of their intriguing structures and important functions, they have long been popular targets for synthetic organic chemists. China's chemists have made significant progress in the area of alkaloid synthesis over past decades. In this article, selected total syntheses of alkaloids from research groups in mainland China during the period 2011–16 are highlighted.
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Affiliation(s)
- Yong Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, China
| | - Jian Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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11
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Wang H, Zhou W, Tao M, Hu A, Zhang J. Functionalized Tetrahydropyridines by Enantioselective Phosphine-Catalyzed Aza-[4 + 2] Cycloaddition of N-Sulfonyl-1-aza-1,3-dienes with Vinyl Ketones. Org Lett 2017; 19:1710-1713. [DOI: 10.1021/acs.orglett.7b00489] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Huamin Wang
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Wei Zhou
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Mengna Tao
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Anjing Hu
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
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12
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Kandepedu N, Abrunhosa-Thomas I, Troin Y. Stereoselective strategies for the construction of polysubstituted piperidinic compounds and their applications in natural products’ synthesis. Org Chem Front 2017. [DOI: 10.1039/c7qo00262a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An abridged and far-reaching review communication on the construction of the polysubstituted piperidinic core using diverse methodologies for the benefit of organic chemists interested in the total synthesis of biologically active compounds.
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Affiliation(s)
- Nishanth Kandepedu
- Université Clermont Auvergne
- SIGMA Clermont
- Institut de Chimie de Clermont-Ferrand
- F-63000 Clermont-Ferrand
- France
| | - Isabelle Abrunhosa-Thomas
- Université Clermont Auvergne
- SIGMA Clermont
- Institut de Chimie de Clermont-Ferrand
- F-63000 Clermont-Ferrand
- France
| | - Yves Troin
- Université Clermont Auvergne
- SIGMA Clermont
- Institut de Chimie de Clermont-Ferrand
- F-63000 Clermont-Ferrand
- France
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13
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Sorrentino E, Connon SJ. Enantioselective Alkylative Kinetic Resolution of 2-Oxindole-Derived Enolates Promoted by Bifunctional Phase Transfer Catalysts. Org Lett 2016; 18:5204-5207. [DOI: 10.1021/acs.orglett.6b02398] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Emiliano Sorrentino
- Trinity Biomedical Sciences
Institute, School of Chemistry, The University of Dublin, Trinity College, Dublin 2, Ireland
| | - Stephen J. Connon
- Trinity Biomedical Sciences
Institute, School of Chemistry, The University of Dublin, Trinity College, Dublin 2, Ireland
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14
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Chattopadhyay AK, Hanessian S. Cyclic enaminones. Part I: stereocontrolled synthesis using diastereoselective and catalytic asymmetric methods. Chem Commun (Camb) 2016; 51:16437-49. [PMID: 26490402 DOI: 10.1039/c5cc05891k] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclic enaminones are versatile intermediates to construct a variety of azacyclic frameworks and have been widely used in alkaloid synthesis. Here, we summarize three approaches for stereoselective syntheses of cyclic enaminones and their functionalized derivatives. These include chiral substrates (chirons) as starting materials, syntheses employing non-catalytic (stoichiometric) reagents, and catalytic asymmetric methods.
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Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry, Université de Montréal, Station Centre Ville, C.P. 6128, Montreal, QC H3C 3J7, Canada.
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal, Station Centre Ville, C.P. 6128, Montreal, QC H3C 3J7, Canada.
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15
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Chattopadhyay AK, Hanessian S. Cyclic enaminones. Part II: applications as versatile intermediates in alkaloid synthesis. Chem Commun (Camb) 2016; 51:16450-67. [PMID: 26490499 DOI: 10.1039/c5cc05892a] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Among many other strategies, the enaminone approach is an important strategy to construct and diversify the azacyclic core in various alkaloids syntheses. In this brief review we discuss the application of cyclic enaminones as building blocks, as well as potential intermediates in the total synthesis of selected alkaloids.
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Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry, Université de Montréal, Station Centre Ville, C. P. 6128, Montréal, Qc H3C 3J7, Canada.
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal, Station Centre Ville, C. P. 6128, Montréal, Qc H3C 3J7, Canada.
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16
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Okayama Y, Maruhashi K, Tsuji S, Mori A. Studies on Diastereoselective Functionalization, Optical Resolution, and Racemization Behaviors of Macrocyclic Bisimidazole of Winding-Vine-Shaped Molecular Asymmetry. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150164] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yoichi Okayama
- Department of Chemical Science and Engineering, Kobe University
| | | | - Satoru Tsuji
- Department of Chemical Science and Engineering, Kobe University
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University
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17
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Saito K, Moriya Y, Akiyama T. Chiral Phosphoric Acid Catalyzed Asymmetric Synthesis of 2-Substituted 2,3-Dihydro-4-quinolones by a Protecting-Group-Free Approach. Org Lett 2015; 17:3202-5. [PMID: 26102368 DOI: 10.1021/acs.orglett.5b01654] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chiral 2-substituted 2,3-dihydro-4-quinolones were synthesized based on the chiral phosphoric acid catalyzed intramolecular aza-Michael addition reaction using N-unprotected 2-aminophenyl vinyl ketones as substrates in good yields with high enantioselectivities.
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Affiliation(s)
- Kodai Saito
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Yuka Moriya
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
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18
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Enantioselective [4+2] cycloaddition reaction of α,β-unsaturated imine and methyl vinyl ketone catalyzed by chiral phosphine. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.076] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Li YJ, Hou CC, Chang KC. Total Synthesis of Indolizidine Alkaloids (-)-167B, (-)-209I, and (-)-223A by Using a Common Tricyclic Lactone. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Zhou Y, Yang Q, Shen J, Chen X, Peng Y, Gong Y. Merging Asymmetric Henry Reaction with Organocatalytic Cascade Reaction for the Construction of a Chiral Indolizidine Alkaloid Skeleton. J Org Chem 2015; 80:1446-56. [DOI: 10.1021/jo502379v] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yirong Zhou
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Qin Yang
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Jian Shen
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Xin Chen
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Yiyuan Peng
- Key Laboratory of Small Fuctional Organic Molecule, Ministry
of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
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21
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Ambala S, Thatikonda T, Sharma S, Munagala G, Yempalla KR, Vishwakarma RA, Singh PP. Cross-dehydrogenative coupling of α-C(sp3)–H of ethers/alkanes with C(sp2)–H of heteroarenes under metal-free conditions. Org Biomol Chem 2015; 13:11341-50. [DOI: 10.1039/c5ob01268f] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free cross-dehydrogenative coupling method between α-oxyalkyl/alkyl radicals and electron deficient heteroarenes is reported.
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Affiliation(s)
- Srinivas Ambala
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific and Innovative Research
| | - Thanusha Thatikonda
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific and Innovative Research
| | - Shweta Sharma
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
| | - Gurunadham Munagala
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific and Innovative Research
| | - Kushalava Reddy Yempalla
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific and Innovative Research
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific and Innovative Research
| | - Parvinder Pal Singh
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific and Innovative Research
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22
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Li H, Wan SL, Ding CH, Xu B, Hou XL. Kinetic resolution of 2-substituted-2,3-dihydrofurans by a palladium-catalyzed asymmetric Heck reaction. RSC Adv 2015. [DOI: 10.1039/c5ra17374d] [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] Open
Abstract
The kinetic resolution of 2-substituted-dihydrofurans via a Pd-catalyzed asymmetric Heck reaction was realized for the first time.
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Affiliation(s)
- Hao Li
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai
- China
| | - Shi-Li Wan
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Chang-Hua Ding
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Bin Xu
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai
- China
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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23
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Abstract
Concise and highly stereocontrolled total syntheses of racemic and enantiopure frog alkaloid 205B (1) were accomplished in 11 steps from 4-methoxypyridines 6 and 7 in overall yields of 8 and 8%, respectively. The assembly of the core of the natural product relies on a stereoselective Tsuji-Trost allylic amination reaction and a ring-closing metathesis. The synthesis features the use of an N-acylpyridinium salt reaction to introduce the first stereocenter and an unprecedented trifluoroacetic anhydride-mediated addition of an allylstannane to a vinylogous amide with complete facial selectivity. Deoxygenation of the C4 ketone proved difficult but was accomplished via a modified Barton-McCombie reaction in the presence of a catalytic amount of diphenyl diselenide.
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Affiliation(s)
| | - Daniel L. Comins
- Department of Chemistry, North
Carolina State University, Raleigh, North Carolina 27695-8204, United States
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