1
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Ketelboeter DR, Pappoppula M, Aponick A. Chemoselective Diazine Dearomatization: The Catalytic Enantioselective Dearomatization of Pyrazine. J Am Chem Soc 2024; 146:11610-11615. [PMID: 38619328 DOI: 10.1021/jacs.4c02979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Despite much progress in the area of dearomatization, the enantioselective dearomatization of heterocycles is limited to those with a single heteroatom. Here we report a highly enantioselective copper-catalyzed dearomatization of pyrazine, a diazine, leading to chiral C-substituted piperazines. When exposed to a chloroformate and an alkyne in the presence of a catalyst derived from a copper salt and the chiral ligand StackPhos, pyrazine is readily dearomatized to provide a 2,3-disubstituted dihydropyrazine as single diastereomer in high enantiomeric excess. Mechanistic studies support a noninnocent involvement of chloride ion preventing a second iminium alkynylation, thus enabling subsequent functionalization at the second reactive site. The synthetically useful dihydropyrazine products, obtained in up to 95% yield and 99% ee, can be further manipulated to form optically active C-substituted piperazines and C1-symmetric 1,2-diamines.
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Affiliation(s)
- Devin R Ketelboeter
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Mukesh Pappoppula
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Aaron Aponick
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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2
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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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3
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Fang W, Sun BB, Qin SC, Fang LP, Yu XR, Jiang HJ, Yu J. Enantioselective Access to Chiral 2,5-Diketopiperazines via Stereogenic-at-Cobalt(III)-Catalyzed Ugi-4CRs/Cyclization Sequences. J Org Chem 2023; 88:16024-16037. [PMID: 37917565 DOI: 10.1021/acs.joc.3c02013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
An asymmetric synthesis of chiral 2,5-diketopiperazines by the Ugi-4CR/cyclization is exhibited. The employment of catalytic anionic chiral Co(III) complexes delivered α-propiolyl aminoamides in high yields with excellent enantioselectivities (31 examples, up to 95% ee). The following treatment of Ugi-adducts with PPh3 leads to chiral 2,5-DKPs without significant loss of enantioselectivities (26 examples, up to 91% ee).
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Affiliation(s)
- Wei Fang
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Bing-Bing Sun
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Shi-Cheng Qin
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Li-Ping Fang
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Xin-Ran Yu
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Hua-Jie Jiang
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Jie Yu
- Department of Applied Chemistry, Anhui Province Engineering Laboratory for Green Pesticide Development and Application, and Anhui Province Key Laboratory of Crop Integrated Pest Management, Anhui Agricultural University, Hefei 230036, P. R. China
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4
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Xie R, Zhou H, Lu H, Mu Y, Xu G, Chang M. Transition-Metal-Catalyzed Asymmetric Reductive Amination and Amidation Cascade Reaction for the Synthesis of Piperazinones. Org Lett 2022; 24:9033-9037. [DOI: 10.1021/acs.orglett.2c03664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rongrong Xie
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huan Zhou
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hui Lu
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yawei Mu
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Gong Xu
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mingxin Chang
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
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5
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Yang JS, Lu K, Li CX, Zhao ZH, Zhang XM, Zhang FM, Tu YQ. Chiral 1,2,3-Triazolium Salt Catalyzed Asymmetric Mono- and Dialkylation of 2,5-Diketopiperazines with the Construction of Tetrasubstituted Carbon Centers. Angew Chem Int Ed Engl 2022; 61:e202114129. [PMID: 34981881 DOI: 10.1002/anie.202114129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Indexed: 11/07/2022]
Abstract
Novel asymmetric mono- and dialkylation reactions of α-substituted 2,5-diketopiperazines catalyzed by new chiral spirocyclic-amide-derived triazolium organocatalysts have been developed, resulting in a range of enantioenriched 2,5-diketopiperazine derivatives containing one or two tetrasubstituted carbon stereocenters. The reactions feature high yields (up to 98%), and excellent cis-diastereo- and enantioselectivities (up to >20:1 dr, >99 % ee), and they provide a new asymmetric synthetic approach to important functionalized 2,5-diketopiperazine skeletons. Furthermore, a possible reaction mechanism was proposed based on both control experiments and extensive DFT calculations.
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Affiliation(s)
- Ju-Song Yang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Ka Lu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Chen-Xiao Li
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zu-Hang Zhao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China.,School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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6
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Yang J, Lu K, Li C, Zhao Z, Zhang X, Zhang F, Tu Y. Chiral 1,2,3‐Triazolium Salt Catalyzed Asymmetric Mono‐ and Dialkylation of 2,5‐Diketopiperazines with the Construction of Tetrasubstituted Carbon Centers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ju‐Song Yang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Ka Lu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Chen‐Xiao Li
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Zu‐Hang Zhao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Xiao‐Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Fu‐Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
| | - Yong‐Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Shanghai Jiao Tong University Shanghai 200240 P. R. China
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7
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Evolution in heterodonor P-N, P-S and P-O chiral ligands for preparing efficient catalysts for asymmetric catalysis. From design to applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214120] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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8
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Sercel ZP, Sun AW, Stoltz BM. Synthesis of Enantioenriched gem-Disubstituted 4-Imidazolidinones by Palladium-Catalyzed Decarboxylative Asymmetric Allylic Alkylation. Org Lett 2021; 23:6348-6351. [PMID: 34346221 DOI: 10.1021/acs.orglett.1c02134] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A variety of enantioenriched gem-disubstituted 4-imidazolidinones were prepared in up to >99% yield and 95% ee by the Pd-catalyzed decarboxylative asymmetric allylic alkylation of imidazolidinone-derived β-amidoesters. In the process of preparing these substrates, a rapid synthetic route to 4-imidazolidinone derivatives was developed, beginning from 2-thiohydantoin. The orthogonality of the benzoyl imide and tert-butyl carbamate groups used to protect these nitrogen-rich products was demonstrated, enabling potential applications in drug design.
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Affiliation(s)
- Zachary P Sercel
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Alexander W Sun
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Brian M Stoltz
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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9
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Abstract
The asymmetric alkylation of enolates is a particularly versatile method for the construction of α-stereogenic carbonyl motifs, which are ubiquitous in synthetic chemistry. Over the past several decades, the focus has shifted to the development of new catalytic methods that depart from classical stoichiometric stereoinduction strategies (e.g., chiral auxiliaries, chiral alkali metal amide bases, chiral electrophiles, etc.). In this way, the enantioselective alkylation of prochiral enolates greatly improves the step- and redox-economy of this process, in addition to enhancing the scope and selectivity of these reactions. In this review, we summarize the origin and advancement of catalytic enantioselective enolate alkylation methods, with a directed emphasis on the union of prochiral nucleophiles with carbon-centered electrophiles for the construction of α-stereogenic carbonyl derivatives. Hence, the transformative developments for each distinct class of nucleophile (e.g., ketone enolates, ester enolates, amide enolates, etc.) are presented in a modular format to highlight the state-of-the-art methods and current limitations in each area.
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Affiliation(s)
- Timothy B Wright
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - P Andrew Evans
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada.,Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, P. R. of China
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10
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Connon R, Roche B, Rokade BV, Guiry PJ. Further Developments and Applications of Oxazoline-Containing Ligands in Asymmetric Catalysis. Chem Rev 2021; 121:6373-6521. [PMID: 34019404 PMCID: PMC8277118 DOI: 10.1021/acs.chemrev.0c00844] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Indexed: 12/27/2022]
Abstract
The chiral oxazoline motif is present in many ligands that have been extensively applied in a series of important metal-catalyzed enantioselective reactions. This Review aims to provide a comprehensive overview of the most significant applications of oxazoline-containing ligands reported in the literature starting from 2009 until the end of 2018. The ligands are classified not by the reaction to which their metal complexes have been applied but by the nature of the denticity, chirality, and donor atoms involved. As a result, the continued development of ligand architectural design from mono(oxazolines), to bis(oxazolines), to tris(oxazolines) and tetra(oxazolines) and variations thereof can be more easily monitored by the reader. In addition, the key transition states of selected asymmetric transformations will be given to illustrate the features that give rise to high levels of asymmetric induction. As a further aid to the reader, we summarize the majority of schemes with representative examples that highlight the variation in % yields and % ees for carefully selected substrates. This Review should be of particular interest to the experts in the field but also serve as a useful starting point to new researchers in this area. It is hoped that this Review will stimulate both the development/design of new ligands and their applications in novel metal-catalyzed asymmetric transformations.
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Affiliation(s)
- Robert Connon
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
| | - Brendan Roche
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
| | - Balaji V. Rokade
- BiOrbic
Research Centre, Centre for Synthesis and Chemical Biology, School
of Chemistry, University College Dublin, Dublin 4, Ireland
| | - Patrick J. Guiry
- Synthesis
and Solid State Pharmaceutical Centre, Centre for Synthesis and Chemical
Biology, School of Chemistry, University
College Dublin, Dublin
4, Ireland
- BiOrbic
Research Centre, Centre for Synthesis and Chemical Biology, School
of Chemistry, University College Dublin, Dublin 4, Ireland
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11
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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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12
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Feng GS, Zhao ZB, Shi L, Zhou YG. Synthesis of chiral piperazin-2-ones through palladium-catalyzed asymmetric hydrogenation of pyrazin-2-ols. Org Chem Front 2021. [DOI: 10.1039/d1qo01144h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed asymmetric hydrogenation of pyrazines containing a tautomeric hydroxyl group was developed, providing a facile access to chiral disubstituted piperazin-2-ones with excellent diastereoselectivities and enantioselectivities.
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Affiliation(s)
- Guang-Shou Feng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Zi-Biao Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Lei Shi
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
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13
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Chakrabarty A, Mukherjee S. Iridium-Catalyzed Enantioselective α-Allylic Alkylation of Amides Using Vinyl Azide as Amide Enolate Surrogate. Org Lett 2020; 22:7752-7756. [PMID: 32936647 DOI: 10.1021/acs.orglett.0c03002] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Among the unstabilized enolates used as nucleophiles in iridium-catalyzed asymmetric allylic alkylation reactions, amide enolates are the least explored. Vinyl azides are now employed as amide enolate surrogates in Ir-catalyzed asymmetric allylic alkylation with branched allylic alcohols as the allylic electrophile. Competing reaction pathways are suppressed through the systematic tuning of the steric and electronic properties of vinyl azide to effect the α-allylic alkylation of secondary acetamides with high atom economy, exclusive branched selectivity, and mostly excellent enantioselectivity.
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Affiliation(s)
- Aditya Chakrabarty
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
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14
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Cusumano AQ, Stoltz BM, Goddard WA. Reaction Mechanism, Origins of Enantioselectivity, and Reactivity Trends in Asymmetric Allylic Alkylation: A Comprehensive Quantum Mechanics Investigation of a C(sp 3)-C(sp 3) Cross-Coupling. J Am Chem Soc 2020; 142:13917-13933. [PMID: 32640162 PMCID: PMC7802888 DOI: 10.1021/jacs.0c06243] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We utilize quantum mechanics to evaluate a variety of plausible mechanistic pathways for the entirety of the catalytic cycle for asymmetric decarboxylative allylic alkylation of allyl β-ketoesters. We present a mechanistic picture that unites all current experimental observations, including enantioinduction, reaction rate, catalyst resting state, enolate crossover experiments, water tolerance, and the effects of solvation on inner- and outer-sphere mechanisms. Experiments designed to evaluate the fidelity and predictive power of the computational models reveal the methods employed herein to be highly effective in elucidating the reactivity of the catalytic system. On the basis of these findings, we highlight a computational framework from which chemically accurate results are obtained and address the current limitations of the decarboxylative asymmetric allylic alkylation reaction.
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Affiliation(s)
- Alexander Q Cusumano
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - William A Goddard
- Materials and Process Simulation Center, Beckman Institute, California Institute of Technology, Pasadena, California 91125, United States
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15
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Inanaga K, Wollenburg M, Bachman S, Hafeman NJ, Stoltz BM. Catalytic enantioselective synthesis of carbocyclic and heterocyclic spiranes via a decarboxylative aldol cyclization. Chem Sci 2020; 11:7390-7395. [PMID: 33133488 PMCID: PMC7574022 DOI: 10.1039/d0sc02366c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 06/20/2020] [Indexed: 11/21/2022] Open
Abstract
The synthesis of a variety of enantioenriched 1,3-diketospiranes from the corresponding racemic allyl β-ketoesters via an interrupted asymmetric allylic alkylation is disclosed. Substrates possessing pendant aldehydes undergo decarboxylative enolate formation in the presence of a chiral Pd catalyst and subsequently participate in an enantio- and diastereoselective, intramolecular aldol reaction to furnish spirocyclic β-hydroxy ketones which may be oxidized to the corresponding enantioenriched diketospiranes. Additionally, this chemistry has been extended to α-allylcarboxy lactam substrates leading to a formal synthesis of the natural product (-)-isonitramine.
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Affiliation(s)
- Kazato Inanaga
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering , California Institute of Technology , 1200 E. California Blvd. , Pasadena , CA 91125 , USA .
| | - Marco Wollenburg
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering , California Institute of Technology , 1200 E. California Blvd. , Pasadena , CA 91125 , USA .
| | - Shoshana Bachman
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering , California Institute of Technology , 1200 E. California Blvd. , Pasadena , CA 91125 , USA .
| | - Nicholas J Hafeman
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering , California Institute of Technology , 1200 E. California Blvd. , Pasadena , CA 91125 , USA .
| | - Brian M Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering , California Institute of Technology , 1200 E. California Blvd. , Pasadena , CA 91125 , USA .
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16
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Tripathi S, Ambule MD, Srivastava AK. Construction of Highly Functionalized Piperazinones via Post-Ugi Cyclization and Diastereoselective Nucleophilic Addition. J Org Chem 2020; 85:6910-6923. [PMID: 32352769 DOI: 10.1021/acs.joc.0c00108] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A novel method for the generation of uniquely functionalized piperazinones by utilizing post-Ugi functionalization is described. The method involves an Ugi reaction with aminoacetaldehyde dimethyl acetal, followed by acid-mediated cyclization to generate the iminium precursor that was subjected to nucleophilic addition in a diastereoselective manner. The method was also employed to synthesize trans-dragmacidine C and praziquantel-like molecules.
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Affiliation(s)
- Shashank Tripathi
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Mayur D Ambule
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Ajay Kumar Srivastava
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
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17
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Magriotis PA. Recent progress toward the asymmetric synthesis of carbon-substituted piperazine pharmacophores and oxidative related heterocycles. RSC Med Chem 2020; 11:745-759. [PMID: 33479672 PMCID: PMC7509752 DOI: 10.1039/d0md00053a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 04/27/2020] [Indexed: 01/23/2023] Open
Abstract
The piperazine drugs are mostly N-substituted compared to only a few C-substituted drugs. To explore this unknown chemical space, asymmetric syntheses of C-substituted piperazines is the subject of this review.
The important requirement for approval of a new drug, in case it happens to be chiral, is that both enantiomers of the drug should be studied in detail, which has led synthetic organic and medicinal chemists to focus their attention on the development of new methods for asymmetric synthesis especially of relevant saturated N-heterocycles. On the other hand, the piperazine ring, besides defining a major class of saturated N-heterocycles, has been classified as a privileged structure in medicinal chemistry, since it is more than frequently found in biologically active compounds including several marketed blockbuster drugs such as Glivec (imatinib) and Viagra (sildenafil). Indeed, 13 of the 200 best-selling small molecule drugs in 2012 contained a piperazine ring. Nevertheless, analysis of the piperazine substitution pattern reveals a lack of structural diversity, with almost every single drug in this category (83%) containing a substituent at both the N1- and N4-positions compared to a few drugs having a substituent at any other position (C2, C3, C5, and C6). Significant chemical space that is closely related to that known to be biologically relevant, therefore, remains unexplored. In order to explore this chemical space, efficient and asymmetric syntheses of carbon-substituted piperazines and related heterocycles must be designed and developed. Initial, recent efforts toward the implementation of this particular target are in fact the subject of this review.
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Affiliation(s)
- Plato A Magriotis
- Department of Pharmacy , Laboratory of Medicinal Chemistry , University of Patras , Rio26504 , Greece .
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18
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Moreno A, Beng TK. Direct access to vicinally functionalized and N-trifluoroacetylated (bicyclic)ketopiperazines using a readily affordable N-heterocyclic anhydride. Org Biomol Chem 2020; 18:1577-1581. [PMID: 32039416 DOI: 10.1039/d0ob00049c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Functionalized 2-piperazinones play essential roles as conformationally-constrained peptidomimetics by mimicking inverse γ-turns in peptides. Here, we describe an efficient, scalable, stereoselective, modular, and chemoselective annulation protocol between a novel N-trifluoroacetyl anhydride and several reactive partners, including lactim ethers, imidoyl chlorides, aryl aldimines, and 1,3-azadienes, leading to vicinally functionalized (bicyclic) 2-piperazinones.
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Affiliation(s)
- Antonio Moreno
- Department of Chemistry, Central Washington University, Ellensburg, WA 98926, USA.
| | - Timothy K Beng
- Department of Chemistry, Central Washington University, Ellensburg, WA 98926, USA.
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19
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Beng TK, Moreno A. Copper-catalyzed alkenylation of novel N-iodoarylated allylic ketopiperazinonates with unactivated alkenes. NEW J CHEM 2020. [DOI: 10.1039/c9nj06178a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Novel N-iodoarylated allylic ketopiperazines have been engaged in a CuBr-catalyzed alkenylation protocol with simple alkenes, leading to epimerization-free, efficient, and regioselective synthesis of N-stilbeno-ketopiperazines
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Affiliation(s)
- Timothy K. Beng
- Department of Chemistry
- Central Washington University
- Ellensburg
- USA
| | - Antonio Moreno
- Department of Chemistry
- Central Washington University
- Ellensburg
- USA
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20
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Lei J, Xu J, Tang DY, Shao JW, Li HY, Chen ZZ, Xu ZG. A concise and unexpected one-pot methodology for the synthesis of pyrazinone-fused pyridones. Org Chem Front 2020. [DOI: 10.1039/d0qo00590h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A post-Ugi/Michael/Retro-Michael reaction, aromatization and 5-exo-dig cyclization cascade reaction was developed and utilized for the synthesis of pyrazinone-fused pyridone derivatives under mild reaction conditions in one-pot.
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Affiliation(s)
- Jie Lei
- College of Pharmacy
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics
- Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine
- Chongqing University of Arts and Sciences
- Chongqing 402160
| | - Jia Xu
- College of Pharmacy
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics
- Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine
- Chongqing University of Arts and Sciences
- Chongqing 402160
| | - Dian-Yong Tang
- College of Pharmacy
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics
- Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine
- Chongqing University of Arts and Sciences
- Chongqing 402160
| | - Jing-Wei Shao
- Department of Pharmaceutical Sciences
- College of Pharmacy
- University of Arkansas for Medical Sciences
- Little Rock
- USA
| | - Hong-yu Li
- Department of Pharmaceutical Sciences
- College of Pharmacy
- University of Arkansas for Medical Sciences
- Little Rock
- USA
| | - Zhong-Zhu Chen
- College of Pharmacy
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics
- Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine
- Chongqing University of Arts and Sciences
- Chongqing 402160
| | - Zhi-Gang Xu
- College of Pharmacy
- National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics
- Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine
- Chongqing University of Arts and Sciences
- Chongqing 402160
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21
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Noda H, Shibasaki M. Recent Advances in the Catalytic Asymmetric Synthesis of β
2
‐ and β
2,2
‐Amino Acids. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901596] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN) 3–14–23 Kamiosaki, Shinagawa‐ku, Tokyo 141–0021 Tokyo Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3–14–23 Kamiosaki, Shinagawa‐ku, Tokyo 141–0021 Tokyo Japan
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22
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Sercel ZP, Sun AW, Stoltz BM. Palladium-Catalyzed Decarboxylative Asymmetric Allylic Alkylation of 1,4-Diazepan-5-ones. Org Lett 2019; 21:9158-9161. [DOI: 10.1021/acs.orglett.9b03530] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zachary P. Sercel
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Alexander W. Sun
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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23
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Sun AW, Bulterys PL, Bartberger MD, Jorth PA, O'Boyle BM, Virgil SC, Miller JF, Stoltz BM. Incorporation of a chiral gem-disubstituted nitrogen heterocycle yields an oxazolidinone antibiotic with reduced mitochondrial toxicity. Bioorg Med Chem Lett 2019; 29:2686-2689. [PMID: 31383589 PMCID: PMC6711789 DOI: 10.1016/j.bmcl.2019.07.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/08/2019] [Accepted: 07/13/2019] [Indexed: 11/20/2022]
Abstract
gem-Disubstituted N-heterocycles are rarely found in drugs, despite their potential to improve the drug-like properties of small molecule pharmaceuticals. Linezolid, a morpholine heterocycle-containing oxazolidinone antibiotic, exhibits significant side effects associated with human mitochondrial protein synthesis inhibition. We synthesized a gem-disubstituted linezolid analogue that when compared to linezolid, maintains comparable (albeit slightly diminished) activity against bacteria, comparable in vitro physicochemical properties, and a decrease in undesired mitochondrial protein synthesis (MPS) inhibition. This research contributes to the structure-activity-relationship data surrounding oxazolidinone MPS inhibition, and may inspire investigations into the utility of gem-disubstituted N-heterocycles in medicinal chemistry.
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Affiliation(s)
- Alexander W Sun
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Philip L Bulterys
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, CA 90095, USA
| | - Michael D Bartberger
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Peter A Jorth
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Brendan M O'Boyle
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Scott C Virgil
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jeff F Miller
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, CA 90095, USA
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States.
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24
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Faltracco M, Cotogno S, Vande Velde CML, Ruijter E. Catalytic Asymmetric Synthesis of Diketopiperazines by Intramolecular Tsuji-Trost Allylation. J Org Chem 2019; 84:12058-12070. [PMID: 31446758 PMCID: PMC6760471 DOI: 10.1021/acs.joc.9b01994] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
We
report the intramolecular Tsuji–Trost reaction of Ugi
adducts to give spiro-diketopiperazines in high yield and with high
enantioselectivity. This approach allows the catalytic asymmetric
construction of a broad range of these medicinally important heterocycles
under mild conditions, in two steps from cheap, commercially available
starting materials.
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Affiliation(s)
- Matteo Faltracco
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines & Systems (AIMMS) , Vrije Universiteit Amsterdam , De Boelelaan 1108 , 1081 HZ Amsterdam , The Netherlands
| | - Silvia Cotogno
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines & Systems (AIMMS) , Vrije Universiteit Amsterdam , De Boelelaan 1108 , 1081 HZ Amsterdam , The Netherlands
| | - Christophe M L Vande Velde
- Advanced Reactor Technology, Faculty of Applied Engineering , University of Antwerp , Groenenborgerlaan 171 , 2020 Antwerpen , Belgium
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences, Amsterdam Institute for Molecules, Medicines & Systems (AIMMS) , Vrije Universiteit Amsterdam , De Boelelaan 1108 , 1081 HZ Amsterdam , The Netherlands
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25
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Sempere Y, Alfke JL, Rössler SL, Carreira EM. Morpholine Ketene Aminal as Amide Enolate Surrogate in Iridium‐Catalyzed Asymmetric Allylic Alkylation. Angew Chem Int Ed Engl 2019; 58:9537-9541. [DOI: 10.1002/anie.201903090] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 01/24/2023]
Affiliation(s)
- Yeshua Sempere
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Jan L. Alfke
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Simon L. Rössler
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Erick M. Carreira
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
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26
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Sempere Y, Alfke JL, Rössler SL, Carreira EM. Morpholine Ketene Aminal as Amide Enolate Surrogate in Iridium‐Catalyzed Asymmetric Allylic Alkylation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yeshua Sempere
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Jan L. Alfke
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Simon L. Rössler
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Erick M. Carreira
- Laboratorium für Organische Chemie, HCI H335Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
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27
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James J, Jackson M, Guiry PJ. Palladium‐Catalyzed Decarboxylative Asymmetric Allylic Alkylation: Development, Mechanistic Understanding and Recent Advances. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801575] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jinju James
- Centre for Synthesis and Chemical BiologySchool of ChemistryUniversity College Dublin Belfield Dublin 4 Ireland
| | - Mark Jackson
- Centre for Synthesis and Chemical BiologySchool of ChemistryUniversity College Dublin Belfield Dublin 4 Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical BiologySchool of ChemistryUniversity College Dublin Belfield Dublin 4 Ireland
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28
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Sun AW, Hess SN, Stoltz BM. Enantioselective synthesis of gem-disubstituted N-Boc diazaheterocycles via decarboxylative asymmetric allylic alkylation. Chem Sci 2019; 10:788-792. [PMID: 30774872 PMCID: PMC6345351 DOI: 10.1039/c8sc03967d] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 10/29/2018] [Indexed: 11/28/2022] Open
Abstract
An enantioselective synthesis of diverse N4-Boc-protected α,α-disubstituted piperazin-2-ones using the palladium-catalyzed decarboxylative allylic alkylation reaction has been achieved. Using a chiral Pd-catalyst derived from an electron deficient PHOX ligand, chiral piperazinones are synthesized in high yields and enantioselectivity. The chiral piperazinone products can be deprotected and reduced to valuable gem-disubstituted piperazines. This reaction is further extended to enable the enantioselective synthesis of α,α-disubstituted tetrahydropyrimidin-2-ones, which are hydrolyzed into corresponding chiral β2,2-amino acids.
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Affiliation(s)
- Alexander W Sun
- Warren and Katherine Schlinger Laboratory for Chemistry and Chemical Engineering , Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , USA .
| | - Stephan N Hess
- Warren and Katherine Schlinger Laboratory for Chemistry and Chemical Engineering , Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , USA .
| | - Brian M Stoltz
- Warren and Katherine Schlinger Laboratory for Chemistry and Chemical Engineering , Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , USA .
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29
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Shockley SE, Hethcox JC, Stoltz BM. Intermolecular Stereoselective Iridium-Catalyzed Allylic Alkylation: An Evolutionary Account. Synlett 2018; 29:2481-2492. [PMID: 31754289 PMCID: PMC6870865 DOI: 10.1055/s-0037-1610217] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Our lab has long been interested in the development of methods for the creation of enantioenriched all-carbon quaternary stereocenters. Historically, our interest has centered on palladium-catalyzed allylic alkylation, though recent efforts have moved to include the study of iridium catalysts. Whereas palladium catalysts enable the preparation of isolated stereocenters, the use of iridium catalysts allows for the direct construction of vicinal stereocenters via an enantio-, diastereo-, and regioselective allylic alkylation. This account details the evolution of our research program from inception, which focused on the first iridium-catalyzed allylic alkylation to prepare stereodyads containing a single quaternary center, to our most recent discovery that allows for the synthesis of vicinal quaternary centers.
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Affiliation(s)
| | | | - Brian M. Stoltz
- The Warren and Katherine Schlinger Laboratory for Chemistry and
Chemical Engineering, Division of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Blvd, MC 101-20, Pasadena, CA 91125,
USA
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30
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Li MD, Yan Z, Zhu R, Phillips DL, Aparici-Espert I, Lhiaubet-Vallet V, Miranda MA. Enhanced Drug Photosafety by Interchromophoric Interaction Owing to Intramolecular Charge Separation. Chemistry 2018; 24:6654-6659. [DOI: 10.1002/chem.201800716] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Ming-De Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province; Shantou University; Guangdong 515063 P. R. China
| | - Zhiping Yan
- Department of Chemistry; The University of Hong Kong, Pokfulam Road; Hong Kong S. A. R. P. R. China
| | - Ruixue Zhu
- Department of Chemistry; The University of Hong Kong, Pokfulam Road; Hong Kong S. A. R. P. R. China
| | - David Lee Phillips
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province; Shantou University; Guangdong 515063 P. R. China
- Department of Chemistry; The University of Hong Kong, Pokfulam Road; Hong Kong S. A. R. P. R. China
| | - Isabel Aparici-Espert
- Instituto de Tecnología Química UPV-CSIC; Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas; Avda de los Naranjos s/n 46022 Valencia Spain
| | - Virginie Lhiaubet-Vallet
- Instituto de Tecnología Química UPV-CSIC; Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas; Avda de los Naranjos s/n 46022 Valencia Spain
| | - Miguel A. Miranda
- Instituto de Tecnología Química UPV-CSIC; Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas; Avda de los Naranjos s/n 46022 Valencia Spain
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31
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Gregg ZR, Griffiths JR, Diver ST. Conformational Control of Initiation Rate in Hoveyda–Grubbs Precatalysts. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zackary R. Gregg
- Department of Chemistry, University at Buffalo, the State University of New York, Buffalo, New York 14260-3000, United States
| | - Justin R. Griffiths
- Department of Chemistry, University at Buffalo, the State University of New York, Buffalo, New York 14260-3000, United States
| | - Steven T. Diver
- Department of Chemistry, University at Buffalo, the State University of New York, Buffalo, New York 14260-3000, United States
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32
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Zamudio-Medina A, García-González AN, Herrera-Carrillo GK, Zárate-Zárate D, Benavides-Macías A, Tamariz J, Ibarra IA, Islas-Jácome A, González-Zamora E. Synthesis of Polyheterocyclic Pyrrolo[3,4-b]pyridin-5-ones via a One-Pot (Ugi-3CR/aza Diels-Alder/N-acylation/aromatization/S N2) Process. A Suitable Alternative towards Novel Aza-Analogues of Falipamil. Molecules 2018; 23:E763. [PMID: 29584639 PMCID: PMC6017480 DOI: 10.3390/molecules23040763] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/16/2018] [Accepted: 03/23/2018] [Indexed: 11/30/2022] Open
Abstract
We describe the one-pot synthesis of twenty polyheterocyclic pyrrolo[3,4-b]pyridin-5-ones via a cascade process (Ugi-3CR/aza Diels-Alder/N-acylation/aromatization) in 20 to 95% overall yields, as well as four pharmacologically promising analogues via an improved cascade process (Ugi-3CR/aza Diels-Alder/N-acylation/aromatization/SN2): two piperazine-linked pyrrolo[3,4-b]pyridin-5-ones in 33 and 34%, and a couple of Falipamil aza-analogues in 30 and 35% overall yields. It is worth highlighting the good substrate scope found, because final products are furnished with alkyl, aryl, and heterocyclic substituents. The use of chain-ring tautomerizable isocyanides (as key reagents for the Ugi-type three component reaction) allowed for a rapid and efficient assembly of the polysubstituted oxindoles, which were used in situ toward the complex products, conferring features like robustness, sustainability, and the one-pot approach to this synthetic methodology.
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Affiliation(s)
- Angel Zamudio-Medina
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Av. Acueducto de Guadalupe S/N, Barr. La Laguna Ticomán, C.P. 07340, Del. Gustavo A Madero, Ciudad de México, Mexico;
| | - Ailyn N. García-González
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
| | - Genesis K. Herrera-Carrillo
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
| | - Daniel Zárate-Zárate
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
| | - Adriana Benavides-Macías
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. Manuel Carpio y Plan de Ayala S/N, Col. Santo Tomás, C.P. 11340, Del. Miguel Hidalgo, Ciudad de México, Mexico; (A.B.-M.); (J.T.)
| | - Joaquín Tamariz
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. Manuel Carpio y Plan de Ayala S/N, Col. Santo Tomás, C.P. 11340, Del. Miguel Hidalgo, Ciudad de México, Mexico; (A.B.-M.); (J.T.)
| | - Ilich A. Ibarra
- Laboratorio de Fisicoquímica y Reactividad de Superficies, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, C.P. 04510, Del. Coyoacán, Ciudad de México, Mexico
| | - Alejandro Islas-Jácome
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
| | - Eduardo González-Zamora
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
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33
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Borlinghaus N, Gergel S, Nestl BM. Biocatalytic Access to Piperazines from Diamines and Dicarbonyls. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00291] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Niels Borlinghaus
- Institute of Biochemistry and Technical Biochemistry, Chair of Technical Biochemistry, Universitaet Stuttgart 70569, Stuttgart, Germany
| | - Sebastian Gergel
- Institute of Biochemistry and Technical Biochemistry, Chair of Technical Biochemistry, Universitaet Stuttgart 70569, Stuttgart, Germany
| | - Bettina M. Nestl
- Institute of Biochemistry and Technical Biochemistry, Chair of Technical Biochemistry, Universitaet Stuttgart 70569, Stuttgart, Germany
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34
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Expedient syntheses of N-heterocycles via intermolecular amphoteric diamination of allenes. Nat Commun 2018; 9:721. [PMID: 29459667 PMCID: PMC5818626 DOI: 10.1038/s41467-018-03085-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 01/17/2018] [Indexed: 11/24/2022] Open
Abstract
Saturated 1,4-diazo heterocycles including piperazines, 1,4-diazepanes, and 1,4-diazocanes, are highly important for therapeutic development, but their syntheses are often tedious. We describe here an amphoteric diamination strategy to unite readily available 1,2-, 1,3- or 1,4-diamine derivatives with electron-deficient allenes via a formal [n + 2] (n = 4, 5, 6) cyclization mode to produce the corresponding 1,4-diazo heterocycles in just one step. This strategy features mild reaction conditions, high functional group tolerance, and scalability (gram scale). The reagents used are cheap and readily available and no transition metal catalysts are needed. More sophisticated products containing trifluoromethyl group or bicyclic ring systems can be accessed via a one-pot procedure as well. Our mechanistic studies support that formation of mono-iodinated or chlorinated diamine intermediates is important for the desired transformation and the commonly proposed chloride-iodide exchange process and a radical N−C bond formation is unlikely when the combination of NCS/KI is used. Saturated N-heterocycle rings are common structural motifs of many FDA-approved drugs. Here, the authors show that a metal-free amphoteric diamination of allenes produces valuable six-, seven- and eight-membered N-heterocycles with high diversity and tolerance of functional groups on the ring.
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35
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Kondo H, Maeno M, Hirano K, Shibata N. Asymmetric synthesis of α-trifluoromethoxy ketones with a tetrasubstituted α-stereogenic centre via the palladium-catalyzed decarboxylative allylic alkylation of allyl enol carbonates. Chem Commun (Camb) 2018; 54:5522-5525. [DOI: 10.1039/c8cc03131b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The Pd-catalyzed asymmetric decarboxylative allylic alkylation of trifluoromethoxy allyl enol carbonates is disclosed.
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Affiliation(s)
- Hiroya Kondo
- Department of Nanopharmaceutical Sciences
- and Department of Life Science and Applied Chemistry
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
| | - Mayaka Maeno
- Department of Nanopharmaceutical Sciences
- and Department of Life Science and Applied Chemistry
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
| | - Kazuki Hirano
- Department of Nanopharmaceutical Sciences
- and Department of Life Science and Applied Chemistry
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences
- and Department of Life Science and Applied Chemistry
- Nagoya Institute of Technology
- Gokiso
- Showa-ku
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36
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Pei‐Sen G, Jin‐Lei Z, Ning L, Jiang ZZ, Yang Y, Zi‐Wei G, Weiqiang Z, Li‐Wen X. Synthesis of multi‐functionalized carbonyl compounds by palladium–catalysed γ‐substitution of MBH adducts with activated amides. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gao Pei‐Sen
- School of Chemistry and Chemical EngineeringShaanxi Normal University Shaanxi China
| | - Zhang Jin‐Lei
- School of Chemistry and Chemical EngineeringShaanxi Normal University Shaanxi China
| | - Li Ning
- School of Chemistry and Chemical EngineeringShaanxi Normal University Shaanxi China
| | - Zheng Zhan Jiang
- Key Laboratory of Organosilicon, Chemistry and Material Technology of Ministry of EducationHangzhou Normal University Hangzhou China
| | - Yuan Yang
- Key Laboratory of Organosilicon, Chemistry and Material Technology of Ministry of EducationHangzhou Normal University Hangzhou China
| | - Gao Zi‐Wei
- School of Chemistry and Chemical EngineeringShaanxi Normal University Shaanxi China
| | - Zhang Weiqiang
- School of Chemistry and Chemical EngineeringShaanxi Normal University Shaanxi China
| | - Xu Li‐Wen
- School of Chemistry and Chemical EngineeringShaanxi Normal University Shaanxi China
- Key Laboratory of Organosilicon, Chemistry and Material Technology of Ministry of EducationHangzhou Normal University Hangzhou China
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37
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Bora PP, Sun GJ, Zheng WF, Kang Q. Rh/Lewis Acid Catalyzed Regio-, Diastereo- and Enantioselective Addition of 2-Acyl Imidazoles with Allenes. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700596] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Pranjal P. Bora
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences; 155 Yangqiao Road West, Fuzhou Fujian 350002 China
| | - Gui-Jun Sun
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences; 155 Yangqiao Road West, Fuzhou Fujian 350002 China
| | - Wei-Feng Zheng
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences; 155 Yangqiao Road West, Fuzhou Fujian 350002 China
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences; 155 Yangqiao Road West, Fuzhou Fujian 350002 China
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38
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Jiang Y, Suo H, Zhang D, Li X, Sun Y, Ren B, Zhang W, Xu G. An Efficient Method for Reduction of Nitroaromatic Compounds to the Corresponding Aromatic Amines with NH 2NH 2·H 2O Catalysed by H 2O 2-Treated Activated Carbon. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15005518143041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient and green protocol for the reduction of nitroaromatic compounds to the corresponding amines has been developed. The reduction catalyst system includes NH2NH2·H2O and H2O2-treated activated carbon. Without adding additional metals, the H2O2-treated activated carbon could be reused for many cycles without decreasing catalytic efficiency. The aromatic amines could be obtained in good to excellent yields.
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Affiliation(s)
- Yuqin Jiang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P.R. China
| | - Huajun Suo
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P.R. China
| | - Dandan Zhang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P.R. China
| | - Xiyong Li
- Weihai Ocean Vocational College, Weihai, P.R. China
| | - Yamin Sun
- Weihai Ocean Vocational College, Weihai, P.R. China
| | - Baoqi Ren
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P.R. China
| | - Weiwei Zhang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P.R. China
| | - Guiqing Xu
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P.R. China
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39
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Ghazanfarpour-Darjani M, Barat-Seftejani F, Khalaj M, Mousavi-Safavi SM. Synthesis of N
-alkyl-N
′-aryl or Alkenylpiperazines: A Copper-Catalyzed C-N Cross-Coupling in the Presence of Aryl and Alkenyl Triflates and DABCO. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700082] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Majid Ghazanfarpour-Darjani
- Young Researchers and Elite Club; Islamic Azad University; P.O. Box 14115-175 Buin Zahra Branch Buin Zahra Iran
| | - Forugh Barat-Seftejani
- Young Researchers and Elite Club; Islamic Azad University; P.O. Box 14115-175 Buin Zahra Branch Buin Zahra Iran
| | - Mehdi Khalaj
- Young Researchers and Elite Club; Islamic Azad University; P.O. Box 14115-175 Buin Zahra Branch Buin Zahra Iran
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40
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Jiang X, Hartwig JF. Iridium-Catalyzed Enantioselective Allylic Substitution of Aliphatic Esters with Silyl Ketene Acetals as the Ester Enolates. Angew Chem Int Ed Engl 2017; 56:8887-8891. [PMID: 28597600 DOI: 10.1002/anie.201704354] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Indexed: 02/03/2023]
Abstract
Enantioselective allylic substitution with enolates derived from aliphatic esters under mild conditions remains challenging. Herein we report iridium-catalyzed enantioselective allylation reactions of silyl ketene acetals, the silicon enolates of esters, to form products containing a quaternary carbon atom at the nucleophile moiety and a tertiary carbon atom at the electrophile moiety. Under relatively neutral conditions, the allylated aliphatic esters were obtained with excellent regioselectivity and enantioselectivity. These products were readily converted into primary alcohols, carboxylic acids, amides, isocyanates, and carbamates, as well as tetrahydrofuran and γ-butyrolactone derivatives, without erosion of enantiomeric purity.
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Affiliation(s)
- Xingyu Jiang
- Department of Chemistry, University of California, Berkeley, CA, 94720, USA
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley, CA, 94720, USA
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41
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Jiang X, Hartwig JF. Iridium-Catalyzed Enantioselective Allylic Substitution of Aliphatic Esters with Silyl Ketene Acetals as the Ester Enolates. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704354] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xingyu Jiang
- Department of Chemistry; University of California; Berkeley CA 94720 USA
| | - John F. Hartwig
- Department of Chemistry; University of California; Berkeley CA 94720 USA
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42
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Wang Y, Liu Y, Li K, Yang G, Zhang W. Iridium-Catalyzed Asymmetric Hydrogenation of Unsaturated Piperazin-2-ones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yanzhao Wang
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Yuanyuan Liu
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Kun Li
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Guoqiang Yang
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People's Republic of China
| | - Wanbin Zhang
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People's Republic of China
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43
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Bhat V, Welin ER, Guo X, Stoltz BM. Advances in Stereoconvergent Catalysis from 2005 to 2015: Transition-Metal-Mediated Stereoablative Reactions, Dynamic Kinetic Resolutions, and Dynamic Kinetic Asymmetric Transformations. Chem Rev 2017; 117:4528-4561. [PMID: 28164696 PMCID: PMC5516946 DOI: 10.1021/acs.chemrev.6b00731] [Citation(s) in RCA: 224] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Stereoconvergent catalysis is an important subset of asymmetric synthesis that encompasses stereoablative transformations, dynamic kinetic resolutions, and dynamic kinetic asymmetric transformations. Initially, only enzymes were known to catalyze dynamic kinetic processes, but recently various synthetic catalysts have been developed. This Review summarizes major advances in nonenzymatic, transition-metal-promoted dynamic asymmetric transformations reported between 2005 and 2015.
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Affiliation(s)
| | - Eric R. Welin
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | | | - Brian M. Stoltz
- The Warren and Katharine Schlinger Laboratory of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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44
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Pritchett BP, Kikuchi J, Numajiri Y, Stoltz BM. A FISCHER INDOLIZATION STRATEGY TOWARD THE TOTAL SYNTHESIS OF (-)-GONIOMITINE. HETEROCYCLES 2017; 95:1245-1253. [PMID: 28706345 PMCID: PMC5502790 DOI: 10.3987/com-16-s(s)80] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A Fischer indolization strategy toward the core of (-)-goniomitine is reported. Initial investigations into the Pd-catalyzed asymmetric allylic alkylation of dihydropyrido[1,2-a]indolone (DHPI) substrates are also discussed.
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Affiliation(s)
- Beau P Pritchett
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Blvd. MC101-20, Pasadena, CA 91125 (USA)
| | - Jun Kikuchi
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Blvd. MC101-20, Pasadena, CA 91125 (USA)
| | - Yoshitaka Numajiri
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Blvd. MC101-20, Pasadena, CA 91125 (USA)
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Blvd. MC101-20, Pasadena, CA 91125 (USA)
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45
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Hovenkotter K, Braunstein H, Langevin S, Beng TK. Expedient and modular access to 2-azabicyclic architectures by iron-catalyzed dehydrative coupling of alcohol-bearing allylic lactams. Org Biomol Chem 2017; 15:1217-1221. [DOI: 10.1039/c6ob02652d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A high-yielding, cost-effective, modular and environmentally benign approach to [5,5]- or [6,5]-2-azabicyclic architectures bearing vicinal stereocenters, by Fe-catalyzed dehydrative coupling of readily affordable alcohol-bearing allylic lactams is presented.
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Affiliation(s)
| | | | - Spencer Langevin
- Department of Chemistry
- Central Washington University
- Ellensburg
- USA
| | - Timothy K. Beng
- Department of Chemistry
- Central Washington University
- Ellensburg
- USA
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46
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Nascimento de Oliveira M, Fournier J, Arseniyadis S, Cossy J. A Palladium-Catalyzed Asymmetric Allylic Alkylation Approach to α-Quaternary γ-Butyrolactones. Org Lett 2016; 19:14-17. [DOI: 10.1021/acs.orglett.6b02971] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Marllon Nascimento de Oliveira
- Laboratoire de
Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI) - ESPCI Paris/CNRS
(UMR8231), PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Jeremy Fournier
- Laboratoire de
Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI) - ESPCI Paris/CNRS
(UMR8231), PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Stellios Arseniyadis
- Laboratoire de
Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI) - ESPCI Paris/CNRS
(UMR8231), PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - Janine Cossy
- Laboratoire de
Chimie Organique,
Institute of Chemistry, Biology and Innovation (CBI) - ESPCI Paris/CNRS
(UMR8231), PSL Research University, 10 rue Vauquelin, 75231 Paris Cedex 05, France
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47
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Tian P, Wang CQ, Cai SH, Song S, Ye L, Feng C, Loh TP. F– Nucleophilic-Addition-Induced Allylic Alkylation. J Am Chem Soc 2016; 138:15869-15872. [DOI: 10.1021/jacs.6b11205] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Panpan Tian
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
- Department
of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Cheng-Qiang Wang
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Sai-Hu Cai
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
- Department
of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Shengjin Song
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
- Department
of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Lu Ye
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Chao Feng
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Teck-Peng Loh
- Department
of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637616
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48
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Kaplaneris N, Spyropoulos C, Kokotou MG, Kokotos CG. Enantioselective Organocatalytic Synthesis of 2-Oxopiperazines from Aldehydes: Identification of the Elusive Epoxy Lactone Intermediate. Org Lett 2016; 18:5800-5803. [PMID: 27792345 DOI: 10.1021/acs.orglett.6b02699] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An organocatalytic linchpin catalysis approach was envisaged to convert simple aldehydes into enantioenriched 2-oxopiperazines. A four-step reaction sequence (chlorination, oxidation, substitution, and cyclization) was developed and led to different substitution patterns in high yields and selectivities. The reaction mechanism was studied, and the previously elusive epoxy lactone intermediate was identified by HRMS.
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Affiliation(s)
- Nikolaos Kaplaneris
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens , Panepistimiopolis, Athens 15771, Greece
| | - Constantinos Spyropoulos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens , Panepistimiopolis, Athens 15771, Greece
| | - Maroula G Kokotou
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens , Panepistimiopolis, Athens 15771, Greece
| | - Christoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens , Panepistimiopolis, Athens 15771, Greece
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49
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Gao PS, Li N, Zhang JL, Zhu ZL, Gao ZW, Sun HM, Zhang WQ, Xu LW. Highly Efficient Palladium-Catalyzed Allylic Alkylation of Cyanoacetamides with Controllable and Chemoselective Mono- and Double Substitutions. ChemCatChem 2016. [DOI: 10.1002/cctc.201601021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pei-Sen Gao
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education (MOE) and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P.R. China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University (HZNU); P.R. China
| | - Ning Li
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education (MOE) and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P.R. China
| | - Jin-Lei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education (MOE) and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P.R. China
| | - Zhuang-Li Zhu
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education (MOE) and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P.R. China
| | - Zi-Wei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education (MOE) and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P.R. China
| | - Hua-Ming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education (MOE) and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P.R. China
| | - Wei-Qiang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education (MOE) and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P.R. China
| | - Li-Wen Xu
- Key Laboratory of Applied Surface and Colloid Chemistry; Ministry of Education (MOE) and School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 P.R. China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University (HZNU); P.R. China
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50
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Pritchett BP, Kikuchi J, Numajiri Y, Stoltz BM. Enantioselective Pd-Catalyzed Allylic Alkylation Reactions of Dihydropyrido[1,2-a
]indolone Substrates: Efficient Syntheses of (−)-Goniomitine, (+)-Aspidospermidine, and (−)-Quebrachamine. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608138] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Beau P. Pritchett
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering; Division of Chemistry and Chemical Engineering; California Institute of Technology; 1200 E. California Blvd. MC 101-20 Pasadena CA 91125 USA
| | - Jun Kikuchi
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering; Division of Chemistry and Chemical Engineering; California Institute of Technology; 1200 E. California Blvd. MC 101-20 Pasadena CA 91125 USA
| | - Yoshitaka Numajiri
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering; Division of Chemistry and Chemical Engineering; California Institute of Technology; 1200 E. California Blvd. MC 101-20 Pasadena CA 91125 USA
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering; Division of Chemistry and Chemical Engineering; California Institute of Technology; 1200 E. California Blvd. MC 101-20 Pasadena CA 91125 USA
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