1
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Khandekar SB, Fernandes RA. Asymmetric total syntheses of aspilactonol F and aspiketolactonol and synthetic studies toward diplofuranoxin. Org Biomol Chem 2024; 22:4508-4515. [PMID: 38747330 DOI: 10.1039/d4ob00549j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The first asymmetric total synthesis of C9 polyketides, aspilactonol F and aspiketolactonol has been achieved. Ring-closing-metathesis has been employed as the key step in the synthesis. The total synthesis of aspilactonol F and aspiketolactonol was accomplished in 8 and 10 steps, in good overall yields of 28% and 24%, respectively, with only four column purifications for the former. A common strategy for the concise synthesis of the key intermediate of diplofuranoxin is also presented.
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Affiliation(s)
- Sagar B Khandekar
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai 400076, Maharashtra, India.
| | - Rodney A Fernandes
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai 400076, Maharashtra, India.
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2
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Li L, Hui T, Li Y, Wang Y, Gu H, Chen G, Lei P, Gao Y, Feng J. Design, synthesis and antifungal activity of novel α-methylene-γ-butyrolactone derivatives containing benzothiophene moiety. PEST MANAGEMENT SCIENCE 2024. [PMID: 38482986 DOI: 10.1002/ps.8080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/10/2024] [Accepted: 03/14/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND The discovery of agricultural fungicide candidates from natural products is one of the key strategies for developing environment friendly agricultural fungicides with high efficiency, high selectivity and unique modes-of-action. Based on previous work, a series of novel α-methylene-γ-butyrolactone (MBL) derivatives containing benzothiophene moiety were designed and synthesized. RESULTS The majority of the proposed compounds displayed moderate to considerable antifungal efficacy against the tested pathogenic fungi and oomycetes, some exhibiting broad spectrum antifungal activity. Notably, compounds 2 (3-F-Ph) and 7 (4-Cl-Ph) showed excellent antifungal activity against Rhizoctonia with half maximal effective concentration (EC50) values of 0.94 and 0.99 mg L-1, respectively, comparable to the commercial fungicide tebuconazole (EC50 = 0.96 mg L-1), and also displayed significant inhibitory effects against V alsa mali with EC50 values of 2.26 and 1.67 mg L-1, respectively - better than famoxadone and carabrone. The in vivo protective and curative effects against R. solani of compound 2 were 57.2% and 53.7% at 100 mg L-1, respectively, which were equivalent to tebuconazole (51.6% and 52.4%). Further investigations found that compound 2 altered the ultrastructure of R. solani cell, significantly increased the relative conductivity of the cells, and reduced the activity of complex III in a dose-dependent manner. Molecular docking results showed that compound 2 matched well with the Qo pocket. CONCLUSION The results revealed that MBL derivatives containing benzothiophene moiety are promising antifungal candidates and provide a new backbone structure for further optimization of novel fungicides. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Luwei Li
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Tuoping Hui
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuying Li
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yaqiang Wang
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Huiping Gu
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Guangyou Chen
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Peng Lei
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yanqing Gao
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Juntao Feng
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Northwest A&F University, Yangling, Shaanxi, China
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3
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Fernandes RA, Ranjan RS. Diastereoselective allylation-based asymmetric total synthesis of 1,10- seco-guaianolides. Org Biomol Chem 2024; 22:811-822. [PMID: 38170531 DOI: 10.1039/d3ob02013d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
A Cr(II)-mediated Nozaki-Hiyama allylation of aldehydes with functionalized chiral allylbromolactone paved the way to easily access β-hydroxy-aryl/alkyl-α-methylene-γ-butyrolactones in good yields with high diastereoselectivities. A subsequent undemanding translactonization was orchestrated in the efficient first asymmetric total synthesis of two 1,10-seco-guaianolides as a valuable extension of the strategy developed.
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Affiliation(s)
- Rodney A Fernandes
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai 400076, Maharashtra, India.
| | - Ravikant S Ranjan
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai 400076, Maharashtra, India.
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4
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Fernandes RA, Ramakrishna GV. Diastereoselective Allylation in the Divergent Total Syntheses of Guaianolides (+)-Ligustrin and (+)-Grosheimin and the Formal Synthesis of (−)-Eupalinilide E. J Org Chem 2022. [DOI: 10.1021/acs.joc.2c02094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rodney A. Fernandes
- Department of Chemistry, Indian Institute of Technology Bombay, Powai Mumbai 400076, Maharashtra, India
| | - Gujjula V. Ramakrishna
- Department of Chemistry, Indian Institute of Technology Bombay, Powai Mumbai 400076, Maharashtra, India
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5
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Zhang ZH, Wang X, Weng B, Zhang Y, Zhang G, Hong M. Zinc-Mediated Allylation-Lactonization One-Pot Reaction to Methylene Butyrolactones: Renewable Monomers for Sustainable Acrylic Polymers with Closed-Loop Recyclability. ACS POLYMERS AU 2022; 2:266-274. [PMID: 36855566 PMCID: PMC9955236 DOI: 10.1021/acspolymersau.2c00001] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Despite biomass-derived methylene butyrolactone monomers having great potential in substituting the petroleum-based methacrylates for synthesizing the sustainable acrylic polymers, the possible industrial production of these cyclic monomers is unfortunately not practical due to moderate overall yields and harsh reaction conditions or a time-consuming multistep process. Here we report a convenient and effective synthetic approach to a series of biomass-derived methylene butyrolactone monomers via a zinc-mediated allylation-lactonization one-pot reaction of biorenewable aldehydes with ethyl 2-(bromomethyl)acrylate. Under simple room-temperature sonication conditions, near-quantitative conversions (>90%) can be accomplished within 5-30 min, providing pure products with high isolated yields of 70-80%. Their efficient polymerizations with a high degree of control and complete chemoselectivity were enabled by the judiciously chosen Lewis pair catalyst based on methylaluminum bis(2,6-di-tert-butyl-4-methylphenoxide) [MeAl(BHT)2] Lewis acid and 3-diisopropyl-4,5-dimethylimidazol-2-ylidene (I i Pr) Lewis base, affording new poly(methylene butyrolactone)s with high thermal stability and thermal properties tuned in a wide range as well as pendant vinyl groups for postfunctionalization. Through the development of an effective depolymerization setup (370-390 °C, ca. 100 mTorr, 1 h, a muffle furnace), thermal depolymerizations of these polymers have been achieved with monomer recovery up to 99.8%, thus successfully constructing sustainable acrylic polymers with closed-loop recyclability.
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Affiliation(s)
- Zhen-Hua Zhang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xing Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Biwei Weng
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yixin Zhang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Guozhu Zhang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Miao Hong
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, University of Chinese
Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China,School
of Chemistry and Material Sciences, Hangzhou Institute for Advanced
Study, University of Chinese Academy of
Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China,
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6
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Zhang FH, Guo X, Zeng X, Wang Z. Catalytic Enantioconvergent Allenylation of Aldehydes with Propargyl Halides. Angew Chem Int Ed Engl 2022; 61:e202117114. [PMID: 35029018 DOI: 10.1002/anie.202117114] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Indexed: 11/09/2022]
Abstract
α-Allenol is a versatile synthon in organic synthesis. The catalytic asymmetric synthesis of α-allenols from readily available starting materials remains a prominent challenge, especially when simultaneous control over axial and central chirality is required. Herein, we describe the Cr-catalyzed enantioconvergent allenylation of aldehydes with racemic propargyl halides to rapidly access a wide range of chiral α-allenols with adjacent axial and central chiralities. This method features excellent regio-, diastereo- and enantioselectivity control with broad substrate scope, and provides facile access to all four stereoisomers when allied with a Mitsunobu reaction. Preliminary mechanistic studies support radical-based reaction pathways. The synthetic utility is demonstrated by the application in late-stage functionalization and the formal total synthesis of (+)-varitriol.
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Affiliation(s)
- Feng-Hua Zhang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang Province, China
| | - Xiaochong Guo
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang Province, China
| | - Xianrong Zeng
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang Province, China
| | - Zhaobin Wang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou, 310024, Zhejiang Province, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, Zhejiang Province, China
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7
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Zhang F, Guo X, Zeng X, Wang Z. Catalytic Enantioconvergent Allenylation of Aldehydes with Propargyl Halides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Feng‐Hua Zhang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province School of Science Westlake University Hangzhou 310024, Zhejiang Province China
- Institute of Natural Sciences Westlake Institute for Advanced Study Hangzhou 310024, Zhejiang Province China
| | - Xiaochong Guo
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province School of Science Westlake University Hangzhou 310024, Zhejiang Province China
- Institute of Natural Sciences Westlake Institute for Advanced Study Hangzhou 310024, Zhejiang Province China
| | - Xianrong Zeng
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province School of Science Westlake University Hangzhou 310024, Zhejiang Province China
- Institute of Natural Sciences Westlake Institute for Advanced Study Hangzhou 310024, Zhejiang Province China
| | - Zhaobin Wang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province School of Science Westlake University Hangzhou 310024, Zhejiang Province China
- Institute of Natural Sciences Westlake Institute for Advanced Study Hangzhou 310024, Zhejiang Province China
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8
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Liu W, Winssinger N. Synthesis of α-exo-Methylene-γ-butyrolactones: Recent Developments and Applications in Natural Product Synthesis. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1577-6085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe α-exo-methylene-γ-butyrolactone moiety is present in a vast array of structurally diverse natural products and is often central to their biological activity. In this short review, we summarize new approaches to α-exo-methylene-γ-butyrolactones developed over the past decade as well as their applications in total synthesis.1 Introduction2 Approaches to α-exo-Methylene-γ-butyrolactones2.1 Enantioselective Synthesis via Lactonization Approaches2.2 Enantioselective Halolactonizations2.3 Enantioselective Barbier-Type Allylation2.4 C–H Insertion/Olefination Sequences2.5 Alkene Cyclization2.6 Strain-Driven Dyotropic Rearrangement3 β-(Hydroxymethylalkyl)-α-exo-methylene-γ-butyrolactones4 Applications in Total Synthesis4.1 Sesquiterpene Lactones4.2 Lignans4.3 Other Monocyclic Natural Products4.4 Choice of Methodology in Recent Total Syntheses5 Summary and Outlook
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9
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Wang L, Wang L, Li M, Chong Q, Meng F. Cobalt-Catalyzed Diastereo- and Enantioselective Reductive Allyl Additions to Aldehydes with Allylic Alcohol Derivatives via Allyl Radical Intermediates. J Am Chem Soc 2021; 143:12755-12765. [PMID: 34352174 DOI: 10.1021/jacs.1c05690] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Catalytic generation of ambiphilic π-allyl-metal complexes and their utility in enantioselective transformations constitutes a powerful approach for introduction of allyl groups to a molecule. Herein an unprecedented cobalt-catalyzed highly site-, diastereo-, and enantioselective protocol for stereoselective formation of nucleophilic allyl-Co(II) complexes followed by addition to aldehydes is presented. The reaction features diastereo- and enantioconvergent conversion of easily accessible allylic alcohol derivatives to diversified enantioenriched homoallylic alcohols with a remarkably broad scope of allyl groups that can be introduced. Mechanistic studies indicated that allyl radical intermediates were involved in this process. These new discoveries establish a new strategy for development of enantioselective transformations through capture of radicals by chiral Co complexes, pushing forward the frontier of Co complexes for enantioselective catalysis.
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Affiliation(s)
- Lei Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Lifan Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Mingxia Li
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Qinglei Chong
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Fanke Meng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, 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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Affiliation(s)
- Xiaodong Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
- College of Chemistry, Central China Normal University (CCNU), 152 Luoyu Road, Wuhan, Hubei 430079, P. R. China
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12
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Hur J, Jang J, Sim J. A Review of the Pharmacological Activities and Recent Synthetic Advances of γ-Butyrolactones. Int J Mol Sci 2021; 22:2769. [PMID: 33803380 PMCID: PMC7967234 DOI: 10.3390/ijms22052769] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 02/06/2023] Open
Abstract
γ-Butyrolactone, a five-membered lactone moiety, is one of the privileged structures of diverse natural products and biologically active small molecules. Because of their broad spectrum of biological and pharmacological activities, synthetic methods for γ-butyrolactones have received significant attention from synthetic and medicinal chemists for decades. Recently, new developments and improvements in traditional methods have been reported by considering synthetic efficiency, feasibility, and green chemistry. In this review, the pharmacological activities of natural and synthetic γ-butyrolactones are described, including their structures and bioassay methods. Mainly, we summarize recent advances, occurring during the past decade, in the construction of γ-butyrolactone classified based on the bond formation in γ-butyrolactone between (i) C5-O1 bond, (ii) C4-C5 and C2-O1 bonds, (iii) C3-C4 and C2-O1 bonds, (iv) C3-C4 and C5-O1 bonds, (v) C2-C3 and C2-O1 bonds, (vi) C3-C4 bond, and (vii) C2-O1 bond. In addition, the application to the total synthesis of natural products bearing γ-butyrolactone scaffolds is described.
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Affiliation(s)
- Joonseong Hur
- Natural Products Research Institute, Korea Institute of Science and Technology (KIST), 679 Saimdang-ro, Gangneung 25451, Korea;
| | - Jaebong Jang
- College of Pharmacy, Korea University, Sejong 30019, Korea
| | - Jaehoon Sim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
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13
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Lei X, Li Y, Lai Y, Hu S, Qi C, Wang G, Tang Y. Strain‐Driven Dyotropic Rearrangement: A Unified Ring‐Expansion Approach to α‐Methylene‐γ‐butyrolactones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaoqiang Lei
- School of Pharmaceutical Sciences MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology Tsinghua University Beijing 100084 China
| | - Yuanhe Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS) College of Chemistry Peking University Beijing 100871 China
| | - Yang Lai
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS) College of Chemistry Peking University Beijing 100871 China
| | - Shengkun Hu
- School of Pharmaceutical Sciences MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology Tsinghua University Beijing 100084 China
| | - Chen Qi
- School of Pharmaceutical Sciences MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology Tsinghua University Beijing 100084 China
| | - Gelin Wang
- School of Pharmaceutical Sciences MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology Tsinghua University Beijing 100084 China
| | - Yefeng Tang
- School of Pharmaceutical Sciences MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology Tsinghua University Beijing 100084 China
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14
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Liu W, Yu Z, Winssinger N. Total Syntheses of Paraconic Acids and 1,10- seco-Guaianolides via a Barbier Allylation/Translactonization Cascade of 3-(Bromomethyl)-2(5 H)-furanone. Org Lett 2021; 23:969-973. [PMID: 33502871 DOI: 10.1021/acs.orglett.0c04165] [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 palladium-catalyzed Barbier allylation/translactonization cascade reaction was established for the rapid construction of β,γ-disubstituted α-exo-methylene-γ-butyrolactone, an important motif in sesquiterpenes. Dimethyl zinc played significant roles in both steps for the umpolung of π-allylpalladium as a nucleophile and promoting a Lewis acid-mediated translactonization. This sequence showed a broad substrate scope and was further harnessed for the synthesis of two paraconic acids as well as the first protecting-group-free total synthesis of two 1,10-seco-guaianolides.
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Affiliation(s)
- Weilong Liu
- Department of Organic Chemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, 1205 Geneva, Switzerland
| | - Zhimei Yu
- Department of Organic Chemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, 1205 Geneva, Switzerland
| | - Nicolas Winssinger
- Department of Organic Chemistry, NCCR Chemical Biology, Faculty of Science, University of Geneva, 1205 Geneva, Switzerland
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15
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Li C, Chen B, Ma X, Mo X, Zhang G. Light‐Promoted Copper‐Catalyzed Enantioselective Alkylation of Azoles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202009323] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chen Li
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Bin Chen
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xiaodong Ma
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xueling Mo
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
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16
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Lei X, Li Y, Lai Y, Hu S, Qi C, Wang G, Tang Y. Strain-Driven Dyotropic Rearrangement: A Unified Ring-Expansion Approach to α-Methylene-γ-butyrolactones. Angew Chem Int Ed Engl 2020; 60:4221-4230. [PMID: 33155345 DOI: 10.1002/anie.202013169] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Indexed: 12/16/2022]
Abstract
An unprecedented strain-driven dyotropic rearrangement of α-methylene-β-lactones has been realized, which enables the efficient access of a wide range of α-methylene-γ-butyrolactones displaying remarkable structural diversity. Several appealing features of the reaction, including excellent efficiency, high stereospecificity, predictable chemoselectivity and broad substrate scope, render it a powerful tool for the synthesis of MBL-containing molecules of either natural or synthetic origin. Both experimental and computational evidences suggest that the new variant of dyotropic rearrangements proceed in a dualistic pattern: while an asynchronous concerted mechanism most likely accounts for the reactions featuring hydrogen migration, a stepwise process involving a phenonium ion intermediate is favored in the cases of aryl migration. The great synthetic potential of the title reaction is exemplified by its application to the efficient construction of several natural products and relevant scaffolds.
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Affiliation(s)
- Xiaoqiang Lei
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Yuanhe Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing, 100871, China
| | - Yang Lai
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), College of Chemistry, Peking University, Beijing, 100871, China
| | - Shengkun Hu
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Chen Qi
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Gelin Wang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Yefeng Tang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, China
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17
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Bai J, Chen B, Zhang G. Enantioselective Synthesis of
cis
‐2,
6‐Disubstituted
‐4‐methylene Tetrahydropyrans via Chromium Catalysis
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jing Bai
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Bin Chen
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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18
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Li C, Chen B, Ma X, Mo X, Zhang G. Light‐Promoted Copper‐Catalyzed Enantioselective Alkylation of Azoles. Angew Chem Int Ed Engl 2020; 60:2130-2134. [DOI: 10.1002/anie.202009323] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/06/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Chen Li
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Bin Chen
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xiaodong Ma
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xueling Mo
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
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19
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Fernandes RA, Chaudhari DA, Jha AK. Evolution of Strategies in Paraconic Acids Synthesis. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000353] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Rodney A. Fernandes
- Department of Chemistry Indian Institute of Technology Bombay Powai, Mumbai 400076 Maharashtra India
| | - Dipali A. Chaudhari
- Department of Chemistry Indian Institute of Technology Bombay Powai, Mumbai 400076 Maharashtra India
| | - Amit K. Jha
- Department of Chemistry Indian Institute of Technology Bombay Powai, Mumbai 400076 Maharashtra India
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20
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Lei G, Zhang H, Chen B, Xu M, Zhang G. Copper-catalyzed enantioselective arylalkynylation of alkenes. Chem Sci 2020; 11:1623-1628. [PMID: 32206280 PMCID: PMC7069229 DOI: 10.1039/c9sc04029c] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 11/26/2019] [Indexed: 12/15/2022] Open
Abstract
Enantioselective aryl and alkynylation of activated/nonactivated alkenes.
A copper-catalyzed enantioselective arylalkynylation of alkenes with diaryliodonium salt and a monosubstituted alkyne is reported. The three-component coupling reactions proceed under mild reaction conditions with a broad substrate scope, leading to synthetically valuable 1,2-diaryl-3-butynes. The key to the success of this chemistry is the employment of the chiral bisoxazoline-phenylaniline (BOPA) ligand. A novel reaction pathway involving the phenyl radical generation under thermal copper catalysis is proposed according to mechanistic studies.
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Affiliation(s)
- Guangyue Lei
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Center for Excellence in Molecular Synthesis , University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China .
| | - Hanwen Zhang
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Center for Excellence in Molecular Synthesis , University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China .
| | - Bin Chen
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Center for Excellence in Molecular Synthesis , University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China .
| | - Meichen Xu
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Center for Excellence in Molecular Synthesis , University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China .
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Center for Excellence in Molecular Synthesis , University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China .
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21
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Zhang Y, Sun Y, Chen B, Xu M, Li C, Zhang D, Zhang G. Copper-Catalyzed Photoinduced Enantioselective Dual Carbofunctionalization of Alkenes. Org Lett 2020; 22:1490-1494. [DOI: 10.1021/acs.orglett.0c00071] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yajing Zhang
- Institute of Pharmaceutical Science, China Pharmaceutical University, Nanjing 210009, China
| | - Youwen Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Bin Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Meichen Xu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Chen Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Dayong Zhang
- Institute of Pharmaceutical Science, China Pharmaceutical University, Nanjing 210009, China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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22
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He H, Liu Z, Wang W, Jiang X. Synthesis and cytotoxic evaluation of halogenated α-exo-methylene-lactones. Bioorg Med Chem 2020; 28:115281. [PMID: 31889606 DOI: 10.1016/j.bmc.2019.115281] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 12/03/2019] [Accepted: 12/18/2019] [Indexed: 11/26/2022]
Abstract
α-exo-Methylene-γ-butyrolactones and α-exo-methylene-δ-valerolactones constitute an important group of natural and bioactive products. A simple and general protocol of halolactonization of dienoic acids to obtain various α-exo-methylene-lactones in excellent yields is described. The resulting halogenated α-exo-methylene-lactones were found to exhibit potent cytotoxic activities.
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Affiliation(s)
- Haoquan He
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zheng Liu
- Foshan Stomatology Hospital, School of Stomatology and Medicine, Foshan University, Foshan 528000, China
| | - Wei Wang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xiaojian Jiang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China.
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23
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Zhang H, Chen B, Zhang G. Enantioselective 1,2-Alkylhydroxylmethylation of Alkynes via Chromium/Cobalt Cocatalysis. Org Lett 2019; 22:656-660. [DOI: 10.1021/acs.orglett.9b04430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hanwen Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P.R. China
| | - Bin Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P.R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P.R. China
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24
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Wang W, He H, Gan M, Wang H, Wang Y, Jiang X. Enantioselective Syntheses of α‐
exo
‐Methylene‐Lactones via Organocatalytic Halolactonization. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900728] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wei Wang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of PharmacyJinan University Guangzhou 510632 People's Republic of China
| | - Haoquan He
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of PharmacyJinan University Guangzhou 510632 People's Republic of China
| | - Min Gan
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of PharmacyJinan University Guangzhou 510632 People's Republic of China
| | - Haitao Wang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of PharmacyJinan University Guangzhou 510632 People's Republic of China
| | - Yuqiang Wang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of PharmacyJinan University Guangzhou 510632 People's Republic of China
| | - Xiaojian Jiang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of PharmacyJinan University Guangzhou 510632 People's Republic of China
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25
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Sarkale AM, Maurya V, Giri S, Appayee C. Stereodivergent Synthesis of Chiral Paraconic Acids via Dynamic Kinetic Resolution of 3-Acylsuccinimides. Org Lett 2019; 21:4266-4270. [PMID: 31140820 DOI: 10.1021/acs.orglett.9b01445] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A direct N-heterocyclic carbene (NHC) catalysis of maleimides with alkyl aldehydes is established for the synthesis of 3-acylsuccinimides. The first dynamic kinetic resolution of 3-acylsuccinimides is accomplished through asymmetric transfer hydrogenation. These two catalytic methodologies are utilized for the synthesis of each enantiomer of trans-paraconic acids in three steps and cis-paraconic acids in four steps with good yields and high stereoselectivities. This stereodivergent synthetic methodology is applied for the synthesis of seven bioactive paraconic acid natural products.
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Affiliation(s)
- Abhijeet M Sarkale
- Discipline of Chemistry , Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar , Gujarat 382355 , India
| | - Vidyasagar Maurya
- Discipline of Chemistry , Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar , Gujarat 382355 , India
| | - Sachin Giri
- Discipline of Chemistry , Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar , Gujarat 382355 , India
| | - Chandrakumar Appayee
- Discipline of Chemistry , Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar , Gujarat 382355 , India
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26
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Nagata A, Akagi Y, Masoud SS, Yamanaka M, Kittaka A, Uesugi M, Odagi M, Nagasawa K. Stereoselective Synthesis of Four Calcitriol Lactone Diastereomers at C23 and C25. J Org Chem 2019; 84:7630-7641. [DOI: 10.1021/acs.joc.9b00403] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akiko Nagata
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei City 184-8588,
Tokyo, Japan
| | - Yusuke Akagi
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei City 184-8588,
Tokyo, Japan
| | - Shadi Sedghi Masoud
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei City 184-8588,
Tokyo, Japan
| | - Masahiro Yamanaka
- Department of Chemistry, Faculty of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku 171-8501, Tokyo, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi 173-8605, Tokyo, Japan
| | | | - Minami Odagi
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei City 184-8588,
Tokyo, Japan
| | - Kazuo Nagasawa
- Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei City 184-8588,
Tokyo, Japan
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27
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Xiong Y, Ma X, Zhang G. Copper-Catalyzed Intermolecular Carboamination of Alkenes Induced by Visible Light. Org Lett 2019; 21:1699-1703. [DOI: 10.1021/acs.orglett.9b00252] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yang Xiong
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P.R. China
| | - Xiaodong Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P.R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P.R. China
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28
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Ma K, Yin X, Dai M. Total Syntheses of Bisdehydroneostemoninine and Bisdehydrostemoninine by Catalytic Carbonylative Spirolactonization. Angew Chem Int Ed Engl 2018; 57:15209-15212. [PMID: 30230670 PMCID: PMC6459687 DOI: 10.1002/anie.201809114] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/14/2018] [Indexed: 12/20/2022]
Abstract
The first total syntheses of the stemona alkaloids bisdehydroneostemoninine and bisdehydrostemoninine in racemic forms have been achieved. The synthetic strategy features a novel palladium-catalyzed carbonylative spirolactonization of a hydroxycyclopropanol to rapidly construct the oxaspirolactone moiety. It also features a Lewis acid promoted tandem Friedel-Crafts cyclization and lactonization to form the 5-7-5 tricyclic core of the target stemona alkaloids.
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Affiliation(s)
- Kaiqing Ma
- Department of Chemistry, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, Indiana, 47907; Modern Research Center for Traditional Chinese Medicine of Shanxi University, No.92, Wucheng Road, Taiyuan 03006, Shanxi, China
| | - Xianglin Yin
- Department of Chemistry, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, Indiana 47907
| | - Mingji Dai
- Department of Chemistry, Center for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, Indiana, 47907,
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29
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Ma K, Yin X, Dai M. Total Syntheses of Bisdehydroneostemoninine and Bisdehydrostemoninine by Catalytic Carbonylative Spirolactonization. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809114] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kaiqing Ma
- Department of Chemistry Center for Cancer Research, and Institute for Drug Discovery Purdue University West Lafayette Indiana 47907 USA
- Modern Research Center for Traditional Chinese Medicine, of Shanxi University Taiyuan 03006 Shanxi China
| | - Xianglin Yin
- Department of Chemistry Center for Cancer Research, and Institute for Drug Discovery Purdue University West Lafayette Indiana 47907 USA
| | - Mingji Dai
- Department of Chemistry Center for Cancer Research, and Institute for Drug Discovery Purdue University West Lafayette Indiana 47907 USA
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30
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Lagoutte R, Pastor M, Berthet M, Winssinger N. Rapid and scalable synthesis of chiral bromolactones as precursors to α-exo-methylene-γ-butyrolactone-containing sesquiterpene lactones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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31
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Sun Y, Zhang G. Palladium-Catalyzed Formal [4+2] Cycloaddition of Benzoic and Acrylic Acids with 1,3-Dienes via C-H Bond Activation: Efficient Access to 3,4-Dihydroisocoumarin and 5,6-Dihydrocoumalins. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800149] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Youwen Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road; Shanghai 200032 China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road; Shanghai 200032 China
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32
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Xiong Y, Zhang G. Enantioselective 1,2-Difunctionalization of 1,3-Butadiene by Sequential Alkylation and Carbonyl Allylation. J Am Chem Soc 2018; 140:2735-2738. [DOI: 10.1021/jacs.7b12760] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yang Xiong
- State Key Laboratory of Organometallic Chemistry,
Shanghai Institute of Organic Chemistry, Center for Excellence in
Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry,
Shanghai Institute of Organic Chemistry, Center for Excellence in
Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
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33
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Zhang H, Yao Q, Cao W, Ge S, Xu J, Liu X, Feng X. Catalytic enantioselective ene-type reactions of vinylogous hydrazone: construction of α-methylene-γ-butyrolactone derivatives. Chem Commun (Camb) 2018; 54:12511-12514. [DOI: 10.1039/c8cc07567k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Catalytic asymmetric ene-type reactions of vinylogous hydrazone with isatins, α-ketoester, imines and aldehydes were accomplished which gave an environmentally friendly, straightforward approach to afford bioactive chiral α-methylene-γ-butyrolactone derivatives.
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Affiliation(s)
- Hang Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Qian Yao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Shulin Ge
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jinxiu Xu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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34
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Zhang Y, Guo Q, Sun X, Lu J, Cao Y, Pu Q, Chu Z, Gao L, Song Z. Total Synthesis of Bryostatin 8 Using an Organosilane-Based Strategy. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201711452] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuebao Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Qianyou Guo
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Xianwei Sun
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Ji Lu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Yanjun Cao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Qiang Pu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Zhiwen Chu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Lu Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Zhenlei Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin 300071 China
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35
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Zhang Y, Guo Q, Sun X, Lu J, Cao Y, Pu Q, Chu Z, Gao L, Song Z. Total Synthesis of Bryostatin 8 Using an Organosilane-Based Strategy. Angew Chem Int Ed Engl 2017; 57:942-946. [PMID: 29210495 DOI: 10.1002/anie.201711452] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Yuebao Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Qianyou Guo
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Xianwei Sun
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Ji Lu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Yanjun Cao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Qiang Pu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Zhiwen Chu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Lu Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
| | - Zhenlei Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy; Sichuan University; Chengdu 610041 China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin 300071 China
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36
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Barbier-type anti-Diastereo- and Enantioselective Synthesis of β-Trimethylsilyl, Fluorinated Methyl, Phenylthio Homoallylic Alcohols. Sci Rep 2017; 7:4873. [PMID: 28687768 PMCID: PMC5501818 DOI: 10.1038/s41598-017-04986-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 05/23/2017] [Indexed: 12/20/2022] Open
Abstract
Catalytic Asymmetric allylation of aldehydes with functionalized allylic reagents represents an important process in synthetic organic chemistry because the resulting chiral homoallylic alcohols are valuable building blocks in diverse research fields. Despite the obvious advantages of allyl halides as allylation reagent under Barbier-type conditions, catalytic asymmetric version using functionalized allyl halides remains largely underdeveloped. Here, we addressed this issue by employing a chromium-catalysis system. The use of readily available allyl bromides with γ substitutions including trimethylsilyl, fluorinated methyl and phenylthio groups provided an efficient and convenient method to introduce those privileged functionalities into homoallylic alcohols. Good yields, high anti-diastereo- and excellent enantioselectivities were achieved under mild reaction conditions.
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37
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38
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Li Y, Ibsen L, Jørgensen KA. Formal Asymmetric α-Alkenylation of Aldehydes and the Synthetic Application toward Forming α-exo-Methylene-γ-butyrolactones and Skipped Dienes. Org Lett 2017; 19:1200-1203. [DOI: 10.1021/acs.orglett.7b00254] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yang Li
- Department of Chemistry, Aarhus University, Langelandsgade
140, DK-8000 Aarhus
C, Denmark
| | - Lise Ibsen
- Department of Chemistry, Aarhus University, Langelandsgade
140, DK-8000 Aarhus
C, Denmark
| | - Karl Anker Jørgensen
- Department of Chemistry, Aarhus University, Langelandsgade
140, DK-8000 Aarhus
C, Denmark
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39
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Chen W, Bai J, Zhang G. Chromium-Catalysed Asymmetric Dearomatization Addition Reactions of Bromomethylnaphthalenes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600962] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Weiqiang Chen
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Jing Bai
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
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40
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Wang G, Sun S, Mao Y, Xie Z, Liu L. Chromium(II)-catalyzed enantioselective arylation of ketones. Beilstein J Org Chem 2016; 12:2771-2775. [PMID: 28144349 PMCID: PMC5238525 DOI: 10.3762/bjoc.12.275] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 12/06/2016] [Indexed: 11/23/2022] Open
Abstract
The chromium-catalyzed enantioselective addition of carbo halides to carbonyl compounds is an important transformation in organic synthesis. However, the corresponding catalytic enantioselective arylation of ketones has not been reported to date. Herein, we report the first Cr-catalyzed enantioselective addition of aryl halides to both arylaliphatic and aliphatic ketones with high enantioselectivity in an intramolecular version, providing facile access to enantiopure tetrahydronaphthalen-1-ols and 2,3-dihydro-1H-inden-1-ols containing a tertiary alcohol.
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Affiliation(s)
- Gang Wang
- Shenzhen Research Institute of Shandong University, Shenzhen 518057, China
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Shutao Sun
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Ying Mao
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Zhiyu Xie
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Lei Liu
- Shenzhen Research Institute of Shandong University, Shenzhen 518057, China
- School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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41
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Xiong Y, Zhang G. Enantioselective Synthesis of Quaternary Stereocenters via Chromium Catalysis. Org Lett 2016; 18:5094-5097. [DOI: 10.1021/acs.orglett.6b02540] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yang Xiong
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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42
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Wessjohann LA, Wild H, Ferreira LA, Schrekker HS. Synthesis of α-alkenyl-β-hydroxy adducts by α-addition of unprotected 4-bromocrotonic acid and amides with aldehydes and ketones by chromium(II)-mediated reactions. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ludger A. Wessjohann
- Leibniz Institute of Plant Biochemistry; Weinberg 3 D-06120 Halle (Saale) Germany
- Ludwig Maximilians Universität München; Butenandtstrasse 5-13, D-081377 München Germany
| | - Harry Wild
- Ludwig Maximilians Universität München; Butenandtstrasse 5-13, D-081377 München Germany
| | - Leonildo A. Ferreira
- Universidade Federal do Rio Grande do Sul; Institute of Chemistry; Av. Bento Gonçalves 9500 Porto Alegre - RS, CEP: 91.501-970 Brazil
| | - Henri S. Schrekker
- Leibniz Institute of Plant Biochemistry; Weinberg 3 D-06120 Halle (Saale) Germany
- Universidade Federal do Rio Grande do Sul; Institute of Chemistry; Av. Bento Gonçalves 9500 Porto Alegre - RS, CEP: 91.501-970 Brazil
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43
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Tian Q, Bai J, Chen B, Zhang G. Chromium-Catalyzed Asymmetric Dearomatization Addition Reactions of Halomethyl Heteroarenes. Org Lett 2016; 18:1828-31. [DOI: 10.1021/acs.orglett.6b00559] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Qingshan Tian
- State Key
Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Jing Bai
- State Key
Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Bin Chen
- State Key
Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Guozhu Zhang
- State Key
Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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44
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Yousif M, Cabelof AC, Martin PD, Lord RL, Groysman S. Synthesis of a mononuclear, non-square-planar chromium(ii) bis(alkoxide) complex and its reactivity toward organic carbonyls and CO2. Dalton Trans 2016; 45:9794-804. [DOI: 10.1039/c6dt00279j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rare non-square-planar mononuclear Cr(ii) bis(alkoxide) complex Cr(OR′)2(THF)2 is reported and its reactivity with organic carbonyls and CO2 is investigated.
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Affiliation(s)
- Maryam Yousif
- Department of Chemistry
- Wayne State University
- Detroit
- USA
| | - Alyssa C. Cabelof
- Department of Chemistry
- Wayne State University
- Detroit
- USA
- Department of Chemistry
| | | | - Richard L. Lord
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
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