1
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Romero AH. C-H Bond Functionalization of N-Heteroarenes Mediated by Selectfluor. Top Curr Chem (Cham) 2023; 381:29. [PMID: 37736818 DOI: 10.1007/s41061-023-00437-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 08/21/2023] [Indexed: 09/23/2023]
Abstract
Herein, recent developments for Selectfluor-mediated C-H functionalization of N-heteroarenes are described. This type of C-H bond activation is an attractive and competitive alternative to traditional methodologies, allowing the functionalization of a variety of chemical functions. In addition, Selectfluor is a more sustainable and economically accessible oxidant compared with expensive/toxic metals or hazardous peroxides. For a practical understanding, the current review classified systematically the reported strategies in four subsections as follows: (1) carbon-carbon formation, (2) carbon-nitrogen bond formation, (3) carbon-chalcogen bond, and (4) carbon-halogen bond formation. Mechanistic aspects and reaction conditions are fully discussed to provide an understanding of the aspects that govern C-H functionalization in N-heteroarenes mediated by Selectfluor.
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Affiliation(s)
- Angel H Romero
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Igua 4225, 11400, Montevideo, Uruguay.
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2
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Karandikar SS, Metze BE, Roberts RA, Stuart DR. Oxidative Cycloaddition Reactions of Arylboron Reagents via a One-pot Formal Dehydroboration Sequence. Org Lett 2023; 25:6374-6379. [PMID: 37610877 DOI: 10.1021/acs.orglett.3c02379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Arylboron compounds are widely available and synthetically useful reagents in which the boron group is typically substituted. Herein, we show that the boron group and ortho-hydrogen atom are substituted in a formal cycloaddition reaction. This transformation is enabled by a one-pot sequence involving diaryliodonium and aryne intermediates. The scope of arylboron reagents and arynophiles is demonstrated, and the method is applied to the formal synthesis of an investigational drug candidate.
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Affiliation(s)
- Shubhendu S Karandikar
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Bryan E Metze
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Riley A Roberts
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - David R Stuart
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
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3
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Shui L, Liu F, Wang X, Ma C, Qiang Q, Shen M, Fang Y, Ni SF, Rong ZQ. Ligand-Induced chemodivergent nickel-catalyzed annulations via tandem isomerization/esterification and direct O-allylic substitution: Divergent access to 3,4-dihydrocoumarins and 2H-chromenes. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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4
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Recent Advances in Nickel-Catalyzed C-C Cross-Coupling. TOP ORGANOMETAL CHEM 2023. [DOI: 10.1007/3418_2023_85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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5
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Akkarasereenon K, Batsomboon P, Ruchirawat S, Ploypradith P. Functionalized Chromans from ortho-Quinone Methides and Arylallenes. J Org Chem 2022; 87:15863-15887. [PMID: 36373006 DOI: 10.1021/acs.joc.2c01962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
ortho-Quinone methides (o-QMs) underwent formal [4 + 2]-cycloaddition reactions with arylallenes regioselectively at the styrenyl olefin to furnish the corresponding 3-methylene-2-arylchromans in moderate to good yields (up to 88%). When R ≠ H, the reactions also proceeded with moderate stereoselectivity (up to 5:1) which was governed by the nature of the R group. The 3-methylene-2-arylchromans could serve as common intermediates for further functionalization including epoxidation, oxidative cleavage/Baeyer-Villiger oxidation, Riley oxidation, acid-catalyzed rearrangement, and Pd-catalyzed cross-coupling reactions to furnish the corresponding derivatives in moderate to good yields.
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Affiliation(s)
- Kornkamon Akkarasereenon
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 906 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
| | - Paratchata Batsomboon
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 906 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.,Center of Excellence on Environmental Health and Toxicology, Office of the Permanent Secretary (OPS), Ministry of Higher Education, Science, Research and Innovation (MHESI), Bangkok 10400, Thailand
| | - Poonsakdi Ploypradith
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 906 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.,Center of Excellence on Environmental Health and Toxicology, Office of the Permanent Secretary (OPS), Ministry of Higher Education, Science, Research and Innovation (MHESI), Bangkok 10400, Thailand
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6
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Toupalas G, Thomann G, Schlemper L, Rivero-Crespo MA, Schmitt HL, Morandi B. Pd-Catalyzed Direct Deoxygenative Arylation of Non-π-Extended Benzyl Alcohols with Boronic Acids via Transient Formation of Non-Innocent Isoureas. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01858] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Georgios Toupalas
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Gianin Thomann
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Lukas Schlemper
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Miguel A. Rivero-Crespo
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Hendrik L. Schmitt
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Bill Morandi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH ZurichRINGGOLD, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
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7
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Ghorai D, Cristòfol À, Kleij AW. Nickel‐Catalyzed Allylic Substitution Reactions: An Evolving Alternative. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100820] [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)
- Debasish Ghorai
- Institute of Chemical Research of Catalonia (ICIQ) the Barcelona Institute of Science & Technology (BIST) Av. Països Catalans 16 43007– Tarragona Spain
| | - Àlex Cristòfol
- Institute of Chemical Research of Catalonia (ICIQ) the Barcelona Institute of Science & Technology (BIST) Av. Països Catalans 16 43007– Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ) the Barcelona Institute of Science & Technology (BIST) Av. Països Catalans 16 43007– Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluis Companys 23 08010– Barcelona Spain
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8
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Feng B, Zhang G, Feng X, Chen Y. Palladium-catalyzed decarbonylative methylation of aryl carboxylic acids. Org Chem Front 2022. [DOI: 10.1039/d1qo01756j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described herein is a palladium-catalyzed decarbonylative methylation of general carboxylic acids, providing an efficient method for Ar–Me bond formation.
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Affiliation(s)
- Boya Feng
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Guodong Zhang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Xu Feng
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
| | - Yu Chen
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
- Jiangsu Province Engineering Research Center of Eco-cultivation and High-value Utilization of Chinese Medicinal Materials, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, China
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9
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Hu F, Xia Y, Jia J. Transition-Metal-Catalyzed Nucleophilic Dearomatization of Electron-Deficient Heteroarenes. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1577-7638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractIn recent decades, transition-metal-catalyzed nucleophilic dearomatization of electron-deficient heteroarenes, such as pyridines, quinolines, isoquinolines and nitroindoles, has become a powerful method for accessing unsaturated heterocycles. This short review summarizes nucleophilic dearomatizations of electron-deficient heteroarenes with carbon- and heteroatom-based nucleophiles via transition-metal catalysis. A significant number of functionalized heterocycles are obtained via this transformation. Importantly, many of these reactions are carried out in an enantioselective manner by means of asymmetric catalysis, providing a unique method for the construction of enantioenriched heterocycles.1 Introduction2 Transition-Metal-Catalyzed Nucleophilic Dearomatization of Heteroarenes via Alkynylation3 Transition-Metal-Catalyzed Nucleophilic Dearomatization of Heteroarenes via Arylation4 Transition-Metal-Catalyzed Nucleophilic Dearomatization of Heteroarenes with Other Nucleophiles5 Transition-Metal-Catalyzed Nucleophilic Dearomatization with Nucleophiles Formed In Situ6 Conclusion and Outlook
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Affiliation(s)
- Fangdong Hu
- School of Chemistry and Chemical Engineering, Linyi University
| | - Ying Xia
- West China School of Public Health and West China Fourth Hospital, State Key Laboratory of Biotherapy, Sichuan University
| | - Jie Jia
- West China School of Public Health and West China Fourth Hospital, State Key Laboratory of Biotherapy, Sichuan University
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10
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Li YQ, Shi SL. Ni-Catalyzed Coupling of Butadiene, Aldimines, and Arylboronic Acids to Homoallylic Amines under Base-Free Conditions. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yu-Qing 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
| | - Shi-Liang Shi
- 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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11
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Zhao B, Rogge T, Ackermann L, Shi Z. Metal-catalysed C-Het (F, O, S, N) and C-C bond arylation. Chem Soc Rev 2021; 50:8903-8953. [PMID: 34190223 DOI: 10.1039/c9cs00571d] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The formation of C-aryl bonds has been the focus of intensive research over the last decades for the construction of complex molecules from simple, readily available feedstocks. Traditionally, these strategies involve the coupling of organohalides (I, Br, Cl) with organometallic reagents (Mg, Zn, B, Si, Sn,…) such as Kumada-Corriu, Negishi, Suzuki-Miyaura, Hiyama and Sonogashira cross-couplings. More recently, alternative methods have provided access to these products by reactions with less reactive C-Het (F, O, S, N) and C-C bonds. Compared to traditional methods, the direct cleavage and arylation of these chemical bonds, the essential link in accessible feedstocks, has become increasingly important from the viewpoint of step-economy and functional-group compatibility. This comprehensive review aims to outline the development and advances of this topic, which was organized into (1) C-F bond arylation, (2) C-O bond arylation, (3) C-S bond arylation, (4) C-N bond arylation, and (5) C-C bond arylation. Substantial attention has been paid to the strategies and mechanistic investigations. We hope that this review can trigger chemists to discover more efficient methodologies to access arylation products by cleavage of these C-Het and C-C bonds.
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Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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12
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Iqbal N, Lee DS, Jung H, Cho EJ. Synergistic Effects of Boron and Oxygen Interaction Enabling Nickel-Catalyzed Exogenous Base-Free Stereoselective Arylvinylation of Alkynes through Vinyl Transposition. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00536] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Naeem Iqbal
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| | - Da Seul Lee
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| | - Hoimin Jung
- Department of Chemistry, Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Eun Jin Cho
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
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13
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Li YQ, Chen G, Shi SL. Regio- and Trans-Selective Ni-Catalyzed Coupling of Butadiene, Carbonyls, and Arylboronic Acids to Homoallylic Alcohols under Base-Free Conditions. Org Lett 2021; 23:2571-2577. [PMID: 33661655 DOI: 10.1021/acs.orglett.1c00488] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We herein report a Ni-catalyzed three-component coupling of 1,3-butadiene, carbonyl compounds, and arylboronic acids as a general synthetic approach to 1,4-disubstituted homoallylic alcohols, an important class of compounds, which have previously not been straightforward to access. The reaction occurs efficiently using a Ni(cod)2 catalyst without any external base and ligand at ambient temperature and allows a highly regioselective and trans-selective 1,4-dicarbofunctionalization of feedstock butadiene in a single operation. This simple and practical protocol could apply to a comprehensive scope of substrates. The neutral conditions show extraordinary tolerance for even highly base-sensitive functional groups.
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Affiliation(s)
- Yu-Qing 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
| | - Guang 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
| | - Shi-Liang Shi
- 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.,School of Pharmacy, Fudan University, Shanghai 201203, China
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14
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Kadu BS. Suzuki–Miyaura cross coupling reaction: recent advancements in catalysis and organic synthesis. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02059a] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Suzuki–Miyaura cross coupling reaction (SMCR) – A milestone in the synthesis of C–C coupled compounds.
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15
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Szappanos Á, Mándi A, Gulácsi K, Lisztes E, Tóth BI, Bíró T, Antus S, Kurtán T. Synthesis and antiproliferative activity of 6-naphthylpterocarpans. Org Biomol Chem 2020; 18:2148-2162. [PMID: 32134098 DOI: 10.1039/d0ob00110d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Heck-oxyarylation of racemic 2-(1-naphthyl)- and 2-(2-naphthyl)-2H-chromene derivatives were carried out resulting diastereoselectively in (6S*,6aR*,11aR*)-6-(1-naphthyl)- and 6-(2-naphthyl)-pterocarpans as major products and bridged (6R*,12R*)-6,12-methanodibenzo[d,g][1,3]dioxocine derivatives as minor products. Antiproliferative activity of two 6-naphthylpterocarpans was identified by MTT assay against A2780 and WM35 human cancer cell lines with low micromolar IC50 values. The measured 0.80 and 3.51 μM IC50 values of the (6S*,6aR*,11aR*)-6-(1-naphthyl)pterocarpan derivative with 8,9-methylenedioxy substitution represent the best activities in the pterocarpan family. Enantiomers of the pterocarpan and dioxocine derivatives and their chiral 2-naphthylchroman-4-one and 2-naphthyl-2H-chromene precursors were separated by HPLC using chiral stationary phase. HPLC-ECD spectra were recorded and absolute configuration and low-energy solution conformations were determined by TDDFT-ECD calculations. Characteristic ECD transitions of the separated enantiomers were correlated with their absolute configuration.
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Affiliation(s)
- Ádám Szappanos
- Department of Organic Chemistry, University of Debrecen, P. O. Box 400, 4002 Debrecen, Hungary.
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16
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Lu XY, Yan LY, Li JS, Li JM, Zhou HP, Jiang RC, Liu CC, Lu R, Hu R. Base-free Ni-catalyzed Suzuki-type cross-coupling reactions of epoxides with boronic acids. Chem Commun (Camb) 2020; 56:109-112. [DOI: 10.1039/c9cc08079a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A Ni-catalyzed Suzuki-type cross-coupling of boronic acids with epoxides without an exogenous base and with broad substrate scope has been developed.
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Affiliation(s)
- Xiao-Yu Lu
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
- School of Chemistry and Chemical Engineering
| | - Lu-Yu Yan
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
| | - Jin-Song Li
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
| | - Jia-Mei Li
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
| | - Hai-pin Zhou
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
| | - Run-Chuang Jiang
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
| | - Chuang-Chuang Liu
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
| | - Ran Lu
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
| | - Rong Hu
- School of Materials and Chemical Engineering
- ChuZhou University
- Chu Zhou
- China
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18
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Bissonnette NB, Ellis JM, Hamann LG, Romanov-Michailidis F. Expedient access to saturated nitrogen heterocycles by photoredox cyclization of imino-tethered dihydropyridines. Chem Sci 2019; 10:9591-9596. [PMID: 32064071 PMCID: PMC6993613 DOI: 10.1039/c9sc03429c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 08/26/2019] [Indexed: 11/21/2022] Open
Abstract
A large proportion of medicinally relevant molecules bear nitrogen and sp3-hybridized carbon functionalities. Overwhelmingly, these atoms are found as part of (hetero)cyclic structures. Despite their importance, synthetic approaches to saturated nitrogen heterocycles are limited to several established stoichiometric alkylation techniques, as well as a few methods involving C-H bond activation. The synthetic community remains interested in more general, mild, and sustainable ways to access these motifs. Here we describe a dual-catalyst system composed of an iridium photocatalyst and a lithium phosphate base that is capable of selectively homolyzing the N-H bond of 4-alkyl-1,4-dihydropyridines, presumably by proton-coupled-electron-transfer (PCET), and mediating efficient cyclization of the resultant carbon-centered radicals with tethered imines. The outcome of this transformation is access to a broad range of structurally complex nitrogen heterocycles obtainable from simple aldehyde starting materials in a highly chemoselective manner.
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Affiliation(s)
- Noah B Bissonnette
- Celgene Corporation , 200 Cambridge Park Drive, Suite 3000 , Cambridge , MA 02140 , USA . ;
| | - J Michael Ellis
- Celgene Corporation , 200 Cambridge Park Drive, Suite 3000 , Cambridge , MA 02140 , USA . ;
| | - Lawrence G Hamann
- Celgene Corporation , 200 Cambridge Park Drive, Suite 3000 , Cambridge , MA 02140 , USA . ;
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19
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Jiang C, Chen Y, Zhang H, Tan JP, Wang T. Catalyst-Free Synthesis of α-Functionalized 2H-Chromenes in Water: A Tandem Self-Promoted pseudo-Substitution and Decarboxylation Process. Chem Asian J 2019; 14:2938-2944. [PMID: 31298487 DOI: 10.1002/asia.201900641] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/01/2019] [Indexed: 11/07/2022]
Abstract
A catalyst-free decarboxylative reaction between β-keto acids and 2H-chromene acetals in water was developed. This reaction featured a broad substrate scope and easily obtainable starting materials to afford α-functionalized 2H-chromenes in high yields. The synthetic value of this protocol was also demonstrated by the scale-up synthesis and versatile conversions of the title product into other useful compounds. In addition, control experiments indicated that water was essential for the reactivity. Mechanistic studies further revealed that the reaction proceeded through a self-promoted tandem pseudo-substitution and decarboxylation process.
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Affiliation(s)
- Chunhui Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212003, P. R. China.,Key Laboratory of Green Chemistry&Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Yayun Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212003, P. R. China.,Key Laboratory of Green Chemistry&Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Hongkui Zhang
- Key Laboratory of Green Chemistry&Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Jian-Ping Tan
- Key Laboratory of Green Chemistry&Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Tianli Wang
- Key Laboratory of Green Chemistry&Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
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20
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Murai M, Yamamoto M, Takai K. Rhenium-Catalyzed Regioselective ortho-Alkenylation and [3 + 2 + 1] Cycloaddition of Phenols with Internal Alkynes. Org Lett 2019; 21:3441-3445. [PMID: 30998367 DOI: 10.1021/acs.orglett.9b01214] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An operationally simple and direct rhenium-catalyzed ortho-alkenylation ( C-alkenylation) of unprotected phenols with alkynes was developed. The protocol provided ortho-alkenylphenols exclusively, and formation of para- or multiply alkenylated phenols and hydrophenoxylation ( O-alkenylation) products were not observed. The [3 + 2 + 1] cycloaddition of phenols and two alkynes via ortho-alkenylation was also demonstrated, in which the alkynes functioned as both two- and one-carbon units. These reactions proceeded with readily available starting materials under neutral conditions without additional ligands.
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Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka, Kita-ku , Okayama 700-8530 , Japan
| | - Masaki Yamamoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka, Kita-ku , Okayama 700-8530 , Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka, Kita-ku , Okayama 700-8530 , Japan
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21
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Yang Q, Wang Y, Luo S, Wang JJ. Kinetic Resolution and Dynamic Kinetic Resolution of Chromene by Rhodium-Catalyzed Asymmetric Hydroarylation. Angew Chem Int Ed Engl 2019; 58:5343-5347. [PMID: 30786133 DOI: 10.1002/anie.201900721] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/18/2019] [Indexed: 11/09/2022]
Abstract
A highly efficient kinetic resolution and dynamic kinetic resolution of chromene is reported for the first time and they procced by a rhodium-catalyzed asymmetric hydroarylation pathway. This new approach offers versatile access to various chiral 2,3-diaryl-chromanes containing vicinal stereogenic centers, as well as the recovered chiral flavenes, in high yields with excellent ee values (s factor up to 532). Particularly noteworthy is that this strategy can be further extended to the establishment of a dynamic version of the kinetic resolution of chromene acetals and allows complete access to chiral isoflavanes and α-aryl hydrocoumarins.
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Affiliation(s)
- Qingjing Yang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yanbo Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Shihui Luo
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Jun Joelle Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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22
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Russell JEA, Entz ED, Joyce IM, Neufeldt SR. Nickel-Catalyzed Stille Cross Coupling of C-O Electrophiles. ACS Catal 2019; 9:3304-3310. [PMID: 31057986 PMCID: PMC6497415 DOI: 10.1021/acscatal.9b00744] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Aryl sulfamates, tosylates, and mesylates undergo efficient Ni-catalyzed cross coupling with diverse organostannanes in the presence of relatively unhindered alkylphosphine ligands and KF. The coupling is valuable for difficult bond constructions, such as aryl- heteroaryl, aryl-alkenyl, and aryl-alkynyl, using non-triflate phenol derivatives. A combination of experimental and computational studies implicate an unusual mechanism for transmetalation involving an 8-centered cyclic transition state. This reaction is inhibited by chloride sources due to slow transmetalation of organostannanes at a Ni(II)-chloride intermediate. These studies help to explain why prior efforts to achieve Ni-catalyzed Stille coupling of phenol derivatives were unsuccessful.
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Affiliation(s)
- John E. A. Russell
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, USA
| | - Emily D. Entz
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, USA
| | - Ian M. Joyce
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, USA
| | - Sharon R. Neufeldt
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, USA
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23
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Yang Q, Wang Y, Luo S, Wang J(J. Kinetic Resolution and Dynamic Kinetic Resolution of Chromene by Rhodium‐Catalyzed Asymmetric Hydroarylation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900721] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Qingjing Yang
- Department of ChemistrySouthern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Yanbo Wang
- Department of ChemistrySouthern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Shihui Luo
- Department of ChemistrySouthern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Jun (Joelle) Wang
- Department of ChemistrySouthern University of Science and Technology Shenzhen Guangdong 518055 China
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24
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Bakkolla MG, Taduri AK, Bhoomireddy RD. A Facile Synthesis of Novel (
Z
)‐ethyl‐3‐(5‐substituted‐1‐alkyl/aryl‐1
H
‐indol‐3‐yl)‐2‐(
1
H
‐tetrazol‐5‐yl)acrylate. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mahesh Goud Bakkolla
- Department of ChemistryJawaharlal Nehru Technological University Hyderabad, College of Engineering, Kukatpally Hyderabad Telangana 500 085 India
| | - Ashok Kumar Taduri
- Department of ChemistryJawaharlal Nehru Technological University Hyderabad, College of Engineering, Kukatpally Hyderabad Telangana 500 085 India
| | - Rama Devi Bhoomireddy
- Department of ChemistryJawaharlal Nehru Technological University Hyderabad, College of Engineering, Kukatpally Hyderabad Telangana 500 085 India
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25
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Malapit CA, Bour JR, Brigham CE, Sanford MS. Base-free nickel-catalysed decarbonylative Suzuki-Miyaura coupling of acid fluorides. Nature 2018; 563:100-104. [PMID: 30356210 PMCID: PMC6212315 DOI: 10.1038/s41586-018-0628-7] [Citation(s) in RCA: 183] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 08/22/2018] [Indexed: 12/16/2022]
Abstract
The Suzuki-Miyaura cross-coupling of organoboron nucleophiles with aryl halide electrophiles is one of the most widely used carbon-carbon bond-forming reactions in organic and medicinal chemistry1,2. A key challenge associated with these transformations is that they generally require the addition of an exogenous base, the role of which is to enable transmetallation between the organoboron nucleophile and the metal catalyst3. This requirement limits the substrate scope of the reaction because the added base promotes competitive decomposition of many organoboron substrates3-5. As such, considerable research has focused on strategies for mitigating base-mediated side reactions6-12. Previous efforts have primarily focused either on designing strategically masked organoboron reagents (to slow base-mediated decomposition)6-8 or on developing highly active palladium precatalysts (to accelerate cross-coupling relative to base-mediated decomposition pathways)10-12. An attractive alternative approach involves identifying combinations of catalyst and electrophile that enable Suzuki-Miyaura-type reactions to proceed without an exogenous base12-14. Here we use this approach to develop a nickel-catalysed coupling of aryl boronic acids with acid fluorides15-17, which are formed in situ from readily available carboxylic acids18-22. This combination of catalyst and electrophile enables a mechanistic manifold in which a 'transmetallation-active' aryl nickel fluoride intermediate is generated directly in the catalytic cycle13,16. As such, this transformation does not require an exogenous base and is applicable to a wide range of base-sensitive boronic acids and biologically active carboxylic acids.
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26
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Synthesis of 4H-chromenes by silver (I)-catalyzed cycloaddition of ortho-quinone methides with N-allenamides. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9359-4] [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]
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27
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Li M, Chu R, Zhao Y, Hu W, Liu S. Formal carbene insertion into C O double bond: A facile approach to the synthesis of 2H-chromenes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Yang F, Li Y, Floreancig PE, Li X, Liu L. Copper-catalyzed oxidative cross-dehydrogenative coupling of 2H-chromenes and terminal alkynes. Org Biomol Chem 2018; 16:5144-5149. [PMID: 29963678 PMCID: PMC6051884 DOI: 10.1039/c8ob00949j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
An efficient copper-catalyzed cross-dehydrogenative coupling of 2H-chromenes and terminal alkynes mediated by DDQ has been established. A protic additive, EtOH, proved to be crucial for harmonizing the oxidation with a subsequent alkynylation step by retaining the oxidation state of an oxocarbenium ion in the form of acetal. The CDC reaction exhibits a good substrate scope, with a range of terminal aryl- and alkyl alkynes being well tolerated. The copper-catalyzed alkynylation of 2H-chromene acetals with terminal alkynes was also explored.
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Affiliation(s)
- Fei Yang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
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29
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30
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Zhang D, Hu W. Formal Carbene Insertion into C−O or C−N Bond: An Efficient Strategy for the Synthesis of 2-Substituted 2H
-Chromene Derivatives from Chromene Acetals or Hemiaminal Ethers. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800179] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dan Zhang
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Wenhao Hu
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
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31
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Payard PA, Perego LA, Ciofini I, Grimaud L. Taming Nickel-Catalyzed Suzuki-Miyaura Coupling: A Mechanistic Focus on Boron-to-Nickel Transmetalation. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00933] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Pierre-Adrien Payard
- PASTEUR, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Luca Alessandro Perego
- PASTEUR, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
- PSL Research University, Institut de Recherche de Chimie Paris IRCP, CNRS-Chimie ParisTech, 11 rue P. et M. Curie, F-75005 Paris 05, France
| | - Ilaria Ciofini
- PSL Research University, Institut de Recherche de Chimie Paris IRCP, CNRS-Chimie ParisTech, 11 rue P. et M. Curie, F-75005 Paris 05, France
| | - Laurence Grimaud
- PASTEUR, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
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32
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Heinz C, Lutz JP, Simmons EM, Miller MM, Ewing WR, Doyle AG. Ni-Catalyzed Carbon-Carbon Bond-Forming Reductive Amination. J Am Chem Soc 2018; 140:2292-2300. [PMID: 29341599 DOI: 10.1021/jacs.7b12212] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This report describes a three-component, Ni-catalyzed reductive coupling that enables the convergent synthesis of tertiary benzhydryl amines, which are challenging to access by traditional reductive amination methodologies. The reaction makes use of iminium ions generated in situ from the condensation of secondary N-trimethylsilyl amines with benzaldehydes, and these species undergo reaction with several distinct classes of organic electrophiles. The synthetic value of this process is demonstrated by a single-step synthesis of antimigraine drug flunarizine (Sibelium) and high yielding derivatization of paroxetine (Paxil) and metoprolol (Lopressor). Mechanistic investigations support a sequential oxidative addition mechanism rather than a pathway proceeding via α-amino radical formation. Accordingly, application of catalytic conditions to an intramolecular reductive coupling is demonstrated for the synthesis of endo- and exocyclic benzhydryl amines.
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Affiliation(s)
- Christoph Heinz
- Department of Chemistry, Princeton University , Princeton, New Jersey 08544, United States
| | - J Patrick Lutz
- Department of Chemistry, Princeton University , Princeton, New Jersey 08544, United States
| | - Eric M Simmons
- Chemical and Synthetic Development, Bristol-Myers Squibb , New Brunswick, New Jersey 08903, United States
| | - Michael M Miller
- Discovery Chemistry, Bristol-Myers Squibb , P.O. Box 5400, Princeton, New Jersey 08543-5400, United States
| | - William R Ewing
- Discovery Chemistry, Bristol-Myers Squibb , P.O. Box 5400, Princeton, New Jersey 08543-5400, United States
| | - Abigail G Doyle
- Department of Chemistry, Princeton University , Princeton, New Jersey 08544, United States
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33
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Miao Z, Zhou Z, Tang H, Yu M, Ramella D, Du X, Luan Y. Homodimerization of 2H-chromenes catalyzed by Brønsted-acid derived UiO-66 MOFs. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02362f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Brønsted acid UiO-66 MOFs were prepared for the efficient homo-dimerization of 2H-chromenes, which involves a tandem rearrangement/hetero-Diels–Alder reaction sequence.
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Affiliation(s)
- Zongcheng Miao
- Key Laboratory of Organic Polymer Photoelectric Materials
- School of Science
- Xijing University
- Xi'an
- PR China
| | - Zihao Zhou
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Houliang Tang
- Department of Chemistry
- Southern Methodist University
- Dallas
- USA
| | - Mengdie Yu
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | | | - Xin Du
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Yi Luan
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
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34
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Zhang SQ, Taylor BLH, Ji CL, Gao Y, Harris MR, Hanna LE, Jarvo ER, Houk KN, Hong X. Mechanism and Origins of Ligand-Controlled Stereoselectivity of Ni-Catalyzed Suzuki-Miyaura Coupling with Benzylic Esters: A Computational Study. J Am Chem Soc 2017; 139:12994-13005. [PMID: 28838241 PMCID: PMC5607113 DOI: 10.1021/jacs.7b04973] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Nickel catalysts have shown unique ligand control of stereoselectivity in the Suzuki-Miyaura cross-coupling of boronates with benzylic pivalates and derivatives involving C(sp3)-O cleavage. The SIMes ligand (1,3-dimesityl-4,5-dihydroimidazol-2-ylidene) produces the stereochemically inverted C-C coupling product, while the tricyclohexylphosphine (PCy3) ligand delivers the retained stereochemistry. We have explored the mechanism and origins of the ligand-controlled stereoselectivity with density functional theory (DFT) calculations. The oxidative addition determines the stereoselectivity with two competing transition states, an SN2 back-side attack type transition state that inverts the benzylic stereogenic center and a concerted oxidative addition through a cyclic transition state, which provides stereoretention. The key difference between the two transition states is the substrate-nickel-ligand angle distortion; the ligand controls the selectivity by differentiating the ease of this angle distortion. For the PCy3 ligand, the nickel-ligand interaction involves mainly σ-donation, which does not require a significant energy penalty for the angle distortion. The facile angle distortion with PCy3 ligand allows the favorable cyclic oxidative addition transition state, leading to the stereoretention. For the SIMes ligand, the extra d-p back-donation from nickel to the coordinating carbene increases the rigidity of the nickel-ligand bond, and the corresponding angle distortion is more difficult. This makes the concerted cyclic oxidative addition unfavorable with SIMes ligand, and the back-side SN2-type oxidative addition delivers the stereoinversion.
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Affiliation(s)
- Shuo-Qing Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Buck L. H. Taylor
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- Department of Chemistry, Carleton College, Minnesota 55057, United States
| | - Chong-Lei Ji
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Yuan Gao
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Michael R. Harris
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Luke E. Hanna
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Elizabeth R. Jarvo
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
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35
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Wu K, Doyle AG. Parameterization of phosphine ligands demonstrates enhancement of nickel catalysis via remote steric effects. Nat Chem 2017; 9:779-784. [PMID: 28754948 DOI: 10.1038/nchem.2741] [Citation(s) in RCA: 164] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 01/23/2017] [Indexed: 12/11/2022]
Abstract
The field of Ni-catalysed cross-coupling has seen rapid recent growth because of the low cost of Ni, its earth abundance, and its ability to promote unique cross-coupling reactions. Whereas advances in the related field of Pd-catalysed cross-coupling have been driven by ligand design, the development of ligands specifically for Ni has received minimal attention. Here, we disclose a class of phosphines that enable the Ni-catalysed Csp3 Suzuki coupling of acetals with boronic acids to generate benzylic ethers, a reaction that failed with known ligands for Ni and designer phosphines for Pd. Using parameters to quantify phosphine steric and electronic properties together with regression statistical analysis, we identify a model for ligand success. The study suggests that effective phosphines feature remote steric hindrance, a concept that could guide future ligand design tailored to Ni. Our analysis also reveals that two classic descriptors for ligand steric environment-cone angle and % buried volume-are not equivalent, despite their treatment in the literature.
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Affiliation(s)
- Kevin Wu
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
| | - Abigail G Doyle
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
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36
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Song L, Huang F, Guo L, Ouyang MA, Tong R. A cascade Claisen rearrangement/o-quinone methide formation/electrocyclization approach to 2H-chromenes. Chem Commun (Camb) 2017; 53:6021-6024. [DOI: 10.1039/c7cc03037a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new approach to 8-substituted 2H-chromenes is developed, featuring a novel cascade aromatic Claisen rearrangement/o-quinone methide formation/6π-electrocyclization.
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Affiliation(s)
- Liyan Song
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops
- Institute of Plant Virology
- Fujian Agriculture and Forestry University
- Fuzhou
- China
| | - Fang Huang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops
- Institute of Plant Virology
- Fujian Agriculture and Forestry University
- Fuzhou
- China
| | - Liwen Guo
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops
- Institute of Plant Virology
- Fujian Agriculture and Forestry University
- Fuzhou
- China
| | - Ming-An Ouyang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops
- Institute of Plant Virology
- Fujian Agriculture and Forestry University
- Fuzhou
- China
| | - Rongbiao Tong
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
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37
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Tanaka K, Shigematsu Y, Sukekawa M, Hoshino Y, Honda K. Regioselective one-pot synthesis of 2,3-diaryl-2H-1-benzopyrans via Brønsted acid-catalyzed [4+2] cycloaddition of salicylaldehydes with diarylacetylenes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.076] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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38
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Highly efficient access to 4-chloro-2H-chromenes and 1,2-dihydroquinolines under mild conditions: TMSCl-mediated cyclization of 2-propynolphenols/anilines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.103] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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39
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Gil-Negrete JM, Pérez Sestelo J, Sarandeses LA. Transition-Metal-Free Cross-Coupling of Indium Organometallics with Chromene and Isochroman Acetals Mediated by BF3·OEt2. Org Lett 2016; 18:4316-9. [PMID: 27530143 DOI: 10.1021/acs.orglett.6b02058] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A transition-metal-free coupling of triorganoindium reagents with benzopyranyl acetals mediated by a Lewis acid has been developed. The reaction of R3In with chromene and isochroman acetals in the presence of BF3·OEt2 afforded 2-substituted chromenes and 1-substituted isochromans, respectively, in good yields. The reactions proceed with a variety of triorganoindium reagents (aryl, heteroaryl, alkynyl, alkenyl, alkyl) using only 50 mol % of the organometallic, thus demonstrating the efficiency of these species. Preliminary mechanistic studies indicate the formation of an oxocarbenium ion intermediate in the presence of the Lewis acid.
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Affiliation(s)
- José M Gil-Negrete
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química Fundamental, Universidade da Coruña , E-15071 A Coruña, Spain
| | - José Pérez Sestelo
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química Fundamental, Universidade da Coruña , E-15071 A Coruña, Spain
| | - Luis A Sarandeses
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química Fundamental, Universidade da Coruña , E-15071 A Coruña, Spain
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40
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Yu C, Huang H, Li X, Zhang Y, Li H, Wang W. Aniline-Promoted Cyclization-Replacement Cascade Reactions of 2-Hydroxycinnamaldehydes with Various Carbonic Nucleophiles through In Situ Formed N,O-Acetals. Chemistry 2016; 22:9240-6. [PMID: 27230417 DOI: 10.1002/chem.201601112] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Indexed: 11/12/2022]
Abstract
In this study, we report the harnessing of new reactivity of N,O-acetals in an aminocatalytic fashion for organic synthesis. Unlike widely used strategies requiring the use of acids and/or elevated temperatures, direct replacement of the amine component of the N,O-acetals by carbon-centered nucleophiles for C-C bond formation is realized under mild reaction conditions. Furthermore, without necessary preformation of the N,O-acetals, an amine-catalyzed in situ formation of N,O-acetals is developed. Coupling both reactions into a one-pot operation enables the achievement of a catalytic process. We demonstrate the employment of simple anilines as promoters for the cyclization-substitution cascade reactions of trans-2-hydroxycinnamaldehydes with various carbonic nucleophiles including indoles, pyrroles, naphthols, phenols, and silyl enol ethers. The process offers an alternative approach to structurally diverse, "privileged" 2-substituted 2H-chromenes. The synthetic power of the new process is furthermore shown by its application in a 2-step synthesis of the natural product candenatenin E and for the facile installation of 2-substituted 2H-chromene moieties into biologically active indoles.
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Affiliation(s)
- Chenguang Yu
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, Albuquerque, NM, 87131-0001, USA
| | - He Huang
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, Albuquerque, NM, 87131-0001, USA
| | - Xiangmin Li
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, Albuquerque, NM, 87131-0001, USA.,School of Pharmacy, East University of Science and Technology, 130 Mei-Long Road, Shanghai, 200237, P. R. China
| | - Yueteng Zhang
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, Albuquerque, NM, 87131-0001, USA
| | - Hao Li
- School of Pharmacy, East University of Science and Technology, 130 Mei-Long Road, Shanghai, 200237, P. R. China.
| | - Wei Wang
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, Albuquerque, NM, 87131-0001, USA. .,School of Pharmacy, East University of Science and Technology, 130 Mei-Long Road, Shanghai, 200237, P. R. China.
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41
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Kant R, Singh V, Agarwal A. An efficient and economical synthesis of 5-substituted 1H-tetrazoles via Pb(II) salt catalyzed [3+2] cycloaddition of nitriles and sodium azide. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.11.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Xie Z, Jia J, Liu X, Liu L. Copper(II) Triflate-Catalyzed Aerobic Oxidative CH Functionalization of Glycine Derivatives with Olefins and Organoboranes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501015] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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43
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Lyu L, Jin MY, He Q, Xie H, Bian Z, Wang J. Bi(OTf)3-catalyzed addition of isocyanides to 2H-chromene acetals: an efficient pathway for accessing 2-carboxamide-2H-chromenes. Org Biomol Chem 2016; 14:8088-91. [DOI: 10.1039/c6ob01355d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bismuth triflate (Bi(OTf)3) is identified as an efficient catalyst for the direct addition of isocyanides to 2H-chromene acetals. By this synthetic strategy, a polyfunctional molecular scaffold, 2-carboxamide-2H-chromenes could be prepared efficiently in one step with up to 95% yields.
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Affiliation(s)
- Longyun Lyu
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
- School of Chinese Medicine
| | - Ming Yu Jin
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Qijie He
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Han Xie
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Zhaoxiang Bian
- School of Chinese Medicine
- Hong Kong Baptist University
- Hong Kong
- China
| | - Jun Wang
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
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Kumar RK, Bi X. Catalytic σ-activation of carbon–carbon triple bonds: reactions of propargylic alcohols and alkynes. Chem Commun (Camb) 2016; 52:853-68. [DOI: 10.1039/c5cc08386a] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of organic transformations have been developed based on conceptually novel catalytic σ-activation of CC bonds of alkynes.
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Affiliation(s)
- Rapolu Kiran Kumar
- Department of Chemistry
- Northeast Normal University
- 130024 Changchun
- P. R. China
| | - Xihe Bi
- Department of Chemistry
- Northeast Normal University
- 130024 Changchun
- P. R. China
- State Key Laboratory of Elemento-Organic Chemistry
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45
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Sepay N, Mallik S, Guha C, Mallik AK. An efficient synthesis of 1,3-dimethyl-5-(2-phenyl-4H-chromen-4-ylidene) pyrimidine-2,4,6(1H,3H,5H)-triones and investigation of their interactions with β-lactoglobiulin. RSC Adv 2016. [DOI: 10.1039/c6ra13584f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
An efficient method for synthesis of 1,3-dimethyl-5-(2-phenyl-4H-chromen-4-ylidene)pyrimidine-2,4,6(1H,3H,5H)-triones has been developed.
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Affiliation(s)
- Nayim Sepay
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Sumitava Mallik
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Chayan Guha
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Asok K. Mallik
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
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46
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47
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Zhang FZ, Tian Y, Li GX, Qu J. Intramolecular etherification and polyene cyclization of π-activated alcohols promoted by hot water. J Org Chem 2015; 80:1107-15. [PMID: 25525716 DOI: 10.1021/jo502636d] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Hot water, acting as a mildly acidic catalyst, efficiently promoted intramolecular direct nucleophilic substitution reactions of unsaturated alcohols with heteroatom or carbon nucleophiles. In a mixed solvent of water and 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP), polyene cyclizations using allylic alcohols as initiators gave the desired cyclized products, and in neat HFIP, a tricyclization reaction gave a tetracyclic product in 51% chemical yield.
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48
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Abstract
The synthesis and catalytic activity of [(TMEDA)Ni(o-tolyl)Cl], an air-stable, crystalline solid, is described. This complex is an effective precatalyst in a variety of nickel-catalyzed transformations. The lability of TMEDA allows a wide variety of ligands to be used, including mono- and bidentate phosphines, diimines, and N-heterocyclic carbenes. Preliminary mechanistic studies are also reported, which suggest that [(TMEDA)Ni(o-tolyl)Cl] can activate by either a Ni-B or Ni-Ni transmetalation event, depending on the reaction conditions.
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Affiliation(s)
- Jason D. Shields
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Erin E. Gray
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Abigail G. Doyle
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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49
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Calmus L, Corbu A, Cossy J. 2H-Chromenes Generated by an Iron(III) Complex-Catalyzed Allylic Cyclization. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500058] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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50
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Affiliation(s)
- Nilanjana Majumdar
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
- Institute of Microbial Chemistry, Tokyo, 3-14-23 Kamiosaki,
Shinagawa-ku, Tokyo 141-0021, Japan
| | - Nanda D. Paul
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - Sutanuva Mandal
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - Bas de Bruin
- Homogeneous
and Supramolecular Catalysis Group, Van ’t Hoff Institute for
Molecular Science (HIMS), University of Amsterdam (UvA), Science
Park 904, 1098 XH Amsterdam, The Netherlands
| | - William D. Wulff
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
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