1
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Wan T, Capaldo L, Djossou J, Staffa A, de Zwart FJ, de Bruin B, Noël T. Rapid and scalable photocatalytic C(sp 2)-C(sp 3) Suzuki-Miyaura cross-coupling of aryl bromides with alkyl boranes. Nat Commun 2024; 15:4028. [PMID: 38740738 DOI: 10.1038/s41467-024-48212-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/24/2024] [Indexed: 05/16/2024] Open
Abstract
In recent years, there has been a growing demand for drug design approaches that incorporate a higher number of sp3-hybridized carbons, necessitating the development of innovative cross-coupling strategies to reliably introduce aliphatic fragments. Here, we present a powerful approach for the light-mediated B-alkyl Suzuki-Miyaura cross-coupling between alkyl boranes and aryl bromides. Alkyl boranes were easily generated via hydroboration from readily available alkenes, exhibiting excellent regioselectivity and enabling the selective transfer of a diverse range of primary alkyl fragments onto the arene ring under photocatalytic conditions. This methodology eliminates the need for expensive catalytic systems and sensitive organometallic compounds, operating efficiently at room temperature within just 30 min. We further demonstrate the translation of the present protocol to continuous-flow conditions, enhancing scalability, safety, and overall efficiency of the method. This versatile approach offers significant potential for accelerating drug discovery efforts by enabling the introduction of complex aliphatic fragments in a straightforward and reliable manner.
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Affiliation(s)
- Ting Wan
- Flow Chemistry Group, van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, 1098, XH, Amsterdam, The Netherlands
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Luca Capaldo
- Flow Chemistry Group, van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, 1098, XH, Amsterdam, The Netherlands
- SynCat Lab, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy
| | - Jonas Djossou
- Flow Chemistry Group, van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, 1098, XH, Amsterdam, The Netherlands
| | - Angela Staffa
- Flow Chemistry Group, van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, 1098, XH, Amsterdam, The Netherlands
- Merck Healthcare KGaA, Frankfurter Str. 250, 64293, Darmstadt, Germany
| | - Felix J de Zwart
- Homogeneous, Supramolecular and Bioinspired Catalysis Group (HomKat), van't Hoff Institute for Molecular Sciences (HIMS), Universiteit van Amsterdam (UvA), 1098, XH, Amsterdam, The Netherlands
| | - Bas de Bruin
- Homogeneous, Supramolecular and Bioinspired Catalysis Group (HomKat), van't Hoff Institute for Molecular Sciences (HIMS), Universiteit van Amsterdam (UvA), 1098, XH, Amsterdam, The Netherlands
| | - Timothy Noël
- Flow Chemistry Group, van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, 1098, XH, Amsterdam, The Netherlands.
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2
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Lin Q, Gong H, Wu F. Ni-Catalyzed Reductive Coupling of Heteroaryl Bromides with Tertiary Alkyl Halides. Org Lett 2022; 24:8996-9000. [DOI: 10.1021/acs.orglett.2c03598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Quan Lin
- School of Materials Science and Engineering, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Hegui Gong
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Fan Wu
- Institute of Drug Discovery Technology and Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
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3
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Wu BB, Xu J, Gao Q, Bian KJ, Liu GK, Wang XS. A General and Efficient Solution to Monofluoroalkylation: Divergent Synthesis of Aliphatic Monofluorides with Modular Synthetic Scaffolds. Angew Chem Int Ed Engl 2022; 61:e202208938. [PMID: 35791279 DOI: 10.1002/anie.202208938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Indexed: 12/15/2022]
Abstract
Monofluoroalkanes are important in many pharmaceuticals, agrochemicals and functional materials. However, the lack of easily available and transformable monofluoroalkylating reagents that facilitate a broad array of transformations has hampered the application of monofluoroalkylation. Herein, we report a general and efficient method of preparing diverse aliphatic monofluorides with monofluoroalkyl triflate as the synthetic scaffold. Using both nickel-catalyzed hydromonofluoroalkylation of unactivated alkenes and copper-catalyzed C-C bond formation, the general diversification of the monofluoroalkylating scaffold has been exhibited. The broad utility of this monofluoroalkylating reagent is shown by concise conversion into various conventional fluoroalkylating reagents and construction of monofluoro-alkoxy, -alkylamino motifs with commercially available heteroatom-based coupling partners.
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Affiliation(s)
- Bing-Bing Wu
- School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, 518060, China.,Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Jie Xu
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Qian Gao
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Kang-Jie Bian
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Guo-Kai Liu
- School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Xi-Sheng Wang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
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4
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Mears KL, Kutzleb MA, Stennett CR, Fettinger JC, Kaseman DC, Yu P, Vasko P, Power PP. Terpene dispersion energy donor ligands in borane complexes. Chem Commun (Camb) 2022; 58:9910-9913. [PMID: 35979664 DOI: 10.1039/d2cc04203g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural characterization of the complex [B(β-pinane)3] (1) reveals non-covalent H⋯H contacts that are consistent with the generation of London dispersion energies involving the β-pinane ligand frameworks. The homolytic fragmentations of 1, and camphane and sabinane analogues ([B(camphane)3] (2) and [B(sabinane)3] (3)) were studied computationally. Isodesmic exchange results showed that London dispersion interactions are highly dependent on the terpene's stereochemistry, with the β-pinane framework providing the greatest dispersion free energy (ΔG = -7.9 kcal mol-1) with Grimme's dispersion correction (D3BJ) employed. PMe3 was used to coordinate to [B(β-pinane)3], giving the complex [Me3P-B(β-pinane)3] (4), which displayed a dynamic coordination equilibrium in solution. The association process was found to be slightly endergonic at 302 K (ΔG = +0.29 kcal mol-1).
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Affiliation(s)
- Kristian L Mears
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Michelle A Kutzleb
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Cary R Stennett
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - James C Fettinger
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Derrick C Kaseman
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Ping Yu
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Petra Vasko
- Department of Chemistry, University of Helsinki, PO Box 55 (A. I. Virtasen aukio 1), 00014, Finland.
| | - Philip P Power
- Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
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5
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Wu BB, Xu J, Gao Q, Bian KJ, Liu GK, Wang XS. A General and Efficient Solution to Monofluoroalkylation: Divergent Synthesis of Aliphatic Monofluorides with Modular Synthetic Scaffolds. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bing-Bing Wu
- University of Science and Technology of China Chemistry CHINA
| | - Jie Xu
- University of Science and Technology of China Chemistry CHINA
| | - Qian Gao
- University of Science and Technology of China Chemistry CHINA
| | - Kang-Jie Bian
- University of Science and Technology of China Chemistry 96 Jinzhai Road 230026 Hefei CHINA
| | - Guo-Kai Liu
- Shenzhen University Pharmaceutical Sciences CHINA
| | - Xi-Sheng Wang
- University of Science and Technology of China Chemistry 96 Jinzhai Road 230026 Hefei CHINA
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6
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Tanaka D, Tsutsui Y, Konishi A, Nakaoka K, Nakajima H, Baba A, Chiba K, Yasuda M. Selective Activation of Aromatic Aldehydes Promoted by Dispersion Interactions: Steric and Electronic Factors of a π-Pocket within Cage-Shaped Borates for Molecular Recognition. Chemistry 2020; 26:15023-15034. [PMID: 32870540 DOI: 10.1002/chem.202003594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Indexed: 12/13/2022]
Abstract
Selective bond formations are one of the most important reactions in organic synthesis. In the Lewis acid mediated electrophile reactions of carbonyls, the selective formation of a carbonyl-acid complex plays a critical role in determining selectivity, which is based on the difference in the coordinative interaction between the carbonyl and Lewis acid center. Although this strategy has attained progress in selective bond formations, the discrimination between similarly sized aromatic and aliphatic carbonyls that have no functional anchors to strongly interact with the metal center still remains a challenging issue. Herein, this work focuses on molecular recognition driven by dispersion interactions within some aromatic moieties. A Lewis acid catalyst with a π-space cavity, which is referred to as a π-pocket, as the recognition site for aromatic carbonyls is designed. Cage-shaped borates 1B with various π-pockets demonstrated significant chemoselectivity for aromatic aldehydes 3 b-f over that of aliphatic 3 a in competitive hetero-Diels-Alder reactions. The effectiveness of our catalysts was also evidenced by intramolecular recognition of the aromatic carbonyl within a dicarbonyl substrate. Mechanistic and theoretical studies demonstrated that the selective activation of aromatic substrates was driven by the preorganization step with a larger dispersion interaction, rather than the rate-determining step of the C-C bond formation, and this was likely to contribute to the preferred activation of aromatic substrates over that of aliphatic ones.
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Affiliation(s)
- Daiki Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Yuya Tsutsui
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 5650871, Japan.,Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Koichi Nakaoka
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Hideto Nakajima
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Akio Baba
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Kouji Chiba
- Material Science Division, MOLSIS Inc., 1-28-38 Shinkawa, Chuo-ku, Tokyo, 1040033, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 5650871, Japan
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7
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Baumgartner Y, Baudoin O. One-Pot Alkene Hydroboration/Palladium-Catalyzed Migratory Suzuki–Miyaura Cross-Coupling. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02755] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yann Baumgartner
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Olivier Baudoin
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
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8
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Shaughnessy KH. Monodentate Trialkylphosphines: Privileged Ligands in Metal-catalyzed Crosscoupling Reactions. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200211114540] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phosphines are widely used ligands in transition metal-catalyzed reactions.
Arylphosphines, such as triphenylphosphine, were among the first phosphines to show
broad utility in catalysis. Beginning in the late 1990s, sterically demanding and electronrich
trialkylphosphines began to receive attention as supporting ligands. These ligands
were found to be particularly effective at promoting oxidative addition in cross-coupling
of aryl halides. With electron-rich, sterically demanding ligands, such as tri-tertbutylphosphine,
coupling of aryl bromides could be achieved at room temperature. More
importantly, the less reactive, but more broadly available, aryl chlorides became accessible
substrates. Tri-tert-butylphosphine has become a privileged ligand that has found application
in a wide range of late transition-metal catalyzed coupling reactions. This success
has led to the use of numerous monodentate trialkylphosphines in cross-coupling reactions. This review
will discuss the general properties and features of monodentate trialkylphosphines and their application in
cross-coupling reactions of C–X and C–H bonds.
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Affiliation(s)
- Kevin H. Shaughnessy
- Department of Chemistry & Biochemistry, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487-0336, United States
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9
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Recent Advances in Metal-Catalyzed Alkyl–Boron (C(sp3)–C(sp2)) Suzuki-Miyaura Cross-Couplings. Catalysts 2020. [DOI: 10.3390/catal10030296] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Boron chemistry has evolved to become one of the most diverse and applied fields in organic synthesis and catalysis. Various valuable reactions such as hydroborylations and Suzuki–Miyaura cross-couplings (SMCs) are now considered as indispensable methods in the synthetic toolbox of researchers in academia and industry. The development of novel sterically- and electronically-demanding C(sp3)–Boron reagents and their subsequent metal-catalyzed cross-couplings attracts strong attention and serves in turn to expedite the wheel of innovative applications of otherwise challenging organic adducts in different fields. This review describes the significant progress in the utilization of classical and novel C(sp3)–B reagents (9-BBN and 9-MeO-9-BBN, trifluoroboronates, alkylboranes, alkylboronic acids, MIDA, etc.) as coupling partners in challenging metal-catalyzed C(sp3)–C(sp2) cross-coupling reactions, such as B-alkyl SMCs after 2001.
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10
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Motokura K, Fukuda T, Manaka Y. Unexpected Formation of Triphenylborane from Phenylboronic Acid and Its Use as an Intermediate in Palladium‐Catalyzed Cross Coupling Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201902950] [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)
- Ken Motokura
- Department of Chemical Science and EngineeringSchool of Materials and Chemical TechnologyTokyo Institute of Technology Yokohama 226–8502 Japan
- PRESTOJapan Science and Technology Agency (JST) Saitama 332-0012 Japan
| | - Takuma Fukuda
- Department of Chemical Science and EngineeringSchool of Materials and Chemical TechnologyTokyo Institute of Technology Yokohama 226–8502 Japan
| | - Yuichi Manaka
- Department of Chemical Science and EngineeringSchool of Materials and Chemical TechnologyTokyo Institute of Technology Yokohama 226–8502 Japan
- Renewable Energy Research CenterNational Institute of Advanced Industrial Science and Technology Fukushima 963-0298 Japan
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11
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Zhang X, McNally A. Cobalt-Catalyzed Alkylation of Drug-Like Molecules and Pharmaceuticals Using Heterocyclic Phosphonium Salts. ACS Catal 2019; 9:4862-4866. [PMID: 31656687 DOI: 10.1021/acscatal.9b00851] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Alkylated pyridines are common in pharmaceuticals, and metal catalysis is frequently used to prepare this motif via Csp2-Csp3 coupling processes. We present a cobalt-catalyzed coupling reaction between pyridine phosphonium salts and alkylzinc reagents that can be applied to complex drug-like fragments and for late-stage functionalization of pharmaceuticals. The reaction generally proceeds at room temperature, and 4-position pyridine C-H bonds are the precursors in this strategy. Given the challenges in selectively installing (pseudo)halides in complex pyridines, this two-step process enables sets of molecules to be alkylated that would be challenging using traditional cross-coupling methods.
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Affiliation(s)
- Xuan Zhang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Andrew McNally
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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12
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Mirzaei A, Peng XS, Wong HNC. PtCl 2-Catalyzed Cycloisomerization of 1,8-Enynes: Synthesis of Tetrahydropyridine Species. Org Lett 2019; 21:3795-3798. [PMID: 31042044 DOI: 10.1021/acs.orglett.9b01250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The cycloisomerization of 1,8-enynes in the presence of platinum(II) chloride was developed to generate bicyclic nitrogen-containing heterocycle species via 6- endo-dig cyclization and [3,3]-sigmatropic rearrangement in acceptable to good yields. The related control experiments and preliminary mechanistic studies indicate a plausible mechanism involving 1,6- endo-dig aminoplatination of the alkyne and allylic [3,3]-sigmatropic rearrangement with total inversion of the allylic moiety.
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Affiliation(s)
- Anvar Mirzaei
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry , The Chinese University of Hong Kong , Shatin , New Territories , Hong Kong SAR, China
| | - Xiao-Shui Peng
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry , The Chinese University of Hong Kong , Shatin , New Territories , Hong Kong SAR, China.,Shenzhen Center of Novel Functional Molecules, Shenzhen Research Institute , The Chinese University of Hong Kong , No.10, Second Yuexing Road , Shenzhen 518507 , P.R. China
| | - Henry N C Wong
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry , The Chinese University of Hong Kong , Shatin , New Territories , Hong Kong SAR, China.,Shenzhen Center of Novel Functional Molecules, Shenzhen Research Institute , The Chinese University of Hong Kong , No.10, Second Yuexing Road , Shenzhen 518507 , P.R. China
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13
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Kurasawa K, Kwon E, Kuwahara S, Enomoto M. Bioinspired Total Synthesis of Delitschiapyrone A. Org Lett 2018; 20:4645-4648. [PMID: 30003791 DOI: 10.1021/acs.orglett.8b01932] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A bioinspired seven-step total synthesis of delitschiapyrone A was accomplished in 32% overall yield from commercially available 4-bromo-3,5-dimethoxybenzoic acid. The key step of the synthesis is an exclusively regioselective and diastereoselective reaction cascade consisting of the Diels-Alder reaction, α-ketol rearrangement, and cyclic hemiacetalization, achieved by simply stirring a heterogeneous mixture of two Diels-Alder substrates (putative biosynthetic intermediates) and water at 35 °C, directly furnishing the pentacyclic natural product in 75% yield.
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Affiliation(s)
- Kazuki Kurasawa
- Laboratory of Applied Bioorganic Chemistry, Graduate School of Agricultural Science , Tohoku University , 468-1 Aramaki Aza-Aoba , Aoba-ku , Sendai 980-8572 , Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Science , Tohoku University , 6-3 Aramaki Aza-Aoba , Aoba-ku , Sendai 980-8578 , Japan
| | - Shigefumi Kuwahara
- Laboratory of Applied Bioorganic Chemistry, Graduate School of Agricultural Science , Tohoku University , 468-1 Aramaki Aza-Aoba , Aoba-ku , Sendai 980-8572 , Japan
| | - Masaru Enomoto
- Laboratory of Applied Bioorganic Chemistry, Graduate School of Agricultural Science , Tohoku University , 468-1 Aramaki Aza-Aoba , Aoba-ku , Sendai 980-8572 , Japan
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14
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West RA, Cunningham T, Pennicott LE, Rao SPS, Ward SE. Toward More Drug Like Inhibitors of Trypanosome Alternative Oxidase. ACS Infect Dis 2018; 4:592-604. [PMID: 29353481 DOI: 10.1021/acsinfecdis.7b00218] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New tools are required to ensure the adequate control of the neglected tropical disease human African trypanosomiasis. Annual reports of infection have recently fallen to fewer than 5000 cases per year; however, current therapies are hard to administer and have safety concerns and, hence, are far from ideal. Trypanosome alternative oxidase is an exciting target for controlling the infection; it is unique to the parasite, and inhibition of this enzyme with the natural product ascofuranone has shown to clear in vivo infections. We report the synthesis and associated structure activity relationships of inhibitors based upon this natural product with correlation to T. b. brucei growth inhibition in an attempt to generate molecules that possess improved physicochemical properties and potential for use as new treatments for human African trypanosomiasis.
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Affiliation(s)
- Ryan A. West
- Sussex Drug Discovery Centre, University of Sussex, Brighton, BN1 9QJ, United Kingdom
| | - Thomas Cunningham
- Sussex Drug Discovery Centre, University of Sussex, Brighton, BN1 9QJ, United Kingdom
| | - Lewis E. Pennicott
- Sussex Drug Discovery Centre, University of Sussex, Brighton, BN1 9QJ, United Kingdom
| | - Srinivasa P. S. Rao
- Novartis Institutes for Tropical Diseases, 5300 Chiron Way, Emeryville, California 94608-2916, United States
| | - Simon E. Ward
- Sussex Drug Discovery Centre, University of Sussex, Brighton, BN1 9QJ, United Kingdom
- Medicines Discovery Institute, Cardiff University, Park Place, Cardiff, CF10 3AT, United Kingdom
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15
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Chen T, Guan JT, Zhang ZY, Chen JJ, Liu F, Liu X. Alkylimidazole-Based Phosphines as Efficient Ligands for Palladium-Catalyzed Suzuki Reactions. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.3071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ting Chen
- School of Chemical and Environmental Engineering; Wuhan Polytechnic University; Wuhan 430023 China
| | - Jin Tao Guan
- School of Chemical and Environmental Engineering; Wuhan Polytechnic University; Wuhan 430023 China
| | - Zhi Yong Zhang
- School of Chemical and Environmental Engineering; Wuhan Polytechnic University; Wuhan 430023 China
| | - Jing Jing Chen
- School of Chemical and Environmental Engineering; Wuhan Polytechnic University; Wuhan 430023 China
| | - Fengyan Liu
- School of Chemical and Environmental Engineering; Wuhan Polytechnic University; Wuhan 430023 China
| | - Xiaopei Liu
- School of Chemical and Environmental Engineering; Wuhan Polytechnic University; Wuhan 430023 China
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16
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Pd nanoparticles on reverse phase silica gel as recyclable catalyst for Suzuki-Miyaura cross coupling reaction and hydrogenation in water. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.07.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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17
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Khalili D, Banazadeh AR, Etemadi-Davan E. Palladium Stabilized by Amino-Vinyl Silica Functionalized Magnetic Carbon Nanotube: Application in Suzuki–Miyaura and Heck–Mizoroki Coupling Reactions. Catal Letters 2017. [DOI: 10.1007/s10562-017-2150-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Ishibashi JSA, Dargelos A, Darrigan C, Chrostowska A, Liu SY. BN Tetracene: Extending the Reach of BN/CC Isosterism in Acenes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00296] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jacob S. A. Ishibashi
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860, United States
| | - Alain Dargelos
- Institut des Sciences Analytiques et de Physico-Chimie pour l′Environnement et les Matériaux, UMR CNRS 5254, Université de Pau et des Pays de l′Adour, Avenue de l′Universite, 64 000 Pau, France
| | - Clovis Darrigan
- Institut des Sciences Analytiques et de Physico-Chimie pour l′Environnement et les Matériaux, UMR CNRS 5254, Université de Pau et des Pays de l′Adour, Avenue de l′Universite, 64 000 Pau, France
| | - Anna Chrostowska
- Institut des Sciences Analytiques et de Physico-Chimie pour l′Environnement et les Matériaux, UMR CNRS 5254, Université de Pau et des Pays de l′Adour, Avenue de l′Universite, 64 000 Pau, France
| | - Shih-Yuan Liu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860, United States
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19
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Bharti R, Bal Reddy C, Kumar S, Das P. Supported palladium nanoparticle‐catalysed Suzuki–Miyaura cross‐coupling approach for synthesis of aminoarylbenzosuberene analogues from natural precursor. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3749] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Richa Bharti
- Natural Product Chemistry and Process Development DivisionCSIR‐Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi India
| | - C. Bal Reddy
- Natural Product Chemistry and Process Development DivisionCSIR‐Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi India
| | - Sandeep Kumar
- Natural Product Chemistry and Process Development DivisionCSIR‐Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi India
| | - Pralay Das
- Natural Product Chemistry and Process Development DivisionCSIR‐Institute of Himalayan Bioresource Technology Palampur 176061 HP India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi India
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Cox PA, Leach AG, Campbell AD, Lloyd-Jones GC. Protodeboronation of Heteroaromatic, Vinyl, and Cyclopropyl Boronic Acids: pH–Rate Profiles, Autocatalysis, and Disproportionation. J Am Chem Soc 2016; 138:9145-57. [DOI: 10.1021/jacs.6b03283] [Citation(s) in RCA: 218] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Paul A. Cox
- School
of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 3FJ, United Kingdom
| | - Andrew G. Leach
- School
of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, United Kingdom
| | - Andrew D. Campbell
- Pharmaceutical
Technology and Development, AstraZeneca, Silk Road Business Park, Macclesfield SK10 2NA, United Kingdom
| | - Guy C. Lloyd-Jones
- School
of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 3FJ, United Kingdom
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21
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Mastalir M, Stöger B, Pittenauer E, Allmaier G, Kirchner K. Air-Stable Triazine-Based Ni(II) PNP Pincer Complexes As Catalysts for the Suzuki-Miyaura Cross-Coupling. Org Lett 2016; 18:3186-9. [PMID: 27281438 DOI: 10.1021/acs.orglett.6b01398] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Air-stable, thermally robust, and well-defined cationic Ni(II) PNP pincer complexes based on the 2,4-diaminotriazine scaffold are described. These complexes are active catalysts for the Suzuki-Miyaura cross-coupling of a wide range of aryl, heteroaryl (including benzoxazole, thiazole, pyridine, pyrimidine, thiazole), primary and secondary alkyl halides, and pseudohalides with different organoboronate reagents giving excellent to good isolated yields. Neutral deprotonated complexes seem to play a key role in the catalytic process.
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Affiliation(s)
- Matthias Mastalir
- Institute of Applied Synthetic Chemistry, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Berthold Stöger
- Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Ernst Pittenauer
- Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Günter Allmaier
- Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
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22
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Wang CA, Han YF, Li YW, Nie K, Cheng XL, Zhang JP. Bipyridyl palladium embedded porous organic polymer as highly efficient and reusable heterogeneous catalyst for Suzuki–Miyaura coupling reaction. RSC Adv 2016. [DOI: 10.1039/c6ra03331h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bipyridyl-palladium catalyst embedded porous organic polymers (Bpy-Pd-POP) was synthesized and used as highly effective and reusable heterogeneous catalyst for the Suzuki–Miyaura coupling reaction.
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Affiliation(s)
- Chang-An Wang
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Yin-Feng Han
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Yan-Wei Li
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Kun Nie
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Xue-Li Cheng
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Jian-Ping Zhang
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
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23
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Geier SJ, Vogels CM, Westcott SA. Current Developments in the Catalyzed Hydroboration Reaction. BORON REAGENTS IN SYNTHESIS 2016. [DOI: 10.1021/bk-2016-1236.ch006] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Stephen J. Geier
- Mount Allison University, Department of Chemistry and Biochemistry, Sackville, New Brunswick E4L 1G8, Canada
| | - Christopher M. Vogels
- Mount Allison University, Department of Chemistry and Biochemistry, Sackville, New Brunswick E4L 1G8, Canada
| | - Stephen A. Westcott
- Mount Allison University, Department of Chemistry and Biochemistry, Sackville, New Brunswick E4L 1G8, Canada
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