1
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Formánek B, Dupommier D, Volfová T, Rimpelová S, Škarková A, Herciková J, Rösel D, Brábek J, Perlíková P. Synthesis and migrastatic activity of cytochalasin analogues lacking a macrocyclic moiety. RSC Med Chem 2024; 15:322-343. [PMID: 38283219 PMCID: PMC10809383 DOI: 10.1039/d3md00535f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/24/2023] [Indexed: 01/30/2024] Open
Abstract
Cytochalasans are known as inhibitors of actin polymerization and for their cytotoxic and migrastatic activity. In this study, we synthesized a series of cytochalasin derivatives that lack a macrocyclic moiety, a structural element traditionally considered essential for their biological activity. We focused on substituting the macrocycle with simple aryl-containing sidechains, and we have also synthesized compounds with different substitution patterns on the cytochalasin core. The cytochalasin analogues were screened for their migrastatic and cytotoxic activity. Compound 24 which shares the substitution pattern with natural cytochalasins B and D exhibited not only significant in vitro migrastatic activity towards BLM cells but also demonstrated inhibition of actin polymerization, with no cytotoxic effect observed at 50 μM concentration. Our results demonstrate that even compounds lacking the macrocyclic moiety can exhibit biological activities, albeit less pronounced than those of natural cytochalasins. However, our findings emphasize the pivotal role of substituting the core structure in switching between migrastatic activity and cytotoxicity. These findings hold significant promise for further development of easily accessible cytochalasan analogues as novel migrastatic agents.
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Affiliation(s)
- Bedřich Formánek
- Department of Organic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Prague Technická 5 166 28 Prague Czech Republic
| | - Dorian Dupommier
- Department of Organic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Prague Technická 5 166 28 Prague Czech Republic
| | - Tereza Volfová
- Department of Cell Biology, BIOCEV, Faculty of Science, Charles University Průmyslová 595, 252 50 Vestec Prague West Czech Republic
| | - Silvie Rimpelová
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague Technická 5 166 28 Prague The Czech Republic
| | - Aneta Škarková
- Department of Cell Biology, BIOCEV, Faculty of Science, Charles University Průmyslová 595, 252 50 Vestec Prague West Czech Republic
| | - Jana Herciková
- Department of Organic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Prague Technická 5 166 28 Prague Czech Republic
| | - Daniel Rösel
- Department of Cell Biology, BIOCEV, Faculty of Science, Charles University Průmyslová 595, 252 50 Vestec Prague West Czech Republic
| | - Jan Brábek
- Department of Cell Biology, BIOCEV, Faculty of Science, Charles University Průmyslová 595, 252 50 Vestec Prague West Czech Republic
| | - Pavla Perlíková
- Department of Organic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Prague Technická 5 166 28 Prague Czech Republic
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences Flemingovo nám. 2 160 00 Prague Czech Republic
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2
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Luo J, Luo Z, Zhang B, Zhao Q, Liu L, Liu Y. B(C 6 F 5 ) 3 -Catalyzed [2+3]-Cyclative o,m-diC-H Functionalization of Phenols. Chemistry 2023; 29:e202301595. [PMID: 37759356 DOI: 10.1002/chem.202301595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 09/10/2023] [Accepted: 09/21/2023] [Indexed: 09/29/2023]
Abstract
Metal-free catalytic C-H functionalization is highly desired for the construction of C-C bonds. We herein report a highly chemoselective consecutive C-H [2+3]-cyclative functionalization for the simultaneous formation of two C-C bonds with construction of polycyclic phenols catalyzed by commercially available and low-cost B(C6 F5 )3 . This catalytic system tolerates a wide range of substrate scope, providing a series of 2,6,7,8-tetrahydroacenaphthylen-3-ol-type polycyclic compounds efficiently. Several derivatizations of the catalytic products have also been conducted to show the potential application of this method in synthesis of polycyclic compounds.
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Affiliation(s)
- Jingyan Luo
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Zhou Luo
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Biqi Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Qiuyu Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yuanyuan Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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3
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Shi J, Ye T, Dong J, Liu A, Xu T, Tai M, Zhang L, Wang C. H 2O as the Hydrogen Donor: Stereo-Selective Synthesis of E- and Z-Alkenes by Palladium-Catalyzed Semihydrogenation of Alkynes. ACS OMEGA 2023; 8:11492-11502. [PMID: 37008091 PMCID: PMC10061537 DOI: 10.1021/acsomega.3c00287] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/02/2023] [Indexed: 06/19/2023]
Abstract
It is very desirable to develop a facile controllable method for selective semihydrogenation of alkynes to alkenes with a cheap and safe hydrogen donor but remains a big challenge. H2O is one of the best choices of the transfer hydrogenation agent of the world, and the development of methods for synthesizing E- and Z-alkenes using H2O as the hydrogen source is worthwhile. In this article, a palladium-catalyzed synthesis of E- and Z-alkenes from alkynes using H2O as the hydrogenation agent was reported. The use of di-tert-butylphosphinous chloride (t-Bu2PCl) and triethanolamine/sodium acetate (TEOA/NaOAc) was essential for the stereo-selective semihydrogenation of alkynes. The general applicability of this procedure was highlighted by the synthesis of more than 48 alkenes, with good yields and high stereoselectivities.
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4
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Hui J, Wang F. Palladium-catalyzed transfer hydrogenation of terminal alkynes using ethanol as the hydrogen donor. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221145838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A ligand-promoted, palladium-catalyzed transfer hydrogenation of terminal alkynes using ethanol as the hydrogen donor is developed. The chemical selectivity control is achieved based on ligand regulation. The use of triethanolamine and tetrahydrofuran at 80 °C under N2 is found to be critical for the transfer hydrogenation of terminal alkynes. The general applicability of this procedure is highlighted by the synthesis of 27 terminal alkenes in moderate to good yields.
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Affiliation(s)
- Jie Hui
- Lianyungang Higher Vocational Technical College of Traditional Chinese Medicine, Lianyungang, P.R. China
| | - Feng Wang
- Kangda College of Nanjing Medical University, Jiangsu, P. R. of China
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5
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Babón JC, Esteruelas MA, López AM, Oñate E. Reactions of an Osmium-Hexahydride Complex with 2-Butyne and 3-Hexyne and Their Performance in the Migratory Hydroboration of Aliphatic Internal Alkynes. Organometallics 2022; 41:2513-2524. [PMID: 36864948 PMCID: PMC9969483 DOI: 10.1021/acs.organomet.2c00338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 11/28/2022]
Abstract
Reactions of the hexahydride OsH6(PiPr3)2 (1) with 2-butyne and 3-hexyne and the behavior of the resulting species toward pinacolborane (pinBH) have been investigated in the search for new hydroboration processes. Complex 1 reacts with 2-butyne to give 1-butene and the osmacyclopropene OsH2(η2-C2Me2)(PiPr3)2 (2). In toluene, at 80 °C, the coordinated hydrocarbon isomerizes into a η4-butenediyl form to afford OsH2(η4-CH2CHCHCH2)(PiPr3)2 (3). Isotopic labeling experiments indicate that the isomerization involves Me-to-COs hydrogen 1,2-shifts, which take place through the metal. The reaction of 1 with 3-hexyne gives 1-hexene and OsH2(η2-C2Et2)(PiPr3)2 (4). Similarly to 2, complex 4 evolves to η4-butenediyl derivatives OsH2(η4-CH2CHCHCHEt)(PiPr3)2 (5) and OsH2(η4-MeCHCHCHCHMe)(PiPr3)2 (6). In the presence of pinBH, complex 2 generates 2-pinacolboryl-1-butene and OsH{κ2-H,H-(H2Bpin)}(η2-HBpin)(PiPr3)2 (7). According to the formation of the borylated olefin, complex 2 is a catalyst precursor for the migratory hydroboration of 2-butyne and 3-hexyne to 2-pinacolboryl-1-butene and 4-pinacolboryl-1-hexene. During the hydroboration, complex 7 is the main osmium species. The hexahydride 1 also acts as a catalyst precursor, but it requires an induction period that causes the loss of 2 equiv of alkyne per equiv of osmium.
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6
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Li DA, He XH, Tang X, Wu Y, Zhao H, He G, Peng C, Han B, Zhan G. Organo/Silver Dual Catalytic (3 + 2)/Conia-Ene Type Cyclization: Asymmetric Synthesis of Indane-Fused Spirocyclopenteneoxindoles. Org Lett 2022; 24:6197-6201. [PMID: 35976152 DOI: 10.1021/acs.orglett.2c02472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Developing efficient strategies to synthesize spirocyclopenteneoxindoles is an attractive target due to their potential biological activity. This work described the thiourea/silver dual catalytic (3 + 2)/Conia-ene type reaction of 2-(2-oxoindolin-3-yl)malononitrile with ortho-ethynyl substituted nitrostyrene. The reaction features mild conditions and good atom- and step-economy. Three new C-C bonds were formed within one synthetic step, providing the indane-fused spirocyclopenteneoxindoles in good yields, with excellent chemo-, regio-, and stereoselectivity.
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Affiliation(s)
- Dong-Ai Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Xiang-Hong He
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Xue Tang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Yuling Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Hongli Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Gu He
- State Key Laboratory of Biotherapy and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
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7
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Luo J, Liang Y, Montag M, Diskin-Posner Y, Avram L, Milstein D. Controlled Selectivity through Reversible Inhibition of the Catalyst: Stereodivergent Semihydrogenation of Alkynes. J Am Chem Soc 2022; 144:13266-13275. [PMID: 35839274 PMCID: PMC9374179 DOI: 10.1021/jacs.2c04233] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Catalytic semihydrogenation of internal alkynes using
H2 is an attractive atom-economical route to various alkenes,
and its
stereocontrol has received widespread attention, both in homogeneous
and heterogeneous catalyses. Herein, a novel strategy is introduced,
whereby a poisoning catalytic thiol is employed as a reversible inhibitor
of a ruthenium catalyst, resulting in a controllable H2-based semihydrogenation of internal alkynes. Both (E)- and (Z)-alkenes were obtained efficiently and
highly selectively, under very mild conditions, using a single homogeneous
acridine-based ruthenium pincer catalyst. Mechanistic studies indicate
that the (Z)-alkene is the reaction intermediate
leading to the (E)-alkene and that the addition of
a catalytic amount of bidentate thiol impedes the Z/E isomerization step by forming stable ruthenium
thiol(ate) complexes, while still allowing the main hydrogenation
reaction to proceed. Thus, the absence or presence of catalytic thiol
controls the stereoselectivity of this alkyne semihydrogenation, affording
either the (E)-isomer as the final product or halting
the reaction at the (Z)-intermediate. The developed
system, which is also applied to the controllable isomerization of
a terminal alkene, demonstrates how metal catalysis with switchable
selectivity can be achieved by reversible inhibition of the catalyst
with a simple auxiliary additive.
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Affiliation(s)
- Jie Luo
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Yaoyu Liang
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Michael Montag
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Yael Diskin-Posner
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Liat Avram
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - David Milstein
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
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8
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Abstract
Cobalt-NHC complexes have emerged as an attractive class of 3d transition metal catalysts for a broad range of chemical processes, including cross-coupling, hydrogenation, hydrofunctionalization and cycloaddition reactions. Herein, we present a comprehensive review of catalytic methods utilizing cobalt-NHC complexes with a focus on catalyst structure, the role of the NHC ligand, properties of the catalytic system, mechanism and synthetic utility. The survey clearly suggests that the recent emergence of well-defined cobalt-NHC catalysts may have a tremendous utility in the design and application of catalytic reactions using more abundant 3d transition metals.
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Affiliation(s)
- Sourav Sekhar Bera
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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9
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Farrar-Tobar RA, Weber S, Csendes Z, Ammaturo A, Fleissner S, Hoffmann H, Veiros LF, Kirchner K. E-Selective Manganese-Catalyzed Semihydrogenation of Alkynes with H 2 Directly Employed or In Situ-Generated. ACS Catal 2022; 12:2253-2260. [PMID: 35211351 PMCID: PMC8859827 DOI: 10.1021/acscatal.1c06022] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/18/2022] [Indexed: 02/07/2023]
Abstract
Selective semihydrogenation of alkynes with the Mn(I) alkyl catalyst fac-[Mn(dippe)(CO)3(CH2CH2CH3)] (dippe = 1,2-bis(di-iso-propylphosphino)ethane) as a precatalyst is described. The required hydrogen gas is either directly employed or in situ-generated upon alcoholysis of KBH4 with methanol. A series of aryl-aryl, aryl-alkyl, alkyl-alkyl, and terminal alkynes was readily hydrogenated to yield E-alkenes in good to excellent isolated yields. The reaction proceeds at 60 °C for directly employed hydrogen or at 60-90 °C with in situ-generated hydrogen and catalyst loadings of 0.5-2 mol %. The implemented protocol tolerates a variety of electron-donating and electron-withdrawing functional groups, including halides, phenols, nitriles, unprotected amines, and heterocycles. The reaction can be upscaled to the gram scale. Mechanistic investigations, including deuterium-labeling studies and density functional theory (DFT) calculations, were undertaken to provide a reasonable reaction mechanism, showing that initially formed Z-isomer undergoes fast isomerization to afford the thermodynamically more stable E-isomer.
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Affiliation(s)
- Ronald A. Farrar-Tobar
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, Vienna A-1060, Austria
| | - Stefan Weber
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, Vienna A-1060, Austria
| | - Zita Csendes
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, Vienna A-1060, Austria
| | - Antonio Ammaturo
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, Vienna A-1060, Austria
| | - Sarah Fleissner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, Vienna A-1060, Austria
| | - Helmuth Hoffmann
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, Vienna A-1060, Austria
| | - Luis F. Veiros
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av Rovisco Pais, Lisboa 1049-001, Portugal
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, Vienna A-1060, Austria
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10
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Torres-Calis A, García JJ. Manganese-catalyzed transfer semihydrogenation of internal alkynes to E-alkenes with iPrOH as hydrogen source. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00246a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The Mn-catalyzed transfer semihydrogenation of internal alkynes to E-alkenes is reported herein, along with Mn-catalyzed hydration of α-keto alkynes. Mechanistic studies displayed an asymmetrical Mn-hydride species performing the catalytic turnover.
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Affiliation(s)
- Antonio Torres-Calis
- Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Juventino J. García
- Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
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11
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Chen S, Cai M, Huang J, Yao H, Lin A. Cobalt-Catalyzed Dearomatization of Indoles via Transfer Hydrogenation To Afford Polycyclic Indolines. Org Lett 2021; 23:2212-2216. [PMID: 33683891 DOI: 10.1021/acs.orglett.1c00354] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A cobalt-catalyzed dearomatization of indoles via transfer hydrogenation with HBpin and H2O has been developed. This reaction offered a straightforward platform to access hexahydropyrido[1,2-a]indoles in high regio- and chemoselectivity. A preliminary reaction mechanism was proposed on the basis of deuterium-labeling experiments, and a cobalt hydride species was involved in the reaction.
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Affiliation(s)
- Siwei Chen
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Min Cai
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Junru Huang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
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12
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Alawisi H, Arman HD, Tonzetich ZJ. Catalytic Hydrogenation of Alkenes and Alkynes by a Cobalt Pincer Complex: Evidence of Roles for Both Co(I) and Co(II). Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00053] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hussah Alawisi
- Department of Chemistry, University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
- Department of Chemistry, King Faisal University, Al Hofuf, Kingdom of Saudi Arabia
| | - Hadi D. Arman
- Department of Chemistry, University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
| | - Zachary J. Tonzetich
- Department of Chemistry, University of Texas at San Antonio (UTSA), San Antonio, Texas 78249, United States
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13
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Wang Y, Lin X, Zhang P, Shen M, Xu H, Xu D. Design and Synthesis of Pyridine and 1,3,5-Triazine PNP Pincer Ligands and Their Application in Cobalt Catalyzed Semihydrogenation of Terminal Alkynes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Fiorito D, Scaringi S, Mazet C. Transition metal-catalyzed alkene isomerization as an enabling technology in tandem, sequential and domino processes. Chem Soc Rev 2021; 50:1391-1406. [DOI: 10.1039/d0cs00449a] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
One-pot reactions based on catalytic isomerization of alkenes not only offer the inherent advantages of atom-, step- and redox-economy but also enable the preparation of value-added products that would be difficult to access by conventional methods.
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Affiliation(s)
- Daniele Fiorito
- Organic Chemistry Department
- University of Geneva
- Geneva 1211
- Switzerland
| | - Simone Scaringi
- Organic Chemistry Department
- University of Geneva
- Geneva 1211
- Switzerland
| | - Clément Mazet
- Organic Chemistry Department
- University of Geneva
- Geneva 1211
- Switzerland
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15
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Seifert F, Drikermann D, Steinmetzer J, Zi Y, Kupfer S, Vilotijevic I. Z-Selective phosphine promoted 1,4-reduction of ynoates and propynoic amides in the presence of water. Org Biomol Chem 2021; 19:6092-6097. [PMID: 34152338 DOI: 10.1039/d1ob00909e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phosphine-mediated reductions of substituted propynoic esters and amides in the presence of water yield the partially reduced α,β-unsaturated esters and amides with high Z-selectivity. The competitive in situ Z to E-isomerization of the product in some cases lowers the Z to E ratios of the isolated α,β-unsaturated carbonyl products. Reaction time and the amounts of phosphine and water in the reaction mixture are the key experimental factors which control the selectivity by preventing or reducing the rates of Z- to E-product isomerization. Close reaction monitoring enables isolation of the Z-alkenes with high selectivities. The computational results suggest that the reactions could be highly Z-selective owing to the stereoselective formation of the E-P-hydroxyphosphorane intermediate.
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Affiliation(s)
- Fabian Seifert
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
| | - Denis Drikermann
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
| | - Johannes Steinmetzer
- Institute for Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - You Zi
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
| | - Stephan Kupfer
- Institute for Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Ivan Vilotijevic
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
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16
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Danopoulos AA, Braunstein P, Saßmannshausen J, Pugh D, Wright JA. “Pincer” Pyridine–Dicarbene–Iridium and ‐Ruthenium Complexes and Derivatives Thereof. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Andreas A. Danopoulos
- Inorganic Chemistry Laboratory Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis Zografou 15771 Athens Greece
| | - Pierre Braunstein
- CNRS, Chimie UMR 7177 Laboratoire de Chimie de Coordination Université de Strasbourg 4 rue Blaise Pascal 67081 Strasbourg Cedex France
| | - Jörg Saßmannshausen
- Guy's Hospital Guy's and St Thomas' NHS Foundation Trust and King's College London 16th Floor Tower Wing SE1 9RT London UK
| | - David Pugh
- Department of Chemistry King's College London Britannia House, 7 Trinity Street SE1 1DB London UK
| | - Joseph A. Wright
- Energy Materials Laboratory School of Chemistry University of East Anglia Norwich Research Park NR4 7TJ Norwich UK
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