1
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Broniarz K, Hreczycho G. Access to Unsaturated Organogermanes via (De)Hydrosilylation Mediated by Cobalt Complexes. Org Lett 2023; 25:6528-6533. [PMID: 37646486 PMCID: PMC10496132 DOI: 10.1021/acs.orglett.3c02326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Indexed: 09/01/2023]
Abstract
The functionalization of alkynylgermanes using hydrosilanes was accomplished by employing cobalt catalysis. Depending on the reactants used, the reaction can proceed via dehydrogenative coupling or hydrosilylation. Importantly, the presented method is characterized by mild reaction conditions, allowing rapid access to a wide range of organogermanes.
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Affiliation(s)
- Konstancja Broniarz
- Faculty of Chemistry, Adam
Mickiewicz University, Uniwersytetu Poznanskiego St. 8, 61-614 Poznan, Poland
| | - Grzegorz Hreczycho
- Faculty of Chemistry, Adam
Mickiewicz University, Uniwersytetu Poznanskiego St. 8, 61-614 Poznan, Poland
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2
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Luo Y, Lv L, Li Z. Copper-Catalyzed Germyl-Azidation of Alkenes with Germanium Hydrides and Trimethylsilyl Azide. Org Lett 2022; 24:8052-8056. [DOI: 10.1021/acs.orglett.2c03302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yani Luo
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Leiyang Lv
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Zhiping Li
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, China
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3
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Abstract
The concurrent incorporation of a germyl fragment and another functional group (beyond the hydrogen atom) across the C═C double bond is a highly appealing yet challenging task. Herein we demonstrate the efficient germyl peroxidation of alkenes with germanium hydrides and tert-butyl hydroperoxide via a copper-catalyzed three-component radical relay strategy. This protocol exhibits excellent functional group tolerance and exquisite chemo- and regioselectivity under mild conditions and represents a rare example of constructing synthetically challenging metal-embedded organic peroxides.
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Affiliation(s)
- Yani Luo
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Boxia Xu
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Leiyang Lv
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Zhiping Li
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, China
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4
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Luo Y, Tian T, Nishihara Y, Lv L, Li Z. Iron-catalysed radical cyclization to synthesize germanium-substituted indolo[2,1- a]isoquinolin-6(5 H)-ones and indolin-2-ones. Chem Commun (Camb) 2021; 57:9276-9279. [PMID: 34519301 DOI: 10.1039/d1cc03907e] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A simple and efficient strategy for iron-catalysed cascade radical cyclization was developed, by which an array of germanium-substituted indolo[2,1-a]isoquinolin-6(5H)-ones and indolin-2-ones were obtained in one pot with germanium hydrides as radical precursors. A rapid intramolecular radical trapping mode enabled the selective arylgermylation of alkenes over the prevalent hydrogermylation reaction.
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Affiliation(s)
- Yani Luo
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
| | - Tian Tian
- Department of Chemistry, Renmin University of China, Beijing 100872, China. .,Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yasushi Nishihara
- Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Leiyang Lv
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
| | - Zhiping Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
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5
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Manhas FM, Raheem S, Kumar J, Thakur P, Rizvi MA. A photosensitized metal free approach to α‐ketoamides:sequential oxidative amidationdiketonization of terminal alkynes. ChemistrySelect 2021. [DOI: 10.1002/slct.202101511] [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)
- Farah Manzer Manhas
- Department of Chemistry Shoolini University Solan, Himachal Pradesh 173212 India
| | - Shabnam Raheem
- Department of Chemistry University of Kashmir Srinagar 190006, J&K India
| | - Jaswant Kumar
- Natural Product and Medicinal Chemistry Division CSIR-Indian Institute of Integrative Medicine Jammu 180001 India
| | - Pankaj Thakur
- Department of Environmental Sciences Central University of Himachal Pradesh Dharmshala 176215 India
| | - Masood Ahmad Rizvi
- Department of Chemistry University of Kashmir Srinagar 190006, J&K India
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6
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7
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Romain E, Vega‐Hernández K, Guégan F, Sanz García J, Fopp C, Chemla F, Ferreira F, Gerard H, Jackowski O, Halbert S, Oestreich M, Perez‐Luna A. Development of a Radical Silylzincation of (Het)Aryl‐Substituted Alkynes and Computational Insights into the Origin of the
trans
‐Stereoselectivity. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001566] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elise Romain
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Karen Vega‐Hernández
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Frédéric Guégan
- Sorbonne Université CNRS Laboratoire de Chimie Théorique, LCT F-75005 Paris France
| | - Juan Sanz García
- Sorbonne Université CNRS Laboratoire de Chimie Théorique, LCT F-75005 Paris France
| | - Carolin Fopp
- Technische Universität Berlin Institut für Chemie Straße des 17. Juni 115 D-10623 Berlin Germany
| | - Fabrice Chemla
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Franck Ferreira
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Hélène Gerard
- Sorbonne Université CNRS Laboratoire de Chimie Théorique, LCT F-75005 Paris France
| | - Olivier Jackowski
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Stéphanie Halbert
- Sorbonne Université CNRS Laboratoire de Chimie Théorique, LCT F-75005 Paris France
| | - Martin Oestreich
- Technische Universität Berlin Institut für Chemie Straße des 17. Juni 115 D-10623 Berlin Germany
| | - Alejandro Perez‐Luna
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
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8
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Debrauwer V, Turlik A, Rummler L, Prescimone A, Blanchard N, Houk KN, Bizet V. Ligand-Controlled Regiodivergent Palladium-Catalyzed Hydrogermylation of Ynamides. J Am Chem Soc 2020; 142:11153-11164. [DOI: 10.1021/jacs.0c03556] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Vincent Debrauwer
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
| | - Aneta Turlik
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Lénaic Rummler
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
| | - Alessandro Prescimone
- Chemistry Department, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Nicolas Blanchard
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Vincent Bizet
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
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9
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Sivakrishna B, Islam S, Santra MK, Pal S. Synthesis and cytotoxic evaluation of apioarabinofuranosyl pyrimidines. Drug Dev Res 2019; 81:274-282. [PMID: 31643118 DOI: 10.1002/ddr.21613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/30/2019] [Accepted: 09/21/2019] [Indexed: 12/13/2022]
Abstract
In view of the potent anticancer activity of the d-arabino-configured cytosine nucleoside (ara-C), apioarabinofuranosyl pyrimidine nucleosides were designed and synthesized from d-ribose as starting material. The synthetic strategy signifies that tosylation followed by in situ cyclization, one-pot controlled oxidative cleavage and acetylation by Pb(OAc)4 , stereoselective nucleobase condensation, inversion of hydroxyl group and uracil group converted to cytosine as the key steps. Synthesized apioarabinofuranosyl pyrimidine nucleosides were tested using breast, colon, and ovarian cancer cell lines. However, only compound 19a, 19b, and 22b have a moderate growth-suppressive effect against the luminal A breast cancer cell line MCF7.
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Affiliation(s)
- Balija Sivakrishna
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha, India
| | - Sehbanul Islam
- Cancer Biology Laboratory, National Centre for Cell Science, Pune, Maharashtra, India
| | - Manas K Santra
- Cancer Biology Laboratory, National Centre for Cell Science, Pune, Maharashtra, India
| | - Shantanu Pal
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha, India
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10
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Shanmugasundaram M, Senthilvelan A, Kore AR. C-5 Substituted Pyrimidine Nucleotides/Nucleosides: Recent Progress in Synthesis, Functionalization, and Applications. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190809124310] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The chemistry of C5 substituted pyrimidine nucleotide serves as a versatile molecular
biology probe for the incorporation of DNA/RNA that has been involved in various
molecular biology applications such as gene expression, chromosome, and mRNA
fluorescence in situ hybridization (FISH) experiment, mutation detection on arrays and
microarrays, in situ RT-PCR, and PCR. In addition to C5 substituted pyrimidine nucleotide,
C5 substituted pyrimidine nucleoside displays a broad spectrum of biological applications
such as antibacterial, antiviral and anticancer activities. This review focusses on
the recent development in the synthesis of aminoallyl pyrimidine nucleotide, aminopropargyl
pyrimidine nucleotide, fluorescent probes containing C5 substituted pyrimidine nucleotide,
2′-deoxycytidine nucleoside containing vinylsulfonamide and acrylamide modification,
C5 alkenyl, C5 alkynyl, and C5 aryl pyrimidine nucleosides through palladium-catalyzed reaction,
pyrimidine nucleoside containing triazole moiety through Click reaction, 5-isoxazol-3-yl-pyrimidine nucleoside,
C5 azide modified pyrimidine nucleoside, 2′-deoxycytidine nucleotide containing photocleavable moiety,
and uridine nucleoside containing germane and their biological applications are outlined.
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Affiliation(s)
- Muthian Shanmugasundaram
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, United States
| | - Annamalai Senthilvelan
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, United States
| | - Anilkumar R. Kore
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, United States
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11
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Chalotra N, Rizvi MA, Shah BA. Photoredox-Mediated Generation of gem-Difunctionalized Ketones: Synthesis of α,α-Aminothioketones. Org Lett 2019; 21:4793-4797. [PMID: 31184917 DOI: 10.1021/acs.orglett.9b01677] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Neha Chalotra
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | | | - Bhahwal Ali Shah
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
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12
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de la Vega-Hernández K, Romain E, Coffinet A, Bijouard K, Gontard G, Chemla F, Ferreira F, Jackowski O, Perez-Luna A. Radical Germylzincation of α-Heteroatom-Substituted Alkynes. J Am Chem Soc 2018; 140:17632-17642. [DOI: 10.1021/jacs.8b09851] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Elise Romain
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Anais Coffinet
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Kajetan Bijouard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Geoffrey Gontard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Fabrice Chemla
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Franck Ferreira
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Olivier Jackowski
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Alejandro Perez-Luna
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
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13
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Chalotra N, Ahmed A, Rizvi MA, Hussain Z, Ahmed QN, Shah BA. Photoredox Generated Vinyl Radicals: Synthesis of Bisindoles and β-Carbolines. J Org Chem 2018; 83:14443-14456. [DOI: 10.1021/acs.joc.8b02193] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Neha Chalotra
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Ajaz Ahmed
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | | | - Zakir Hussain
- Department of Chemistry, University of Kashmir, Srinagar 190006, India
| | - Qazi Naveed Ahmed
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
| | - Bhahwal Ali Shah
- AcSIR and Natural Product Microbes, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India
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14
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Hida N, Aboukilila MY, Burow DA, Paul R, Greenberg MM, Fazio M, Beasley S, Spitale RC, Cleary MD. EC-tagging allows cell type-specific RNA analysis. Nucleic Acids Res 2017. [PMID: 28641402 PMCID: PMC5587779 DOI: 10.1093/nar/gkx551] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Purification of cell type-specific RNAs remains a significant challenge. One solution involves biosynthetic tagging of target RNAs. RNA tagging via incorporation of 4-thiouracil (TU) in cells expressing transgenic uracil phosphoribosyltransferase (UPRT), a method known as TU-tagging, has been used in multiple systems but can have limited specificity due to endogenous pathways of TU incorporation. Here, we describe an alternative method that requires the activity of two enzymes: cytosine deaminase (CD) and UPRT. We found that the sequential activity of these enzymes converts 5-ethynylcytosine (EC) to 5-ethynyluridine monophosphate that is subsequently incorporated into nascent RNAs. The ethynyl group allows efficient detection and purification of tagged RNAs. We show that ‘EC-tagging’ occurs in tissue culture cells and Drosophila engineered to express CD and UPRT. Additional control can be achieved through a split-CD approach in which functional CD is reconstituted from independently expressed fragments. We demonstrate the sensitivity and specificity of EC-tagging by obtaining cell type-specific gene expression data from intact Drosophila larvae, including transcriptome measurements from a small population of central brain neurons. EC-tagging provides several advantages over existing techniques and should be broadly useful for investigating the role of differential RNA expression in cell identity, physiology and pathology.
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Affiliation(s)
- Naoki Hida
- Molecular and Cell Biology Unit, Quantitative and Systems Biology Graduate Program, University of California, Merced, CA 95343, USA
| | - Mohamed Y Aboukilila
- Molecular and Cell Biology Unit, Quantitative and Systems Biology Graduate Program, University of California, Merced, CA 95343, USA
| | - Dana A Burow
- Molecular and Cell Biology Unit, Quantitative and Systems Biology Graduate Program, University of California, Merced, CA 95343, USA
| | - Rakesh Paul
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Marc M Greenberg
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Michael Fazio
- Department of Pharmaceutical Sciences and Department of Chemistry, University of California, Irvine, CA 92697, USA
| | - Samantha Beasley
- Department of Pharmaceutical Sciences and Department of Chemistry, University of California, Irvine, CA 92697, USA
| | - Robert C Spitale
- Department of Pharmaceutical Sciences and Department of Chemistry, University of California, Irvine, CA 92697, USA
| | - Michael D Cleary
- Molecular and Cell Biology Unit, Quantitative and Systems Biology Graduate Program, University of California, Merced, CA 95343, USA
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15
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Wen Z, Suzol SH, Peng J, Liang Y, Snoeck R, Andrei G, Liekens S, Wnuk SF. Antiviral and Cytostatic Evaluation of 5-(1-Halo-2-sulfonylvinyl)- and 5-(2-Furyl)uracil Nucleosides. Arch Pharm (Weinheim) 2017; 350. [DOI: 10.1002/ardp.201700023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 02/23/2017] [Accepted: 02/27/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Zhiwei Wen
- Department of Chemistry and Biochemistry; Florida International University; Miami FL USA
| | - Sazzad H. Suzol
- Department of Chemistry and Biochemistry; Florida International University; Miami FL USA
| | - Jufang Peng
- Department of Chemistry and Biochemistry; Florida International University; Miami FL USA
| | - Yong Liang
- Department of Chemistry and Biochemistry; Florida International University; Miami FL USA
| | - Robert Snoeck
- Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Graciela Andrei
- Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Sandra Liekens
- Rega Institute for Medical Research; KU Leuven; Leuven Belgium
| | - Stanislaw F. Wnuk
- Department of Chemistry and Biochemistry; Florida International University; Miami FL USA
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16
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Novák M, Dostál L, Turek J, Alonso M, De Proft F, Růžička A, Jambor R. Spontaneous Double Hydrometallation Induced by N→M Coordination in Organometallic Hydrides of Group 14 Elements. Chemistry 2016; 22:5620-8. [PMID: 26934563 DOI: 10.1002/chem.201504947] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Indexed: 11/11/2022]
Abstract
Our attempts to synthesise N→M intramolecularly coordinated diorganometallic hydrides L2MH2 [M=Si (4), Ge (5), Sn (6)] containing the CH=N imine group (in which L is C,N-chelating ligand {2-[(2,6-iPr2C6H3)N=CH]C6 H4}(-)) yielded 1,1'-bis(2,6-diisopropylphenyl)-2,2'-spriobi[benzo[c][1,2]azasilole] (7), 1,1'-bis(2,6-diisopropylphenyl)-2,2'-spriobi[benzo[c][1,2]azagermole] (8) and C,N-chelated homoleptic stannylene L2Sn (10), respectively. Compounds 7 and 8 are an outcome of a spontaneous double hydrometallation of the two CH=N imine moieties induced by N→M intramolecular coordination (M=Si, Ge) in the absence of any catalyst. In contrast, the diorganotin hydride L2SnH2 (6) is redox-unstable and the reduction of the tin centre with the elimination of H2 provided the C,N-chelated homoleptic stannylene L2Sn (10). Compounds 7 and 8 were characterised by NMR spectroscopy and X-ray diffraction analysis. Because the proposed N→M intramolecularly coordinated diorganometallic hydrides L2MH2 [M=Si (4), Ge (5), Sn (6)] revealed two different types of reduction reactions, DFT calculations were performed to gain an insight into the structures and bonding of the non-isolable diorganometallic hydrides as well as the products of their subsequent reactions. Furthermore, the thermodynamic profiles of the different reaction pathways with respect to the central metal atom were also investigated.
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Affiliation(s)
- Miroslav Novák
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic
| | - Jan Turek
- Eenheid Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research Group, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium.
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research Group, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Member of the QCMM VUB-UGent Alliance Research Group, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic
| | - Roman Jambor
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 53210, Pardubice, Czech Republic.
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17
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Liang Y, Suzol SH, Wen Z, Artiles AG, Mathivathanan L, Raptis RG, Wnuk SF. Uracil Nucleosides with Reactive Group at C5 Position: 5-(1-Halo-2-sulfonylvinyl)uridine Analogues. Org Lett 2016; 18:1418-21. [PMID: 26933954 DOI: 10.1021/acs.orglett.6b00346] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The transition-metal-catalyzed or radical-mediated halosulfonylation of 5-ethynyluridine provided (E)-(1-halo-2-tosylvinyl)uridines. These (β-halo)vinyl sulfones undergo efficient stereoselective addition-elimination with amines or thiols to provide Z-β-aminovinyl or E-β-thiovinyl sulfones tethered to the C5 position of the uracil ring.
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Affiliation(s)
- Yong Liang
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Sazzad H Suzol
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Zhiwei Wen
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Alain G Artiles
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Logesh Mathivathanan
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Raphael G Raptis
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
| | - Stanislaw F Wnuk
- Department of Chemistry and Biochemistry, Florida International University , Miami, Florida 33199, United States
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18
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Tashkandi NY, Pavelka LC, Hanson MA, Baines KM. The addition of terminal alkynes to dimesitylfluorenylidenegermane. CAN J CHEM 2014. [DOI: 10.1139/cjc-2013-0532] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A variety of terminal alkynes were added to dimesitylfluorenylidenegermane, Mes2Ge=CR2 (where CR2 = fluorenylidene). The addition of phenylacetylene and 1-hexyne to Mes2Ge=CR2 gave a germacyclohexene via a cycloaddition where the germene acts as the 4π component and the alkyne as the 2π component. Through the use of a mechanistic probe, trans-(2-phenylcyclopropyl)-acetylene, the reaction was postulated to proceed through a concerted [2+4] cycloaddition. The addition of ethoxyacetylene to the germene produced both a [2+2] cycloadduct, a germacyclobutene, and a [2+4] cycloadduct, a germacyclohexene. The results of this study are compared to the results of the addition of alkynes to Mes2Ge=CHCH2-t-Bu.
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Affiliation(s)
- Nada Y. Tashkandi
- Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Laura C. Pavelka
- Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Margaret A. Hanson
- Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Kim M. Baines
- Department of Chemistry, University of Western Ontario, London, ON N6A 5B7, Canada
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19
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Lu Q, Zhang J, Zhao G, Qi Y, Wang H, Lei A. Dioxygen-Triggered Oxidative Radical Reaction: Direct Aerobic Difunctionalization of Terminal Alkynes toward β-Keto Sulfones. J Am Chem Soc 2013; 135:11481-4. [DOI: 10.1021/ja4052685] [Citation(s) in RCA: 399] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Qingquan Lu
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Jian Zhang
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Ganglu Zhao
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Yue Qi
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Huamin Wang
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
- College of
Pharmacy, Wuhan University, Wuhan 430072,
P. R. China
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