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Ma YQ, Tian SK. Catalyst-free visible light-promoted defunctionalization of alkyl isocyanides with a hydrosilane through C-N bond cleavage. Org Biomol Chem 2024; 22:2562-2565. [PMID: 38451158 DOI: 10.1039/d4ob00173g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
A radical initiator-free defunctionalization reaction of alkyl isocyanides with a hydrosilane has been established through C-N bond cleavage under catalyst-free visible light irradiation. Various alkyl isocyanides participated in the defunctionalization with tris(trimethylsilyl)silane under blue light irradiation at room temperature, delivering the reduced products in good yields with high chemoselectivity.
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Affiliation(s)
- Yu-Qing Ma
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Shi-Kai Tian
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Precision and Intelligent Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
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Morsy RMI, Samala G, Jalan A, Kopach ME, Venneti NM, Stockdill JL. Metal-free reductive desulfurization of C-sp 3-substituted thiols using phosphite catalysis. Chem Sci 2023; 14:9016-9023. [PMID: 37655042 PMCID: PMC10466286 DOI: 10.1039/d3sc00045a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 07/03/2023] [Indexed: 09/02/2023] Open
Abstract
Phosphines and phosphites are critical tools for non-metal desulfurative methodologies due to the strength of the P[double bond, length as m-dash]S bond. An overarching premise in these methods has been that stoichiometric (or excess) P(iii) reagent is required for reactivity. Despite decades of research, a desulfurative process that is catalytic in phosphine/phosphite has not been reported. Here, we report the successful merging of two thermal radical processes: the desulfurization of unactivated and activated alkyl thiols and the reduction of P(v) = S to P(iii) by reaction with a silyl radical species. We employ catalytic trimethyl phosphite, catalytic azo-bis(cyclohexyl)nitrile, and two equivalents of tris(trimethylsilyl)silane as the stoichiometric reductant and sulfur atom scavenger. This method is tolerant of common organic functional groups and affords products in good to excellent yields.
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Affiliation(s)
- Rana M I Morsy
- Department of Chemistry, Wayne State University Detroit MI 48202 USA
| | - Ganesh Samala
- Department of Chemistry, Wayne State University Detroit MI 48202 USA
| | - Ankur Jalan
- Eli Lilly and Company Indianapolis IN 46285 USA
| | | | - Naresh M Venneti
- Department of Chemistry, Wayne State University Detroit MI 48202 USA
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Steindl J, Koch T, Moszner N, Gorsche C. Silane-Acrylate Chemistry for Regulating Network Formation in Radical Photopolymerization. Macromolecules 2017; 50:7448-7457. [PMID: 29033466 PMCID: PMC5637009 DOI: 10.1021/acs.macromol.7b01399] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/23/2017] [Indexed: 12/27/2022]
Abstract
Photoinitiated silane-ene chemistry has the potential to pave the way toward spatially resolved organosilicon compounds, which might find application in biomedicine, microelectronics, and other advanced fields. Moreover, this approach could serve as a viable alternative to the popular photoinitiated thiol-ene chemistry, which gives access to defined and functional photopolymer networks. A difunctional bis(trimethylsilyl)silane with abstractable hydrogens (DSiH) was successfully synthesized in a simple one-pot procedure. The radical reactivity of DSiH with various homopolymerizable monomers (i.e., (meth)acrylate, vinyl ester, acrylamide) was assessed via 1H NMR spectroscopic studies. DSiH shows good reactivity with acrylates and vinyl esters. The most promising silane-acrylate system was further investigated in cross-linking formulations toward its reactivity (e.g., heat of polymerization, curing time, occurrence of gelation, double-bond conversion) and compared to state-of-the-art thiol-acrylate resins. The storage stability of prepared resin formulations is greatly improved for silane-acrylate systems vs thiol-ene resins. Double-bond conversion at the gel point (DBCgel) and overall DBC were increased, and polymerization-induced shrinkage stress has been significantly reduced with the introduction of silane-acrylate chemistry. Resulting photopolymer networks exhibit a homogeneous network architecture (indicated by a narrow glass transition) that can be tuned by varying silane concentration, and this confirms the postulated regulation of radical network formation. Similar to thiol-acrylate networks, this leads to more flexible photopolymer networks with increased elongation at break and improved impact resistance. Additionally, swelling tests indicate a high gel fraction for silane-acrylate photopolymers.
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Affiliation(s)
- Johannes Steindl
- Institute
of Applied Synthetic Chemistry, Technische
Universität Wien, Getreidemarkt 9/163 MC, 1060 Vienna, Austria
- Christian-Doppler-Laboratory
for Photopolymers in Digital and Restorative Dentistry, Getreidemarkt 9, 1060 Vienna, Austria
| | - Thomas Koch
- Institute
of Materials Science and Technology, Technische
Universität Wien, Getreidemarkt 9/308, 1060 Vienna, Austria
| | - Norbert Moszner
- Christian-Doppler-Laboratory
for Photopolymers in Digital and Restorative Dentistry, Getreidemarkt 9, 1060 Vienna, Austria
- Ivoclar Vivadent
AG, 9494 Schaan, Liechtenstein
| | - Christian Gorsche
- Institute
of Applied Synthetic Chemistry, Technische
Universität Wien, Getreidemarkt 9/163 MC, 1060 Vienna, Austria
- Christian-Doppler-Laboratory
for Photopolymers in Digital and Restorative Dentistry, Getreidemarkt 9, 1060 Vienna, Austria
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Steindl J, Svirkova A, Marchetti-Deschmann M, Moszner N, Gorsche C. Light-Triggered Radical Silane-Ene Chemistry Using a Monosubstituted Bis(trimethylsilyl)silane. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201600563] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Johannes Steindl
- Institute of Applied Synthetic Chemistry and Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry; Technische Universität Wien; Getreidemarkt 9/163 MC 1060 Vienna Austria
| | - Anastasiya Svirkova
- Institute of Chemical Technology and Analytics; Technische Universität Wien; Getreidemarkt 9/164 1060 Vienna Austria
| | - Martina Marchetti-Deschmann
- Institute of Chemical Technology and Analytics; Technische Universität Wien; Getreidemarkt 9/164 1060 Vienna Austria
| | - Norbert Moszner
- Ivoclar Vivadent AG; Bendererstrasse 2 9494 Schaan Liechtenstein
| | - Christian Gorsche
- Institute of Applied Synthetic Chemistry and Christian-Doppler-Laboratory for Photopolymers in Digital and Restorative Dentistry; Technische Universität Wien; Getreidemarkt 9/163 MC 1060 Vienna Austria
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Zhao Y, Li Z, Sharma UK, Sharma N, Song G, Van der Eycken EV. Copper-catalyzed alkylarylation of activated alkenes using isocyanides as the alkyl source: an efficient radical access to 3,3-dialkylated oxindoles. Chem Commun (Camb) 2016; 52:6395-8. [DOI: 10.1039/c6cc02024k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel copper-catalyzed oxidative cyclization of N-arylacrylamides for the synthesis of 3,3-dialkylated oxindoles is described using isocyanides as alkyl radical precursors.
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Affiliation(s)
- Yaping Zhao
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Nandini Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
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Piotrowski DW, Rolph M, Wei L. Substituted azabicyclo[2.2.1]heptanes via nitrenium ion rearrangement. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.12.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Sheberla D, Tumanskii B, Bravo-Zhivotovskii D, Molev G, Molev V, Lee VY, Takanashi K, Sekiguchi A, Apeloig Y. Electronic Structure of Bis(silyl)carbon-, Bis(silyl)silicon-, and Bis(silyl)germanium-Centered Radicals (R3Si)2XE• (E = C, Si, Ge; X = H, Re(CO)5, F): EPR and DFT Studies. Organometallics 2010. [DOI: 10.1021/om100812b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Dennis Sheberla
- Schulich Department of Chemistry
and the Lise Meitner-Minerva Center for Computational Quantum Chemistry,
Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Boris Tumanskii
- Schulich Department of Chemistry
and the Lise Meitner-Minerva Center for Computational Quantum Chemistry,
Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Dmitry Bravo-Zhivotovskii
- Schulich Department of Chemistry
and the Lise Meitner-Minerva Center for Computational Quantum Chemistry,
Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Gregory Molev
- Schulich Department of Chemistry
and the Lise Meitner-Minerva Center for Computational Quantum Chemistry,
Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Victoria Molev
- Schulich Department of Chemistry
and the Lise Meitner-Minerva Center for Computational Quantum Chemistry,
Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Vladimir Ya. Lee
- Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Kazunori Takanashi
- Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Akira Sekiguchi
- Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Yitzhak Apeloig
- Schulich Department of Chemistry
and the Lise Meitner-Minerva Center for Computational Quantum Chemistry,
Technion-Israel Institute of Technology, Haifa 32000, Israel
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9
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Lalevée J, Blanchard N, Graff B, Allonas X, Fouassier JP. Tris(trimethylsilyl)silyl versus tris(trimethylsilyl)germyl: Radical reactivity and oxidation ability. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.08.039] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Dolbier WR. Fluorinated free radicals. ACTA ACUST UNITED AC 2008. [DOI: 10.1007/bfb0119266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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11
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Lalevée J, Allonas X, Fouassier J. Halogen abstraction reaction between aminoalkyl radicals and alkyl halides: Unusual high rate constants. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.02.052] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Chatgilialoglu C, Timokhin VI. Silyl Radicals in Chemical Synthesis. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2008. [DOI: 10.1016/s0065-3055(08)00002-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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13
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Borsato G, Linden A, Lucchi OD, Lucchini V, Wolstenholme D, Zambon A. Chiral Polycyclic Ketones via Desymmetrization of Dihaloolefins. J Org Chem 2007; 72:4272-5. [PMID: 17474779 DOI: 10.1021/jo070222g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
3-Chloronorbornenone (R)-1a (98% ee) was obtained from trichloronorbornene 5 in two steps by the in situ generation of dichloronorbornadiene 2a with t-BuOK and desymmetrization with (-)-ephedrine, followed by hydrolysis with PPTS. The generality of this desymmetrization with (-)-ephedrine was tested with dibromonorbornadiene 2c and other substituted dichloronorbornadienes.
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Affiliation(s)
- Giuseppe Borsato
- Dipartimento di Scienze Ambientali and Dipartimento di Chimica, Università Ca' Foscari di Venezia, Dorsoduro 2137, I-30123 Venezia, Italy.
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14
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Chatgilialoglu C. The Tris(trimethylsilyl)silane/Thiol Reducing System: A Tool for Measuring Rate Constants for Reactions of Carbon-Centered Radicals with Thiols. Helv Chim Acta 2006. [DOI: 10.1002/hlca.200690221] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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16
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Jana S, Guin C, Roy SC. Titanocene(III) mediated radical cyclization of α-bromo carbonyl compounds: synthesis of tri-substituted tetrahydrofurans. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2004.12.079] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Fujita K, Yorimitsu H, Oshima K. Development of Radical Reactions with Zirconocene Complexes as Electron Transfer Reagents. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2004. [DOI: 10.1246/bcsj.77.1727] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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18
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Takami K, Mikami S, Yorimitsu H, Shinokubo H, Oshima K. Triethylborane-induced radical reactions with gallium- and indium hydrides. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01016-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Alonso F, Beletskaya IP, Yus M. Metal-mediated reductive hydrodehalogenation of organic halides. Chem Rev 2002; 102:4009-91. [PMID: 12428984 DOI: 10.1021/cr0102967] [Citation(s) in RCA: 709] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Francisco Alonso
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apdo 99, E-03080 Alicante, Spain
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20
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Zahouily M. Étude de la réactivité des radicaux α-ester : influence des centres stéréogènes en position α’ et β’. CR CHIM 2002. [DOI: 10.1016/s1631-0748(02)01424-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Hashimoto H, Sekiguchi Y, Iwamoto T, Kabuto C, Kira M. Synthesis and X-ray Structure of a Platinumη2-Disilene Complex. Organometallics 2002. [DOI: 10.1021/om010914+] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Nishiyama K, Oba M, Takagi H, Saito T, Imai Y, Motoyama I, Ikuta S, Hiratsuka H. Radical isomerization of 9,10-dihydro-9,10-disilaanthracene derivatives: stabilization factor of silyl radicals. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(00)00942-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Graham AE, Thomas AV, Yang R. Efficient large-scale radical deoxygenation in alcoholic solvents using sodium hypophosphite and a phase-transfer agent: application to erythromycins. J Org Chem 2000; 65:2583-5. [PMID: 10789478 DOI: 10.1021/jo991645o] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A E Graham
- Process Development, Chemical and Agricultural Products Division, Abbott Laboratories, North Chicago, Illinois 60064-4000, USA
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25
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Chatgilialoglu C, Newcomb M. Hydrogen Donor Abilities of the Group 14 Hydrides. ADVANCES IN ORGANOMETALLIC CHEMISTRY 1999. [DOI: 10.1016/s0065-3055(08)60620-6] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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26
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Reversibility in free-radical reactions of aryltellurides with tributylstannyl, tributylgermyl and tris(trimethylsilyl)silyl radicals. J Organomet Chem 1998. [DOI: 10.1016/s0022-328x(97)00491-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Brook MA, Gottardo C, Balduzzi S, Mohamed M. The sisyl (tris(trimethylsilyl)silyl) group: A fluoride resistant, photolabile alcohol protecting group. Tetrahedron Lett 1997. [DOI: 10.1016/s0040-4039(97)01673-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Guerra M. Theoretical Evidence from UQCISD Calculations against the Linear π-Configuration of α-Silylimidoyl Radicals As Determined by ESR Spectroscopy. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp961931t] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maurizio Guerra
- I.Co.C.E.A. Consiglio Nazionale delle Ricerche, Via Gobetti 101, 40129 Bologna, Italy
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30
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Guerra M. MO study of the effect of α-substituents on the13C hfs constants of acyl radicals: an electronic rather than structural effect. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/p29960000779] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Barton DH, Chern CY, Jaszberenyi JC. The invention of radical reactions. Part XXXIV. Homologation of carboxylic acids to α-keto carboxylic acids by Barton-ester based radical chain chemistry. Tetrahedron 1995. [DOI: 10.1016/0040-4020(94)01054-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Metal-silicon bonding energetics in organo-Group 4 and organo—f-element complexes. Implications for bonding and reactivity. Inorganica Chim Acta 1995. [DOI: 10.1016/0020-1693(94)04265-w] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Barton DH, Jang DO, Jaszberenyi JC. The invention of radical reactions. Part XXXI. Diphenylsilane: a reagent for deoxygenation of alcohols via their thiocarbonyl derivatives, deamination via isonitriles, and dehalogenation of bromo- and iodo- compounds by radical chain chemistry. Tetrahedron 1993. [DOI: 10.1016/s0040-4020(01)87198-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Chatgilialoglu C, Ferreri C. Progress of the Barton-McComble Methodology: From tin hydrides to Silanes. RESEARCH ON CHEMICAL INTERMEDIATES 1993. [DOI: 10.1163/156856793x00361] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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Barton DH, Doo OJ, Jaszberenyi JC. Tris(trimethylsilyl)silane and diphenylsilane in the radical chain dideoxygenation of 1,6-anhydro-D-glucose: A comparative study. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)61003-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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