151
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Denmark SE, Ambrosi A. Why You Really Should Consider Using Palladium-Catalyzed Cross-Coupling of Silanols and Silanolates. Org Process Res Dev 2015; 19:982-994. [PMID: 26478695 PMCID: PMC4608042 DOI: 10.1021/acs.oprd.5b00201] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The transition metal-catalyzed cross-coupling of organometallic nucleophiles derived from tin, boron, and zinc with organic electrophiles enjoys a preeminent status among modern synthetic methods for the formation of carbon-carbon bonds. In recent years, organosilanes have emerged as viable alternatives to the conventional reagents, with the added benefits of low cost, low toxicity and high chemical stability. However, silicon-based cross-coupling reactions often require heating in the presence of a fluoride source, which has significantly hampered their widespread acceptance. To address the "fluoride problem", a new paradigm for palladium-catalyzed, silicon-based cross-coupling reactions has been developed that employs a heretofore underutilized class of silicon reagents, the organosilanols. The use of organosilanols, either in the presence of Brønsted bases or as their silanolate salts, represents an operationally simple and mild alternative to the fluoride-based activation method. Organosilanols are readily available by many well-established methods for introducing carbon-silicon bonds onto alkenes, alkynes, arenes and heteroarenes. Moreover, several different protocols for the generation of alkali metal salts of, vinyl-, alkenyl-, alkynyl-, aryl-, and heteroarylsilanolates have been developed and the advantages of each of these methods have been demonstrated for a number of different coupling classes. This review will describe the development and implementation of cross-coupling reactions of organosilanols and their conjugate bases, silanolates, with a wide variety of substrate classes. In addition, application of these transformations in the total synthesis of complex natural products will also be highlighted. Finally, the unique advantages of organosilicon coupling strategies vis a vis organoboron reagents are discussed.
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Affiliation(s)
- Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, IL 61801
| | - Andrea Ambrosi
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, IL 61801
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152
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Kim DW, Joung S, Kim JG, Chang S. Metal‐Free Hydrosilylation Polymerization by Borane Catalyst. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507863] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dong Wook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141 (Korea)
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141 (Korea)
| | - Seewon Joung
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141 (Korea)
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141 (Korea)
| | - Jeung Gon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141 (Korea)
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141 (Korea)
- Current address: Department of Chemistry, Chonbuk National University, Jeonju, 54896 (Korea)
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141 (Korea)
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141 (Korea)
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153
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Kim DW, Joung S, Kim JG, Chang S. Metal‐Free Hydrosilylation Polymerization by Borane Catalyst. Angew Chem Int Ed Engl 2015; 54:14805-9. [DOI: 10.1002/anie.201507863] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Dong Wook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141 (Korea)
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141 (Korea)
| | - Seewon Joung
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141 (Korea)
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141 (Korea)
| | - Jeung Gon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141 (Korea)
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141 (Korea)
- Current address: Department of Chemistry, Chonbuk National University, Jeonju, 54896 (Korea)
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141 (Korea)
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141 (Korea)
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154
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Leutzsch M, Wolf LM, Gupta P, Fuchs M, Thiel W, Farès C, Fürstner A. Formation of Ruthenium Carbenes by gem-Hydrogen Transfer to Internal Alkynes: Implications for Alkyne trans-Hydrogenation. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 127:12608-12613. [PMID: 27478268 PMCID: PMC4955229 DOI: 10.1002/ange.201506075] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Indexed: 11/22/2022]
Abstract
Insights into the mechanism of the unusual trans-hydrogenation of internal alkynes catalyzed by {Cp*Ru} complexes were gained by para-hydrogen (p-H2) induced polarization (PHIP) transfer NMR spectroscopy. It was found that the productive trans-reduction competes with a pathway in which both H atoms of H2 are delivered to a single alkyne C atom of the substrate while the second alkyne C atom is converted into a metal carbene. This "geminal hydrogenation" mode seems unprecedented; it was independently confirmed by the isolation and structural characterization of a ruthenium carbene complex stabilized by secondary inter-ligand interactions. A detailed DFT study shows that the trans alkene and the carbene complex originate from a common metallacyclopropene intermediate. Furthermore, the computational analysis and the PHIP NMR data concur in that the metal carbene is the major gateway to olefin isomerization and over-reduction, which frequently interfere with regular alkyne trans-hydrogenation.
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Affiliation(s)
- Markus Leutzsch
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Larry M. Wolf
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Puneet Gupta
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Michael Fuchs
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Walter Thiel
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Christophe Farès
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Alois Fürstner
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
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155
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Leutzsch M, Wolf LM, Gupta P, Fuchs M, Thiel W, Farès C, Fürstner A. Formation of ruthenium carbenes by gem-hydrogen transfer to internal alkynes: implications for alkyne trans-hydrogenation. Angew Chem Int Ed Engl 2015; 54:12431-6. [PMID: 26332643 PMCID: PMC4643192 DOI: 10.1002/anie.201506075] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Indexed: 11/29/2022]
Abstract
Insights into the mechanism of the unusual trans-hydrogenation of internal alkynes catalyzed by {Cp*Ru} complexes were gained by para-hydrogen (p-H2) induced polarization (PHIP) transfer NMR spectroscopy. It was found that the productive trans-reduction competes with a pathway in which both H atoms of H2 are delivered to a single alkyne C atom of the substrate while the second alkyne C atom is converted into a metal carbene. This “geminal hydrogenation” mode seems unprecedented; it was independently confirmed by the isolation and structural characterization of a ruthenium carbene complex stabilized by secondary inter-ligand interactions. A detailed DFT study shows that the trans alkene and the carbene complex originate from a common metallacyclopropene intermediate. Furthermore, the computational analysis and the PHIP NMR data concur in that the metal carbene is the major gateway to olefin isomerization and over-reduction, which frequently interfere with regular alkyne trans-hydrogenation.
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Affiliation(s)
- Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Larry M Wolf
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Puneet Gupta
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Michael Fuchs
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Christophe Farès
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany).
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156
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Wilson RJ, Kaminsky L, Ahmed I, Clark DA. Ruthenium Hydride Catalyzed Silylvinylation of Internal Alkynes Using Ethylene as an Additive. J Org Chem 2015; 80:8290-9. [PMID: 26241076 DOI: 10.1021/acs.joc.5b01374] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient synthetic strategy for the regiospecific silylvinylation of internal alkynes is described. This transformation is catalyzed by RuHCl(CO)(SIMes)PPh3 and provides a net 5-exo-dig trans-silylvinylation of internal alkynes. Ethylene was used to decrease reaction times and displayed altered selectivity at increased pressure. Furthermore, alkyl-substituted alkynes were acceptable substrates at 80 psi of ethylene.
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Affiliation(s)
- Robert J Wilson
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Lauren Kaminsky
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Ijaz Ahmed
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Daniel A Clark
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
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157
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Trost BM, Hung CI(J, Koester DC, Miller Y. Development of Non-C2-symmetric ProPhenol Ligands. The Asymmetric Vinylation of N-Boc Imines. Org Lett 2015. [DOI: 10.1021/acs.orglett.5b01755] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
| | - Chao-I (Joey) Hung
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
| | - Dennis C. Koester
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
| | - Yan Miller
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, United States
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158
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Kaminsky L, Wilson RJ, Clark DA. Stereo- and Regioselective Formation of Silyl-Dienyl Boronates. Org Lett 2015; 17:3126-9. [PMID: 26037296 DOI: 10.1021/acs.orglett.5b01434] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The intramolecular trans-silylruthenation of internal alkynes and subsequent insertion of vinyl boronates is described. This approach provides complete regiocontrol through a stereoselective trans-5-exo-dig cyclization which affords a tetrasubstituted olefin as a vinylsilane and a highly functionalized Z,E diene motif.
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Affiliation(s)
- Lauren Kaminsky
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Robert J Wilson
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Daniel A Clark
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
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159
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Miller ZD, Dorel R, Montgomery J. Regiodivergent and Stereoselective Hydrosilylation of 1,3-Disubstituted Allenes. Angew Chem Int Ed Engl 2015; 54:9088-91. [DOI: 10.1002/anie.201503521] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Indexed: 11/07/2022]
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160
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Miller ZD, Dorel R, Montgomery J. Regiodivergent and Stereoselective Hydrosilylation of 1,3-Disubstituted Allenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503521] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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161
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Ray A, Mukherjee S, Das J, Bhandari MK, Du H, Yousufuddin M, Lovely CJ. Preparation and Diels-Alder reactions of 1'-heterosubsituted vinylimidazoles. Tetrahedron Lett 2015; 56:3518-3522. [PMID: 26139945 PMCID: PMC4484863 DOI: 10.1016/j.tetlet.2015.01.190] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
A Diels-Alder/rearrangement sequence has been pursued in our lab en route to a number of oroidin dimers. In order to access the fully substituted core of these molecules, 1',2'-disubstituted 4-vinylimidazoles were required as dienes. The preparation of a series of a 4-vinylimidazoles containing substituents on the vinyl moiety via hydroalumination/electrophilic trapping or hydrosilylation are described. These derivatives undergo Diels-Alder reactions with N-phenylmaleimide to provide the tetrahydrobenzimidazole derivatives. The cycloadducts derived from halosubstituted systems generally undergo elimination, leading to the corresponding dihydrobenzimidazole, whereas the silyl and stannyl derivatives provide the corresponding 4-substituted tetrahydrobenzimidazole.
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Affiliation(s)
- Abhisek Ray
- Department of Chemistry and Biochemistry, The University of Texas at Arlington,
Arlington, Texas 76019-0065, USA
| | - Sabuj Mukherjee
- Department of Chemistry and Biochemistry, The University of Texas at Arlington,
Arlington, Texas 76019-0065, USA
| | - Jayanta Das
- Department of Chemistry and Biochemistry, The University of Texas at Arlington,
Arlington, Texas 76019-0065, USA
| | - Manoj K. Bhandari
- Department of Chemistry and Biochemistry, The University of Texas at Arlington,
Arlington, Texas 76019-0065, USA
| | - Hongwang Du
- Department of Chemistry and Biochemistry, The University of Texas at Arlington,
Arlington, Texas 76019-0065, USA
| | - Muhammed Yousufuddin
- Department of Chemistry and Biochemistry, The University of Texas at Arlington,
Arlington, Texas 76019-0065, USA
| | - Carl J. Lovely
- Department of Chemistry and Biochemistry, The University of Texas at Arlington,
Arlington, Texas 76019-0065, USA
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162
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Rummelt SM, Radkowski K, Roşca DA, Fürstner A. Interligand Interactions Dictate the Regioselectivity oftrans-Hydrometalations and Related Reactions Catalyzed by [Cp*RuCl]. Hydrogen Bonding to a Chloride Ligand as a Steering Principle in Catalysis. J Am Chem Soc 2015; 137:5506-19. [DOI: 10.1021/jacs.5b01475] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Karin Radkowski
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | | | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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163
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Fuchs M, Fürstner A. trans-Hydrogenation: application to a concise and scalable synthesis of brefeldin A. Angew Chem Int Ed Engl 2015; 54:3978-82. [PMID: 25651519 PMCID: PMC4471581 DOI: 10.1002/anie.201411618] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Indexed: 11/07/2022]
Abstract
The important biochemical probe molecule brefeldin A (1) has served as an inspirational target in the past, but none of the many routes has actually delivered more than just a few milligrams of product, where documented. The approach described herein is clearly more efficient; it hinges upon the first implementation of ruthenium-catalyzed trans-hydrogenation in natural products total synthesis. Because this unorthodox reaction is selective for the triple bond and does not touch the transannular alkene or the lactone site of the cycloalkyne, it outperforms the classical Birch-type reduction that could not be applied at such a late stage. Other key steps en route to 1 comprise an iron-catalyzed reductive formation of a non-terminal alkyne, an asymmetric propiolate carbonyl addition mediated by a bulky amino alcohol, and a macrocyclization by ring-closing alkyne metathesis catalyzed by a molybdenum alkylidyne.
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Affiliation(s)
- Michael Fuchs
- Max-Planck-Institut für Kohlenforschung45470 Mülheim/Ruhr (Germany)
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung45470 Mülheim/Ruhr (Germany)
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164
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Fuchs M, Fürstner A. trans-Hydrogenation: Application to a Concise and Scalable Synthesis of Brefeldin A. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 127:4050-4054. [PMID: 27478259 PMCID: PMC4955225 DOI: 10.1002/ange.201411618] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Indexed: 12/23/2022]
Abstract
The important biochemical probe molecule brefeldin A (1) has served as an inspirational target in the past, but none of the many routes has actually delivered more than just a few milligrams of product, where documented. The approach described herein is clearly more efficient; it hinges upon the first implementation of ruthenium-catalyzed trans-hydrogenation in natural products total synthesis. Because this unorthodox reaction is selective for the triple bond and does not touch the transannular alkene or the lactone site of the cycloalkyne, it outperforms the classical Birch-type reduction that could not be applied at such a late stage. Other key steps en route to 1 comprise an iron-catalyzed reductive formation of a non-terminal alkyne, an asymmetric propiolate carbonyl addition mediated by a bulky amino alcohol, and a macrocyclization by ring-closing alkyne metathesis catalyzed by a molybdenum alkylidyne.
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Affiliation(s)
- Michael Fuchs
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
| | - Alois Fürstner
- Max‐Planck‐Institut für Kohlenforschung, 45470 Mülheim/Ruhr (Germany)
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165
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Ding S, Song LJ, Wang Y, Zhang X, Chung LW, Wu YD, Sun J. Highly Regio- and Stereoselective Hydrosilylation of Internal Thioalkynes under Mild Conditions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500372] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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166
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Ding S, Song LJ, Wang Y, Zhang X, Chung LW, Wu YD, Sun J. Highly Regio- and Stereoselective Hydrosilylation of Internal Thioalkynes under Mild Conditions. Angew Chem Int Ed Engl 2015; 54:5632-5. [DOI: 10.1002/anie.201500372] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Indexed: 11/09/2022]
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167
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Pawliczek M, Schneider TF, Maaß C, Stalke D, Werz DB. Formaleanti-Carbopalladierungen nicht-aktivierter Alkine: Voraussetzungen, mechanistische Untersuchungen und Anwendungen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411210] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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168
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Pawliczek M, Schneider TF, Maass C, Stalke D, Werz DB. Formal anti-carbopalladation reactions of non-activated alkynes: requirements, mechanistic insights, and applications. Angew Chem Int Ed Engl 2015; 54:4119-23. [PMID: 25651006 DOI: 10.1002/anie.201411210] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Indexed: 11/11/2022]
Abstract
Formal anti-carbopalladation reactions of CC triple bonds are uncommon, but highly useful transformations. Alkynes can be designed to give anti-carbopalladation products. Prerequisite is the exclusion of other reaction pathways to provoke the cis-trans isomerization of the syn-carbopalladation intermediate. Detailed mechanistic studies of this crucial step by experimental and computational means were performed. Application of an intramolecular version for the synthesis of oligocyclic compounds and substituted dibenzofurans is also described.
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Affiliation(s)
- Martin Pawliczek
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen (Germany)
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169
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Iglesias M, Aliaga-Lavrijsen M, Miguel PJS, Fernández-Alvarez FJ, Pérez-Torrente JJ, Oro LA. Preferential α-Hydrosilylation of Terminal Alkynes by Bis-N-Heterocyclic Carbene Rhodium(III) Catalysts. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400673] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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170
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Guo W, Pleixats R, Shafir A, Parella T. Rhodium Nanoflowers Stabilized by a Nitrogen-Rich PEG-Tagged Substrate as Recyclable Catalyst for the Stereoselective Hydrosilylation of Internal Alkynes. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400740] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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171
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Niljianskul N, Zhu S, Buchwald SL. Enantioselective Synthesis of α-Aminosilanes by Copper-Catalyzed Hydroamination of Vinylsilanes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410326] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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172
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Niljianskul N, Zhu S, Buchwald SL. Enantioselective synthesis of α-aminosilanes by copper-catalyzed hydroamination of vinylsilanes. Angew Chem Int Ed Engl 2014; 54:1638-41. [PMID: 25475991 DOI: 10.1002/anie.201410326] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Indexed: 12/14/2022]
Abstract
The synthesis of α-aminosilanes by a highly enantio- and regioselective copper-catalyzed hydroamination of vinylsilanes is reported. The system employs Cu-DTBM-SEGPHOS as the catalyst, diethoxymethylsilane as the stoichiometric reductant, and O-benzoylhydroxylamines as the electrophilic nitrogen source. This hydroamination reaction is compatible with differentially substituted vinylsilanes, thus providing access to amino acid mimics and other valuable chiral organosilicon compounds.
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Affiliation(s)
- Nootaree Niljianskul
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (USA)
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173
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Conifer C, Gunanathan C, Rinesch T, Hölscher M, Leitner W. Solvent-Free Hydrosilylation of Terminal Alkynes by Reaction with a Nonclassical Ruthenium Hydride Pincer Complex. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201403016] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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174
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Gao R, Pahls DR, Cundari TR, Yi CS. Experimental and Computational Studies of the Ruthenium-Catalyzed Hydrosilylation of Alkynes: Mechanistic Insights into the Regio- and Stereoselective Formation of Vinylsilanes. Organometallics 2014. [DOI: 10.1021/om501019j] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ruili Gao
- Department
of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881 United States
| | - Dale R. Pahls
- Department
of Chemistry, CASCaM, University of North Texas, Denton, Texas 76203-5017 United States
| | - Thomas R. Cundari
- Department
of Chemistry, CASCaM, University of North Texas, Denton, Texas 76203-5017 United States
| | - Chae S. Yi
- Department
of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881 United States
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175
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Miller ZD, Montgomery J. Regioselective allene hydroarylation via one-pot allene hydrosilylation/Pd-catalyzed cross-coupling. Org Lett 2014; 16:5486-9. [PMID: 25275880 PMCID: PMC4201326 DOI: 10.1021/ol502766q] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
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Advances
in hydroarylation have been achieved by the development
of a one-pot regioselective allene hydrosilylation/Pd(0)-catalyzed
cross-coupling protocol. The regioselectivity is primarily governed
by N-heterocyclic carbene (NHC) ligand identity in
the hydrosilylation step and is preserved in the subsequent cross-coupling
reaction. This methodology affords streamlined access to functionalized
1,1-disubstituted alkenes with excellent regiocontrol.
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Affiliation(s)
- Zachary D Miller
- Department of Chemistry, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
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176
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Kuwabara T, Guo JD, Nagase S, Sasamori T, Tokitoh N, Saito M. Synthesis, Structures, and Electronic Properties of Triple- and Double-Decker Ruthenocenes Incorporated by a Group 14 Metallole Dianion Ligand. J Am Chem Soc 2014; 136:13059-64. [DOI: 10.1021/ja507330p] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Takuya Kuwabara
- Department
of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Jing-Dong Guo
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho,
Sakyo-ku, Kyoto 606-8103, Japan
| | - Shigeru Nagase
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho,
Sakyo-ku, Kyoto 606-8103, Japan
| | - Takahiro Sasamori
- Institute
for Chemical Research, Kyoto University, Gokasho, Uji,, Kyoto 611-0011, Japan
| | - Norihiro Tokitoh
- Institute
for Chemical Research, Kyoto University, Gokasho, Uji,, Kyoto 611-0011, Japan
| | - Masaichi Saito
- Department
of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
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177
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Zhou H, Wang YB. Copper(I)-Catalyzed Highly Regio- and Stereoselective Hydrosilylation of Terminal Alkynes with Boryldisiloxane. ChemCatChem 2014. [DOI: 10.1002/cctc.201402405] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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178
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Liu S, Zhao J, Kaminsky L, Wilson RJ, Marino N, Clark DA. Ethylene Transposition: Ruthenium Hydride Catalyzed Intramolecular trans-Silylvinylation of Internal Alkynes. Org Lett 2014; 16:4456-9. [DOI: 10.1021/ol5020027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shasha Liu
- Department of Chemistry,
1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Jinbo Zhao
- Department of Chemistry,
1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Lauren Kaminsky
- Department of Chemistry,
1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Robert J. Wilson
- Department of Chemistry,
1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Nadia Marino
- Department of Chemistry,
1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Daniel A. Clark
- Department of Chemistry,
1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
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179
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Atienza CCH, Diao T, Weller KJ, Nye SA, Lewis KM, Delis JGP, Boyer JL, Roy AK, Chirik PJ. Bis(imino)pyridine cobalt-catalyzed dehydrogenative silylation of alkenes: scope, mechanism, and origins of selective allylsilane formation. J Am Chem Soc 2014; 136:12108-18. [PMID: 25068530 DOI: 10.1021/ja5060884] [Citation(s) in RCA: 171] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aryl-substituted bis(imino)pyridine cobalt methyl complex, ((Mes)PDI)CoCH3 ((Mes)PDI = 2,6-(2,4,6-Me3C6H2-N═CMe)2C5H3N), promotes the catalytic dehydrogenative silylation of linear α-olefins to selectively form the corresponding allylsilanes with commercially relevant tertiary silanes such as (Me3SiO)2MeSiH and (EtO)3SiH. Dehydrogenative silylation of internal olefins such as cis- and trans-4-octene also exclusively produces the allylsilane with the silicon located at the terminus of the hydrocarbon chain, resulting in a highly selective base-metal-catalyzed method for the remote functionalization of C-H bonds with retention of unsaturation. The cobalt-catalyzed reactions also enable inexpensive α-olefins to serve as functional equivalents of the more valuable α, ω-dienes and offer a unique method for the cross-linking of silicone fluids with well-defined carbon spacers. Stoichiometric experiments and deuterium labeling studies support activation of the cobalt alkyl precursor to form a putative cobalt silyl, which undergoes 2,1-insertion of the alkene followed by selective β-hydrogen elimination from the carbon distal from the large tertiary silyl group and accounts for the observed selectivity for allylsilane formation.
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180
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Hazra CK, Fopp C, Oestreich M. Copper(I)-Catalyzed Regioselective Addition of Nucleophilic Silicon Across Terminal and Internal Carbon-Carbon Triple Bonds. Chem Asian J 2014; 9:3005-10. [DOI: 10.1002/asia.201402643] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Indexed: 01/15/2023]
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181
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Solid Supported Palladium(0) Nanoparticles: An Efficient Heterogeneous Catalyst for Regioselective Hydrosilylation of Alkynes and Suzuki Coupling of β-Arylvinyl Iodides. Catal Letters 2014. [DOI: 10.1007/s10562-014-1311-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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182
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Fürstner A. Catalysis for Total Synthesis: A Personal Account. Angew Chem Int Ed Engl 2014; 53:8587-98. [DOI: 10.1002/anie.201402719] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Indexed: 01/09/2023]
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183
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184
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Rooke DA, Menard ZA, Ferreira EM. An analysis of the influences dictating regioselectivity in platinum-catalyzed hydrosilylations of internal alkynes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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185
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Nishimaru T, Kondo M, Takeshita K, Takahashi K, Ishihara J, Hatakeyama S. Total Synthesis of Marinomycin A Based on a Direct Dimerization Strategy. Angew Chem Int Ed Engl 2014; 53:8459-62. [DOI: 10.1002/anie.201404408] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Indexed: 11/07/2022]
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186
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Nishimaru T, Kondo M, Takeshita K, Takahashi K, Ishihara J, Hatakeyama S. Total Synthesis of Marinomycin A Based on a Direct Dimerization Strategy. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404408] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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187
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Uehling MR, Rucker RP, Lalic G. Catalytic Anti-Markovnikov Hydrobromination of Alkynes. J Am Chem Soc 2014; 136:8799-803. [DOI: 10.1021/ja503944n] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mycah R. Uehling
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Richard P. Rucker
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Gojko Lalic
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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188
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Cornelissen L, Lefrancq M, Riant O. Copper-Catalyzed Cross-Coupling of Vinylsiloxanes with Bromoalkynes: Synthesis of Enynes. Org Lett 2014; 16:3024-7. [DOI: 10.1021/ol501140p] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Loïc Cornelissen
- Institute
of Condensed Matter
and Nanosciences, Molecules, Solids and Reactivity (IMCN/MOST), − Université Catholique de Louvain, Place Louis Pasteur 1, bte L4.01.02, 1348 Louvain-la-Neuve, Belgium
| | - Maxime Lefrancq
- Institute
of Condensed Matter
and Nanosciences, Molecules, Solids and Reactivity (IMCN/MOST), − Université Catholique de Louvain, Place Louis Pasteur 1, bte L4.01.02, 1348 Louvain-la-Neuve, Belgium
| | - Olivier Riant
- Institute
of Condensed Matter
and Nanosciences, Molecules, Solids and Reactivity (IMCN/MOST), − Université Catholique de Louvain, Place Louis Pasteur 1, bte L4.01.02, 1348 Louvain-la-Neuve, Belgium
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189
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Xie H, Zhao L, Yang L, Lei Q, Fang W, Xiong C. Mechanisms and Origins of Switchable Regioselectivity of Palladium- and Nickel-Catalyzed Allene Hydrosilylation with N-Heterocyclic Carbene Ligands: A Theoretical Study. J Org Chem 2014; 79:4517-27. [DOI: 10.1021/jo500557w] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Hujun Xie
- Department
of Applied Chemistry, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People’s Republic of China
| | - Lijiang Zhao
- Department
of Applied Chemistry, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People’s Republic of China
| | - Liu Yang
- Department
of Applied Chemistry, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People’s Republic of China
| | - Qunfang Lei
- Department
of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Wenjun Fang
- Department
of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Chunhua Xiong
- Department
of Applied Chemistry, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People’s Republic of China
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190
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Rummelt SM, Fürstner A. Ruthenium-Catalyzedtrans-Selective Hydrostannation of Alkynes. Angew Chem Int Ed Engl 2014; 53:3626-30. [DOI: 10.1002/anie.201311080] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Indexed: 11/05/2022]
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191
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Rummelt SM, Fürstner A. Ruthenium-Catalyzedtrans-Selective Hydrostannation of Alkynes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201311080] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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192
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Muchnij JA, Kwaramba FB, Rahaim RJ. Sterically Directed Iridium-Catalyzed Hydrosilylation of Alkenes in the Presence of Alkynes. Org Lett 2014; 16:1330-3. [DOI: 10.1021/ol5000549] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jill A. Muchnij
- 107 Physical
Sciences 1,
Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Farai B. Kwaramba
- 107 Physical
Sciences 1,
Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Ronald J. Rahaim
- 107 Physical
Sciences 1,
Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, United States
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193
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Calderone JA, Santos WL. Copper(II)-Catalyzed Silylation of Activated Alkynes in Water: Diastereodivergent Access toE- orZ-β-Silyl-α,β-Unsaturated Carbonyl and Carboxyl Compounds. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310695] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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194
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Calderone JA, Santos WL. Copper(II)-catalyzed silylation of activated alkynes in water: diastereodivergent access to E- or Z-β-silyl-α,β-unsaturated carbonyl and carboxyl compounds. Angew Chem Int Ed Engl 2014; 53:4154-8. [PMID: 24532188 DOI: 10.1002/anie.201310695] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Indexed: 11/08/2022]
Abstract
Copper(II)-catalyzed silylation of substituted alkynylcarbonyl compounds was investigated. Through the activation of Me2 PhSiBpin in water at room temperature and open atmosphere, vinylsilanes conjugated to carbonyl groups are synthesized in high yield. A surprising diastereodivergent access to olefin geometry was discovered using a silyl conjugate addition strategy: aldehydes and ketones were Z selective while esters and amides were exclusively transformed into the E products.
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Affiliation(s)
- Joseph A Calderone
- Department of Chemistry, Virginia Tech, 900 West Campus Drive, Blacksburg, VA 24061 (USA) http://www.santosgroup.chem.vt.edu
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195
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Planellas M, Guo W, Alonso F, Yus M, Shafir A, Pleixats R, Parella T. Hydrosilylation of Internal Alkynes Catalyzed by Tris- Imidazolium Salt-Stabilized Palladium Nanoparticles. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300641] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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196
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Cornelissen L, Cirriez V, Vercruysse S, Riant O. Copper-catalyzed Hiyama cross-coupling using vinylsilanes and benzylic electrophiles. Chem Commun (Camb) 2014; 50:8018-20. [DOI: 10.1039/c4cc02923b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper-catalyzed cross-coupling of vinylsiloxanes with benzyl bromides allowing a mild and simple access to important allyl arene compounds.
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Affiliation(s)
- L. Cornelissen
- Institute of Condensed Matter and Nanosciences
- Molecules, Solids and Reactivity (IMCN/MOST) – Université catholique de Louvain
- 1348 Louvain-la-Neuve, Belgium
| | - V. Cirriez
- Institute of Condensed Matter and Nanosciences
- Molecules, Solids and Reactivity (IMCN/MOST) – Université catholique de Louvain
- 1348 Louvain-la-Neuve, Belgium
| | - S. Vercruysse
- Institute of Condensed Matter and Nanosciences
- Molecules, Solids and Reactivity (IMCN/MOST) – Université catholique de Louvain
- 1348 Louvain-la-Neuve, Belgium
| | - O. Riant
- Institute of Condensed Matter and Nanosciences
- Molecules, Solids and Reactivity (IMCN/MOST) – Université catholique de Louvain
- 1348 Louvain-la-Neuve, Belgium
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197
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Chen T, Xiao J, Zhou Y, Yin S, Han LB. Nickel-catalyzed (E)-selective semihydrogenation of internal alkynes with hypophosphorous acid. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.09.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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198
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Cornelissen L, Vercruysse S, Sanhadji A, Riant O. Copper-Catalyzed Vinylsilane Allylation. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301360] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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199
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Huber T, Firlbeck D, Riepl HM. Iridium-catalysed isomerising trialkylsilylation of methyl oleate. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.06.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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200
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Sundararaju B, Fürstner A. Atrans-Selective Hydroboration of Internal Alkynes. Angew Chem Int Ed Engl 2013; 52:14050-4. [DOI: 10.1002/anie.201307584] [Citation(s) in RCA: 154] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Indexed: 01/05/2023]
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