1
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Cheng Y, Hu R, Chen X, Yang H, Niu X, Yang L. Recent Progress in Direct Catalytic C(sp 3)—H Silylation Reactions. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Marciniec B, Pietraszuk C, Pawluć P, Maciejewski H. Inorganometallics (Transition Metal-Metalloid Complexes) and Catalysis. Chem Rev 2021; 122:3996-4090. [PMID: 34967210 PMCID: PMC8832401 DOI: 10.1021/acs.chemrev.1c00417] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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While the formation
and breaking of transition metal (TM)–carbon
bonds plays a pivotal role in the catalysis of organic compounds,
the reactivity of inorganometallic species, that is, those involving
the transition metal (TM)–metalloid (E) bond, is of key importance
in most conversions of metalloid derivatives catalyzed by TM complexes.
This Review presents the background of inorganometallic catalysis
and its development over the last 15 years. The results of mechanistic
studies presented in the Review are related to the occurrence of TM–E
and TM–H compounds as reactive intermediates in the catalytic
transformations of selected metalloids (E = B, Si, Ge, Sn, As, Sb,
or Te). The Review illustrates the significance of inorganometallics
in catalysis of the following processes: addition of metalloid–hydrogen
and metalloid–metalloid bonds to unsaturated compounds; activation
and functionalization of C–H bonds and C–X bonds with
hydrometalloids and bismetalloids; activation and functionalization
of C–H bonds with vinylmetalloids, metalloid halides, and sulfonates;
and dehydrocoupling of hydrometalloids. This first Review on inorganometallic
catalysis sums up the developments in the catalytic methods for the
synthesis of organometalloid compounds and their applications in advanced
organic synthesis as a part of tandem reactions.
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Affiliation(s)
- Bogdan Marciniec
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Cezary Pietraszuk
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Piotr Pawluć
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Hieronim Maciejewski
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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3
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Li J, Ding M, Jiang C. Palladium-Catalyzed ortho-C(sp 2)-H Silylation of Aromatic Ketones Using an Aminooxyamide Auxiliary. Org Lett 2021; 23:9036-9040. [PMID: 34766773 DOI: 10.1021/acs.orglett.1c03214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A palladium-catalyzed direct and selective ortho-C(sp2)-H silylation of aromatic ketones has been achieved using an aminooxyamide auxiliary. The reaction tolerates various orth-, meta-, and para- substituents on the aromatic ring and can be applied to thiophenyl and vinyl ketones. The ortho-C(sp2)-H bond was monosilylated selectively in comparison with other aromatic C-H bonds, benzyl or allylic C(sp3)-H bonds, and acidic α-C(sp3)-H bonds. The aminooxyamide auxiliary can be easily installed and readily removed after the silylation reaction. The resulting ortho-silyl aromatic ketone derivatives are potentially useful building blocks for organic synthesis.
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Affiliation(s)
- Jianhua Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Meiying Ding
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Chao Jiang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
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4
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Li J, Jiang C. Palladium-Catalyzed C-H Silylation of Aliphatic Ketones Using an Aminooxyamide Auxiliary. Org Lett 2021; 23:5359-5362. [PMID: 34184896 DOI: 10.1021/acs.orglett.1c01678] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-catalyzed β-C(sp3)-H silylation of aliphatic ketones with disilanes to afford β-silyl ketones is reported. The aminooxyamide auxiliary is critical for the C-H activation and silylation. The reaction tolerates a number of functional groups and shows good selectivity in silylating β-C(sp3)-H bonds in the company of C(sp2)-H bonds and acidic α-C(sp3)-H bonds. The reaction is scalable, and the aminooxyamide auxiliary is readily removed to give β-silyl ketones, which could serve as useful building blocks for organic synthesis. Late-stage diversification using this protocol is demonstrated in the silylation of santonin with good yield.
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Affiliation(s)
- Jianhua Li
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Chao Jiang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
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5
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Zhang X, Geng P, Liu G, Huang Z. Ru-Catalyzed Site-Selective Aliphatic C–H Bond Silylation of Amides and Carbamides. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00264] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xin Zhang
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Peiyu Geng
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Guixia Liu
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China
| | - Zheng Huang
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, Zhejiang 310024, China
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6
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Chapp SM, Schley ND. Reversible C(sp 3)-Si Oxidative Addition of Unsupported Organosilanes: Effects of Silicon Substituents on Kinetics and Thermodynamics. J Am Chem Soc 2021; 143:5534-5539. [PMID: 33784087 DOI: 10.1021/jacs.1c01564] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The intermolecular oxidative addition of unactivated C(sp3)-Si bonds is reported for a family of organosilanes at a cationic pincer-supported iridium complex. To our knowledge, no examples of oxidative addition to give analogous unsupported (alkyl)metal silyl complexes have been previously reported. The generality of this transformation is excellent, with successful examples demonstrated for tetraorganosilanes, mono- and poly alkoxysilanes, and two siloxysilanes. Oxidative addition is found to be completely reversible, with the product of reductive elimination being subject to trapping by triethylsilane. The successful isolation of these metal silyl complexes has allowed for an in-depth kinetic analysis of C(sp3)-Si reductive elimination, a process with strong implications in both catalytic C-H silylation and olefin hydrosilylation. The apparent order of reactivity is SiMe3 > SiMe2(CF3) > SiMe2OSiMe3 > SiMe2OSiMe2OSiMe3 > SiMe2(OMe) > SiMe2(OEt) > SiMe(OMe)2. A DFT analysis of the oxidative addition products shows that the thermodynamic stability of the (alkyl)metal silyl complexes span a range of ca. 10 kcal·mol-1, which relate closely with the experimentally determined rates of C(sp3)-Si reductive elimination and trapping, though a clear kinetic distinction exists between methoxy- and siloxysilyl complexes.
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Affiliation(s)
- Scott M Chapp
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235 United States
| | - Nathan D Schley
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235 United States
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7
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Abstract
Metal-catalyzed activations of inert sp3C–H bonds have recently brought a revolution in the synthesis of useful molecules and molecular materials, due to the interest of the formed sp3C–SiR3 silanes, stable organometallic species, and for further functionalizations that sp3C–H bonds cannot reach directly.
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Affiliation(s)
- Bin Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P. R. China
| | - Pierre H. Dixneuf
- Univ. Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) UMR 6226
- F-35000 Rennes
- France
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8
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Lin Q, Lin Z, Pan M, Zheng Q, Li H, Chen X, Darcel C, Dixneuf PH, Li B. Alkenes as hydrogen trappers to control the regio-selective ruthenium(ii) catalyzed ortho C–H silylation of amides and anilides. Org Chem Front 2021. [DOI: 10.1039/d0qo01031f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A convenient and practical pathway to versatile silylated amides and anilides is described via efficient and selective ruthenium(ii) catalyzed ortho C–H silylation with different alkenes as the hydrogen acceptors.
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Affiliation(s)
- Qiao Lin
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Zirui Lin
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Mingxing Pan
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Qiaojin Zheng
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Hui Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
| | - Christophe Darcel
- Univ. Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes)
- F-35000 Rennes
- France
| | - Pierre H. Dixneuf
- Univ. Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes)
- F-35000 Rennes
- France
| | - Bin Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- P.R. China
- Univ. Rennes
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9
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Wen J, Dong B, Zhu J, Zhao Y, Shi Z. Revealing Silylation of C(sp
2
)/C(sp
3
)–H Bonds in Arylphosphines by Ruthenium Catalysis. Angew Chem Int Ed Engl 2020; 59:10909-10912. [DOI: 10.1002/anie.202003865] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Jian Wen
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Ben Dong
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Jinjun Zhu
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Yue Zhao
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
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10
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Wen J, Dong B, Zhu J, Zhao Y, Shi Z. Revealing Silylation of C(sp
2
)/C(sp
3
)–H Bonds in Arylphosphines by Ruthenium Catalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003865] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jian Wen
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Ben Dong
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Jinjun Zhu
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Yue Zhao
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination ChemistryChemistry and Biomedicine Innovation Center (ChemBIC)School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 China
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11
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12
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Murata M, Maeda Y. Ruthenium-Catalyzed Functional-Group-Directed C-H Silylation and Borylation. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Miki Murata
- Division of Applied Chemistry, Faculty of Engineering, Kitami Institute of Technology
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13
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Yang Z, Jie L, Yao Z, Yang Z, Cui X. Rhodium(III)‐Catalyzed Synthesis of
N
‐(2‐Acetoxyalkyl)isoquinolones from Oxazolines and Alkynes through C−N Bond Formation and Ring‐Opening. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801217] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zi Yang
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Lianghua Jie
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Zhenyu Yao
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
| | - Zhimin Yang
- Instrumental Analysis Center of Huaqiao University Xiamen 361021 People's Republic of China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences Huaqiao University Xiamen 361021 People's Republic of China
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14
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Sambiagio C, Schönbauer D, Blieck R, Dao-Huy T, Pototschnig G, Schaaf P, Wiesinger T, Zia MF, Wencel-Delord J, Besset T, Maes BUW, Schnürch M. A comprehensive overview of directing groups applied in metal-catalysed C-H functionalisation chemistry. Chem Soc Rev 2018; 47:6603-6743. [PMID: 30033454 PMCID: PMC6113863 DOI: 10.1039/c8cs00201k] [Citation(s) in RCA: 1087] [Impact Index Per Article: 181.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/20/2022]
Abstract
The present review is devoted to summarizing the recent advances (2015-2017) in the field of metal-catalysed group-directed C-H functionalisation. In order to clearly showcase the molecular diversity that can now be accessed by means of directed C-H functionalisation, the whole is organized following the directing groups installed on a substrate. Its aim is to be a comprehensive reference work, where a specific directing group can be easily found, together with the transformations which have been carried out with it. Hence, the primary format of this review is schemes accompanied with a concise explanatory text, in which the directing groups are ordered in sections according to their chemical structure. The schemes feature typical substrates used, the products obtained as well as the required reaction conditions. Importantly, each example is commented on with respect to the most important positive features and drawbacks, on aspects such as selectivity, substrate scope, reaction conditions, directing group removal, and greenness. The targeted readership are both experts in the field of C-H functionalisation chemistry (to provide a comprehensive overview of the progress made in the last years) and, even more so, all organic chemists who want to introduce the C-H functionalisation way of thinking for a design of straightforward, efficient and step-economic synthetic routes towards molecules of interest to them. Accordingly, this review should be of particular interest also for scientists from industrial R&D sector. Hence, the overall goal of this review is to promote the application of C-H functionalisation reactions outside the research groups dedicated to method development and establishing it as a valuable reaction archetype in contemporary R&D, comparable to the role cross-coupling reactions play to date.
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Affiliation(s)
- Carlo Sambiagio
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - David Schönbauer
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Remi Blieck
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Toan Dao-Huy
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Gerit Pototschnig
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Patricia Schaaf
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Thomas Wiesinger
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Muhammad Farooq Zia
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Joanna Wencel-Delord
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509)
, Université de Strasbourg
,
ECPM 25 Rue Becquerel
, 67087 Strasbourg
, France
| | - Tatiana Besset
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Bert U. W. Maes
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
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15
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Hirano M, Fukumoto Y, Matsubara N, Chatani N. A Cationic Iridium-catalyzed C(sp3)–H Silylation of 2-Alkyl-1,3-azoles at the α-Position in the 2-Alkyl Group Leading to 2-(1-Silylalkyl)-1,3-azoles. CHEM LETT 2018. [DOI: 10.1246/cl.171137] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Masaya Hirano
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshiya Fukumoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Nao Matsubara
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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16
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Bunescu A, Butcher TW, Hartwig JF. Traceless Silylation of β-C(sp 3)-H Bonds of Alcohols via Perfluorinated Acetals. J Am Chem Soc 2018; 140:1502-1507. [PMID: 29283571 PMCID: PMC5809123 DOI: 10.1021/jacs.7b12150] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the silylation of primary C-H bonds located β to secondary and tertiary alcohols by exploiting perfluorinated esters as traceless directing groups. The conversion of a secondary or tertiary alcohol to a perfluoroalkyl ester and conversion of the ester to the corresponding silyl acetals by hydrosilylation allows for selective β-C(sp3)-H silylation catalyzed by the combination of [Ir(cod)OMe]2 and Me4Phen (3,4,7,8-tetramethyl-1,10-phenanthroline) to form 6-membered dioxasilinane. Tamao-Fleming oxidation of these dioxasilinane leads to 1,2 diols. The developed sequence was applied to a series of natural products containing hydroxyl groups.
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Affiliation(s)
- Ala Bunescu
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Trevor W. Butcher
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - John F. Hartwig
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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17
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Fukumoto Y, Hirano M, Matsubara N, Chatani N. Ir4(CO)12-Catalyzed Benzylic C(sp3)–H Silylation of 2-Alkylpyridines with Hydrosilanes Leading to 2-(1-Silylalkyl)pyridines. J Org Chem 2017; 82:13649-13655. [DOI: 10.1021/acs.joc.7b02375] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yoshiya Fukumoto
- Department of Applied Chemistry, Faculty
of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masaya Hirano
- Department of Applied Chemistry, Faculty
of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Nao Matsubara
- Department of Applied Chemistry, Faculty
of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty
of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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18
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Ohmura T, Nishiura H, Suginome M. Palladium-Catalyzed β-Elimination of Aminoboranes from (Aminomethylsilyl)boranes Leading to the Formation of Silene Dimers. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00695] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Toshimichi Ohmura
- Department of Synthetic Chemistry and
Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroki Nishiura
- Department of Synthetic Chemistry and
Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and
Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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19
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Fang H, Hou W, Liu G, Huang Z. Ruthenium-Catalyzed Site-Selective Intramolecular Silylation of Primary C-H Bonds for Synthesis of Sila-Heterocycles. J Am Chem Soc 2017; 139:11601-11609. [PMID: 28745875 DOI: 10.1021/jacs.7b06798] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Incorporating the silicon element into bioactive organic molecules has received increasing attention in medicinal chemistry. Moreover, organosilanes are valuable synthetic intermediates for fine chemicals and materials. Transition metal-catalyzed C-H silylation has become an important strategy for C-Si bond formations. However, despite the great advances in aromatic C(sp2)-H bond silylations, catalytic methods for aliphatic C(sp3)-H bond silylations are relatively rare. Here we report a pincer ruthenium catalyst for intramolecular silylations of various primary C(sp3)-H bonds adjacent to heteroatoms (O, N, Si, Ge), including the first intramolecular silylations of C-H bonds α to O, N, and Ge. This method provides a general, synthetically efficient approach to novel classes of Si-containing five-membered [1,3]-sila-heterocycles, including oxasilolanes, azasilolanes, disila-heterocycles, and germasilolane. The trend in the reactivity of five classes of C(sp3)-H bonds toward the Ru-catalyzed silylation is elucidated. Mechanistic studies indicate that the rate-determining step is the C-H bond cleavage involving a ruthenium silyl complex as the key intermediate, while a η2-silene ruthenium hydride species is determined to be an off-cycle intermediate.
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Affiliation(s)
- Huaquan Fang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Wenjun Hou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Guixia Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
| | - Zheng Huang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, China
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20
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Rubio-Pérez L, Iglesias M, Munárriz J, Polo V, Passarelli V, Pérez-Torrente JJ, Oro LA. A well-defined NHC-Ir(iii) catalyst for the silylation of aromatic C-H bonds: substrate survey and mechanistic insights. Chem Sci 2017; 8:4811-4822. [PMID: 28959403 PMCID: PMC5602144 DOI: 10.1039/c6sc04899d] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 04/03/2017] [Indexed: 11/25/2022] Open
Abstract
A well-defined NHC-Ir(iii) catalyst provides access to a wide range of aryl- and heteroarylsilanes by intermolecular dehydrogenative C–H bond silylation.
A well-defined NHC–Ir(iii) catalyst, [Ir(H)2(IPr)(py)3][BF4] (IPr = 1,3-bis-(2,6-diisopropylphenyl)imidazol-2-ylidene), that provides access to a wide range of aryl- and heteroaryl-silanes by intermolecular dehydrogenative C–H bond silylation has been prepared and fully characterized. The directed and non-directed functionalisation of C–H bonds has been accomplished successfully using an arene as the limiting reagent and a variety of hydrosilanes in excess, including Et3SiH, Ph2MeSiH, PhMe2SiH, Ph3SiH and (EtO)3SiH. Examples that show unexpected selectivity patterns that stem from the presence of aromatic substituents in hydrosilanes are also presented. The selective bisarylation of bis(hydrosilane)s by directed or non-directed silylation of C–H bonds is also reported herein. Theoretical calculations at the DFT level shed light on the intermediate species in the catalytic cycle and the role played by the ligand system on the Ir(iii)/Ir(i) mechanism.
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Affiliation(s)
- Laura Rubio-Pérez
- Departamento Química Inorgánica - ISQCH , Universidad de Zaragoza - CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain . ;
| | - Manuel Iglesias
- Departamento Química Inorgánica - ISQCH , Universidad de Zaragoza - CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain . ;
| | - Julen Munárriz
- Departamento Química Física - Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) , Universidad de Zaragoza , Pedro Cerbuna 12 , 50009 Zaragoza , Spain
| | - Victor Polo
- Departamento Química Física - Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) , Universidad de Zaragoza , Pedro Cerbuna 12 , 50009 Zaragoza , Spain
| | - Vincenzo Passarelli
- Departamento Química Inorgánica - ISQCH , Universidad de Zaragoza - CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain . ; .,Centro Universitario de la Defensa , Ctra. Huesca s/n , ES-50090 Zaragoza , Spain
| | - Jesús J Pérez-Torrente
- Departamento Química Inorgánica - ISQCH , Universidad de Zaragoza - CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain . ;
| | - Luis A Oro
- Departamento Química Inorgánica - ISQCH , Universidad de Zaragoza - CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain . ; .,King Fahd University of Petroleum & Minerals (KFUPM) , Dhahran 31261 , Saudi Arabia
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21
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Fukumoto Y, Hirano M, Chatani N. Iridium-Catalyzed Regioselective C(sp3)–H Silylation of 4-Alkylpyridines at the Benzylic Position with Hydrosilanes Leading to 4-(1-Silylalkyl)pyridines. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00539] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yoshiya Fukumoto
- Department of Applied Chemistry,
Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masaya Hirano
- Department of Applied Chemistry,
Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry,
Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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22
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Wang H, Wang G, Li P. Iridium-catalyzed intermolecular directed dehydrogenative ortho C–H silylation. Org Chem Front 2017. [DOI: 10.1039/c7qo00340d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for iridium-catalyzed direct silylation of C(sp2)–H and C(sp3)–H bonds using HSiMe(OSiMe3)2 as the silylating reagent is described.
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Affiliation(s)
- Hong Wang
- Center for Organic Chemistry
- Frontier Institute of Science and Technology
- Xi'an Jiaotong University
- Xi'an 710054
- China
| | - Guanghui Wang
- Center for Organic Chemistry
- Frontier Institute of Science and Technology
- Xi'an Jiaotong University
- Xi'an 710054
- China
| | - Pengfei Li
- Center for Organic Chemistry
- Frontier Institute of Science and Technology
- Xi'an Jiaotong University
- Xi'an 710054
- China
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