351
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Osińska M, Gniewek A, Trzeciak AM. Suzuki–Miyaura and Hiyama coupling catalyzed by PEPPSI-type complexes with non-bulky NHC ligand. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.03.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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352
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Jeevan Chakravarthy A, Krishnamurthy M, Begum NS, HariPrasad S. Synthesis of 1-trimethylsilyl-2-arylcyclohexenes: a new class of anionic synthons. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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353
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Hua Y, Asgari P, Avullala T, Jeon J. Catalytic Reductive ortho-C-H Silylation of Phenols with Traceless, Versatile Acetal Directing Groups and Synthetic Applications of Dioxasilines. J Am Chem Soc 2016; 138:7982-91. [PMID: 27265033 PMCID: PMC5103641 DOI: 10.1021/jacs.6b04018] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new, highly selective, bond functionalization strategy, achieved via relay of two transition metal catalysts and the use of traceless acetal directing groups, has been employed to provide facile formation of C-Si bonds and concomitant functionalization of a silicon group in a single vessel. Specifically, this approach involves the relay of Ir-catalyzed hydrosilylation of inexpensive and readily available phenyl acetates, exploiting disubstituted silyl synthons to afford silyl acetals and Rh-catalyzed ortho-C-H silylation to provide dioxasilines. A subsequent nucleophilic addition to silicon removes the acetal directing groups and directly provides unmasked phenol products and, thus, useful functional groups at silicon achieved in a single vessel. This traceless acetal directing group strategy for catalytic ortho-C-H silylation of phenols was also successfully applied to preparation of multisubstituted arenes. Remarkably, a new formal α-chloroacetyl directing group has been developed that allows catalytic reductive C-H silylation of sterically hindered phenols. In particular, this new method permits access to highly versatile and nicely differentiated 1,2,3-trisubstituted arenes that are difficult to access by other catalytic routes. In addition, the resulting dioxasilines can serve as chromatographically stable halosilane equivalents, which allow not only removal of acetal directing groups but also introduce useful functional groups leading to silicon-bridged biaryls. We demonstrated that this catalytic C-H bond silylation strategy has powerful synthetic potential by creating direct applications of dioxasilines to other important transformations, examples of which include aryne chemistry, Au-catalyzed direct arylation, sequential orthogonal cross-couplings, and late-stage silylation of phenolic bioactive molecules and BINOL scaffolds.
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Affiliation(s)
| | | | - Thirupataiah Avullala
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Junha Jeon
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
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354
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Song LJ, Ding S, Wang Y, Zhang X, Wu YD, Sun J. Ir-Catalyzed Regio- and Stereoselective Hydrosilylation of Internal Thioalkynes: A Combined Experimental and Computational Study. J Org Chem 2016; 81:6157-64. [DOI: 10.1021/acs.joc.6b00854] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Li-Juan Song
- Lab
of Computational Chemistry and Drug Design, Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Shengtao Ding
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Yong Wang
- HKUST Shenzhen Research Institute, Shenzhen 518057, China
| | - Xinhao Zhang
- Lab
of Computational Chemistry and Drug Design, Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yun-Dong Wu
- Lab
of Computational Chemistry and Drug Design, Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Jianwei Sun
- Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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355
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Edwin Raja GC, Irudayanathan FM, Kim HS, Kim J, Lee S. Nickel-Catalyzed Hiyama-type Decarboxylative Coupling of Propiolic Acids and Organosilanes. J Org Chem 2016; 81:5244-9. [DOI: 10.1021/acs.joc.6b00883] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Han-Sung Kim
- Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jimin Kim
- Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
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356
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Yuen OY, So CM, Man HW, Kwong FY. A General Palladium-Catalyzed Hiyama Cross-Coupling Reaction of Aryl and Heteroaryl Chlorides. Chemistry 2016; 22:6471-6. [PMID: 26998586 DOI: 10.1002/chem.201600420] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Indexed: 11/06/2022]
Abstract
A general palladium-catalyzed Hiyama cross-coupling reaction of aryl and heteroaryl chlorides with aryl and heteroaryl trialkoxysilanes by a Pd(OAc)2 /L2 catalytic system is presented. A newly developed water addition protocol can dramatically improve the product yields. The conjugation of the Pd/L2 system and the water addition protocol can efficiently catalyze a broad range of electron-rich, -neutral, -deficient, and sterically hindered aryl chlorides and heteroaryl chlorides with excellent yields within three hours and the catalyst loading can be down to 0.05 mol % Pd for the first time. Hiyama coupling of heteroaryl chlorides with heteroaryl silanes is also reported for the first time. The reaction can be easily scaled up 200 times (100 mmol) without any degasification and purification of reactants; this facilitates the practical application in routine synthesis.
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Affiliation(s)
- On Ying Yuen
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. of China.,The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI), Shenzhen, P. R. of China
| | - Chau Ming So
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. of China. .,The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI), Shenzhen, P. R. of China.
| | - Ho Wing Man
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. of China
| | - Fuk Yee Kwong
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. of China. .,The Hong Kong Polytechnic University Shenzhen Research Institute (SZRI), Shenzhen, P. R. of China.
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357
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Pashikanti S, Calderone JA, Nguyen MK, Sibley CD, Santos WL. Regio- and Stereoselective Copper(II)-Catalyzed Hydrosilylation of Activated Allenes in Water: Access to Vinylsilanes. Org Lett 2016; 18:2443-6. [DOI: 10.1021/acs.orglett.6b00981] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Srinath Pashikanti
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Joseph A. Calderone
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Matthew K. Nguyen
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | | | - Webster L. Santos
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
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358
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Chang S, Jin Y, Zhang XR, Sun YB. Carbonylative Hiyama coupling of aryl halides with arylsilanes under balloon pressure of CO. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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359
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Pan F, Wu B, Shi ZJ. Cu-Catalyzed Intramolecular Amidation of Unactivated C(sp(3) )-H Bonds To Synthesize N-Substituted Indolines. Chemistry 2016; 22:6487-90. [PMID: 26945702 DOI: 10.1002/chem.201600680] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Indexed: 01/21/2023]
Abstract
A copper-catalyzed intramolecular amidation of unactivated C(sp(3) )-H bonds to construct indoline derivatives has been developed. Such an amidation proceeded well at primary C-H bonds preferred to secondary C-H bonds. The transformation owned a broad substrate scope. The corresponding indolines were obtained in good to excellent yields. N-Formal and other carbonyl groups were suitable and were easily deprotected and transformed into methyl or long-chained alkyl groups. Preliminary mechanistic studies suggested a radical pathway.
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Affiliation(s)
- Fei Pan
- Beijing National Laboratory of Molecular Science (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Bin Wu
- Beijing National Laboratory of Molecular Science (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Zhang-Jie Shi
- Beijing National Laboratory of Molecular Science (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China. .,State Key Laboratory of Organometallic Chemistry, CAS, Shanghai, 200032, P. R. China.
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360
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Lu XY, Liu JH, Lu X, Zhang ZQ, Gong TJ, Xiao B, Fu Y. 1,1-Disubstituted olefin synthesis via Ni-catalyzed Markovnikov hydroalkylation of alkynes with alkyl halides. Chem Commun (Camb) 2016; 52:5324-7. [PMID: 27001942 DOI: 10.1039/c6cc00176a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ni-catalyzed Markovnikov hydroalkylation of alkynes with alkyl halides is described. The reaction proceeds smoothly without the use of sensitive organometallic reagents and shows good functional-group compatibility, enabling the efficient synthesis of a variety of 1,1-disubstituted olefins. It also provides a straightforward approach for the modification of complex organic molecules.
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Affiliation(s)
- Xiao-Yu Lu
- Hefei National Laboratory for Physical Sciences at the Microscale, iChEM, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China.
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361
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Qiao Z, Jiang X. Ligand-Controlled Divergent Cross-Coupling Involving Organosilicon Compounds for Thioether and Thioester Synthesis. Org Lett 2016; 18:1550-3. [DOI: 10.1021/acs.orglett.6b00324] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Zongjun Qiao
- Shanghai
Key Laboratory of Green Chemistry and Chemical Process, School of
Chemistry and Molecular Engineering, East China Normal University, 3663N Zhongshan Road, Shanghai 200062, P. R. China
| | - Xuefeng Jiang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Process, School of
Chemistry and Molecular Engineering, East China Normal University, 3663N Zhongshan Road, Shanghai 200062, P. R. China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
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362
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Li W, Huang X, You J. Ruthenium-Catalyzed Intermolecular Direct Silylation of Unreactive C(sp(3))-H Bonds. Org Lett 2016; 18:666-8. [PMID: 26847326 DOI: 10.1021/acs.orglett.5b03593] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Ru-catalyzed intermolecular silylation of unreactive, aliphatic C(sp(3))-H bonds has been described for the first time. This protocol features low catalyst loading, a relatively broad substrate spectrum, good functional group tolerance, and no sensitivity to air, which provides a convenient and practical pathway for the construction of C-Si bonds.
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Affiliation(s)
- Wei Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Xiaolei Huang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, P. R. China
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363
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Struk Ł, Sośnicki JG, Idzik TJ, Maciejewska G. Sequential Synthesis of Organosilicon-Linked 2-Methoxypyridines by Non-Cryogenicortho-Metallation Using thenBu2TMPMg·Li Reagent and Hydrosilylation. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501570] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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364
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Martinez-Solorio D, Melillo B, Sanchez L, Liang Y, Lam E, Houk KN, Smith AB. Design, Synthesis, and Validation of an Effective, Reusable Silicon-Based Transfer Agent for Room-Temperature Pd-Catalyzed Cross-Coupling Reactions of Aryl and Heteroaryl Chlorides with Readily Available Aryl Lithium Reagents. J Am Chem Soc 2016; 138:1836-9. [PMID: 26835838 DOI: 10.1021/jacs.5b13260] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A reusable silicon-based transfer agent (1) has been designed, synthesized, and validated for effective room-temperature palladium-catalyzed cross-coupling reactions (CCRs) of aryl and heteroaryl chlorides with readily accessible aryl lithium reagents. The crystalline, bench-stable siloxane transfer agent (1) is easily prepared via a one-step protocol. Importantly, this "green" CCR protocol circumvents prefunctionalization, isolation of organometallic cross-coupling partners, and/or stoichiometric waste aside from LiCl. DFT calculations support a σ-bond metathesis mechanism during transmetalation and lead to insights on the importance of the CF3 groups.
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Affiliation(s)
- Dionicio Martinez-Solorio
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Bruno Melillo
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Luis Sanchez
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Yong Liang
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
| | - Erwin Lam
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
| | - Amos B Smith
- Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
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365
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Lee KS, Katsoulis D, Choi J. Intermolecular C–H Silylation of Arenes and Heteroarenes with HSiEt3 under Operationally Diverse Conditions: Neat/Stoichiometric and Acceptor/Acceptorless. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02806] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kang-sang Lee
- Dow Corning Corporation, 2200 West Salzburg Road, Auburn, Michigan 48611, United States
| | - Dimitris Katsoulis
- Dow Corning Corporation, 2200 West Salzburg Road, Auburn, Michigan 48611, United States
| | - Jongwook Choi
- Dow Corning Corporation, 2200 West Salzburg Road, Auburn, Michigan 48611, United States
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366
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Shrestha B, Thapa S, Gurung SK, Pike RAS, Giri R. General Copper-Catalyzed Coupling of Alkyl-, Aryl-, and Alkynylaluminum Reagents with Organohalides. J Org Chem 2016; 81:787-802. [DOI: 10.1021/acs.joc.5b02077] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Bijay Shrestha
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Surendra Thapa
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Santosh K. Gurung
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Ryan A. S. Pike
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Ramesh Giri
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
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367
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Kameo H, Kawamoto T, Sakaki S, Bourissou D, Nakazawa H. Transition-Metal-Mediated Cleavage of Fluoro-Silanes under Mild Conditions. Chemistry 2016; 22:2370-5. [DOI: 10.1002/chem.201504455] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Indexed: 01/06/2023]
Affiliation(s)
- Hajime Kameo
- Department of Chemistry; Graduate School of Science; Osaka Prefecture University; Gakuen-cho 1-1, Naka-ku, Sakai Osaka 599-8531 Japan
| | - Tatsuya Kawamoto
- Department of Chemistry; Graduate School of Science; Osaka City University; Sugimoto 3-3-138, Sumiyoshi-ku Osaka 558-8585 Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry; Kyoto University, Takano-nishihiraki-cho 34-4, Sakyo-ku; Kyoto 606-8103 Japan
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée; Universit Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Hiroshi Nakazawa
- Department of Chemistry; Graduate School of Science; Osaka City University; Sugimoto 3-3-138, Sumiyoshi-ku Osaka 558-8585 Japan
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368
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Shrestha B, Giri R. Copper-catalyzed arylation of alkyl halides with arylaluminum reagents. Beilstein J Org Chem 2016; 11:2400-7. [PMID: 26734088 PMCID: PMC4685909 DOI: 10.3762/bjoc.11.261] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 11/12/2015] [Indexed: 12/21/2022] Open
Abstract
We report a Cu-catalyzed coupling between triarylaluminum reagents and alkyl halides to form arylalkanes. The reaction proceeds in the presence of N,N,N',N'-tetramethyl-o-phenylenediamine (NN-1) as a ligand in combination with CuI as a catalyst. This catalyst system enables the coupling of primary alkyl iodides and bromides with electron-neutral and electron-rich triarylaluminum reagents and affords the cross-coupled products in good to excellent yields.
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Affiliation(s)
- Bijay Shrestha
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, NM 87131, USA
| | - Ramesh Giri
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, NM 87131, USA
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369
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Segura JL, Mancheño MJ, Zamora F. Covalent organic frameworks based on Schiff-base chemistry: synthesis, properties and potential applications. Chem Soc Rev 2016; 45:5635-5671. [DOI: 10.1039/c5cs00878f] [Citation(s) in RCA: 790] [Impact Index Per Article: 98.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Covalent organic-frameworks (COFs) are an emerging class of porous and ordered materials formed by condensation reactions of organic molecules.
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Affiliation(s)
- José L. Segura
- Departamento de Química Orgánica
- Facultad de Química
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - María J. Mancheño
- Departamento de Química Orgánica
- Facultad de Química
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - Félix Zamora
- Departamento de Química Inorgánica and Condensed Matter Physics Center (IFMAC)
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia)
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370
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Ma J, Harms K, Meggers E. Enantioselective rhodium/ruthenium photoredox catalysis en route to chiral 1,2-aminoalcohols. Chem Commun (Camb) 2016; 52:10183-6. [DOI: 10.1039/c6cc04397f] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A visible-light-induced enantioselective redox coupling of α-silylalkylamines with 2-acyl imidazoles is catalyzed by a combination of a chiral Rh Lewis acid and a Ru photoredox sensitizer.
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Affiliation(s)
- Jiajia Ma
- Philipps-Universität Marburg
- 35043 Marburg
- Germany
| | - Klaus Harms
- Philipps-Universität Marburg
- 35043 Marburg
- Germany
| | - Eric Meggers
- Philipps-Universität Marburg
- 35043 Marburg
- Germany
- College of Chemistry and Chemical Engineering
- Xiamen University
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371
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Cai G, Huang Y, Du T, Zhang S, Yao B, Li X. Palladium-catalyzed C(sp3)–C(sp2) cross-coupling of homoleptic rare-earth metal trialkyl complexes with aryl bromides: efficient synthesis of functionalized benzyltrimethylsilanes. Chem Commun (Camb) 2016; 52:5425-7. [DOI: 10.1039/c6cc01312k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first C(sp3)–C(sp2) cross-coupling of rare-earth metal alkyl complexes with aryl bromides has been developed for an efficient synthesis of benzyltrimethylsilanes with diverse functional groups.
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Affiliation(s)
- Guilong Cai
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Yingda Huang
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Tingting Du
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Bo Yao
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
- China
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372
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Devaraj K, Sollert C, Juds C, Gates PJ, Pilarski LT. Ru-catalysed C–H silylation of unprotected gramines, tryptamines and their congeners. Chem Commun (Camb) 2016; 52:5868-71. [DOI: 10.1039/c6cc00803h] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Directed and undirected Ru-catalysed C–H silylation of unprotected heteroarenes is presented which requires no protecting groups.
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Affiliation(s)
- K. Devaraj
- Department of Chemistry – BMC
- Uppsala University
- Uppsala
- Sweden
| | - C. Sollert
- Department of Chemistry – BMC
- Uppsala University
- Uppsala
- Sweden
| | - C. Juds
- Department of Chemistry – BMC
- Uppsala University
- Uppsala
- Sweden
| | - P. J. Gates
- School of Chemistry
- University of Bristol
- Cantock's Close
- Bristol
- UK
| | - L. T. Pilarski
- Department of Chemistry – BMC
- Uppsala University
- Uppsala
- Sweden
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373
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Gu J, Cai C. Stereoselective synthesis of vinylsilanes via copper-catalyzed silylation of alkenes with silanes. Chem Commun (Camb) 2016; 52:10779-82. [DOI: 10.1039/c6cc05509e] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient and stereoselective synthesis of vinylsilanes via copper-catalyzed direct silylation of alkenes with silanes was developed.
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Affiliation(s)
- Jian Gu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- People's Republic of China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing
- People's Republic of China
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374
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Pan JL, Li QZ, Zhang TY, Hou SH, Kang JC, Zhang SY. Palladium-catalyzed direct intermolecular silylation of remote unactivated C(sp3)–H bonds. Chem Commun (Camb) 2016; 52:13151-13154. [DOI: 10.1039/c6cc07885k] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and convenient method has been developed to achieve direct silylation of unactivated remote primary or secondary C(sp3)–H bonds to form C–Si bonds with hexamethyldisilane (HMDS).
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Affiliation(s)
- Jin-Long Pan
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Quan-Zhe Li
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Ting-Yu Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Si-Hua Hou
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Jun-Cheng Kang
- Zhiyuan College
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Shu-Yu Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
- Key Laboratory for Thin Film and Microfabrication of Ministry of Education
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375
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Majchrzak M, Grzelak M, Marciniec B. Synthesis of novel styryl-N-isopropyl-9H-carbazoles for designing trans-conjugated regular silicon hybrid materials. Org Biomol Chem 2016; 14:9406-9415. [DOI: 10.1039/c6ob01560c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and practical method for the synthesis of novel styryl-carbazoles and their catalytic functionalization by vinylsilanes to organic-silicon compounds.
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Affiliation(s)
- Mariusz Majchrzak
- Faculty of Chemistry
- Department of Organometallic Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznan
- Poland
| | - Magdalena Grzelak
- Faculty of Chemistry
- Department of Organometallic Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznan
- Poland
| | - Bogdan Marciniec
- Faculty of Chemistry
- Department of Organometallic Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznan
- Poland
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376
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Munoz SB, Aloia AN, Moore AK, Papp A, Mathew T, Fustero S, Olah GA, Surya Prakash GK. Synthesis of 3-substituted isoindolin-1-ones via a tandem desilylation, cross-coupling, hydroamidation sequence under aqueous phase-transfer conditions. Org Biomol Chem 2016; 14:85-92. [DOI: 10.1039/c5ob02187a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Reports the synthesis of 3-methylene-isoindolin-1-ones 4 under aqueous phase-transfer conditions.
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Affiliation(s)
- Socrates B. Munoz
- Loker Hydrocarbon Research Institute and Department of Chemistry
- University of Southern California
- Los Angeles
- USA
| | - Alexandra N. Aloia
- Loker Hydrocarbon Research Institute and Department of Chemistry
- University of Southern California
- Los Angeles
- USA
| | - Alexander K. Moore
- Loker Hydrocarbon Research Institute and Department of Chemistry
- University of Southern California
- Los Angeles
- USA
| | - Attila Papp
- Loker Hydrocarbon Research Institute and Department of Chemistry
- University of Southern California
- Los Angeles
- USA
| | - Thomas Mathew
- Loker Hydrocarbon Research Institute and Department of Chemistry
- University of Southern California
- Los Angeles
- USA
| | - Santos Fustero
- Departamento de Quimica Organica
- Universidad de Valencia and Laboratorio de Moleculas Organicas
- E-46012 Valencia
- Spain
| | - George A. Olah
- Loker Hydrocarbon Research Institute and Department of Chemistry
- University of Southern California
- Los Angeles
- USA
| | - G. K. Surya Prakash
- Loker Hydrocarbon Research Institute and Department of Chemistry
- University of Southern California
- Los Angeles
- USA
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377
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Luo H, Liu H, Zhang Z, Xiao Y, Wang S, Luo X, Wang K. Direct and site-selective Pd(ii)-catalyzed C-7 arylation of indolines with arylsilanes. RSC Adv 2016. [DOI: 10.1039/c6ra06915k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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378
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Li E, Zhou H, Östlund V, Hertzberg R, Moberg C. Regio- and stereoselective synthesis of conjugated trienes from silaborated 1,3-enynes. NEW J CHEM 2016. [DOI: 10.1039/c6nj01019a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium-catalyzed silaboration of 1,3-enynes followed by Suzuki–Miyaura coupling with alkenyl iodides and Hiyama coupling with aryl iodides provides access to 1,3,5-trienes with defined regio- and stereochemistry.
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Affiliation(s)
- Ende Li
- KTH Royal Institute of Technology
- Department of Chemistry
- Organic Chemistry
- SE 10044 Stockholm
- Sweden
| | - Hui Zhou
- KTH Royal Institute of Technology
- Department of Chemistry
- Organic Chemistry
- SE 10044 Stockholm
- Sweden
| | - Victor Östlund
- KTH Royal Institute of Technology
- Department of Chemistry
- Organic Chemistry
- SE 10044 Stockholm
- Sweden
| | - Robin Hertzberg
- KTH Royal Institute of Technology
- Department of Chemistry
- Organic Chemistry
- SE 10044 Stockholm
- Sweden
| | - Christina Moberg
- KTH Royal Institute of Technology
- Department of Chemistry
- Organic Chemistry
- SE 10044 Stockholm
- Sweden
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379
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1-(Triethoxysilyl)buta-1,3-dienes-New Building Blocks for Stereoselective Synthesis of Unsymmetrical ( E, E)-1,4-Disubstituted 1,3-dienes. MATERIALS 2015; 8:7250-7256. [PMID: 28793635 PMCID: PMC5458880 DOI: 10.3390/ma8115378] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 10/14/2015] [Indexed: 11/28/2022]
Abstract
A convenient methodology for the highly stereoselective synthesis of unsymmetrical (1E,3E)-1,4-disubstituted 1,3-dienes based on palladium-catalyzed Hiyama cross-coupling reaction of 1-(triethoxysilyl)-substituted buta-1,3-dienes with aryl iodides is reported.
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380
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Vila C, Cembellín S, Hornillos V, Giannerini M, Fañanás-Mastral M, Feringa BL. tBuLi-Mediated One-Pot Direct Highly Selective Cross-Coupling of Two Distinct Aryl Bromides. Chemistry 2015; 21:15520-4. [PMID: 26356873 DOI: 10.1002/chem.201502709] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Indexed: 11/06/2022]
Abstract
A Pd-catalyzed direct cross-coupling of two distinct aryl bromides mediated by tBuLi is described. The use of [Pd-PEPPSI-IPr] or [Pd-PEPPSI-IPent] as catalyst allows for the efficient one-pot synthesis of unsymmetrical biaryls at room temperature. The key for this selective cross-coupling is the use of an ortho-substituted bromide that undergoes lithium-halogen exchange preferentially.
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Affiliation(s)
- Carlos Vila
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands), Fax: (+31) 50-363-4278.,Present address: Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València (Spain)
| | - Sara Cembellín
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands), Fax: (+31) 50-363-4278
| | - Valentín Hornillos
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands), Fax: (+31) 50-363-4278
| | - Massimo Giannerini
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands), Fax: (+31) 50-363-4278
| | - Martín Fañanás-Mastral
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands), Fax: (+31) 50-363-4278.,Present address: Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, 15782 Santiago de Compostela (Spain)
| | - Ben L Feringa
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands), Fax: (+31) 50-363-4278.
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381
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Kumar A, Shah BA. Synthesis of Biaryls via Benzylic C–C Bond Cleavage of Styrenes and Benzyl Alcohols. Org Lett 2015; 17:5232-5. [DOI: 10.1021/acs.orglett.5b02578] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Arvind Kumar
- Academy of Scientific
and Innovative Research and Natural
Product Microbes, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-Tawi 180001, India
| | - Bhahwal Ali Shah
- Academy of Scientific
and Innovative Research and Natural
Product Microbes, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-Tawi 180001, India
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382
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Minami Y, Komiyama T, Shimizu K, Hiyama T, Goto O, Ikehira H. Catalytic Carbon–Nitrogen Bond-Forming Cross-Coupling Using N-Trimethylsilylamines. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150179] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yasunori Minami
- Research and Development Initiative, Chuo University
- JST, ACT-C
| | | | - Kenta Shimizu
- Graduate School of Science and Engineering, Chuo University
| | - Tamejiro Hiyama
- Research and Development Initiative, Chuo University
- JST, ACT-C
| | - Osamu Goto
- Tsukuba Research Laboratory, Sumitomo Chemical
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383
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Dierick S, Vercruysse E, Berthon-Gelloz G, Markó IE. User-Friendly Platinum Catalysts for the Highly Stereoselective Hydrosilylation of Alkynes and Alkenes. Chemistry 2015; 21:17073-8. [DOI: 10.1002/chem.201502643] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Indexed: 11/08/2022]
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384
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Liu Q, Dong X, Li J, Xiao J, Dong Y, Liu H. Recent Advances on Palladium Radical Involved Reactions. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01469] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Qing Liu
- School
of Chemical Engineering, Shandong University of Technology, 266 West
Xincun Road, Zibo 255049, P. R. China
| | - Xu Dong
- School
of Chemical Engineering, Shandong University of Technology, 266 West
Xincun Road, Zibo 255049, P. R. China
| | - Jun Li
- School
of Chemical Engineering, Shandong University of Technology, 266 West
Xincun Road, Zibo 255049, P. R. China
| | - Jian Xiao
- College
of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, 700 Changcheng Road, Qingdao 266109, P. R. China
| | - Yunhui Dong
- School
of Chemical Engineering, Shandong University of Technology, 266 West
Xincun Road, Zibo 255049, P. R. China
| | - Hui Liu
- School
of Chemical Engineering, Shandong University of Technology, 266 West
Xincun Road, Zibo 255049, P. R. China
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385
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Kaur N. Palladium-Catalyzed Approach to the Synthesis ofS-heterocycles. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2015. [DOI: 10.1080/01614940.2015.1082824] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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386
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Pd- and Ni-Pyridyl Complexes Deposited as Films for Suzuki–Miyaura and Mizoroki–Heck Cross Coupling Reactions. Catal Letters 2015. [DOI: 10.1007/s10562-015-1614-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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387
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Kumar R, Hoshimoto Y, Yabuki H, Ohashi M, Ogoshi S. Nickel(0)-Catalyzed Enantio- and Diastereoselective Synthesis of Benzoxasiloles: Ligand-Controlled Switching from Inter- to Intramolecular Aryl-Transfer Process. J Am Chem Soc 2015; 137:11838-45. [DOI: 10.1021/jacs.5b07827] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
| | | | | | | | - Sensuke Ogoshi
- Advanced
Catalytic Transformation Program for Carbon Utilization (ACT-C), Japan Science and Technology Agency (JST), Suita, Osaka 565-0871, Japan
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388
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389
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Sattler W, Ruccolo S, Rostami Chaijan M, Nasr Allah T, Parkin G. Hydrosilylation of Aldehydes and Ketones Catalyzed by a Terminal Zinc Hydride Complex, [κ3-Tptm]ZnH. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00506] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Wesley Sattler
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | - Serge Ruccolo
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | | | - Tawfiq Nasr Allah
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
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390
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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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391
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Roy D, Maekawa H, Murai M, Takai K. Short Synthesis of [5]- and [7]Phenacenes with Silyl Groups at the Axis Positions. Chem Asian J 2015. [DOI: 10.1002/asia.201500700] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David Roy
- Division of Applied Chemistry; Graduate School of Natural Science and Technology, Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Hiroyuki Maekawa
- Division of Applied Chemistry; Graduate School of Natural Science and Technology, Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Masahito Murai
- Division of Applied Chemistry; Graduate School of Natural Science and Technology, Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry; Graduate School of Natural Science and Technology, Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
- ACT-C (Japan) Science and Technology Agency; 4-1-8 Honcho, Kawaguchi Saitama 332-0012 Japan
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392
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Minami Y, Komiyama T, Hiyama T. Straightforward Synthesis of HOMSi Reagents via sp2 C–H Silylation. CHEM LETT 2015. [DOI: 10.1246/cl.150359] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yasunori Minami
- Research and Development Initiative, Chuo University
- ACT-C, JST
| | | | - Tamejiro Hiyama
- Research and Development Initiative, Chuo University
- ACT-C, JST
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393
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Kanno Y, Komuro T, Tobita H. Direct Conversion of a Si–C(aryl) Bond to Si–Heteroatom Bonds in the Reactions of η3-α-Silabenzyl Molybdenum and Tungsten Complexes with 2-Substituted Pyridines. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00335] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuto Kanno
- Department
of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Takashi Komuro
- Department
of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Hiromi Tobita
- Department
of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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394
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McAtee JR, Krause SB, Watson DA. Simplified Preparation of Trialkylvinylsilanes via the Silyl-Heck Reaction Utilizing a Second Generation Catalyst. Adv Synth Catal 2015; 357:2317-2321. [PMID: 27325912 DOI: 10.1002/adsc.201500436] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Recently we reported a second-generation ligand, bis(3,5-di-tert-butylphenyl)(tert-butyl)phosphine, for the preparation of allyl silanes using the silyl-Heck reaction. We now show that this new ligand also provides superior reactivity in the preparation of vinylsilanes from styrene derivatives. For the first time, this new ligand provides exceptionally high yields of trialkylvinylsilanes using a widely available palladium pre-catalyst, Pd2(dba)3. Finally, we demonstrate that this new catalyst system is able to form more highly decorated all carbon substituted vinylsilanes that have been shown to possess superior reactivity in oxidation and cross coupling reactions.
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Affiliation(s)
- Jesse R McAtee
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
| | - Sarah B Krause
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
| | - Donald A Watson
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
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395
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Sproul KC, Chalifoux WA. Highly Regio- and Diastereoselective Formation of Tetrasubstituted (Z)-1,2-Dihaloalkenes from the Halogenation of Trimethylsilyl Alkynes with ICl. Org Lett 2015; 17:3334-7. [DOI: 10.1021/acs.orglett.5b01558] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kyle C. Sproul
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
| | - Wesley A. Chalifoux
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
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396
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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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397
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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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398
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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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399
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Li Z, Xu X, Zhang X. Oxidation of organosilanes with nanoporous copper as a sustainable non-noble-metal catalyst. Chemphyschem 2015; 16:1603-6. [PMID: 25808282 DOI: 10.1002/cphc.201500111] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Indexed: 11/06/2022]
Abstract
Although many noble-metal catalysts have been used for the oxidation of organosilanes, there has been less success with non-noble-metal catalysts. Here, unsupported nanoporous copper (np-Cu) is used to catalyze the oxidation of organosilanes under mild conditions. It is the first time that this reaction has been achieved with a heterogeneous copper catalyst with high activity and selectivity. Both water and alcohols are used as oxidants and the corresponding organosilanols and organosilyl ethers are obtained in high yield. The possible mechanism was obtained by kinetic studies. The catalyst could be reused at least five times without evident loss of activity. As a novel green catalyst np-Cu should play a unique role in organic synthesis.
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Affiliation(s)
- Zhiwen Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (China)
| | - Xiaohong Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (China)
| | - Xiaomei Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 (China).
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400
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Wang H, Qiao H, Zhang H, Yang H, Zhao Y, Fu H. Rhodium-Catalyzed Hydrosilylation Reaction ofN-Sulfonyl-1,2,3-triazoles with Triphenylsilane: Access to Diverse Compounds. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500455] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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