1
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Chandrasekaran R, Selvam K, Rajeshkumar T, Chinnusamy T, Maron L, Rasappan R. Anti-Selective Carbosilylation: Nickel-Catalyzed Multicomponent Reaction of Solid Me 3SiZnI. Angew Chem Int Ed Engl 2024; 63:e202318689. [PMID: 38547324 DOI: 10.1002/anie.202318689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Indexed: 04/25/2024]
Abstract
The stereodefined and highly substituted vinylsilanes are essential building blocks for constructing complex organic molecules. Transition metal-mediated silylmetalation of alkynes was developed to overcome the limitations of conventional hydrosilylations; however, a very limited study was carried out to utilize transient vinylmetal species in cross-coupling reactions. Moreover, they produce syn-adduct, and the anti-selective cross-coupling is still unknown and highly desired. Silylzinc reagents are highly functional group tolerant, however, their synthesis from pyrophoric silyllithium and dissolved lithium salts hampers cross-coupling reactions. Our novel solid silylzinc reagents circumvent these constraints are employed in the anti-selective synthesis of vinylsilanes via a multi-component reaction involving Me3SiZnI, terminal alkynes, and activated alkyl halides. An intensive computational and experimental investigation of the mechanism reveals an equilibrium between the intermediate syn- and anti-adducts; the greater barrier at the single electron reduction of alkyl halides and the thermodynamic stability of the Ni(III) adduct determine the anti-selectivity.
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Affiliation(s)
- Revathi Chandrasekaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Keerthika Selvam
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Thayalan Rajeshkumar
- Laboratoire de Physique et Chimie des Nano-objets, Institut National des Sciences Appliquées, 31077, Toulouse, Cedex 4, France
| | - Tamilselvi Chinnusamy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Laurent Maron
- Laboratoire de Physique et Chimie des Nano-objets, Institut National des Sciences Appliquées, 31077, Toulouse, Cedex 4, France
| | - Ramesh Rasappan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
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2
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Karad SN, Saito H, Shimokawa J, Yorimitsu H. Regioselective Anti-Silyllithiation of Propargylic Alcohols. J Org Chem 2024; 89:3677-3683. [PMID: 36342367 DOI: 10.1021/acs.joc.2c01795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Among the known hydrosilylation or carbosilylation conditions of alkynes, anti-addition of the two units across the triple bond is considered rare compared to the syn counterpart. For anti-silylative vicinal difunctionalizations, transition-metal catalysts, such as ruthenium or palladium complexes, are generally required. Accordingly, silyl alkali metals have not been employed for those anti-addition transformations. Here we demonstrate that silyllithiums can add across the triple bond of a series of propargylic alkoxides regioselectively in an anti-fashion. Upon treatment with a variety of electrophiles, the trisubstituted alkenyl lithium intermediates were transformed into highly functionalized β-silyl allylic alcohols with high regiocontrol, eventually providing tri- or tetrasubstituted alkenylsilanes stereoselectively. A classic trick for anti-addition with propargylic alkoxides has transformed anti-silylative functionalizations into a robust and reliable strategy.
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Affiliation(s)
- Somnath N Karad
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hayate Saito
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Jun Shimokawa
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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3
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Huang C, Wu D, Li Y, Yin G. Asymmetric anti-Selective Borylalkylation of Terminal Alkynes by Nickel Catalysis. J Am Chem Soc 2023; 145:18722-18730. [PMID: 37582178 DOI: 10.1021/jacs.3c05969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Selective transformation of alkyne triple bonds to double bonds serves as an efficient platform to construct substituted alkenes. While significant advances have been made in its spatiotemporal regulation, achieving a multicomponent enantioselective reaction that requires multifaceted selectivity issues to be overcome is still uncommon. Here, we report an unprecedented asymmetric anti-stereoselective borylcarbofunctionalization of terminal alkynes by nickel catalysis. The utilization of an inexpensive chiral diamine ligand enables the three-component cross-coupling of terminal alkynes, a diboron reagent, and prochiral alkyl electrophiles with high levels of regio-, stereo-, and enantioselectivities. This reaction provides an efficient protocol to access enantioenriched alkenyl esters bearing an α-stereogenic center, is remarkably practical, and has a broad scope and an outstanding functional group compatibility. In addition, the value of this method has been highlighted in a diversity of follow-up stereoretentive derivatizations and the stereoselective concise synthesis of complex drug molecules.
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Affiliation(s)
- Chengmi Huang
- The Institute for Advanced Studies, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Dong Wu
- The Institute for Advanced Studies, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Yangyang Li
- The Institute for Advanced Studies, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Guoyin Yin
- The Institute for Advanced Studies, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
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4
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Zuo H, Klare HFT, Oestreich M. Intramolecular 7- endo- dig-Selective Carbosilylation of Internal Alkynes Involving Silylium-Ion Regeneration. J Org Chem 2023; 88:4024-4027. [PMID: 36881803 DOI: 10.1021/acs.joc.3c00261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
A catalytic silylium-ion-promoted intramolecular alkyne carbosilylation reaction is reported. The ring closure is initiated by electrophilic activation of the C-C triple bond by a silylium ion, and the catalytic cycle is then maintained by the protodesilylation of a stoichiometrically added allylsilane reagent. Exclusive 7-endo-dig selectivity is seen, leading to a series of silylated benzocycloheptene derivatives with a fully substituted vinylsilane. Control experiments showed that the catalytically active silylium ion can also be regenerated by protodesilylation of the vinylsilane product.
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Affiliation(s)
- Honghua Zuo
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
| | - Hendrik F T Klare
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
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5
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Pal PP, Ghosh S, Hajra A. Recent advances in carbosilylation of alkenes and alkynes. Org Biomol Chem 2023; 21:2272-2294. [PMID: 36852639 DOI: 10.1039/d3ob00230f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Alkene and alkyne difunctionalization is a flexible process that allows the construction of two functional groups simultaneously in one step. On the other hand, carbosilylation, an ingenious difunctionalization pathway to concurrently incorporate both a silyl group and an organic functional group (alkyl, (hetero)aryl, alkenyl, alkynyl and allenyl) across a carbon-carbon multiple-bond system, is achieving immense interest in recent days. This review article provides a decade's update on the discoveries and developments in the synthesis of carbosilylated products from two very important carbon-carbon unsaturated substrates, alkenes and alkynes.
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Affiliation(s)
- Prajna Paramita Pal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India.
| | - Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India.
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India.
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6
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Inagaki T, Ando T, Sakurai S, Yamanaka M, Tobisu M. Palladium-catalyzed addition of acylsilanes across alkynes via the activation of a C-Si bond. Chem Sci 2023; 14:2706-2712. [PMID: 36908943 PMCID: PMC9993849 DOI: 10.1039/d3sc00181d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023] Open
Abstract
Palladium-catalyzed addition of a C-Si bond in acylsilanes across the triple bonds in an alkyne bearing a carbonyl group at one terminal is reported. The reaction proceeds with excellent regioselectivity, in which a silyl group is incorporated into the carbon α to the carbonyl group, allowing for straightforward access to a variety of functionalized alkenylsilane derivatives. Catalytic synthesis of indanones by annulation between acylsilanes and alkynes with an identical catalytic system is also reported.
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Affiliation(s)
- Tetsuya Inagaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Osaka Japan
| | - Takahiro Ando
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Osaka Japan
| | - Shun Sakurai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Osaka Japan
| | - Masahiro Yamanaka
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University Nishi-Ikebukuro, Toshima-ku Tokyo 171-8501 Japan
| | - Mamoru Tobisu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Osaka Japan .,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI) Suita Osaka 565-0871 Japan
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7
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Pawley SB, Conner AM, Omer HM, Watson DA. Development of a General Method for the Hiyama-Denmark Cross-Coupling of Tetrasubstituted Vinyl Silanes. ACS Catal 2022; 12:13108-13115. [PMID: 36817085 PMCID: PMC9933925 DOI: 10.1021/acscatal.2c03981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
General conditions for the Hiyama-Denmark cross-coupling of tetrasubstituted vinyl silanes and aryl halides are reported. Prior reports of Hiyama-Denmark reactions of tetrasubstituted vinyl silanes have required the use of vinyl silanols or silanolates, which are challenging to handle, or internally activated vinyl silanes, which lack structural generality. Now, unactivated tetrasubstituted vinyl silanes, bearing bench-stable tetraorganosilicon centers, and aryl halides can be coupled. The key to this discovery is the identification of dimethyl(5-methylfuryl)vinylsilanes as bench stable and easily prepared cross-coupling partners that are readily activated under mild conditions in Hiyama-Denmark couplings. These palladium-catalyzed cross-couplings proceed well with aryl chlorides, though aryl bromides and iodides are also tolerated, and the reactions display high stereospecificity in the formation of tetrasubstituted alkenes. In addition, only a mild base (KOSiMe3) and common solvents (THF/DMA) are required, and importantly toxic additives (such as 18-crown-6) are not needed. We also show that these conditions are equally applicable to Hiyama-Denamrk coupling of trisubstituted vinyl silanes.
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Affiliation(s)
| | | | - Humair M. Omer
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
| | - Donald A. Watson
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
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8
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Inagaki T, Sakurai S, Yamanaka M, Tobisu M. Palladium-Catalyzed Silylacylation of Allenes Using Acylsilanes. Angew Chem Int Ed Engl 2022; 61:e202202387. [PMID: 35263006 DOI: 10.1002/anie.202202387] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Indexed: 12/20/2022]
Abstract
We have developed a palladium-catalyzed addition of a C-Si bond of acylsilanes across a range of unactivated allenes. The reaction proceeds with complete regioselectivity, in which a silyl group binds to the central carbon of the allene, allowing for the straightforward access to functionalized alkenylsilane derivatives.
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Affiliation(s)
- Tetsuya Inagaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Shun Sakurai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Masahiro Yamanaka
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan
| | - Mamoru Tobisu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
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9
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Inagaki T, Sakurai S, Yamanaka M, Tobisu M. Palladium‐Catalyzed Silylacylation of Allenes Using Acylsilanes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tetsuya Inagaki
- Department of Applied Chemistry Graduate School of Engineering Osaka University Suita, Osaka 565-0871 Japan
| | - Shun Sakurai
- Department of Applied Chemistry Graduate School of Engineering Osaka University Suita, Osaka 565-0871 Japan
| | - Masahiro Yamanaka
- Department of Chemistry and Research Center for Smart Molecules Faculty of Science Rikkyo University Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501 Japan
| | - Mamoru Tobisu
- Department of Applied Chemistry Graduate School of Engineering Osaka University Suita, Osaka 565-0871 Japan
- Innovative Catalysis Science Division Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI) Osaka University Suita, Osaka 565-0871 Japan
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10
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Pounder A, Tam W. Iron-catalyzed domino coupling reactions of π-systems. Beilstein J Org Chem 2021; 17:2848-2893. [PMID: 34956407 PMCID: PMC8685557 DOI: 10.3762/bjoc.17.196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/24/2021] [Indexed: 12/26/2022] Open
Abstract
The development of environmentally benign, inexpensive, and earth-abundant metal catalysts is desirable from both an ecological and economic standpoint. Certainly, in the past couple decades, iron has become a key player in the development of sustainable coupling chemistry and has become an indispensable tool in organic synthesis. Over the last ten years, organic chemistry has witnessed substantial improvements in efficient synthesis because of domino reactions. These protocols are more atom-economic, produce less waste, and demand less time compared to a classical stepwise reaction. Although iron-catalyzed domino reactions require a mindset that differs from the more routine noble-metal, homogenous iron catalysis they bear the chance to enable coupling reactions that rival that of noble-metal-catalysis. This review provides an overview of iron-catalyzed domino coupling reactions of π-systems. The classifications and reactivity paradigms examined should assist readers and provide guidance for the design of novel domino reactions.
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Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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11
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Chen Q, Li Z, Nishihara Y. Palladium/Copper-Cocatalyzed Arylsilylation of Internal Alkynes with Acyl Fluorides and Silylboranes: Synthesis of Tetrasubstituted Alkenylsilanes by Three-Component Coupling Reaction. Org Lett 2021; 24:385-389. [PMID: 34936358 DOI: 10.1021/acs.orglett.1c04060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this Letter, the palladium/copper-cocatalyzed arylsilylation of internal alkynes with acyl fluorides and silylboranes is described. This is the first example in which acyl fluorides have been utilized for the three-component coupling reaction via decarbonylation, yielding a variety of tetrasubstituted alkenylsilanes in moderate to good yields.
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Affiliation(s)
- Qiang Chen
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Zhenyao Li
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yasushi Nishihara
- Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
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12
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Ghosh S, Chakrabortty R, Ganesh V. Dual Functionalization of Alkynes Utilizing the Redox Characteristics of Transition Metal Catalysts. ChemCatChem 2021. [DOI: 10.1002/cctc.202100838] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sudipta Ghosh
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
| | - Rajesh Chakrabortty
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
| | - Venkataraman Ganesh
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
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13
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Yang LF, Wang QA, Li JH. Dual Palladium/Copper-Catalyzed anti-Selective Intermolecular Allenylsilylation of Terminal Alkynes: Entry to ( E)-Silyl Enallenes. Org Lett 2021; 23:6553-6557. [PMID: 34374538 DOI: 10.1021/acs.orglett.1c02364] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-/copper-cocatalyzed three-component trans-allenylsilylation of terminal alkynes with propargyl acetates and PhMe2SiBpin is described, which is driven by the regioselective allenylation of the alkyne with propargyl acetates and then silylation. This method allows the simultaneous incorporation of an allene and silicon across the C≡C bond and provides a highly chemo-, regio-, and stereoselective alkyne difunctionalization route to the synthesis of valuable (E)-silyl enallenes. The utility of this method is highlighted by late-stage derivatization of bioactive compounds.
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Affiliation(s)
- Liang-Feng Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, People's Republic of China.,Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
| | - Qiu-An Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, People's Republic of China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, People's Republic of China.,Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, People's Republic of China
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14
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Neogi S, Kumar Ghosh A, Mandal S, Ghosh D, Ghosh S, Hajra A. Three-Component Carbosilylation of Alkenes by Merging Iron and Visible-Light Photocatalysis. Org Lett 2021; 23:6510-6514. [PMID: 34379426 DOI: 10.1021/acs.orglett.1c02322] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mild, efficient, and one-pot protocol for three-component carbosilylation of alkenes with imidazoheterocycle and silanes has been developed by merging iron(II) and visible-light photocatalysis. This C-C and C-Si bond-forming method provides functionalized organosilicon derivatives having imidazoheterocycles moieties in good yields. The reaction possibly proceeds through a radical pathway.
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Affiliation(s)
- Sukanya Neogi
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Asim Kumar Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Saurodeep Mandal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Debashis Ghosh
- Department of Chemistry, St. Joseph's College (Autonomous), Bangalore 560027, India
| | - Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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15
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Li T, Wu Y, Duan W, Ma Y. Silylative aromatization of p-quinone methides under metal and solvent free conditions. RSC Adv 2021; 11:17860-17864. [PMID: 35480172 PMCID: PMC9033227 DOI: 10.1039/d1ra03193g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 05/12/2021] [Indexed: 11/30/2022] Open
Abstract
A base-mediated silylation reaction leading to benzyl silanes has been developed. Under transition-metal and solvent free conditions, the silylation of a wide array of p-quinone methides is achieved using a Cs2CO3 catalyst in yields up to 96%. Carboxylation of the as-obtained organosilane with gaseous CO2 provides a new synthetic protocol for the preparation of carboxylic acid. A novel and efficient synthetic protocol is reported for the synthesis of benzyl silanes from readily available silylborane and p-quinone methides using 5% cesium carbonate under solvent-free conditions.![]()
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Affiliation(s)
- Tingting Li
- Department of Chemistry, Shandong University Shanda South Road No. 27 Jinan 250100 P. R. China
| | - Yuzhu Wu
- Department of Chemistry, Shandong University Shanda South Road No. 27 Jinan 250100 P. R. China
| | - Wenzeng Duan
- School of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252000 P. R. China
| | - Yudao Ma
- Department of Chemistry, Shandong University Shanda South Road No. 27 Jinan 250100 P. R. China
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16
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Moniwa H, Shintani R. Copper-Catalyzed Synthesis of Tetrasubstituted Alkenes via Regio- and anti-Selective Addition of Silylboronates to Internal Alkynes. Chemistry 2021; 27:7512-7515. [PMID: 33769610 DOI: 10.1002/chem.202100933] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Indexed: 12/12/2022]
Abstract
As a new and complementary method for the synthesis of structurally defined tetrasubstituted alkenes, a copper-catalyzed regio- and anti-selective addition of silylboronates to unsymmetric internal alkynes has been developed. A variety of unactivated alkynes can be employed with high selectivity under simple and mild conditions, and the resulting products have been further functionalized by utilizing silyl and boryl groups on the alkene.
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Affiliation(s)
- Hirokazu Moniwa
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Ryo Shintani
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
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17
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Ohmura T, Takaoka Y, Suginome M. Copper-catalyzed regioselective trans-silaboration of internal arylalkynes with stereochemical switch to cis-addition mode. Chem Commun (Camb) 2021; 57:4670-4673. [PMID: 33978003 DOI: 10.1039/d1cc01579f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper-catalyzed silafunctionalization of alkynes using a silylboronic ester as a silicon source has recently progressed rapidly. Generally, the reaction affords a product with cis-stereoselectivity. We herein describe trans-selective 1,2-addition of silylboronic esters to internal arylalkynes, which was promoted efficiently by the CuOt-Bu/RCy2P/NaOt-Bu catalysts. Moreover, we report a stereochemical switch to cis-addition in the reactions of Me2(i-PrO)Si-B(pin) in hydrocarbon solvents including cyclohexane.
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Affiliation(s)
- Toshimichi Ohmura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura Nishikyo-ku Kyoto 615-8510, Japan.
| | - Yuta Takaoka
- 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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18
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Bis-silylation of internal alkynes enabled by Ni(0) catalysis. Nat Commun 2021; 12:68. [PMID: 33397974 PMCID: PMC7782505 DOI: 10.1038/s41467-020-20392-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/30/2020] [Indexed: 12/04/2022] Open
Abstract
1,2-Bis-silyl alkenes have exciting synthetic potential for programmable sequential synthesis via manipulation of the two vicinal silyl groups. Transition metal-catalyzed bis-silylation of alkynes with disilanes is the most straightforward strategy to access such useful building blocks. However, this process has some limitations: (1) symmetric disilanes are frequently employed in most of the reactions to assemble two identical silyl groups, which makes chemoselective differentiation for stepwise downstream transformations difficult; (2) the main catalysts are low-valent platinum group transition metal complexes, which are expensive; and (3) internal alkynes remain challenging substrates with low inherent reactivity. Thus, the development of abundant metal-catalyzed bis-silylation of internal alkynes with unsymmetrical disilanes is of significance. Herein, we solve most of the aforementioned limitations in bis-silylation of unsaturated bonds by developing a strongly coordinating disilane reagent and a Ni(0) catalytic system. Importantly, we sufficiently realize the stepwise recognition of the two silyl groups, making this synthetic protocol of wide potential utility. Bis-silylated alkenes offer the advantage of two functional handles with distinguished reactivity for downstream functionalization. Here, the authors report a nickel-catalyzed bis-silylation of internal alkynes to versatile silylated alkene intermediates which can be chemoselectively manipulated.
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Feng JJ, Mao W, Zhang L, Oestreich M. Activation of the Si–B interelement bond related to catalysis. Chem Soc Rev 2021; 50:2010-2073. [DOI: 10.1039/d0cs00965b] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Covering the past seven years, this review comprehensively summarises the latest progress in the preparation and application of Si–B reagents, including the discussion of relevant reaction mechanisms.
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Affiliation(s)
- Jian-Jun Feng
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
- College of Chemistry and Chemical Engineering
| | - Wenbin Mao
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Liangliang Zhang
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Martin Oestreich
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
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Zhang J, Wang S, Zhang Y, Feng Z. Iron‐Catalyzed Cross‐Coupling Reactions for the Construction of Carbon‐Heteroatom Bonds. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000334] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Juan Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University 55 Daxuecheng Road Chongqing 401331 China
| | - Siyu Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University 55 Daxuecheng Road Chongqing 401331 China
| | - Yun Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University 55 Daxuecheng Road Chongqing 401331 China
| | - Zhang Feng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences Chongqing University 55 Daxuecheng Road Chongqing 401331 China
- Sichuan Key Laboratory of Medical Imaging & Department of Chemistry School of Preclinical Medicine North Sichuan Medical College 234 Fujiang Road Nanchong Sichuan 637000 China
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Wisthoff MF, Pawley SB, Cinderella AP, Watson DA. Stereoselective Synthesis of Cis- and Trans-Tetrasubstituted Vinyl Silanes Using a Silyl-Heck Strategy and Hiyama Conditions for Their Cross-Coupling. J Am Chem Soc 2020; 142:12051-12055. [PMID: 32579845 DOI: 10.1021/jacs.0c05382] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a palladium-catalyzed, three-component carbosilylation reaction of internal symmetrical alkynes, silicon electrophiles, and primary alkyl zinc iodides. Depending on the choice of ligand, stereoselective synthesis of either cis- or trans-tetrasubstituted vinyl silanes is possible. We also demonstrate conditions for the Hiyama cross-coupling of these products to prepare geometrically defined tetrasubstituted alkenes.
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Affiliation(s)
- Michael F Wisthoff
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Sarah B Pawley
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Andrew P Cinderella
- 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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Jia J, Zeng X, Liu Z, Zhao L, He CY, Li XF, Feng Z. Iron-Catalyzed Silylation of (Hetero)aryl Chlorides with Et3SiBpin. Org Lett 2020; 22:2816-2821. [DOI: 10.1021/acs.orglett.0c00809] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jia Jia
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, P. R. China
| | - Xiaoqin Zeng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Zhengli Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Liang Zhao
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, P. R. China
| | - Chun-Yang He
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, P. R. China
| | - Xiao-Fei Li
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou 563003, P. R. China
| | - Zhang Feng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
- Sichuan Key Laboratory of Medical Imaging & Department of Chemistry, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, Sichuan 637000, P. R. China
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Zhang J, Zhang Y, Geng S, Chen S, Liu Z, Zeng X, He Y, Feng Z. C–O Bond Silylation Catalyzed by Iron: A General Method for the Construction of Csp2–Si Bonds. Org Lett 2020; 22:2669-2674. [DOI: 10.1021/acs.orglett.0c00633] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Juan Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Yun Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Shasha Geng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Shuo Chen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Zhengli Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Xiaoqin Zeng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Zhang Feng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
- Sichuan Key Laboratory of Medical Imaging & Department of Chemistry, School of Preclinical Medicine, North Sichuan Medical College, Nanchong, Sichuan 637000, China
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Duan XF. Iron catalyzed stereoselective alkene synthesis: a sustainable pathway. Chem Commun (Camb) 2020; 56:14937-14961. [DOI: 10.1039/d0cc04882h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Replacing expensive or toxic transition metals with iron has become an important trend. This article summarises the recent progresses of a wide range of Fe-catalyzed reactions for accessing various stereodefined alkenes.
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Abstract
![]()
Proper
choice of the base allowed trans-diboration
of propargyl alcohols with B2(pin)2 to evolve
into an exquisitely regioselective procedure for net trans-carboboration. The method is modular as to the newly introduced
carbon substituent (aryl, methyl, allyl, benzyl, alkynyl), which is
invariably placed distal to the −OH group.
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Affiliation(s)
- Hongming Jin
- Max-Planck-Institut für Kohlenforschung , 45470 Mülheim/Ruhr , Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung , 45470 Mülheim/Ruhr , Germany
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26
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Song T, Li H, Wei F, Tung CH, Xu Z. Gold/photoredox-cocatalyzed atom transfer thiosulfonylation of alkynes: Stereoselective synthesis of vinylsulfones. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.039] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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27
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Copper-catalyzed asymmetric silylative cyclization of cyclohexadienone-containing 1,6-enynes. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Tan Y, Jia S, Hu F, Liu Y, Peng L, Li D, Yan H. Enantioselective Construction of Vicinal Diaxial Styrenes and Multiaxis System via Organocatalysis. J Am Chem Soc 2018; 140:16893-16898. [DOI: 10.1021/jacs.8b09893] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yu Tan
- Chongqing Key Laboratory of Natural Product Synthesis
and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People’s Republic of China
| | - Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis
and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People’s Republic of China
| | - Fangli Hu
- Chongqing Key Laboratory of Natural Product Synthesis
and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People’s Republic of China
| | - Yidong Liu
- Chongqing Key Laboratory of Natural Product Synthesis
and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People’s Republic of China
| | - Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis
and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People’s Republic of China
| | - Dongmei Li
- Chongqing Key Laboratory of Natural Product Synthesis
and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People’s Republic of China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis
and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People’s Republic of China
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Liu L, Sun K, Su L, Dong J, Cheng L, Zhu X, Au CT, Zhou Y, Yin SF. Palladium-Catalyzed Regio- and Stereoselective Coupling–Addition of Propiolates with Arylsulfonyl Hydrazides: A Pattern for Difunctionalization of Alkynes. Org Lett 2018; 20:4023-4027. [DOI: 10.1021/acs.orglett.8b01585] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lixin Liu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Kang Sun
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Lebin Su
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jianyu Dong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Lei Cheng
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xiaodong Zhu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Chak-Tong Au
- College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Yongbo Zhou
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuang-Feng Yin
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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30
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Meng FF, Xie JH, Xu YH, Loh TP. Catalytically Asymmetric Synthesis of 1,3-Bis(silyl)propenes via Copper-Catalyzed Double Proto-Silylations of Polar Enynes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00999] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fei-Fan Meng
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jia-Hao Xie
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Teck-Peng Loh
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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