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Pawar RB, Karmur MH, Punji B. Ligand-free MnBr 2-Catalyzed Chemo- and Stereoselective Hydroboration of Terminal Alkynes. Chem Asian J 2024; 19:e202400158. [PMID: 38512720 DOI: 10.1002/asia.202400158] [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: 02/14/2024] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 03/23/2024]
Abstract
Developing simple and benign protocols for synthesizing alkenylboronates is crucial as they are synthetically valuable compounds in various organic transformations. In this work, we report a straightforward ligand-free protocol for synthesizing alkenylboronates via atom-economical hydroboration of alkynes with HBpin catalyzed by a manganese salt. The reaction shows a high level of chemo and regioselectivity for the terminal alkynes and exclusively produces E-selective alkenylboronates. The hydroboration scope is vast, with the resilience of a range of synthetically beneficial functionalities, such as halides, ether, alkenyl, silyl and thiophenyl groups. This reaction proceeds through the involvement of a metal-hydride intermediate. The developed alkenylboronate can be smoothly converted to useful C-C, C-N and C-I bond-forming reactions.
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Affiliation(s)
- Rameshwar B Pawar
- Organometallic Synthesis and Catalysis Lab, Organic Chemistry Division, CSIR - National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India Ph
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
| | - Mital H Karmur
- Organometallic Synthesis and Catalysis Lab, Organic Chemistry Division, CSIR - National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India Ph
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab, Organic Chemistry Division, CSIR - National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India Ph
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
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2
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Klootwyk BM, Ruble JC, Cumming GR, Woerly EM. Catalytic 2-Ethylhexanoic Acid Promotes Mild Miyaura Borylations. J Org Chem 2024; 89:5901-5904. [PMID: 38567761 DOI: 10.1021/acs.joc.4c00280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The Miyaura borylation of aryl and heteroaryl chlorides and bromides using a combination of potassium carbonate and 5 mol % 2-ethylhexanoic acid at 25 °C is reported. The in situ generation of a catalytic amount of potassium 2-ethylhexanoate under these conditions avoids the need for special handling of stoichiometric quantities of hygroscopic potassium 2-ethylhexanoate during the reaction setup as well as difficulties in removing the resulting carboxylic acid during product isolation.
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Affiliation(s)
- Brittany M Klootwyk
- Discovery Chemistry Research and Technologies, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - J Craig Ruble
- Discovery Chemistry Research and Technologies, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - Graham R Cumming
- Discovery Chemistry Research and Technologies, Lilly Research Laboratories, Eli Lilly and Company, Alcobendas, Madrid 28108, Spain
| | - Eric M Woerly
- Discovery Chemistry Research and Technologies, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
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3
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Audsley G, Carpentier A, Pécharman AF, Wright J, Roseveare TM, Clark ER, Macgregor SA, Riddlestone IM. Contrasting reactivity of B-Cl and B-H bonds at [Ni(IMes) 2] to form unsupported Ni-boryls. Chem Commun (Camb) 2024; 60:874-877. [PMID: 38164828 DOI: 10.1039/d3cc05369e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
[Ni(IMes)2] reacts with chloroboranes via oxidative addition to form rare unsupported Ni-boryls. In contrast, the oxidative addition of hydridoboranes is not observed and products from competing reaction pathways are identified. Computational studies relate these differences to the mechanism of oxidative addition: B-Cl activation proceeds via nucleophilic displacement of Cl-, while B-H activation would entail high energy concerted bond cleavage.
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Affiliation(s)
- Gabrielle Audsley
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford GU2 7XH, UK.
| | - Ambre Carpentier
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | | | - James Wright
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford GU2 7XH, UK.
| | | | - Ewan R Clark
- School of Physical Sciences, University of Kent, Canterbury, CT2 7NH, UK
| | - Stuart A Macgregor
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - Ian M Riddlestone
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford GU2 7XH, UK.
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Tendera L, Kuehn L, Marder TB, Radius U. On the Reactivity of a NHC Nickel Bis-Boryl Complex: Reductive Elimination and Formation of Mono-Boryl Complexes. Chemistry 2023; 29:e202302310. [PMID: 37551752 DOI: 10.1002/chem.202302310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/09/2023]
Abstract
The synthesis of the first terminal mono-boryl complexes of nickel, which are not stabilized by a pincer ligand, is reported. The reaction of the nickel bis-boryl complex cis-[Ni(i Pr2 ImMe )2 (Bcat)2 ] 1 (cat=1,2-O2 C6 H4 ) with the small donor ligand PMe3 led to a complete ligand exchange at nickel with reductive elimination of B2 cat2 and formation of the bis-NHC adduct [B2 cat2 ⋅ (i Pr2 ImMe )2 ] 3 and [Ni(PMe3 )4 ] 2 as the metal-containing species. Electrophilic attack of MeI on complex 1 or ligand dismutation of 1 with trans-[Ni(i Pr2 ImMe )2 Br2 ] led to loss of only one boryl ligand of 1 and afforded the nickel mono-boryl complexes trans-[Ni(i Pr2 ImMe )2 (Bcat)Br] 4 a and trans-[Ni(i Pr2 ImMe )2 (Bcat)I] 4 b.
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Affiliation(s)
- Lukas Tendera
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Laura Kuehn
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Udo Radius
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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5
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Tendera L, Fantuzzi F, Marder TB, Radius U. Nickel boryl complexes and nickel-catalyzed alkyne borylation. Chem Sci 2023; 14:2215-2228. [PMID: 36845942 PMCID: PMC9945561 DOI: 10.1039/d2sc04690c] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/27/2023] [Indexed: 01/28/2023] Open
Abstract
The first nickel bis-boryl complexes cis-[Ni( i Pr2ImMe)2(Bcat)2], cis-[Ni( i Pr2ImMe)2(Bpin)2] and cis-[Ni( i Pr2ImMe)2(Beg)2] are reported, which were prepared via the reaction of a source of [Ni( i Pr2ImMe)2] with the diboron(4) compounds B2cat2, B2pin2 and B2eg2 ( i Pr2ImMe = 1,3-di-iso-propyl-4,5-dimethylimidazolin-2-ylidene; B2cat2 = bis(catecholato)diboron; B2pin2 = bis(pinacolato)diboron; B2eg2 = bis(ethylene glycolato)diboron). X-ray diffraction and DFT calculations strongly suggest that a delocalized, multicenter bonding scheme dictates the bonding situation of the NiB2 moiety in these square planar complexes, reminiscent of the bonding situation of "non-classical" H2 complexes. [Ni( i Pr2ImMe)2] also efficiently catalyzes the diboration of alkynes using B2cat2 as the boron source under mild conditions. In contrast to the known platinum-catalyzed diboration, the nickel system follows a different mechanistic pathway, which not only provides the 1,2-borylation product in excellent yields, but also provides an efficient approach to other products such as C-C coupled borylation products or rare tetra-borylated compounds. The mechanism of the nickel-catalyzed alkyne borylation was examined by means of stoichiometric reactions and DFT calculations. Oxidative addition of the diboron reagent to nickel is not dominant; the first steps of the catalytic cycle are coordination of the alkyne to [Ni( i Pr2ImMe)2] and subsequent borylation at the coordinated and, thus, activated alkyne to yield complexes of the type [Ni(NHC)2(η2-cis-(Bcat)(R)C[double bond, length as m-dash]C(R)(Bcat))], exemplified by the isolation and structural characterization of [Ni( i Pr2ImMe)2(η2-cis-(Bcat)(Me)C[double bond, length as m-dash]C(Me)(Bcat))] and [Ni( i Pr2ImMe)2(η2-cis-(Bcat)(H7C3)C[double bond, length as m-dash]C(C3H7)(Bcat))].
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Affiliation(s)
- Lukas Tendera
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Felipe Fantuzzi
- School of Chemistry and Forensic Science, University of KentPark Wood RdCanterburyCT2 7NHUK
| | - Todd B. Marder
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität WürzburgAm Hubland97074 WürzburgGermany,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität WürzburgAm Hubland97074 WürzburgGermany
| | - Udo Radius
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
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Li XX, Wang JS, You XX, Zhong RL, Su ZM. Theoretical Insight into the Multiple Roles of LiHMDS in Pd-Catalyzed Borylation of Fluorobenzene. J Org Chem 2022; 87:16039-16046. [PMID: 36379013 DOI: 10.1021/acs.joc.2c02165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pd-catalyzed borylation of fluorobenzene was theoretically studied. DFT calculations revealed that the reaction occurs through an unprecedented 3 + 6-membered ring transition state, in which one LiHMDS (HMDS = hexamethyldisilazane) acts as a ligand and another LiHMDS is essential to provide Li···N and Li···F interactions, overcoming the large destabilization of the strong phenyl-F bond distortion. The characteristic feature of LiHMDS was elucidated by comparing it with HMDS and NaHMDS analogues.
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Affiliation(s)
- Xiao-Xiao Li
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Jian-Sen Wang
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Xiao-Xia You
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Rong-Lin Zhong
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
| | - Zhong-Min Su
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130023, P. R. China
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Babón JC, Esteruelas MA, López AM, Oñate E. Reactions of an Osmium-Hexahydride Complex with 2-Butyne and 3-Hexyne and Their Performance in the Migratory Hydroboration of Aliphatic Internal Alkynes. Organometallics 2022; 41:2513-2524. [PMID: 36864948 PMCID: PMC9969483 DOI: 10.1021/acs.organomet.2c00338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 11/28/2022]
Abstract
Reactions of the hexahydride OsH6(PiPr3)2 (1) with 2-butyne and 3-hexyne and the behavior of the resulting species toward pinacolborane (pinBH) have been investigated in the search for new hydroboration processes. Complex 1 reacts with 2-butyne to give 1-butene and the osmacyclopropene OsH2(η2-C2Me2)(PiPr3)2 (2). In toluene, at 80 °C, the coordinated hydrocarbon isomerizes into a η4-butenediyl form to afford OsH2(η4-CH2CHCHCH2)(PiPr3)2 (3). Isotopic labeling experiments indicate that the isomerization involves Me-to-COs hydrogen 1,2-shifts, which take place through the metal. The reaction of 1 with 3-hexyne gives 1-hexene and OsH2(η2-C2Et2)(PiPr3)2 (4). Similarly to 2, complex 4 evolves to η4-butenediyl derivatives OsH2(η4-CH2CHCHCHEt)(PiPr3)2 (5) and OsH2(η4-MeCHCHCHCHMe)(PiPr3)2 (6). In the presence of pinBH, complex 2 generates 2-pinacolboryl-1-butene and OsH{κ2-H,H-(H2Bpin)}(η2-HBpin)(PiPr3)2 (7). According to the formation of the borylated olefin, complex 2 is a catalyst precursor for the migratory hydroboration of 2-butyne and 3-hexyne to 2-pinacolboryl-1-butene and 4-pinacolboryl-1-hexene. During the hydroboration, complex 7 is the main osmium species. The hexahydride 1 also acts as a catalyst precursor, but it requires an induction period that causes the loss of 2 equiv of alkyne per equiv of osmium.
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8
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Cetin HK, Baytaroglu C. The Impact of Age on Percutaneous Thrombectomy Outcomes in the Management of Lower Extremity Deep Vein Thrombosis. HASEKI TIP BÜLTENI 2022. [DOI: 10.4274/haseki.galenos.2022.8233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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9
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Zhang L, Li Y, Wang L, Cao Z, Zhang Q, Li Y. Two β‐Diketiminate Zinc Complexes with 1‐D Chain and Dinuclear Topologies: Synthesis, Structures, and Catalytic Behavior. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Liang Zhang
- Soochow University College of Chemistry, Chemical engineering and materials Science CHINA
| | - Yafei Li
- Soochow University College of Chemistry, Chemical engineering and materials Science CHINA
| | - Li Wang
- Soochow University College of Chemistry, Chemical engineering,and materials Science CHINA
| | - Zhu Cao
- Soochow University College of Chemistry, Chemical engineering,and materials Science CHINA
| | - Qian Zhang
- Soochow University College of Chemistry, Chemical engineering,and materials Science CHINA
| | - Yahong Li
- Soochow University Chemistry No 199 Renai Road 215123 Suzhou CHINA
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10
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Khake SM, Chatani N. Rhodium(III)-Catalyzed Oxidative C–H Alkylation of Aniline Derivatives with Allylic Alcohols To Produce β-Aryl Ketones. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00854] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shrikant M. Khake
- Department of Applied Chemistry, Faculty of Engineering, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Suita, Osaka 565-0871, Japan
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11
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Bhattacharjee J, Bockfeld D, Tamm M. N-Heterocyclic Carbene-Phosphinidenide Complexes as Hydroboration Catalysts. J Org Chem 2022; 87:1098-1109. [PMID: 35007063 DOI: 10.1021/acs.joc.1c02377] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The reactions of the N-heterocyclic carbene-phosphinidene adducts (NHC)PSiMe3 and (NHC)PH with the dinuclear ruthenium and osmium complexes [(η6-p-cymene)MCl2]2 (M = Ru, Os) afforded the half-sandwich complexes [(η6-p-cymene){(NHC)P}MCl] and [(η6-p-cymene){(NHC)PH}MCl2] with two- and three-legged piano-stool geometries, respectively (NHC = IDipp, IMes; IDipp = 1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene; IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene). The complexes were initially tested as precatalysts for the hydroboration of benzonitrile, and the most active species, the ruthenium complex [(η6-p-cymene){(IMes)P}RuCl], was further used for the efficient hydroboration of a wide range (ca. 50 substrates) of nitriles, carboxylic esters, and carboxamides in neat pinacolborane (HBpin) under comparatively mild reaction conditions (60-80 °C, 3-5 mol % catalyst loading). Preliminary mechanistic and kinetic studies are reported, and stoichiometric reactions with HBpin indicate the initial formation of the monohydride complex [(η6-p-cymene){(IMes)P}RuH] as the putative catalytically active species.
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Affiliation(s)
- Jayeeta Bhattacharjee
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Dirk Bockfeld
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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12
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Grygorenko OO, Moskvina VS, Kleban I, Hryshchyk OV. Synthesis of saturated and partially saturated heterocyclic boronic derivatives. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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13
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Itabashi T, Arashiba K, Tanaka H, Yoshizawa K, Nishibayashi Y. Hydroboration and Hydrosilylation of a Molybdenum–Nitride Complex Bearing a PNP-Type Pincer Ligand. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00597] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takayuki Itabashi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazuya Arashiba
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiromasa Tanaka
- School of Liberal Arts and Sciences, Daido University, Takiharu-cho, Minami-ku, Nagoya 457-8530, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiaki Nishibayashi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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14
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Bose SK, Mao L, Kuehn L, Radius U, Nekvinda J, Santos WL, Westcott SA, Steel PG, Marder TB. First-Row d-Block Element-Catalyzed Carbon-Boron Bond Formation and Related Processes. Chem Rev 2021; 121:13238-13341. [PMID: 34618418 DOI: 10.1021/acs.chemrev.1c00255] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organoboron reagents represent a unique class of compounds because of their utility in modern synthetic organic chemistry, often affording unprecedented reactivity. The transformation of the carbon-boron bond into a carbon-X (X = C, N, and O) bond in a stereocontrolled fashion has become invaluable in medicinal chemistry, agrochemistry, and natural products chemistry as well as materials science. Over the past decade, first-row d-block transition metals have become increasingly widely used as catalysts for the formation of a carbon-boron bond, a transformation traditionally catalyzed by expensive precious metals. This recent focus on alternative transition metals has enabled growth in fundamental methods in organoboron chemistry. This review surveys the current state-of-the-art in the use of first-row d-block element-based catalysts for the formation of carbon-boron bonds.
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Affiliation(s)
- Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India
| | - Lujia Mao
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, 571199 Haikou, Hainan, P. R. China
| | - Laura Kuehn
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Jan Nekvinda
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Stephen A Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Patrick G Steel
- Department of Chemistry, University of Durham, Science Laboratories South Road, Durham DH1 3LE, U.K
| | - Todd B Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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16
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Synthesis of arylboronates via the Pd-catalyzed desulfitative coupling reaction of sodium arylsulfinates with bis(pinacolato)diboron. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Huang M, Wu Z, Krebs J, Friedrich A, Luo X, Westcott SA, Radius U, Marder TB. Ni-Catalyzed Borylation of Aryl Sulfoxides. Chemistry 2021; 27:8149-8158. [PMID: 33851475 PMCID: PMC8252015 DOI: 10.1002/chem.202100342] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Indexed: 12/21/2022]
Abstract
A nickel/N-heterocyclic carbene (NHC) catalytic system has been developed for the borylation of aryl sulfoxides with B2 (neop)2 (neop=neopentyl glycolato). A wide range of aryl sulfoxides with different electronic and steric properties were converted into the corresponding arylboronic esters in good yields. The regioselective borylation of unsymmetric diaryl sulfoxides was also feasible leading to borylation of the sterically less encumbered aryl substituent. Competition experiments demonstrated that an electron-deficient aryl moiety reacts preferentially. The origin of the selectivity in the Ni-catalyzed borylation of electronically biased unsymmetrical diaryl sulfoxide lies in the oxidative addition step of the catalytic cycle, as oxidative addition of methoxyphenyl 4-(trifluoromethyl)phenyl sulfoxide to the Ni(0) complex occurs selectively to give the structurally characterized complex trans-[Ni(ICy)2 (4-CF3 -C6 H4 ){(SO)-4-MeO-C6 H4 }] 4. For complex 5, the isomer trans-[Ni(ICy)2 (C6 H5 )(OSC6 H5 )] 5-I was structurally characterized in which the phenyl sulfinyl ligand is bound via the oxygen atom to nickel. In solution, the complex trans-[Ni(ICy)2 (C6 H5 )(OSC6 H5 )] 5-I is in equilibrium with the S-bonded isomer trans-[Ni(ICy)2 (C6 H5 )(SOC6 H5 )] 5, as shown by NMR spectroscopy. DFT calculations reveal that these isomers are separated by a mere 0.3 kJ/mol (M06/def2-TZVP-level of theory) and connected via a transition state trans-[Ni(ICy)2 (C6 H5 )(η2 -{SO}-C6 H5 )], which lies only 10.8 kcal/mol above 5.
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Affiliation(s)
- Mingming Huang
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Zhu Wu
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Johannes Krebs
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Xiaoling Luo
- Chongqing Key Laboratory of Inorganic Functional MaterialsCollege of ChemistryChongqing Normal UniversityChongqing401331China
| | - Stephen A. Westcott
- Department of Chemistry & BiochemistryMount Allison UniversitySackvilleNB E4L 1G8Canada
| | - Udo Radius
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Todd B. Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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18
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Shegavi ML, Saini S, Bhawar R, Vishwantha MD, Bose SK. Recyclable Copper Nanoparticles‐Catalyzed Hydroboration of Alkenes and β‐Borylation of α,β‐Unsaturated Carbonyl Compounds with Bis(Pinacolato)Diboron. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001616] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mahadev L. Shegavi
- Centre for Nano and Material Sciences (CNMS) JAIN (Deemed-to-be University) Jain Global Campus Bangalore 562112 India
| | - Suresh Saini
- Centre for Nano and Material Sciences (CNMS) JAIN (Deemed-to-be University) Jain Global Campus Bangalore 562112 India
| | - Ramesh Bhawar
- Centre for Nano and Material Sciences (CNMS) JAIN (Deemed-to-be University) Jain Global Campus Bangalore 562112 India
| | - Meghana Desai Vishwantha
- Centre for Nano and Material Sciences (CNMS) JAIN (Deemed-to-be University) Jain Global Campus Bangalore 562112 India
| | - Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS) JAIN (Deemed-to-be University) Jain Global Campus Bangalore 562112 India
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19
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Wright JS, Scott PJH, Steel PG. Iridium-Catalysed C-H Borylation of Heteroarenes: Balancing Steric and Electronic Regiocontrol. Angew Chem Int Ed Engl 2021; 60:2796-2821. [PMID: 32202024 PMCID: PMC7894576 DOI: 10.1002/anie.202001520] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/09/2020] [Indexed: 12/19/2022]
Abstract
The iridium-catalysed borylation of aromatic C-H bonds has become the preferred method for the synthesis of aromatic organoboron compounds. The reaction is highly efficient, tolerant of a broad range of substituents and can be applied to both carbocyclic and heterocyclic substrates. The regioselectivity of C-H activation is dominated by steric considerations and there have been considerable efforts to develop more selective processes for less constrained substrates. However, most of these have focused on benzenoid-type substrates and in contrast, heteroarenes remain much desired but more challenging substrates with the position and/or nature of the heteroatom(s) significantly affecting reactivity and regioselectivity. This review will survey the borylation of heteroarenes, focusing on the influence of steric and electronic effects on regiochemical outcome and, by linking to current mechanistic understandings, will provide insights to what is currently possible and where further developments are required.
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Affiliation(s)
- Jay S. Wright
- Department of ChemistryUniversity of DurhamScience Laboratories, South Road DurhamDurhamDH1 3LEUK
- Department of RadiologyUniversity of MichiganAnn ArborMichiganUSA
| | | | - Patrick G. Steel
- Department of ChemistryUniversity of DurhamScience Laboratories, South Road DurhamDurhamDH1 3LEUK
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20
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Zhao K, Du Y, Peng Q, Yu WH, Wang BQ, Feng C, Xiang SK. Regiodivergent C-H Arylation of Triphenylene Derivatives Controlled by Electronic Effects of Diaryliodonium Salts. J Org Chem 2021; 86:2986-2997. [PMID: 33481590 DOI: 10.1021/acs.joc.0c02900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A regiodivergent C-H arylation of triphenylene derivatives with diaryliodonium salts was developed. The regiodivergence was controlled by electronic effects of diaryliodonium salts. When the aryl(mesityl)iodonium salts bearing strong electron-donating groups at the para-position of aryl groups were used, the arylation reactions occurred ortho to amide groups. However, if the aryl(mesityl)iodonium salts bearing electron-withdrawing groups or weak electron-donating groups at the para-position of aryl groups were utilized, the arylation reactions occurred meta to amide groups.
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Affiliation(s)
- Ke Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Yu Du
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Qiong Peng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Wen-Hao Yu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Chun Feng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Shi-Kai Xiang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
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21
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Siddiqui S, Bhawar R, Geetharani K. Iron-Based Catalyst for Borylation of Unactivated Alkyl Halides without Using Highly Basic Organometallic Reagents. J Org Chem 2021; 86:1948-1954. [PMID: 33356260 DOI: 10.1021/acs.joc.0c02364] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The mild borylation of alkyl bromides and chlorides with bis(neopentylglycolato)diborane (B2neop2) mediated by iron-bis amide is described. The reaction proceeds with a broad substrate scope and good functional group compatibility. Moreover, sufficient catalytic activity was obtained for primary and secondary alkyl halides. Mechanistic studies indicate that the reaction proceeds through a radical pathway.
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Affiliation(s)
- Sheema Siddiqui
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Ramesh Bhawar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - K Geetharani
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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22
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Garhwal S, Kroeger AA, Thenarukandiyil R, Fridman N, Karton A, de Ruiter G. Manganese-Catalyzed Hydroboration of Terminal Olefins and Metal-Dependent Selectivity in Internal Olefin Isomerization-Hydroboration. Inorg Chem 2021; 60:494-504. [PMID: 33325695 DOI: 10.1021/acs.inorgchem.0c03451] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the past decade, the use of earth-abundant metals in homogeneous catalysis has flourished. In particular, metals such as cobalt and iron have been used extensively in reductive transformations including hydrogenation, hydroboration, and hydrosilylation. Manganese, on the other hand, has been considerably less explored in these reductive transformations. Here, we report a well-defined manganese complex, [Mn(iPrBDI)(OTf)2] (2a; BDI = bipyridinediimine), that is an active precatalyst in the hydroboration of a variety of electronically differentiated alkenes (>20 examples). The hydroboration is specifically selective for terminal alkenes and occurs with exclusive anti-Markovnikov selectivity. In contrast, when using the analogous cobalt complex [Co(iPrBDI)(OTf)2] (3a), internal alkenes are hydroborated efficiently, where a sequence of isomerization steps ultimately leads to their hydroboration. The contrasting terminal versus internal alkene selectivity for manganese and cobalt was investigated computationally and is further discussed in the herein-reported study.
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Affiliation(s)
- Subhash Garhwal
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, 3200008 Haifa, Israel
| | - Asja A Kroeger
- School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, 6009 Perth, WA Australia
| | - Ranjeesh Thenarukandiyil
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, 3200008 Haifa, Israel
| | - Natalia Fridman
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, 3200008 Haifa, Israel
| | - Amir Karton
- School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, 6009 Perth, WA Australia
| | - Graham de Ruiter
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, 3200008 Haifa, Israel
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23
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Shen BX, Min XT, Hu YC, Qian LL, Yang SN, Wan B, Chen QA. Copper-catalyzed boroacylation of allenes to access tetrasubstituted vinylboronates. Org Biomol Chem 2020; 18:9253-9260. [PMID: 33150922 DOI: 10.1039/d0ob02008g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A distinct copper-catalyzed boroacylation of allenes with acyl chlorides and bis(pinacolato)diboron is developed. For aromatic acyl chlorides, 1,2-boroacylation of allenes readily takes place, leading to the formation of tetrasubstituted vinylboronates with exclusive (E)-stereoselectivity. In comparison, the employment of alkyl acyl chlorides as electrophiles alters the selectivity to 2,3-boroacylated products. Additionally, the product can easily undergo Suzuki-Miyaura cross-coupling to afford tetrasubstituted alkene with complete retention of the configuration.
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Affiliation(s)
- Bing-Xue Shen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
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24
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Wright JS, Scott PJH, Steel PG. Iridium‐katalysierte C‐H‐Borylierung von Heteroarenen: Eine Balance zwischen sterischer and elektronischer Regiokontrolle. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001520] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jay S. Wright
- Department of Chemistry University of Durham Science Laboratories, South Road Durham Durham DH1 3LE Großbritannien
- Department of Radiology University of Michigan Ann Arbor Michigan USA
| | - Peter J. H. Scott
- Department of Radiology University of Michigan Ann Arbor Michigan USA
| | - Patrick G. Steel
- Department of Chemistry University of Durham Science Laboratories, South Road Durham Durham DH1 3LE Großbritannien
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25
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Yoshinaga Y, Yamamoto T, Suginome M. Enantioconvergent Cu-Catalyzed Intramolecular C-C Coupling at Boron-Bound C(sp 3) Atoms of α-Aminoalkylboronates Using a C1-Symmetrical 2,2'-Bipyridyl Ligand Attached to a Helically Chiral Macromolecular Scaffold. J Am Chem Soc 2020; 142:18317-18323. [PMID: 33063989 DOI: 10.1021/jacs.0c09080] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Enantioconvergent intramolecular coupling of α-(2-bromobenzoylamino)benzylboronic esters was achieved using a copper catalyst having helically chiral macromolecular bipyridyl ligand, PQXbpy. Racemic α-(2-bromobenzoylamino)benzylboronic esters were converted into (R)-configured 3-arylisoindolinones with high enantiopurity using right-handed helical PQXbpy as a chiral ligand in a toluene/CHCl3 mixed solvent. When enantiopure (R)- and (S)-configured boronates were separately reacted under the same reaction conditions, both afforded (R)-configured products through formal stereoinvertive and stereoretentive processes, respectively. From these results, a mechanism involving deracemization of organocopper intermediates in the presence of PQXbpy is assumed. PQXbpy switched its helical sense to left-handed when a toluene/1,1,2-trichloroethane mixed solvent was used, resulting in the formation of the corresponding (S)-products from the racemic starting material.
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Affiliation(s)
- Yukako Yoshinaga
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takeshi Yamamoto
- 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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26
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Fujimori S, Inoue S. Small Molecule Activation by Two-Coordinate Acyclic Silylenes. Eur J Inorg Chem 2020; 2020:3131-3142. [PMID: 32999589 PMCID: PMC7507849 DOI: 10.1002/ejic.202000479] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Indexed: 02/05/2023]
Abstract
In recent decades, the chemistry of stable silylenes (R2Si:) has evolved significantly. The first major development in this chemistry was the isolation of a silicocene which is stabilized by the Cp* (Cp* = η5-C5Me5) ligand in 1986 and subsequently the isolation of a first N-heterocyclic silylene (NHSi:) in 1994. Since the groundbreaking discoveries, a large number of isolable cyclic silylenes and higher coordinated silylenes, i.e. Si(II) compounds with coordination number greater than two, have been prepared and the properties investigated. However, the first isolable two-coordinate acyclic silylene was finally reported in 2012. The achievements in the synthesis of acyclic silylenes have allowed for the utilization of silylenes in small molecule activation including inert H2 activation, a process previously exclusive to transition metals. This minireview highlights the developments in silylene chemistry, specifically two-coordinate acyclic silylenes, including experimental and computational studies which investigate the extremely high reactivity of the acyclic silylenes.
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Affiliation(s)
- Shiori Fujimori
- Department of ChemistryWACKER‐Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
| | - Shigeyoshi Inoue
- Department of ChemistryWACKER‐Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
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27
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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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28
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Chen X, Huang Y, Zhou J, Wang P. Pd‐Catalyzed Site‐Selective
Borylation of Simple Arenes
via
Thianthrenation
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000212] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xiao‐Yue Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences (CAS) 345 Lingling Road Shanghai 200032 China
| | - Yu‐Hao Huang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences (CAS) 345 Lingling Road Shanghai 200032 China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Peng Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences (CAS) 345 Lingling Road Shanghai 200032 China
- CAS Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, CAS 345 Lingling Road Shanghai 200032 China
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29
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Zhang G, Li Y, Wang Y, Zhang Q, Xiong T, Zhang Q. Asymmetric Synthesis of Silicon‐Stereogenic Silanes by Copper‐Catalyzed Desymmetrizing Protoboration of Vinylsilanes. Angew Chem Int Ed Engl 2020; 59:11927-11931. [DOI: 10.1002/anie.202005341] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Ge Zhang
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Yanfei Li
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Ying Wang
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Qian Zhang
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Tao Xiong
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Qian Zhang
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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30
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Zhang G, Li Y, Wang Y, Zhang Q, Xiong T, Zhang Q. Asymmetric Synthesis of Silicon‐Stereogenic Silanes by Copper‐Catalyzed Desymmetrizing Protoboration of Vinylsilanes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005341] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ge Zhang
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Yanfei Li
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Ying Wang
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Qian Zhang
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Tao Xiong
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
| | - Qian Zhang
- Department of Chemistry Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Northeast Normal University Changchun 130024 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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31
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Liu Z, Luan N, Lu H, Liang A, Li J, Zou D, Wu Y, Wu Y. Boron-Promoted Ether Interchange Reaction: Synthesis of Alkyl Nitroaromatic Ethers from Methoxynitroarenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zhenwei Liu
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Nannan Luan
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Hongtao Lu
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Apeng Liang
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Jingya Li
- Tetranov Biopharm, LLC. And Collaborative Innovation Center of New Drug Research and Safety Evaluation; 450052 Zhengzhou Henan China
| | - Dapeng Zou
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Yangjie Wu
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Yusheng Wu
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
- Tetranov Biopharm, LLC. And Collaborative Innovation Center of New Drug Research and Safety Evaluation; 450052 Zhengzhou Henan China
- Tetranov International, Inc.; 08901 New Brunswick NJ USA
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32
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Photocatalytic C–X borylation of aryl halides by hierarchical SiC nanowire-supported Pd nanoparticles. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63449-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Oda S, Ueura K, Kawakami B, Hatakeyama T. Multiple Electrophilic C–H Borylation of Arenes Using Boron Triiodide. Org Lett 2020; 22:700-704. [DOI: 10.1021/acs.orglett.9b04483] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Susumu Oda
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Kenta Ueura
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Bungo Kawakami
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Takuji Hatakeyama
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
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34
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Ma G, Chen C, Talukdar S, Zhao X, Lei C, Gong H. Metal catalyst-free photo-induced alkyl C–O bond borylation. Chem Commun (Camb) 2020; 56:10219-10222. [DOI: 10.1039/d0cc04776g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Tertiary alkyl boronates were prepared via the C–O bond borylation of the corresponding oxalates under catalyst-free/(DMF)2–B2cat2 initiated visible light-induced conditions.
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Affiliation(s)
- Guobin Ma
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Department of Physics and Institute for the Conservation of Cultural Heritage
- Shanghai University
- Shanghai 200444
- China
| | - Changzhou Chen
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Department of Physics and Institute for the Conservation of Cultural Heritage
- Shanghai University
- Shanghai 200444
- China
| | - Sangita Talukdar
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Department of Physics and Institute for the Conservation of Cultural Heritage
- Shanghai University
- Shanghai 200444
- China
| | - Xinluo Zhao
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Department of Physics and Institute for the Conservation of Cultural Heritage
- Shanghai University
- Shanghai 200444
- China
| | - Chuanhu Lei
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Department of Physics and Institute for the Conservation of Cultural Heritage
- Shanghai University
- Shanghai 200444
- China
| | - Hegui Gong
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Department of Physics and Institute for the Conservation of Cultural Heritage
- Shanghai University
- Shanghai 200444
- China
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35
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Zhong RL. C–F bond arylation of fluoroarenes catalyzed by Pd0 phosphine complexes: theoretical insight into regioselectivity, reactivity, and prediction of ligands. Org Chem Front 2020. [DOI: 10.1039/c9qo01095e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C3-Regioselective arylation of pentafluorobenzene arises from a lower σ* orbital energy of C3–F that stabilizes the transition state further.
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Affiliation(s)
- Rong-Lin Zhong
- Laboratory of Theoretical and Computational Chemistry
- Institute of Theoretical Chemistry
- College of Chemistry
- Jilin University
- Changchun
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36
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Liu X, Ming W, Zhang Y, Friedrich A, Marder TB. Copper-Catalyzed Triboration: Straightforward, Atom-Economical Synthesis of 1,1,1-Triborylalkanes from Terminal Alkynes and HBpin. Angew Chem Int Ed Engl 2019; 58:18923-18927. [PMID: 31490606 PMCID: PMC6972527 DOI: 10.1002/anie.201909376] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/28/2019] [Indexed: 02/06/2023]
Abstract
A convenient and efficient one-step synthesis of 1,1,1-triborylalkanes was achieved via sequential dehydrogenative borylation and double hydroborations of terminal alkynes with HBpin (HBpin=pinacolborane) catalyzed by inexpensive and readily available Cu(OAc)2 . This process proceeds under mild conditions, furnishing 1,1,1-tris(boronates) with wide substrate scope, excellent selectivity, and good functional-group tolerance, and is applicable to gram-scale synthesis without loss of yield. The 1,1,1-triborylalkanes can be used in the preparation of α-vinylboronates and borylated cyclic compounds, which are valuable but previously rare compounds. Different alkyl groups can be introduced stepwise via base-mediated deborylative alkylation to produce racemic tertiary alkyl boronates, which can be readily transformed into useful tertiary alcohols.
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Affiliation(s)
- Xiaocui Liu
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Wenbo Ming
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Yixiao Zhang
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Alexandra Friedrich
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Todd B. Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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37
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Liu X, Ming W, Zhang Y, Friedrich A, Marder TB. Kupferkatalysierte Triborierung: Einfache, atomökonomische Synthese von 1,1,1‐Triborylalkanen aus terminalen Alkinen und HBpin. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiaocui Liu
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit BorJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Wenbo Ming
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit BorJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Yixiao Zhang
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit BorJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Alexandra Friedrich
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit BorJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Todd B. Marder
- Institut für Anorganische Chemie und Institut für Nachhaltige Chemie & Katalyse mit BorJulius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
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38
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Fukuda JI, Nogi K, Yorimitsu H. Cross-Coupling of Aryl Trifluoromethyl Sulfones with Arylboronates by Cooperative Palladium/Rhodium Catalysis. Org Lett 2019; 21:8987-8991. [DOI: 10.1021/acs.orglett.9b03393] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun-ichi Fukuda
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Keisuke Nogi
- 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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39
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Curto SG, Esteruelas MA, Oliván M, Oñate E. Insertion of Diphenylacetylene into Rh–Hydride and Rh–Boryl Bonds: Influence of the Boryl on the Behavior of the β-Borylalkenyl Ligand. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00513] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sheila G. Curto
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
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40
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Zhang L, Li Z, Takimoto M, Hou Z. Carboxylation Reactions with Carbon Dioxide Using N-Heterocyclic Carbene-Copper Catalysts. CHEM REC 2019; 20:494-512. [PMID: 31573147 DOI: 10.1002/tcr.201900060] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/26/2019] [Indexed: 12/16/2022]
Abstract
The development of versatile catalyst systems and new transformations for the utilization of carbon dioxide (CO2 ) is of great interest and significance. This Personal Account reviews our studies on the exploration of the reactions of CO2 with various substrates by the use of N-heterocyclic carbene (NHC)-copper catalysts. The carboxylation of organoboron compounds gave access to a wide range of carboxylic acids with excellent functional group tolerance. The C-H bond carboxylation with CO2 emerged as a straightforward protocol for the preparation of a series of aromatic carboxylic esters and butenoates from simple substrates. The hydrosilylation of CO2 with hydrosilanes provided an efficient method for the synthesis of silyl formate on gram scale. The hydrogenative or alkylative carboxylation of alkynes, ynamides and allenamides yielded useful α,β-unsaturated carboxylic acids and α,β-dehydro amino acid esters. The boracarboxylation of alkynes or aldehydes afforded the novel lithium cyclic boralactone or boracarbonate products, respectively. The NHC-copper catalysts generally featured excellent functional group compatibility, broad substrate scope, high efficiency, and high regio- and stereoselectivity. The unique electronic and steric properties of the NHC-copper units also enabled the isolation and structural characterization of some key intermediates for better understanding of the catalytic reaction mechanisms.
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Affiliation(s)
- Liang Zhang
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.,Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Zhenghua Li
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Masanori Takimoto
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.,Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Zhaomin Hou
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.,Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
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41
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Wang ZC, Shen D, Gao J, Jia X, Xu Y, Shi SL. Base-catalysed reductive relay hydroboration of allylic alcohols with pinacolborane to form alkylboronic esters. Chem Commun (Camb) 2019; 55:8848-8851. [PMID: 31173003 DOI: 10.1039/c9cc03459e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An unprecedented base-catalysed reductive relay hydroboration of allylic alcohols is described. Commercially available nBuLi was found to be a robust transition metal-free initiator for this protocol, affording various boronic esters in high yield and selectivity. Mechanistically, this methodology involves a one-pot three-step successive process (dehydrocoupling/allylic hydride substitution/anti-Markovnikov hydroboration).
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Affiliation(s)
- Zi-Chao Wang
- School of Pharmaceutical Engineering, and Key Laboratory of Structure-Based Drug Design & Discovery (Ministry of Education), Shenyang Pharmaceutical University, Shenyang 110016, China.
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42
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Yang L, Uemura N, Nakao Y. meta-Selective C–H Borylation of Benzamides and Pyridines by an Iridium–Lewis Acid Bifunctional Catalyst. J Am Chem Soc 2019; 141:7972-7979. [DOI: 10.1021/jacs.9b03138] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Lichen Yang
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Nao Uemura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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43
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Zhao F, Li P, Liu X, Jia X, Wang J, Liu H. Recent Advances in the Addition of Amide/Sulfonamide Bonds to Alkynes. Molecules 2019; 24:E164. [PMID: 30621120 PMCID: PMC6337386 DOI: 10.3390/molecules24010164] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/27/2018] [Accepted: 12/27/2018] [Indexed: 11/30/2022] Open
Abstract
The addition of amide/sulfonamide bonds to alkynes is not only one of the most important strategies for the direct functionalization of carbon⁻carbon triple bonds, but also a powerful tool for the downstream transformations of amides/sulfonamides. The present review provides a comprehensive summary of amide/sulfonamide bond addition to alkynes, including direct and metal-free aminoacylation, based-promoted aminoacylation, transition-metal-catalyzed aminoacylation, organocatalytic aminoacylation and transition-metal-catalyzed aminosulfonylation of alkynes up to December 2018. The reaction conditions, regio- and stereoselectivities, and mechanisms are discussed and summarized in detail.
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Affiliation(s)
- Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Hua Guan Road, Chengdu 610052, China.
| | - Pinyi Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Hua Guan Road, Chengdu 610052, China.
| | - Xiaoyan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Hua Guan Road, Chengdu 610052, China.
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Hua Guan Road, Chengdu 610052, China.
| | - Jiang Wang
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China.
| | - Hong Liu
- State Key Laboratory of Drug Research and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China.
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44
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Kuehn L, Huang M, Radius U, Marder TB. Copper-catalysed borylation of aryl chlorides. Org Biomol Chem 2019; 17:6601-6606. [DOI: 10.1039/c9ob01244c] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The first example of a Cu-catalysed borylation of a wide range of aryl chlorides with different electronic and steric properties is mediated by a readily prepared NHC-stabilised Cu catalyst and KOtBu. The aryl chlorides are converted into their corresponding arylboronic esters using B2pin2 or B2neop2 as the boron reagent.
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Affiliation(s)
- Laura Kuehn
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
| | - Mingming Huang
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
| | - Udo Radius
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
| | - Todd B. Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
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45
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Bhavanarushi S, Xu Y, Khan I, Luo Z, Liu B, Xie J. Transition-metal-free borylation of propargylic alcohols: structurally variable synthesis in ionic liquid medium. Org Chem Front 2019. [DOI: 10.1039/c9qo00322c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Transition-metal-free borylation of unactivated propargylic alcohols in basic ionic liquids allowed the construction of various highly functionalized vinylboronates.
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Affiliation(s)
| | - Yin Xu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Imran Khan
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Zhibin Luo
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Bin Liu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Jimin Xie
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
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46
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Maekawa Y, Ariki ZT, Nambo M, Crudden CM. Pyridine-catalyzed desulfonative borylation of benzyl sulfones. Org Biomol Chem 2019; 17:7300-7303. [DOI: 10.1039/c9ob01099h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein, we report the transition-metal free, pyridine-catalyzed desulfonative borylation of benzyl sulfones with bis(pinacolato)diboron (B2pin2).
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Affiliation(s)
- Yuuki Maekawa
- Department of Chemistry
- Queen's University
- Kingston
- Canada
- Institute of Transformative Bio-Molecules (WPI-ITbM)
| | | | - Masakazu Nambo
- Institute of Transformative Bio-Molecules (WPI-ITbM)
- Nagoya University
- Chikusa
- Japan
| | - Cathleen M. Crudden
- Department of Chemistry
- Queen's University
- Kingston
- Canada
- Institute of Transformative Bio-Molecules (WPI-ITbM)
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47
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Nájera C, Beletskaya IP, Yus M. Metal-catalyzed regiodivergent organic reactions. Chem Soc Rev 2019; 48:4515-4618. [DOI: 10.1039/c8cs00872h] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review discusses metal-catalysed regiodivergent additions, allylic substitutions, CH-activation, cross-couplings and intra- or intermolecular cyclisations.
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
| | - Irina P. Beletskaya
- Chemistry Department
- M. V. Lomonosov Moscow State University
- 119992 Moscow
- Russia
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
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48
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Shegavi ML, Bose SK. Recent advances in the catalytic hydroboration of carbonyl compounds. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00807a] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The latest development in the catalytic hydroboration of CO groups is summarized in this review. Access to borate ester intermediates provides a pathway to convert them into the corresponding valuable functionalized alcohols.
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Affiliation(s)
- Mahadev L. Shegavi
- Centre for Nano and Material Sciences (CNMS)
- JAIN (Deemed-to-be University)
- Jain Global Campus
- Bangalore-562112
- India
| | - Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS)
- JAIN (Deemed-to-be University)
- Jain Global Campus
- Bangalore-562112
- India
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49
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Katsuma Y, Wu L, Lin Z, Akiyama S, Yamashita M. Reactivity of Highly Lewis-Acidic Diborane(4) toward C≡N and N=N Bonds: Uncatalyzed Addition and N=N Bond-Cleavage Reactions. Angew Chem Int Ed Engl 2018; 58:317-321. [DOI: 10.1002/anie.201812692] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Yuhei Katsuma
- Department of Applied Chemistry; Faculty of Science and Engineering; Chuo University, Bunkyo-ku; 112-8551 Tokyo Japan
| | - Linlin Wu
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong Hong Kong
| | - Zhenyang Lin
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong Hong Kong
| | - Seiji Akiyama
- Department of Molecular and Macromolecular Chemistry; Graduate School of Engineering; Nagoya University; Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry; Graduate School of Engineering; Nagoya University; Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
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50
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Katsuma Y, Wu L, Lin Z, Akiyama S, Yamashita M. Reactivity of Highly Lewis-Acidic Diborane(4) toward C≡N and N=N Bonds: Uncatalyzed Addition and N=N Bond-Cleavage Reactions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812692] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yuhei Katsuma
- Department of Applied Chemistry; Faculty of Science and Engineering; Chuo University, Bunkyo-ku; 112-8551 Tokyo Japan
| | - Linlin Wu
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong Hong Kong
| | - Zhenyang Lin
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong Hong Kong
| | - Seiji Akiyama
- Department of Molecular and Macromolecular Chemistry; Graduate School of Engineering; Nagoya University; Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry; Graduate School of Engineering; Nagoya University; Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
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