1
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Miura H, Imoto K, Nishio H, Junkaew A, Tsunesada Y, Fukuta Y, Ehara M, Shishido T. Optimization of Metal-Support Cooperation for Boosting the Performance of Supported Gold Catalysts for the Borylation of C-O and C-N Bonds. J Am Chem Soc 2024; 146:27528-27541. [PMID: 39205646 DOI: 10.1021/jacs.4c08340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
The cooperation of multiple catalytic components is a powerful tool for intermolecular bond formation, specifically, cross-coupling reactions. Supported metal catalysts have interfacial sites between metal nanoparticles and their supports where multiple catalytic elements can work in cooperation to efficiently promote intermolecular reactions. Hence, the establishment of novel guidelines for designing active interfacial sites of supported metal catalysts is indispensable for heterogeneous catalysts which enable efficient cross-coupling reactions. In this article, we performed kinetic and theoretical studies to elucidate the effect of metal-support cooperation for the borylation of C-O bonds by supported gold catalysts and revealed that the Lewis acid density of the supports determined the number of active sites at which metal nanoparticles (NPs) and Lewis acid at the surface of the supports work in cooperation. Furthermore, DFT calculations revealed that strong adsorption of diborons at the interface between Au NPs and supports and a decrease in the LUMO level of adsorbed diboron were responsible for efficient C-O bond borylation. Supported Au catalysts with the optimized metal-metal oxide cooperation sites, namely, Au/α-Fe2O3 catalyst, showed excellent activity for C-O bond borylation, and also enabled the synthesis of organoboron compounds by using continuous-flow reactions. Furthermore, Au/α-Fe2O3 showed high activity for direct C-N bond borylation without the transformation of amino groups to ammonium cations. The results described herein suggest that the optimization of metal-metal oxide cooperation is beneficial for taking full advantage of the potential performance of supported metal catalysts for intermolecular reactions.
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Affiliation(s)
- Hiroki Miura
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Kaoru Imoto
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Hidenori Nishio
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Anchalee Junkaew
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Yunosuke Tsunesada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yohei Fukuta
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Masahiro Ehara
- Research Center for Computational Science, Institute for Molecular Science, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
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2
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Tran MK, Ready JM. Chemoselective and Stereoselective Allylation of Bis(alkenyl)boronates. Angew Chem Int Ed Engl 2024; 63:e202407824. [PMID: 38781007 PMCID: PMC11347121 DOI: 10.1002/anie.202407824] [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: 04/24/2024] [Revised: 05/21/2024] [Accepted: 05/23/2024] [Indexed: 05/25/2024]
Abstract
Bis(alkenyl)boronates react with optically active Ir(π-allyl) species in a process that involves allylation of the more substituted olefin and 1,2-metalate shift of the less substituted olefin. The method constructs valuable enantioenriched tertiary allylic boronic esters with high chemoselectivity, enantioselectivity and diastereoselectivity. Allylic functionalization reactions transform the 1,3-stereodiad to 1,5- and 1,6-stereochemical relationships.
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Affiliation(s)
- Minh-Khoa Tran
- Department of Biochemistry, Division of Chemistry, UT Southwestern Medical Center 5323 Harry Hines Blvd., Dallas, TX 75390-0938 (USA)
| | - Joseph M. Ready
- Department of Biochemistry, Division of Chemistry, UT Southwestern Medical Center 5323 Harry Hines Blvd., Dallas, TX 75390-0938 (USA)
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3
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Doi M, Miura H, Shishido T. Borylation of Stable C(sp 3)-O Bonds of Alkyl Esters over Supported Au Catalysts. Org Lett 2024; 26:2902-2907. [PMID: 38572805 DOI: 10.1021/acs.orglett.4c00225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
We report herein that supported gold catalysts efficiently promote the borylation of stable C(sp3)-O bonds of alkyl esters. The use of a disilane as an electron source and gold nanoparticles as a single-electron transfer catalyst is the key to generating alkyl radicals via the homolysis of stable C(sp3)-O bonds, thereby enabling cross-coupling between bis(pinacolato)diboron and linear and cyclic alkyl esters to afford the diverse alkyl boronates.
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Affiliation(s)
- Masafumi Doi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Hiroki Miura
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society, Tokyo Metropolitan University, 1-1 minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society, Tokyo Metropolitan University, 1-1 minami-Osawa, Hachioji, Tokyo 192-0397, Japan
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4
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Paul S, Panda S. Synthesis of Boronic Esters from Organometallic Reagents and Bis(pinacolato)diboron. Chem Asian J 2024; 19:e202300911. [PMID: 38131458 DOI: 10.1002/asia.202300911] [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: 10/14/2023] [Revised: 12/04/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023]
Abstract
Synthesis of alkyl, aryl, and vinyl boronic esters carrying various chiral and achiral diol-protecting groups were synthesized starting from the corresponding alkyl, aryl, and vinyl lithium or Grignard reagents. Good to excellent yields were obtained for a large range of substrates. The reaction can be conducted in a gram scale to obtain the product over 80 % yield. This approach provides direct access to neopentyl, pinene, and other boronic esters that are difficult to achieve. Using trimethoxyborane or 2-isopropoxy pinacolboronic ester. Detailed mechanistic studies have been conducted to understand the mechanism behind the formation of boronic ester starting from organometallic reagents.
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Affiliation(s)
- Swagata Paul
- Indian Institute of Technology, Kharagpur, 721302, India
| | - Santanu Panda
- Indian Institute of Technology, Kharagpur, 721302, India
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5
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Zou W, Yang M, He L, Gao L, Wang G, Li S. Mechanistic Insights into the Metal-Free Deoxygenative Borylation of Ketones and Aldehydes with Bis(catecholato)diborane. Chemistry 2023; 29:e202203526. [PMID: 36547373 DOI: 10.1002/chem.202203526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/18/2022] [Accepted: 12/22/2022] [Indexed: 12/24/2022]
Abstract
The mechanisms of direct deoxygenative borylation of acetone and benzaldehyde with bis(catecholato)diborane (B2 cat2 ) in the solvent N,N-dimethylacetamide (DMA) are investigated through detailed density functional theory calculations. These calculations show that the isomer 1,2-B2 cat2 in situ generated from 1,1-B2 cat2 induced by DMA is the reactive boron intermediate for the reactions. The addition of the B-B bond of 1,2-B2 cat2 to the C=O bond of acetone or benzaldehyde via a concerted [2σ+2π]-cycloaddition-like transition state is the rate-limiting step for both the triboration reaction of acetone and the monoboration reaction of benzaldehyde. DMA not only acts as the solvent but also promotes the structural isomerization of B2 cat2 , the deoxygenation of acetone to form the vinyl boronate intermediate and subsequent diboration of vinyl boronate with 1,2-B2 cat2 , as well as the protodeboronation of the gem-diboronate intermediate in the deoxygenative borylation of benzaldehyde. The presented computational results can explain the observed experimental facts and provide insight into the roles of the isomeric 1,2-B2 cat2 and the solvent DMA in related reactions.
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Affiliation(s)
- Wentian Zou
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Mo Yang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Linke He
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Liuzhou Gao
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China.,Key Laboratory of Organosilicon Chemistry, and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, P. R. China
| | - Guoqiang Wang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Shuhua Li
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
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6
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Li J. Direct deoxygenative borylation. PURE APPL CHEM 2022. [DOI: 10.1515/pac-2022-7603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
Direct deoxygenative borylation is a highly enabling chemical transformation considering the attractive synthetic features of oxygenous feedstocks and organoboron compounds. Despite ranking among the synthetic ideality in different settings, such chemical space remained largely uncharted and underutilized until recent decades. This short review will summarize some key advances in the field of direct deoxy-borylation of alcohols, ethers, aldehydes, ketones, and carboxylic acids and organize these contributions based on substrate classes. In each representative, the general features, including reaction conditions, product scopes and mechanistic insights, will be highlighted and discussed.
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Affiliation(s)
- Jianbin Li
- Department of Chemistry , Indiana University , Bloomington , IN 47405 , USA
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7
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Aniebok V, Shingare RD, Wei‐Lee H, Johnstone TC, MacMillan JB. Biomimetic Total Synthesis and Investigation of the Non-Enzymatic Chemistry of Oxazinin A. Angew Chem Int Ed Engl 2022; 61:e202208029. [PMID: 35881566 PMCID: PMC9479274 DOI: 10.1002/anie.202208029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Indexed: 11/07/2022]
Abstract
We report the first total synthesis of an antimycobacterial natural product oxazinin A that takes advantage of a multi-component cascade reaction of anthranilic acid and a precursor polyketide containing an aldehyde. The route utilized for the synthesis of the pseudodimeric oxazinin A validates a previously proposed biosynthetic mechanism, invoking a non-enzymatic pathway to the complex molecule. We found a 76 : 10 : 9 : 5 ratio of oxazinin diastereomers from the synthetic cascade, which is an identical match to that found in the fermentation media from the fungus Eurotiomycetes 110162. Further investigation of the non-enzymatic formation of oxazinin A using 1 H-15 N HMBC NMR spectroscopy allowed for a plausible determination of the stepwise mechanism. The developed route is highly amenable for the synthesis of diverse sets of analogs around the oxazinin scaffold to study structure-activity relationships (SAR).
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Affiliation(s)
- Victor Aniebok
- Department of Chemistry and BiochemistryUC Santa CruzSanta CruzCA 95064USA
| | - Rahul D. Shingare
- Department of Chemistry and BiochemistryUC Santa CruzSanta CruzCA 95064USA
| | - Hsiau Wei‐Lee
- Department of Chemistry and BiochemistryUC Santa CruzSanta CruzCA 95064USA
| | | | - John B. MacMillan
- Department of Chemistry and BiochemistryUC Santa CruzSanta CruzCA 95064USA
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8
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Zhao X, Jia J, Li Z, Li H, Wang Y, Wang G. Stereoselective ZnCl 2-Catalyzed B–H Bond Insertion of Vinyl Carbenes Generated from Cyclopropenes for the Synthesis of Allylboranes. J Org Chem 2022; 87:13053-13061. [DOI: 10.1021/acs.joc.2c01568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ximei Zhao
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Jian Jia
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Zengzeng Li
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Haotian Li
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Yongqiang Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | - Guanghui Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
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9
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Aniebok V, Shingare R, Wei-Lee H, Johnstone T, MacMillan J. Biomimetic Total Synthesis and Investigation of the Non‑Enzymatic Chemistry of Oxazinin A. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208029] [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)
- Victor Aniebok
- University of California Santa Cruz Chemistry and Biochemistry UNITED STATES
| | - Rahul Shingare
- University of California Santa Cruz Chemistry and Biochemistry UNITED STATES
| | - Hsiau Wei-Lee
- University of California Santa Cruz Chemistry and Biochemistry UNITED STATES
| | - Timothy Johnstone
- University of California Santa Cruz Chemistry and Biochemistry UNITED STATES
| | - John MacMillan
- University of California Santa Cruz Chemistry and Biochemistry 1156 High St. 95064 Santa Cruz UNITED STATES
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10
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Su W, Wang TT, Tian X, Han JR, Zhen XL, Fan SM, You YX, Zhang YK, Qiao RX, Cheng Q, Liu S. Stereoselective Dehydroxyboration of Allylic Alcohols to Access ( E)-Allylboronates by a Combination of C-OH Cleavage and Boron Transfer under Iron Catalysis. Org Lett 2021; 23:9094-9099. [PMID: 34780200 DOI: 10.1021/acs.orglett.1c03359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Iron-catalyzed direct SN2' dehydroxyboration of allylic alcohols has been developed to access (E)-stereoselective allylboronates. Allylic alcohols with diverse structures and functional groups, especially derived from natural products, underwent smooth transformation. The six-membered ring transition state formed by allylic alcohols and iron-boron intermediate was indicated to be the key component involved in transfer of the boron group, activation of the C-OH bond, and control of the stereoselectivity.
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Affiliation(s)
- Wei Su
- School of Science, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Ting-Ting Wang
- School of Science, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Xia Tian
- School of Science, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Jian-Rong Han
- School of Science, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Xiao-Li Zhen
- School of Science, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Shi-Ming Fan
- Hebei Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Ya-Xin You
- School of Science, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Yu-Kun Zhang
- School of Science, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Rui-Xiao Qiao
- Hebei Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Qiushi Cheng
- School of Science, Hebei University of Science and Technology, Shijiazhuang 050022, China.,Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, Hebei University of Science and Technology, Shijiazhuang 050022, China
| | - Shouxin Liu
- Hebei Key Laboratory of Molecular Chemistry for Drug, Hebei University of Science and Technology, Shijiazhuang 050022, China
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11
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Carbó JJ, Fernández E. Alkoxide activation of tetra-alkoxy diboron reagents in C-B bond formation: a decade of unpredictable reactivity. Chem Commun (Camb) 2021; 57:11935-11947. [PMID: 34704565 DOI: 10.1039/d1cc05123g] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Any attempt to facilitate a new generation of C-B bonds represents a useful tool in organic synthesis. In addition, if that approach highlights the nucleophilic character of boryl moieties in the absence of transition metal complexes, the challenge to create new reactive platforms becomes an opportunity. We have been deeply involved in the experimental and theoretical validation of C-B bond formation by means of alkoxide activation of tetra-alkoxy diboron reagents and here is presented a convenient guide to understand the concept and the applications.
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Affiliation(s)
- Jorge J Carbó
- Departament de Química Física i Inorgànica, Unversitat Rovira i Virgili (URV), 43007, Spain.
| | - Elena Fernández
- Departament de Química Física i Inorgànica, Unversitat Rovira i Virgili (URV), 43007, Spain.
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12
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Wu L, Kojima C, Lee KH, Morisako S, Lin Z, Yamashita M. Mechanistic study on the reaction of pinB-BMes 2 with alkynes based on experimental investigation and DFT calculations: gradual change of mechanism depending on the substituent. Chem Sci 2021; 12:9806-9815. [PMID: 34349954 PMCID: PMC8293998 DOI: 10.1039/d1sc02863d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 06/16/2021] [Indexed: 12/31/2022] Open
Abstract
Transition metal-free direct and base-catalyzed 1,2-diborations of arylacetylenes using pinB-BMes2 provided a syn/anti-isomeric mixture of diborylalkenes. The kinetic analysis showed that the reaction rate and isomer ratio were affected by reaction conditions and substituents on the aryl ring. DFT calculations indicated that direct addition proceeded via the interaction of acetylene-π with the BMes2 fragment. In contrast, for the base-catalyzed diboration, the previously isolated sp2–sp3 diborane and borataallene were confirmed as stable intermediates by calculations. The whole reaction pathways can be divided into the Bpin-migration and deprotonation steps, where the borataallene should be considered as a common intermediate. It should be noted that the deprotonation step is reversible and affords the kinetically less favoured isomer under the thermodynamic conditions. As a result, the composition of isomeric products, in the base-catalyzed diboration, is attributed to the small difference of activation barriers between direct and base-catalyzed systems. Combination of kinetic and DFT studies revealed a subtle balance for substituent effect toward the regioselectivity of the product in metal-free and base-catalyzed diboration of arylacetylenes.![]()
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Affiliation(s)
- Linlin Wu
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong
| | - Chiemi Kojima
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga, Bunkyo-ku Tokyo 112-8551 Japan
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong
| | - Shogo Morisako
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya Aichi 464-8603 Japan
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya Aichi 464-8603 Japan
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13
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Hirano K, Uchiyama M. Inter‐Element Boration Reactions of Carbon‐Carbon Multiple Bonds
via
Lewis‐Basic Activation of Boron Reagents. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001610] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Keiichi Hirano
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Cluster of Pioneering Research (CPR) Advanced Elements Chemistry Laboratory, RIKEN 2-1 Hirosawa Wako-shi Saitama 351-0198 Japan
- Research Initiative for Supra-Materials (RISM) Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
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14
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Guo K, Kleij AW. Copper-Mediated Dichotomic Borylation of Alkyne Carbonates: Stereoselective Access to (E)-1,2-Diborylated 1,3-Dienes versus Traceless Monoborylation Affording α-Hydroxyallenes. Angew Chem Int Ed Engl 2021; 60:4901-4906. [PMID: 33230901 DOI: 10.1002/anie.202014310] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Indexed: 11/09/2022]
Abstract
A mild copper-mediated protocol has been developed for borylation of alkynyl cyclic carbonates. Depending on the nature of the borylating reaction partner, either stereoselective diborylation of the propargylic surrogate takes place, providing convenient access to (E)-1,2-borylated 1,3-dienes, or traceless monoborylation occurs, which leads to α-hydroxyallenes as the principal product. The dichotomy in this borylation protocol has been scrutinized by several control experiments, illustrating that a relatively small change in the diboron(4) reagent allows for competitive alcohol-assisted protodemetalation to forge an α-hydroxyallene product under ambient conditions.
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Affiliation(s)
- Kun Guo
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Arjan W Kleij
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Catalan Institute of Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
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15
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Guo K, Kleij AW. Copper‐Mediated Dichotomic Borylation of Alkyne Carbonates: Stereoselective Access to (
E
)‐1,2‐Diborylated 1,3‐Dienes versus Traceless Monoborylation Affording α‐Hydroxyallenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Kun Guo
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluís Companys 23 08010 Barcelona Spain
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16
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Miura H, Hachiya Y, Nishio H, Fukuta Y, Toyomasu T, Kobayashi K, Masaki Y, Shishido T. Practical Synthesis of Allyl, Allenyl, and Benzyl Boronates through S N1′-Type Borylation under Heterogeneous Gold Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.0c03771] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hiroki Miura
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
| | - Yuka Hachiya
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Hidenori Nishio
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yohei Fukuta
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tomoya Toyomasu
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Kosa Kobayashi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yosuke Masaki
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
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17
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Zou C, Niu C, Liu X, Zhang C. Recent Advances about Protoboration of Conjugated Dienes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202105058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Pei G, Chen H, Xu W, Chen T, Li J. Diboron-controlled product selectivity switch in copper-catalyzed decarboxylative substitutions of alkynyl cyclic carbonates. Org Chem Front 2021. [DOI: 10.1039/d1qo01411k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
DFT calculations were performed to explore the mechanisms, origins of diboron-controlled divergent product selectivity and stereoselectivity in the copper-catalyzed decarboxylative substitution of alkynyl cyclic carbonates.
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Affiliation(s)
- Guojing Pei
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, Guangdong 510632, P. R. China
| | - Hui Chen
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, Guangdong 510632, P. R. China
| | - Wan Xu
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, Guangdong 510632, P. R. China
| | - Tao Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Juan Li
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, Guangdong 510632, P. R. China
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19
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Liang J, Wang B, Huang C, Ye X, Wen Y. Synthesis of Symmetrical ( E, E)-1,4-Diaryl-1,3-butadienes by One-Pot Method. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Wang X, Wang Y, Huang W, Xia C, Wu L. Direct Synthesis of Multi(boronate) Esters from Alkenes and Alkynes via Hydroboration and Boration Reactions. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03418] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xianjin Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049 People’s Republic of China
| | - Yue Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
| | - Wei Huang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, People’s Republic of China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
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21
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Peck CL, Nekvinda J, Santos WL. Diboration of 3-substituted propargylic alcohols using a bimetallic catalyst system: access to (Z)-allyl, vinyldiboronates. Chem Commun (Camb) 2020; 56:10313-10316. [PMID: 32760935 DOI: 10.1039/d0cc03563g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The diboration of substituted propargylic alcohols has been achieved using a bimetallic Pd/Cu catalyst system. The in situ formation of a pentrafluoroboronic acid intermediate sufficiently activates the C-O bond towards dual catalysis affording (Z)-allyl, vinyldiboronates stereoselectively.
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Affiliation(s)
- Cheryl L Peck
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA.
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22
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Wang M, Shi Z. Methodologies and Strategies for Selective Borylation of C-Het and C-C Bonds. Chem Rev 2020; 120:7348-7398. [PMID: 32597639 DOI: 10.1021/acs.chemrev.9b00384] [Citation(s) in RCA: 177] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Organoborons have emerged as versatile building blocks in organic synthesis to achieve molecular diversity and as carboxylic acid bioisosteres with broad applicability in drug discovery. Traditionally, these compounds are prepared by the substitution of Grignard/lithium reagents with electrophilic boron species and Brown hydroboration. Recent developments have provided new routes for the efficient preparation of organoborons by applying reactions using chemical feedstocks with leaving groups. As compared to the previous methods that used organic halides (I, Br, and Cl), the direct borylation of less reactive C-Het and C-C bonds has become highly important to get efficiency and functional-group compatibility. This Review aims to provide a comprehensive overview of this topic, including (1) C-F bond borylation, (2) C-O bond borylation, (3) C-S bond borylation, (4) C-N bond borylation, and (5) C-C bond borylation. Considerable attention is given to the strategies and mechanisms involved. We expect that this Review will inspire chemists to discover more efficient transformations to expand this field.
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Affiliation(s)
- Minyan Wang
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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23
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Zhou M, Li K, Chen D, Xu R, Xu G, Tang W. Enantioselective Reductive Coupling of Imines Templated by Chiral Diboron. J Am Chem Soc 2020; 142:10337-10342. [PMID: 32459089 DOI: 10.1021/jacs.0c04558] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We herein report a general, practical, and highly efficient method for asymmetric synthesis of a wide range of chiral vicinal diamines via reductive coupling of imines templated by chiral diboron. The protocol features high enantioselectivity and stereospecificity, mild reaction conditions, simple operating procedures, use of readily available starting materials, and a broad substrate scope. The method signifies the generality of diboron-enabled [3,3]-sigmatropic rearrangement.
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Affiliation(s)
- Mingkang Zhou
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Kaidi Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Dongping Chen
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Ronghua Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Guangqing Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.,NingBo Zejun Pharmaceutical Technology Co., Ltd, Hangzhou Bay New District, Ningbo 315336, China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.,School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China.,NingBo Zejun Pharmaceutical Technology Co., Ltd, Hangzhou Bay New District, Ningbo 315336, China
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24
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Gan Y, Hu H, Liu Y. Nickel-Catalyzed Homo- and Cross-Coupling of Allyl Alcohols via Allyl Boronates. Org Lett 2020; 22:4418-4423. [PMID: 32427489 DOI: 10.1021/acs.orglett.0c01424] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A nickel-catalyzed homo- and cross-coupling of allylic alcohols to 1,5-dienes in the presence of B2pin2 with excellent regioselectivity has been developed. Mechanistic studies indicate that the reaction proceeds via sequential nickel-catalyzed borylation of allyl alcohols followed by cross-coupling of the resulting allyl boronates with allyl alcohols. The method was effectively applied to nickel-catalyzed allylation of aldehydes using allylic alcohols directly.
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Affiliation(s)
- Yi Gan
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Hui Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
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25
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Khan I, Luo Z, Xu Y, Xie J, Zhu W, Liu B. Transition Metal‐Free Alkyne‐Aldehyde Reductive C−C Coupling trough Cascade Borylation/Olefin Isomerization. Helv Chim Acta 2020. [DOI: 10.1002/hlca.202000028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Imran Khan
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P.R. China
- School of the Environment and Safety EngineeringJiangsu University Zhenjiang 212013 P.R. China
| | - Zhibin Luo
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P.R. China
| | - Yin Xu
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P.R. China
| | - Jimin Xie
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P.R. China
| | - Weihua Zhu
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P.R. China
| | - Bin Liu
- School of Chemistry and Chemical EngineeringJiangsu University Zhenjiang 212013 P.R. China
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26
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Salvadó O, Fernández E. Tri(boryl)alkanes and Tri(boryl)alkenes: The Versatile Reagents. Molecules 2020; 25:molecules25071758. [PMID: 32290330 PMCID: PMC7180881 DOI: 10.3390/molecules25071758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 11/16/2022] Open
Abstract
The interest of organoboron chemistry in organic synthesis is growing, together with the development of new and versatile polyborated reagents. Here, the preparation of 1,1,1-tri(boryl)alkanes, 1,2,3-tri(boryl)alkanes, 1,1,2-tri(boryl)alkanes, as well as 1,1,2-tri(boryl)alkenes as suitable and accessible polyborated systems is demonstrated as being easily applied in the construction of new carbon-carbon and carbon-heteroatom bonds. Synthetic procedures and limitations have been collected to demonstrate the powerful strategies to construct selective molecules, taking advantages of the easy transformation of carbon-boron bond in multiple functionalities, under the total control of chemo- and stereoselectivity.
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27
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Liu B, Xu Y, Luo Z, Xie J. Reductive Aromatization of Quinols with B 2 pin 2 as Deoxidizing Agent. Chem Asian J 2020; 15:1022-1024. [PMID: 32034862 DOI: 10.1002/asia.202000064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Indexed: 12/23/2022]
Abstract
We have demonstrated B2 pin2 as superior deoxidizing agent for the reductive deoxygenation of quinol derivatives under basic conditions. A wide range of highly functionalized phenols were obtained in good yields including a complex drug molecule, which revealed the high functional group tolerance of this protocol.
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Affiliation(s)
- Bin Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang, 212013, China.,Jurong Ningwu New Material Development Co., Ltd., Zhenjiang, 212405, China
| | - Yin Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang, 212013, China
| | - Zhibin Luo
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang, 212013, China
| | - Jimin Xie
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang, 212013, China
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28
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Mao L, Li C, Xiang L, Fu D, Ma W, Ye Q. Synthesis of Allenyl-Bdan via the Cu(I)-Catalyzed Borylation of Propargylic Alcohols with the Unsymmetric Diboron Reagent (Bpin-Bdan). J Org Chem 2020; 85:2823-2831. [PMID: 31927896 DOI: 10.1021/acs.joc.9b03319] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The synthesis of allenyl-Bdan has been realized via the Cu(I)-catalyzed borylation of propargylic alcohols. This methodology offers a facile and efficient pathway toward allenyboronates with diverse functional groups due to the simple access to the substrates. The substrates bearing ester groups are well-tolerated in the synthesis of allenyl-Bdan under the Lewis acidic conditions. The structures of two allenyl-Bdan were further confirmed via single-crystal X-ray diffraction.
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Affiliation(s)
- Lujia Mao
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China.,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 , Haikou , Hainan 571199 , People's Republic of China
| | - Chunlei Li
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China
| | - Libo Xiang
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China
| | - Dejun Fu
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China
| | - Wangyang Ma
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China
| | - Qing Ye
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , People's Republic of China.,College of Chemistry and Chemical Engineering , Southeast University , Nanjing , Jiangsu 211189 , People's Republic of China
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29
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Kuang Z, Yang K, Zhou Y, Song Q. Base-promoted domino-borylation-protodeboronation strategy. Chem Commun (Camb) 2020; 56:6469-6479. [PMID: 32436551 DOI: 10.1039/d0cc00614a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Since a nucleophilic sp2 boron species can be generated in situ under the combined action of an inorganic base, B2pin2 and methanol, research on base-promoted nucleophilic borylation of unsaturated compounds has attracted significant attention. A series of multi-borylated compounds, such as alkyl 1,2-bis(boronates), gem-diborylalkanes, and 1,1,2-tris(boronates), are constructed based on this strategy. These multi-borylated compounds can in turn undergo selective protodeboronation, creating a variety of useful boron-containing compounds. This Feature article documents the development of base-promoted domino-borylation-protodeboronation (DBP) strategies and their applications in organic synthesis.
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Affiliation(s)
- Zhijie Kuang
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering and College of Chemical Engineering at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China.
| | - Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
| | - Yao Zhou
- College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi, Hubei 435002, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering and College of Chemical Engineering at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China. and Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
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30
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Das KK, Paul S, Panda S. Transition metal-free synthesis of alkyl pinacol boronates. Org Biomol Chem 2020; 18:8939-8974. [DOI: 10.1039/d0ob01721c] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This review systematically outlined the research in the area of transition metal free synthesis of alkyl pinacol boronates, which are versatile and important scaffolds to construct diverse organic compounds.
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Affiliation(s)
- Kanak Kanti Das
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Swagata Paul
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Santanu Panda
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
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31
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Synthesis of anti-vicinal diboronates from diarylethynes and B 2pin 2. Sci Bull (Beijing) 2019; 64:1685-1690. [PMID: 36659782 DOI: 10.1016/j.scib.2019.09.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 08/28/2019] [Accepted: 09/09/2019] [Indexed: 01/21/2023]
Abstract
Anti-vicinal diboronates were fabricated from easily available diarylethynes and B2pin2 via a base-catalyzed domino-borylation-protodeboronation (DBP) strategy under transition-metal-free conditions. Under the standard conditions, reactants with a range of different classes of functional groups on the rings, such as MeO, MeS, CF3O, Me2N, TMS, I, Br, Cl, F, and the thiophene ring, were tolerated. Downstream transformation of the vicinal diboronates provided a facile pathway for obtaining vicinal diols by mild oxidation with NaBO3, and a new deuteriation technique was developed in order to acquire 1,2-diarylethanes-1,2-d2 and 1,2-diarylethanes-1,1,2,2-d4. The new deuteriation strategy developed in this study may provide a new research direction for deuteriation chemistry.
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32
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Bélanger‐Chabot G, Braunschweig H. Hexahalogendiborat‐Dianionen: Eine neue Klasse binärer Borhalogenide. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guillaume Bélanger‐Chabot
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Holger Braunschweig
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
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33
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Bélanger-Chabot G, Braunschweig H. Hexahalodiborate Dianions: A New Family of Binary Boron Halides. Angew Chem Int Ed Engl 2019; 58:14270-14274. [PMID: 31361383 PMCID: PMC7028027 DOI: 10.1002/anie.201906666] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Indexed: 01/05/2023]
Abstract
The electron‐precise binary boron subhalide species [B2X6]2− X=F, Br, I) were synthesized and their structures confirmed by X‐ray crystallography. The existence of the previously claimed [B2Cl6]2−, which had been questioned, was also confirmed by X‐ray crystallography. The dianions are isoelectronic to hexahaloethanes, are subhalide analogues of the well‐known tetrahaloborate anions (BX4−), and are rare examples of molecular electron‐precise binary boron species beyond B2X4, BX3, and [BX4]−.
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Affiliation(s)
- Guillaume Bélanger-Chabot
- Institut für Anorganische Chemie, 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
| | - Holger Braunschweig
- Institut für Anorganische Chemie, 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
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34
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Pécharman AF, Hill MS, McMullon G, McMullin CL, Mahon MF. Snapshots of magnesium-centred diborane heterolysis by an outer sphere S N2 process. Chem Sci 2019; 10:6672-6682. [PMID: 31367321 PMCID: PMC6624991 DOI: 10.1039/c9sc02087j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 05/24/2019] [Indexed: 01/07/2023] Open
Abstract
Reactions of a magnesium diboranate as a source of [Bpin]– anions are initiated by ‘outer sphere’ attack of C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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N bonded substrates.
Reactions of the β-diketiminato magnesium diboranate derivative, [(BDI)Mg{pinB(n-Bu)Bpin}] (BDI = HC{(Me)CNDipp}2; Dipp = 2,6-i-Pr2C6H3), with N,N′-dialkyl and N,N′-diaryl carbodiimides provided the corresponding C-borylated magnesium borylamidinates. This reactivity occurs with the displacement of n-BuBpin and with the apparent addition of a nucleophilic {Bpin} anion to the electrophilic unsaturated carbodiimide carbon centres. In contrast, while analogous reactions of [(BDI)Mg{pinB(n-Bu)Bpin}] with N-alkyl or N-aryl aldimines and ketimines also resulted in facile displacement of n-BuBpin, they provided the organomagnesium products of {Bpin} addition to the imine nitrogen atom rather than the more electrophilic trigonal imine carbon. Computational assessment by density functional theory (DFT) indicated that, although the energetic differences are marginal, the organomagnesium products may be considered as the kinetic outcome of these reactions with respect to the generation of alternative amidomagnesium regioisomers. This latter deduction was borne out by the thermally-induced conversion of two such organomagnesium species to their C-borylated amidomagnesium isomers, both of which occur with negligible entropies of activation indicative of purely intramolecular processes. Detailed analysis by DFT of the reaction of [(BDI)Mg{pinB(n-Bu)Bpin}] with PhN
Created by potrace 1.16, written by Peter Selinger 2001-2019
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CHPh indicated that B–N bond formation is initiated by attack of the imine nitrogen at the three-coordinate boron atom of the diboranate anion rather than the more crowded magnesium centre. Consistent with an effectively spontaneous reaction, the resultant cleavage of the B–B bond of the diboranate unit is accomplished via the traversal of two very modest barriers of only 8.3 and 6.7 kcal mol–1. This analysis was also supportive of a subsequent intramolecular B–N to B–C isomerisation process. Of greater general significance, however, the addition of the {Bpin}– anion to the reducible aldimine is best rationalised as a consequence of the electrophilic character of this three-coordinate boron centre rather than any intrinsic nucleophilicity associated with the B–B bond of the [pinBB(n-Bu)pin]– anion.
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Affiliation(s)
| | - Michael S Hill
- Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , UK . ;
| | - Grace McMullon
- Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , UK . ;
| | - Claire L McMullin
- Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , UK . ;
| | - Mary F Mahon
- Department of Chemistry , University of Bath , Claverton Down , Bath , BA2 7AY , UK . ;
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35
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Morimasa Y, Kabasawa K, Ohmura T, Suginome M. Pyridine‐Based Organocatalysts for Regioselective
syn
‐1,2‐Silaboration of Terminal Alkynes and Allenes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900176] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yohei Morimasa
- Department of Synthetic Chemistry and Biological ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Kosuke Kabasawa
- Department of Synthetic Chemistry and Biological ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Toshimichi Ohmura
- Department of Synthetic Chemistry and Biological ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological ChemistryGraduate School of EngineeringKyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
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36
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Yoshida H, Murashige Y, Osaka I. Copper‐Catalyzed B(dan)‐Installing Allylic Borylation of Allylic Phosphates. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900342] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hiroto Yoshida
- Department of Applied Chemistry, Graduate School of EngineeringHiroshima University Higashi-Hiroshima 739-8527 Japan
| | - Yuya Murashige
- Department of Applied Chemistry, Graduate School of EngineeringHiroshima University Higashi-Hiroshima 739-8527 Japan
| | - Itaru Osaka
- Department of Applied Chemistry, Graduate School of EngineeringHiroshima University Higashi-Hiroshima 739-8527 Japan
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37
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Maza RJ, Davenport E, Miralles N, Carbó JJ, Fernández E. Transition-Metal-Free Allylic Borylation of 1,3-Dienes. Org Lett 2019; 21:2251-2255. [DOI: 10.1021/acs.orglett.9b00531] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ricardo J. Maza
- Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo l, 43007 Tarragona, Spain
| | - Elliot Davenport
- Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo l, 43007 Tarragona, Spain
- Department of Chemistry, Edinburgh University, Edinburgh EH9 3FJ, United Kingdom
| | - Núria Miralles
- Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo l, 43007 Tarragona, Spain
| | - Jorge J. Carbó
- Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo l, 43007 Tarragona, Spain
| | - Elena Fernández
- Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo l, 43007 Tarragona, Spain
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38
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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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39
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Chandrashekar HB, Maji A, Halder G, Banerjee S, Bhattacharyya S, Maiti D. Photocatalyzed borylation using water-soluble quantum dots. Chem Commun (Camb) 2019; 55:6201-6204. [DOI: 10.1039/c9cc01737b] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, we report the use of water-soluble MPA-capped quantum dot (QD) photocatalysts for the borylation of diazonium salts in the presence of water.
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Affiliation(s)
| | - Arun Maji
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Ganga Halder
- Department of Chemical Sciences and Centre for Advanced Functional Materials
- Indian Institute of Science Education and Research (IISER) Kolkata
- Mohanpur – 741246
- India
| | - Sucheta Banerjee
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Sayan Bhattacharyya
- Department of Chemical Sciences and Centre for Advanced Functional Materials
- Indian Institute of Science Education and Research (IISER) Kolkata
- Mohanpur – 741246
- India
| | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
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40
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Recent Synthesis Developments of Organoboron Compounds via Metal-Free Catalytic Borylation of Alkynes and Alkenes. Molecules 2018; 24:molecules24010101. [PMID: 30597884 PMCID: PMC6337501 DOI: 10.3390/molecules24010101] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 12/20/2022] Open
Abstract
Diboron reagents have been traditionally regarded as "Lewis acids", which can react with simple Lewis base to create a significant nucleophilic character in one of boryl moieties. In particular, bis(pinacolato)diboron (B₂pin₂) reacts with simple Lewis bases, such as N-heterocyclic carbenes (NHCs), phosphines and alkoxides. This review focuses on the application of trivalent nucleophilic boryl synthon in the selective preparation of organoboron compounds, mainly through metal-free catalytic diboration and the β-boration reactions of alkynes and alkenes.
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41
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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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42
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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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43
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Yamashita M. Characteristic Reactivity of Highly Lewis-Acidic Aryl-Substituted Diborane(4) toward Multiple Bonds. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.1223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University
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44
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Kuang Z, Gao G, Song Q. Base-catalyzed diborylation of alkynes: synthesis and applications of cis-1,2-bis(boryl)alkenes. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9344-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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45
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García L, Sendra J, Miralles N, Reyes E, Carbó JJ, Vicario JL, Fernández E. Transition‐Metal‐Free Stereoselective Borylation of Allenamides. Chemistry 2018; 24:14059-14063. [DOI: 10.1002/chem.201803004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Indexed: 01/10/2023]
Affiliation(s)
- Lorena García
- Department of Organic Chemistry IIUniversity of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Jana Sendra
- Department Química Física I InorgànicaUniversity Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Núria Miralles
- Department Química Física I InorgànicaUniversity Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Efraim Reyes
- Department of Organic Chemistry IIUniversity of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Jorge J. Carbó
- Department Química Física I InorgànicaUniversity Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Jose L. Vicario
- Department of Organic Chemistry IIUniversity of the Basque Country (UPV/EHU) P.O. Box 644 48080 Bilbao Spain
| | - Elena Fernández
- Department Química Física I InorgànicaUniversity Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
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46
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Kuang Z, Chen H, Yan J, Yang K, Lan Y, Song Q. Base-Catalyzed Borylation/B–O Elimination of Propynols and B2pin2 Delivering Tetrasubstituted Alkenylboronates. Org Lett 2018; 20:5153-5157. [DOI: 10.1021/acs.orglett.8b02077] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zhijie Kuang
- Institute of Next Generation Matter Transformation, College of Chemical Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Haohua Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
| | - Jianxiang Yan
- Institute of Next Generation Matter Transformation, College of Chemical Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Kai Yang
- Institute of Next Generation Matter Transformation, College of Chemical Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, P. R. China
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
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47
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Cuenca AB, Shishido R, Ito H, Fernández E. Transition-metal-free B-B and B-interelement reactions with organic molecules. Chem Soc Rev 2018; 46:415-430. [PMID: 27942683 DOI: 10.1039/c6cs00692b] [Citation(s) in RCA: 248] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This review is a guided tour along the activation modes and reactivity of B-B, B-Si, B-N, B-S, B-Se and B-P reagents, in the absence of any transition metal complex. Here are disclosed the general concepts related to the homolytic and heterolytic cleavage of B-B and B-interelement bonds, as well as the generation of new C-B and C-interelement bonds, in a selective way. The greener consequences of these novel routes facilitate the gram scale preparations of target functionalised organic compounds. Intrinsic data about the suggested mechanisms and spectroscopic evidence that supports the innovative theories are provided along the review. Since this is a stimulating area of work that has emerged within the last decade, this overview serves as the basis to understand the new trends and hopefully to generate inspiration for future discoveries in the field.
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Affiliation(s)
- Ana B Cuenca
- Dept Física Química e Inorgánica, University Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain. and Dept. Química Orgánica, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, Barcelona 08017, Spain
| | - Ryosuke Shishido
- Division of Chemical Process Engineering, Graduate School of Engineering Hokkaido University, Sapporo, 060-8628, Japan.
| | - Hajime Ito
- Division of Chemical Process Engineering, Graduate School of Engineering Hokkaido University, Sapporo, 060-8628, Japan.
| | - Elena Fernández
- Dept Física Química e Inorgánica, University Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain.
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48
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Zhou Y, Wang H, Liu Y, Zhao Y, Zhang C, Qu J. Iron-catalyzed boration of allylic alcohols with H3BO3 as an additive. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2017.1422764] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yuhan Zhou
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, P. R. China
| | - Huan Wang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, P. R. China
| | - Yang Liu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, P. R. China
| | - Yilong Zhao
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, P. R. China
| | - Chunxia Zhang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, P. R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, P. R. China
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49
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Katsuma Y, Asakawa H, Yamashita M. Reactivity of highly Lewis acidic diborane(4) towards pyridine and isocyanide: formation of boraalkene-pyridine complex and ortho-functionalized pyridine derivatives. Chem Sci 2018; 9:1301-1310. [PMID: 29675176 PMCID: PMC5887101 DOI: 10.1039/c7sc04759b] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/10/2017] [Indexed: 12/14/2022] Open
Abstract
The reaction of pinB-BMes2 (pin = pinacolato, Mes = 2,4,6-Me3C6H2) with Xyl-NC (Xyl = 2,6-Me2C6H3) and pyridine results in the formation of a pyridine-coordinated boraalkene that exhibits an intense color caused by an intramolecular charge-transfer interaction. In the presence of an excess of pyridine, the ortho C-H bond of pyridine was selectively functionalized to afford a quinoid compound or an isocyanide-coupled product. Based on the concentration effect, the reaction stoichiometry, and previously reported DFT calculations, a reaction mechanism that involves several rearrangement reactions was proposed. Using the present method, substituted pyridines and N-heterocycles afforded the corresponding functionalized derivatives. A subsequent hydrolysis of one of the resulting products furnished an aminomethylated pyridine derivative in two steps from parent pyridine.
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Affiliation(s)
- Yuhei Katsuma
- Department of Applied Chemistry , Faculty of Science and Engineering , Chuo University , 1-13-27 Kasuga , Bunkyo-ku , 112-8551 , Tokyo , Japan
| | - Hiroki Asakawa
- Department of Applied Chemistry , Faculty of Science and Engineering , Chuo University , 1-13-27 Kasuga , Bunkyo-ku , 112-8551 , Tokyo , 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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Davenport E, Fernandez E. Transition-metal-free synthesis of vicinal triborated compounds and selective functionalisation of the internal C–B bond. Chem Commun (Camb) 2018; 54:10104-10107. [PMID: 30124705 DOI: 10.1039/c8cc06153j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,2,3-Triborated compounds can be prepared by simple nucleophilic borylation of 1,3-dienes, without the assistance of metal catalysts.
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Affiliation(s)
- Elliot Davenport
- Department Química Física i Inorgànica
- University Rovira i Virgili
- Tarragona
- Spain
- Department Chemistry
| | - Elena Fernandez
- Department Química Física i Inorgànica
- University Rovira i Virgili
- Tarragona
- Spain
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