1
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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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2
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Paul S, Mondal R, Geetharani K. Synthesis of α-Seleno Boronates via Diboration of Carbonyl Compounds. Chem Asian J 2023; 18:e202300761. [PMID: 37750433 DOI: 10.1002/asia.202300761] [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: 08/30/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 09/27/2023]
Abstract
A method has been described for accessing α-seleno alkyl boronates. The selenoboration was achieved via the diboration of carbonyl compounds to give α-oxyl boronates, which then undergo 1,2-metalate rearrangement in the presence of lithium selenolates and trifluoroacetic anhydride (TFAA). A variety of structurally diverse substrates were compatible with this protocol and efficiently provides difunctionalized products from simple starting materials. The presence of the boronic ester in the resulting organoselenium compounds serves as a versatile synthetic handle for various functionalizations. Mechanistic studies revealed that the binding of selenium nucleophile to both the boron centers in α-oxyl boronate esters.
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Affiliation(s)
- Sufal Paul
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore, 560012, Bangalore, INDIA
| | - Rahul Mondal
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore, 560012, Bangalore, INDIA
| | - K Geetharani
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore, 560012, Bangalore, INDIA
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3
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Corral Suarez C, Colomer I. Trifluoromethylarylation of alkenes using anilines. Chem Sci 2023; 14:12083-12090. [PMID: 37969609 PMCID: PMC10631225 DOI: 10.1039/d3sc03868h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/19/2023] [Indexed: 11/17/2023] Open
Abstract
Nitrogen containing compounds, such as anilines, are some of the most widespread and useful chemical species, although their high and unselective reactivity has prevented their incorporation into many interesting transformations, such as the functionalization of alkenes. Herein we report a method that allows the trifluoromethylarylation of alkenes using anilines, for the first time, with no need for additives, transition metals, photocatalysts or an excess of reagents. An in-depth mechanistic study reveals the key role of hexafluoroisopropanol (HFIP) as a unique solvent, establishing a hydrogen bonding network with aniline and trifluoromethyl reagent, that is responsible for the altered reactivity and exquisite selectivity. This work uncovers a new mode of reactivity that involves the use of abundant anilines as a non-prefunctionalized aromatic source and the simultaneous activation of trifluoromethyl hypervalent iodine reagent.
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Affiliation(s)
- Carlos Corral Suarez
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
- IMDEA Nanociencia, Faraday 9 28049 Madrid Spain
| | - Ignacio Colomer
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
- IMDEA Nanociencia, Faraday 9 28049 Madrid Spain
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4
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Manna S, Paul S, Kong WY, Aich D, Sahoo R, Tantillo DJ, Panda S. Stereodivergent Zweifel Olefination and its Mechanistic Dichotomy. Angew Chem Int Ed Engl 2023; 62:e202309136. [PMID: 37495925 DOI: 10.1002/anie.202309136] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 07/28/2023]
Abstract
Stereoselective Zweifel olefination using boronate complexes carrying two different reactive π-systems was achieved to synthesize vinyl heteroarenes and conjugated 1,3-dienes in good yield and up to 100 % stereoselectivity, which remains unexplored until now. Most importantly, we report the unprecedented formation of E vs. Z-vinyl heteroarenes for different heteroarenes under identical conditions. Density functional theory (DFT) investigations unveil the mechanistic dichotomy between olefin and heteroarene activation followed by 1,2-migration, leading to E or Z-vinyl heteroarenes respectively. We also report a previously unknown reversal of stereoselectivity by using 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) as an electrophile. The Zweifel olefination using a boronate complex that carries two different olefins was previously unexplored due to significant challenges associated with the site-selective activation of olefins. We have solved this problem and reported the site-selective activation of olefins for the stereoselective synthesis of 1,3-dienes.
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Affiliation(s)
- Samir Manna
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Swagata Paul
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Wang-Yeuk Kong
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Debasis Aich
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Rupam Sahoo
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Santanu Panda
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
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5
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McGettigan JE, Ready JM. Diastereoselective Alkylation of Activated Nitrogen Heterocycles with Alkenyl Boronate Complexes. Angew Chem Int Ed Engl 2023; 62:e202216961. [PMID: 36780188 PMCID: PMC10073296 DOI: 10.1002/anie.202216961] [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: 11/18/2022] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 02/14/2023]
Abstract
Alkenyl boronate complexes react with acylated quinolines and isoquinolines via 1,2-metalate rearrangement to give alkylated, dearomatized heterocycles in good yields, diastereoselectivities, and regioselectivities. This multi-component coupling is highly modular and can be used to access a wide scope of heterocyclic scaffolds. Chiral boronic esters made through this methodology possess high synthetic potential and can be transformed into various functional groups in one step without racemization.
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Affiliation(s)
- James E McGettigan
- 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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6
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Li YJ, Liu DG, Ren JH, Gong TJ, Fu Y. Photocatalytic Alkyl Radical Addition Tandem Oxidation of Alkenyl Borates. J Org Chem 2023; 88:4325-4333. [PMID: 36940141 DOI: 10.1021/acs.joc.2c02923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Photocatalytic oxidation is a popular transformation way for organic synthesis and is widely applied in academia and industry. Herein, we report a blue light-induced alkylation-oxidation tandem reaction for the synthesis of diverse ketones by combining alkyl radical addition and oxidation of alkenyl borates. This reaction shows excellent functional group compatibility in acceptable yields, and diversity of radical precursors is applicable.
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Affiliation(s)
- Yu-Jie Li
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei, Anhui 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, P. R. China
| | - De-Guang Liu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei, Anhui 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, P. R. China
| | - Jin-Hu Ren
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei, Anhui 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, P. R. China
| | - Tian-Jun Gong
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei, Anhui 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, P. R. China
| | - Yao Fu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei, Anhui 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, P. R. China
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7
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Shinde GH, Sundén H. Boron-Mediated Regioselective Aromatic C-H Functionalization via an Aryl BF 2 Complex. Chemistry 2023; 29:e202203505. [PMID: 36383388 DOI: 10.1002/chem.202203505] [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: 11/11/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/17/2022]
Abstract
An efficient regioselective functionalization of 2-aryl-heteroarenes and aryl aldehydes via an azaaryl BF2 complex has been developed. Mechanistically the reaction comprises fluoride to bromide ligand exchange on an aryl boron species and consecutive C-B bond cleavage to deliver a broad range of functionalized products. The reaction is high yielding, has a broad substrate scope where several different heteroarenes can be functionalized with chloro, bromo, iodo, hydroxyl, amine and BF2 in a highly regioselective fashion. The method can be applied for late-stage functionalization or for rapid skeleton remodeling with for instance cross-couplings.
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Affiliation(s)
- Ganesh H Shinde
- Department of Chemistry and Molecular Biology, University of Gothenburg, 412 96, Gothenburg, Sweden
| | - Henrik Sundén
- Department of Chemistry and Molecular Biology, University of Gothenburg, 412 96, Gothenburg, Sweden.,Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96, Gothenburg, Sweden
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8
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Davis CR, Fu Y, Liu P, Ready JM. Mechanistic Basis for the Iridium-Catalyzed Enantioselective Allylation of Alkenyl Boronates. J Am Chem Soc 2022; 144:16118-16130. [PMID: 36036508 DOI: 10.1021/jacs.2c06493] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Iridium(phosphoramidite) complexes catalyze an enantio- and diastereoselective three-component coupling reaction of alkenyl boronic esters, organolithium reagents, and secondary allylic carbonates. The reaction proceeds through an allylation-induced 1,2-metalate shift of the alkenyl boronate to form non-adjacent stereocenters. Mechanistic investigations outline the overall catalytic cycle and reveal trends in reactivity and selectivity. Analysis of relative stereochemistry in products derived from a variety of 1,1-disubtituted alkenyl boronates provides insight into the transition state of the addition and indicates a concerted pathway. Kinetic analysis of the reaction revealed the kinetic order dependence in boronate, the catalyst, and both the slow- and fast-reacting enantiomer of allylic carbonate as well as the turnover-limiting step of the reaction. Determination of nucleophile-specific parameters N and sN for alkenyl boronate complexes enabled comparison to other classes of nucleophiles. DFT calculations indicate the addition of the alkenyl boronate to the cationic Ir(π-allyl) intermediate and the 1,2-metalate shift occur in a concerted mechanism. The stereoselectivity is determined by ligand-substrate steric repulsions and dispersion interactions in the syn addition transition state. Hammett studies supported the computational results with regard to electronic trends observed with both aryl-derived alkenyl boronates and aryl carbonates.
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Affiliation(s)
- Colton R Davis
- Department of Biochemistry, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390-9038, United States
| | - Yue Fu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Joseph M Ready
- Department of Biochemistry, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Texas 75390-9038, United States
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9
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Fairchild ME, Noble A, Aggarwal VK. Diastereodivergent Synthesis of Cyclopentyl Boronic Esters Bearing Contiguous Fully Substituted Stereocenters. Angew Chem Int Ed Engl 2022; 61:e202205816. [PMID: 35639345 PMCID: PMC9542923 DOI: 10.1002/anie.202205816] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Indexed: 01/02/2023]
Abstract
The synthesis of molecules bearing two or more contiguous, quaternary stereocenters is challenging, owing to the difficulty in controlling stereochemistry whilst simultaneously constructing a sterically congested motif. Herein, we report the electrophile-induced ring contractive 1,2-metallate rearrangement of 6-membered cyclic alkenyl boronate complexes for the synthesis of cyclopentyl boronic esters bearing two contiguous, fully substituted stereocenters with high levels of stereocontrol. Remarkably, simple variation of the reaction solvent enabled their diastereodivergent construction with facile access to complementary diastereomeric pairs. The utility of our methodology is demonstrated in the asymmetric total synthesis of (+)-herbertene-1,14-diol.
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Affiliation(s)
| | - Adam Noble
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
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10
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Wang H, Han W, Noble A, Aggarwal VK. Dual Nickel/Photoredox-Catalyzed Site-Selective Cross-Coupling of 1,2-Bis-Boronic Esters Enabled by 1,2-Boron Shifts. Angew Chem Int Ed Engl 2022; 61:e202207988. [PMID: 35779000 PMCID: PMC9543306 DOI: 10.1002/anie.202207988] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 11/30/2022]
Abstract
Site-selective transition-metal-catalyzed mono-deboronative cross-couplings of 1,2-bis-boronic esters are valuable methods for the synthesis of functionalized organoboron compounds. However, such cross-couplings are limited to reaction of the sterically less hindered primary boronic ester. Herein, we report a nickel/photoredox-catalyzed mono-deboronative arylation of 1,2-bis-boronic esters that is selective for coupling of the more sterically hindered secondary/tertiary position. This is achieved by taking advantage of a 1,2-boron shift of primary β-boryl radicals to the thermodynamically favored secondary/tertiary radicals, which are subsequently intercepted by the nickel catalyst to enable arylation. The mild conditions are amenable to a broad range of aryl halides to give β-aryl boronic ester products in good yields and with high regioselectivity. This method also allows stereodivergent coupling of cyclic cis-1,2-bis-boronic esters to give trans-substituted products.
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Affiliation(s)
- Hui Wang
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
- Key Laboratory of Functional Molecular Solids (Ministry of Education)Anhui Key Laboratory of Molecular Based MaterialsCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhu241002China
| | - Wangyujing Han
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
| | - Adam Noble
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
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11
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Wang H, Han W, Noble A, Aggarwal VK. Dual Nickel/Photoredox‐Catalyzed Site‐Selective Cross‐Coupling of 1,2‐Bis‐Boronic Esters Enabled by 1,2‐Boron Shifts. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Wang
- University of Bristol School of Chemistry School of Chemistry UNITED KINGDOM
| | - Wangyujing Han
- University of Bristol School of Chemistry School of Chemistry UNITED KINGDOM
| | - Adam Noble
- University of Bristol School of Chemistry School of Chemistry UNITED KINGDOM
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12
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Fairchild ME, Noble A, Aggarwal VK. Diastereodivergent Synthesis of Cyclopentyl Boronic Esters Bearing Contiguous Fully Substituted Stereocenters. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Molly E. Fairchild
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Adam Noble
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
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13
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Zhang G, Zeng H, Zheng S, Neary MC, Dub PA. Vanadium-Catalyzed Stereo- and Regioselective Hydroboration of Alkynes to Vinyl Boronates. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Guoqi Zhang
- Department of Sciences, John Jay College and PhD in Chemistry Program, The Graduate Center of City University of New York, New York, New York 10019, United States
| | - Haisu Zeng
- Department of Sciences, John Jay College and PhD in Chemistry Program, The Graduate Center of City University of New York, New York, New York 10019, United States
- Department of Chemistry, Hunter College, City University of New York, New York, New York 10065, United States
| | - Shengping Zheng
- Department of Chemistry, Hunter College, City University of New York, New York, New York 10065, United States
| | - Michelle C. Neary
- Department of Chemistry, Hunter College, City University of New York, New York, New York 10065, United States
| | - Pavel A. Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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14
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Taniguchi T. Substituent Effects of Tetracoordinate Boron in Organic Synthesis. Chemistry 2022; 28:e202104333. [DOI: 10.1002/chem.202104333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Indexed: 12/15/2022]
Affiliation(s)
- Tsuyoshi Taniguchi
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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15
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Ma X, Kuang Z, Song Q. Recent Advances in the Construction of Fluorinated Organoboron Compounds. JACS AU 2022; 2:261-279. [PMID: 35252978 PMCID: PMC8889561 DOI: 10.1021/jacsau.1c00129] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Indexed: 05/05/2023]
Abstract
Fluorinated organoboron compounds are important synthetic building blocks that combine the unique characteristics of a fluorinated motif with the versatile synthetic applications of organoboron moiety. This review article guides the research on fluorinated organoboron compounds mainly from four aspects in recent years: selective monodefluoroborylation of polyfluoroarenes and polyfluoroalkenes, selective borylation of fluorinated substrates, selective fluorination of organoboron compounds, and borofluorination of alkynes/olefins. In addition, this review will provide a necessary guidance and inspiration for the research on the valuable synthetic building block fluorinated organoboron compounds.
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Affiliation(s)
- Xingxing Ma
- Key
Laboratory of Molecule Synthesis and Function Discovery, Fujian Province
University, College of Chemistry at Fuzhou
University, Fuzhou, Fujian 350108, China
| | - Zhijie Kuang
- Institute
of Next Generation Matter Transformation, College of Materials Science
Engineering & Chemical Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, China
| | - Qiuling Song
- Key
Laboratory of Molecule Synthesis and Function Discovery, Fujian Province
University, College of Chemistry at Fuzhou
University, Fuzhou, Fujian 350108, China
- Institute
of Next Generation Matter Transformation, College of Materials Science
Engineering & Chemical Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, China
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16
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Mizoguchi H, Kamada H, Morimoto K, Yoshida R, Sakakura A. Annulative Coupling of Vinylboronic Esters: Aryne-Triggered 1,2-Metallate Rearrangement. Chem Sci 2022; 13:9580-9585. [PMID: 36091886 PMCID: PMC9400639 DOI: 10.1039/d2sc02623f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/25/2022] [Indexed: 11/27/2022] Open
Abstract
A stereoselective annulative coupling of a vinylboronic ester ate-complex with arynes producing cyclic borinic esters has been developed. An annulation reaction that proceeded through the formation of two C–C bonds and a C–B bond was realized by exploiting a 1,2-metallate rearrangement of boronate triggered by the addition of a vinyl group to the strained triple bond of an aryne. The generated aryl anion would then cyclize to a boron atom to complete the annulation cascade. The annulated borinic ester could be converted to boronic acids and their derivatives by oxidation, halogenation, and cross-coupling. Particularly, halogenation and Suzuki–Miyaura coupling proceeded in a site-selective fashion and produced highly substituted alkylboronic acid derivatives. A stereoselective annulative coupling of a vinylboronic ester ate-complex with arynes producing cyclic borinic esters has been developed.![]()
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Affiliation(s)
- Haruki Mizoguchi
- Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Hidetoshi Kamada
- Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Kazuki Morimoto
- Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Ryuji Yoshida
- Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
| | - Akira Sakakura
- Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka Kita-ku Okayama 700-8530 Japan
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17
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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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18
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You C, Studer A. Three-component 1,2-carboamination of vinyl boronic esters via amidyl radical induced 1,2-migration. Chem Sci 2021; 12:15765-15769. [PMID: 35003609 PMCID: PMC8654000 DOI: 10.1039/d1sc05811h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/16/2021] [Indexed: 12/25/2022] Open
Abstract
Three-component 1,2-carboamination of vinyl boronic esters with alkyl/aryl lithium reagents and N-chloro-carbamates/carboxamides is presented. Vinylboron ate complexes generated in situ from the boronic ester and an organo lithium reagent are shown to react with readily available N-chloro-carbamates/carboxamides to give valuable 1,2-aminoboronic esters. These cascades proceed in the absence of any catalyst upon simple visible light irradiation. Amidyl radicals add to the vinylboron ate complexes followed by oxidation and 1,2-alkyl/aryl migration from boron to carbon to give the corresponding carboamination products. These practical cascades show high functional group tolerance and accordingly exhibit broad substrate scope. Gram-scale reaction and diverse follow-up transformations convincingly demonstrate the synthetic potential of this method.
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Affiliation(s)
- Cai You
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Corrensstraβe 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Corrensstraβe 40 48149 Münster Germany
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19
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Segura L, Massad I, Ogasawara M, Marek I. Stereodivergent Access to Trisubstituted Alkenylboronate Esters through Alkene Isomerization. Org Lett 2021; 23:9194-9198. [PMID: 34766777 PMCID: PMC8650100 DOI: 10.1021/acs.orglett.1c03513] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
![]()
We report an efficient
method for the preparation of synthetically
valuable trisubstituted alkenylboronate esters through alkene
isomerization of their readily available 1,1-disubstituted regioisomeric
counterparts. Either stereoisomer of the target alkenylboronate
motif can be obtained at will from the same starting material by employing
different isomerization catalysts.
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Affiliation(s)
- Lucas Segura
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 3200009, Israel
| | - Itai Massad
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 3200009, Israel
| | - Masamichi Ogasawara
- Department of Natural Science, Graduate School of Science and Technology, Tokushima University, Tokushima 770-8506, Japan
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 3200009, Israel
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20
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Hazra S, Johansson Seechurn CCC, Handa S, Colacot TJ. The Resurrection of Murahashi Coupling after Four Decades. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03564] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Susanta Hazra
- 2320 S. Brook St., Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | | | - Sachin Handa
- 2320 S. Brook St., Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Thomas J. Colacot
- Millipore Sigma (Business of Merck KGaA, Darmstadt, Germany), 6000 N. Teutonia Avenue, Milwaukee, Wisconsin 53209, United States
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21
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Rivera‐Chao E, Fañanás‐Mastral M. Stereoselective Synthesis of Highly Substituted 1,3-Dienes via "à la carte" Multifunctionalization of Borylated Dendralenes. Angew Chem Int Ed Engl 2021; 60:16922-16927. [PMID: 34043856 PMCID: PMC8362018 DOI: 10.1002/anie.202104741] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/12/2021] [Indexed: 01/05/2023]
Abstract
Despite the high relevance of 1,3-dienes, stereoselective methods to access tetrasubstituted conjugated dienes are still scarce. We here report an efficient and modular approach that provides access to multifunctional tetrasubstituted 1,3-dienes with excellent levels of regio- and stereoselectivity. This methodology is based on a tetracomponent reaction between a borylated dendralene, an organolithium reagent and two different electrophiles. Mechanistic studies reveal that this transformation proceeds through a regio- and stereoselective carbolithiation/electrophilic trapping of an in situ formed dendralenic boron-ate complex, followed by a stereoretentive halodeborylation. The ease in which complex structural dienes can be accessed and their synthetic versatility highlight the importance and utility of this method.
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Affiliation(s)
- Eva Rivera‐Chao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - Martín Fañanás‐Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
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22
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Rivera‐Chao E, Fañanás‐Mastral M. Stereoselective Synthesis of Highly Substituted 1,3‐Dienes via “à la carte” Multifunctionalization of Borylated Dendralenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Eva Rivera‐Chao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Martín Fañanás‐Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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23
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Mizoguchi H, Sakakura A. Strain-release Difunctionalization of C–C σ- and π-bonds of an Organoboron Ate-complex through 1,2-Metallate Rearrangement. CHEM LETT 2021. [DOI: 10.1246/cl.200926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Haruki Mizoguchi
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Akira Sakakura
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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24
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Mizoguchi H, Seriu M, Sakakura A. Synthesis of functionalized cyclopropylboronic esters based on a 1,2-metallate rearrangement of cyclopropenylboronate. Chem Commun (Camb) 2020; 56:15545-15548. [PMID: 33241828 DOI: 10.1039/d0cc07134j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A procedure converting tribromocyclopropane to densely functionalized β-selenocyclopropylboronic ester using the 1,2-metallate rearrangement of a boron ate-complex has been developed. Treatment of an in situ-generated cyclopropenylboronic ester ate-complex with phenylselenenyl chloride triggered stereospecific rearrangement to produce functionalized cyclopropanes. DFT calculations for 1,2-metallate rearrangement suggested that the reaction proceeds through a seleniranium intermediate.
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Affiliation(s)
- Haruki Mizoguchi
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.
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25
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Matviitsuk A, Panger JL, Denmark SE. Katalytische enantioselektive Sulfenofunktionalisierung von Alkenen: Entwicklung und aktuelle Fortschritte. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anastassia Matviitsuk
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
| | - Jesse L. Panger
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
| | - Scott E. Denmark
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
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26
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Matviitsuk A, Panger JL, Denmark SE. Catalytic, Enantioselective Sulfenofunctionalization of Alkenes: Development and Recent Advances. Angew Chem Int Ed Engl 2020; 59:19796-19819. [PMID: 32452077 PMCID: PMC7936392 DOI: 10.1002/anie.202005920] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 12/13/2022]
Abstract
The last decade has witnessed a burgeoning of new methods for the enantioselective vicinal difunctionalization of alkenes initiated by electrophilic sulfenyl group transfer. The addition of sulfenium ions to alkenes results in the generation of chiral, non-racemic thiiranium ions. These highly reactive intermediates are susceptible to attack by a myriad of nucleophiles in a stereospecific ring-opening event to afford anti 1,2-sulfenofunctionalized products. The practical application of sulfenium ion transfer has been enabled by advances in the field of Lewis base catalysis. This Review will chronicle the initial discovery and characterization of thiiranium ion intermediates followed by the determination of their configurational stability and the challenges of developing enantioselective variants. Once the framework for the reactivity and stability of thiiranium ions has been established, a critical analysis of pioneering studies will be presented. Finally, a comprehensive discussion of modern synthetic applications will be categorized around the type of nucleophile employed for sulfenofunctionalization.
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Affiliation(s)
- Anastassia Matviitsuk
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
| | - Jesse L Panger
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
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27
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You C, Studer A. Synthesis of 1,3-Bis-(boryl)alkanes through Boronic Ester Induced Consecutive Double 1,2-Migration. Angew Chem Int Ed Engl 2020; 59:17245-17249. [PMID: 32579295 PMCID: PMC7540398 DOI: 10.1002/anie.202007541] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Indexed: 01/03/2023]
Abstract
A general and efficient approach for the preparation of 1,3-bis-(boryl)alkanes is introduced. It is shown that readily generated vinylboron ate complexes react with commercially available ICH2 Bpin to valuable 1,3-bis-(boryl)alkanes. The introduced transformation, which is experimentally easy to conduct, shows broad substrate scope and high functional-group tolerance. Mechanistic studies reveal that the reaction does not proceed via radical intermediates. Instead, an unprecedented boronic ester induced sequential bis-1,2-migration cascade is suggested.
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Affiliation(s)
- Cai You
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
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28
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Bennett SH, Fawcett A, Denton EH, Biberger T, Fasano V, Winter N, Aggarwal VK. Difunctionalization of C-C σ-Bonds Enabled by the Reaction of Bicyclo[1.1.0]butyl Boronate Complexes with Electrophiles: Reaction Development, Scope, and Stereochemical Origins. J Am Chem Soc 2020; 142:16766-16775. [PMID: 32885974 DOI: 10.1021/jacs.0c07357] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Difunctionalization reactions of C-C σ-bonds have the potential to streamline access to molecules that would otherwise be difficult to prepare. However, the development of such reactions is challenging because C-C σ-bonds are typically unreactive. Exploiting the high ring-strain energy of polycyclic carbocycles is a common strategy to weaken and facilitate the reaction of C-C σ-bonds, but there are limited examples of highly strained C-C σ-bonds being used in difunctionalization reactions. We demonstrate that highly strained bicyclo[1.1.0]butyl boronate complexes (strain energy ca. 65 kcal/mol), which were prepared by reacting boronic esters with bicyclo[1.1.0]butyl lithium, react with electrophiles to achieve the diastereoselective difunctionalization of the strained central C-C σ-bond of the bicyclo[1.1.0]butyl unit. The reaction shows broad substrate scope, with a range of different electrophiles and boronic esters being successfully employed to form a diverse set of 1,1,3-trisubstituted cyclobutanes (>50 examples) with high diastereoselectivity. The high diastereoselectivity observed has been rationalized based on a combination of experimental data and DFT calculations, which suggests that separate concerted and stepwise reaction mechanisms are operating, depending upon the migrating substituent and electrophile used.
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Affiliation(s)
- Steven H Bennett
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Alexander Fawcett
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Elliott H Denton
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Tobias Biberger
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Valerio Fasano
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Nils Winter
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
| | - Varinder K Aggarwal
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, United Kingdom
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29
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You C, Studer A. Synthesis of 1,3‐Bis‐(boryl)alkanes through Boronic Ester Induced Consecutive Double 1,2‐Migration. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007541] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Cai You
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstrasse 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstrasse 40 48149 Münster Germany
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30
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Shen F, Lu L, Shen Q. Electrophilic fluoroalkylthiolation induced diastereoselective and stereospecific 1,2-metalate migration of alkenylboronate complexes. Chem Sci 2020; 11:8020-8024. [PMID: 34123079 PMCID: PMC8163329 DOI: 10.1039/d0sc03039b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A transition metal free process for conjunctive functionalization of alkenylboron ate-complexes with electrophilic fluoroalkylthiolating reagents is described, affording β-trifluoroalkylthiolated and difluoroalkylthiolated boronic esters in good yield and excellent diastereoselectivity. The potential applicability of the method was demonstrated by the preparation of a difluoromethylthiolated mimic 12 of a potential drug molecule PF-4191834 for the treatment of asthma. A transition metal free process for conjunctive functionalization of alkenylboron ate-complexes with electrophilic fluoroalkylthiolating reagents affords β-tri- and difluoroalkylthiolated boronic esters in good yield and diastereoselectivity.![]()
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Affiliation(s)
- Feng Shen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Long Lu
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences China
| | - Qilong Shen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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31
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Yu S, Jing C, Noble A, Aggarwal VK. 1,3‐Difunctionalizations of [1.1.1]Propellane via 1,2‐Metallate Rearrangements of Boronate Complexes. Angew Chem Int Ed Engl 2020; 59:3917-3921. [DOI: 10.1002/anie.201914875] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Songjie Yu
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Changcheng Jing
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Adam Noble
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
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32
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Yu S, Jing C, Noble A, Aggarwal VK. 1,3‐Difunctionalizations of [1.1.1]Propellane via 1,2‐Metallate Rearrangements of Boronate Complexes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914875] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Songjie Yu
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Changcheng Jing
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Adam Noble
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
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33
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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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34
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Hu J, Cheng B, Yang X, Loh T. Transition‐Metal‐Free Deaminative Vinylation of Alkylamines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900576] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiefeng Hu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
| | - Bo Cheng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
| | - Xianyu Yang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
| | - Teck‐Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
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35
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Law C, Meng Y, Koo SM, Morken JP. Catalytic Conjunctive Coupling of Carboxylic Acid Derivatives with 9-BBN-Derived Ate Complexes. Angew Chem Int Ed Engl 2019; 58:6654-6658. [PMID: 30893498 PMCID: PMC6502666 DOI: 10.1002/anie.201901927] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Indexed: 12/14/2022]
Abstract
β-Boryl carbonyl compounds are produced by a Ni-catalyzed cross-coupling of vinylboron "ate" complexes and acid chloride or acid anhydride electrophiles. The reactions are efficient, being complete in as little as two minutes, and can be applied to a broad range of substrates.
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Affiliation(s)
- Chunyin Law
- Department of Chemistry, Boston College, 2609 Beacon Street, Chestnut Hill, MA, 02467, USA
| | - Yan Meng
- Department of Chemistry, Boston College, 2609 Beacon Street, Chestnut Hill, MA, 02467, USA
| | - Seung Moh Koo
- Department of Chemistry, Boston College, 2609 Beacon Street, Chestnut Hill, MA, 02467, USA
| | - James P Morken
- Department of Chemistry, Boston College, 2609 Beacon Street, Chestnut Hill, MA, 02467, USA
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36
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Xing L, Zhang Y, Li B, Du Y. In Situ Formation of RSCl/ArSeCl and Their Application to the Synthesis of 4-Chalcogenylisocumarins/Pyrones from o-(1-Alkynyl)benzoates and (Z)-2-Alken-4-ynoates. Org Lett 2019; 21:3620-3624. [DOI: 10.1021/acs.orglett.9b01046] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Linlin Xing
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yong Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Bing Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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37
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Gregson CHU, Ganesh V, Aggarwal VK. Strain Release of Donor–Acceptor Cyclopropyl Boronate Complexes. Org Lett 2019; 21:3412-3416. [DOI: 10.1021/acs.orglett.9b01152] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Venkataraman Ganesh
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
| | - Varinder K. Aggarwal
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
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38
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Law C, Meng Y, Koo SM, Morken JP. Catalytic Conjunctive Coupling of Carboxylic Acid Derivatives with 9‐BBN‐Derived Ate Complexes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901927] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Chunyin Law
- Department of ChemistryBoston College 2609 Beacon Street Chestnut Hill MA 02467 USA
| | - Yan Meng
- Department of ChemistryBoston College 2609 Beacon Street Chestnut Hill MA 02467 USA
| | - Seung Moh Koo
- Department of ChemistryBoston College 2609 Beacon Street Chestnut Hill MA 02467 USA
| | - James P. Morken
- Department of ChemistryBoston College 2609 Beacon Street Chestnut Hill MA 02467 USA
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39
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Carreras J, Caballero A, Pérez PJ. Alkenyl Boronates: Synthesis and Applications. Chem Asian J 2019; 14:329-343. [DOI: 10.1002/asia.201801559] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/11/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Javier Carreras
- Departamento de Química Orgánica y Química InorgánicaUniversidad de Alcalá (IQAR) 28805-Alcalá de Henares Madrid Spain
| | - Ana Caballero
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC CIQSO-Centro de Investigación en Química Sostenible and Departamento de QuímicaUniversidad de Huelva 21007- Huelva Spain
| | - Pedro J. Pérez
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC CIQSO-Centro de Investigación en Química Sostenible and Departamento de QuímicaUniversidad de Huelva 21007- Huelva Spain
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40
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Music A, Hoarau C, Hilgert N, Zischka F, Didier D. Katalysatorfreie enantiospezifische Olefinierung mithilfe von in situ generierten Organocer‐Spezies. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810327] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Arif Music
- Department ChemieLudwig-Maximillians-Universität Butenandtstraße 5–13 81377 München Deutschland
| | - Clément Hoarau
- Ecole Polytechnique Route de Saclay 91128 Palaiseau Cedex Frankreich
| | - Nicolas Hilgert
- Department ChemieLudwig-Maximillians-Universität Butenandtstraße 5–13 81377 München Deutschland
| | - Florian Zischka
- Department ChemieLudwig-Maximillians-Universität Butenandtstraße 5–13 81377 München Deutschland
| | - Dorian Didier
- Department ChemieLudwig-Maximillians-Universität Butenandtstraße 5–13 81377 München Deutschland
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41
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Music A, Hoarau C, Hilgert N, Zischka F, Didier D. Catalyst-Free Enantiospecific Olefination with In Situ Generated Organocerium Species. Angew Chem Int Ed Engl 2018; 58:1188-1192. [PMID: 30468288 DOI: 10.1002/anie.201810327] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/22/2018] [Indexed: 02/03/2023]
Abstract
Described is the in situ formation of triorganocerium reagents and their application in catalyst-free Zweifel olefinations. These unique cerium species were generated through novel exchange reactions of organohalides with n-Bu3 Ce reagents. The adequate electronegativity of cerium allowed for compensating the disadvantages of both usually functional-group-sensitive organolithium species and less reactive organomagnesium reagents. Exchange reactions were performed on aryl and alkenyl bromides, enabling enantiospecific transformations of chiral boron pinacol esters. Finally, these new organocerium species were engaged in selective 1,2-additions onto enolisable and sterically hindered ketones.
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Affiliation(s)
- Arif Music
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Clément Hoarau
- Ecole Polytechnique, Route de Saclay, 91128, Palaiseau Cedex, France
| | - Nicolas Hilgert
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Florian Zischka
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Dorian Didier
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstraße 5-13, 81377, Munich, Germany
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42
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Tao Z, Robb KA, Panger JL, Denmark SE. Enantioselective, Lewis Base-Catalyzed Carbosulfenylation of Alkenylboronates by 1,2-Boronate Migration. J Am Chem Soc 2018; 140:15621-15625. [PMID: 30411878 DOI: 10.1021/jacs.8b10288] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A catalytic, enantioselective method for the preparation of chiral, non-racemic, alkylboronic esters bearing two vicinal stereogenic centers is described. The reaction proceeds via a 1,2-migration of a zwitterionic thiiranium-boronate complex to give exclusively anti carbosulfenylation products. A broad scope of aryl groups migrate with good yield and excellent enantioselectivity (up to 99:1 e.r.). Similarly, a range of di- and trisubstituted alkenylboronic esters are competent reaction partners. This method provides access to both secondary and tertiary chiral alkylboronic esters.
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Affiliation(s)
- Zhonglin Tao
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
| | - Kevin A Robb
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
| | - Jesse L Panger
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
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43
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Liu S, Zeng X, Hammond GB, Xu B. Mild Base Promoted Nucleophilic Substitution of Unactivated
sp
3
‐Carbon Electrophiles with Alkenylboronic Acids. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800826] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shiwen Liu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 People's Republic of China
| | - Xiaojun Zeng
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 People's Republic of China
| | - Gerald B. Hammond
- Department of Chemistry University of Louisville Louisville, KY 40292 USA
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 People's Republic of China
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44
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Armstrong RJ, Nandakumar M, Dias RMP, Noble A, Myers EL, Aggarwal VK. Enantiodivergent Synthesis of Allenes by Point-to-Axial Chirality Transfer. Angew Chem Int Ed Engl 2018; 57:8203-8208. [PMID: 29719111 PMCID: PMC6033179 DOI: 10.1002/anie.201804446] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Indexed: 11/11/2022]
Abstract
An enantiodivergent method for the synthesis of multiply substituted allenes is described. Highly enantioenriched, point-chiral boronic esters were synthesized by homologation of α-seleno alkenyl boronic esters with lithiated carbamates and eliminated to form axially chiral allene products. By employing either oxidative or alkylative conditions, both syn and anti elimination could be achieved with complete stereospecificity. The process enables the synthesis of either M or P allenes from a single isomer of a point-chiral precursor and can be employed for the enantioselective assembly of di-, tri-, and tetrasubstituted allenes.
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Affiliation(s)
- Roly J. Armstrong
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
| | | | - Rafael M. P. Dias
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
| | - Adam Noble
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
| | - Eddie L. Myers
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
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45
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Armstrong RJ, Nandakumar M, Dias RMP, Noble A, Myers EL, Aggarwal VK. Enantiodivergent Synthesis of Allenes by Point‐to‐Axial Chirality Transfer. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804446] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Roly J. Armstrong
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
| | | | - Rafael M. P. Dias
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Adam Noble
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Eddie L. Myers
- School of ChemistryUniversity of Bristol Cantock's Close Bristol BS8 1TS UK
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46
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Zhurakovskyi O, Dias RMP, Noble A, Aggarwal VK. Stereo- and Regiocontrolled Methylboration of Terminal Alkynes. Org Lett 2018; 20:3136-3139. [PMID: 29741904 PMCID: PMC6007961 DOI: 10.1021/acs.orglett.8b01252] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A scalable and operationally simple synthesis of trisubstituted alkenyl boronic esters has been achieved using a Zr-catalyzed carboalumination of terminal alkynes followed by in situ transmetalation with i-PrOBpin. The products are formed in good yields and with excellent regioselectivity and perfect stereoselectivity. The new procedure provides a significant improvement over the previously reported syntheses.
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Affiliation(s)
| | - Rafael M P Dias
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
| | - Adam Noble
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
| | - Varinder K Aggarwal
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
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47
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Silvi M, Schrof R, Noble A, Aggarwal VK. Enantiospecific Three-Component Alkylation of Furan and Indole. Chemistry 2018; 24:4279-4282. [PMID: 29411914 PMCID: PMC5900874 DOI: 10.1002/chem.201800527] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Indexed: 12/16/2022]
Abstract
Furan‐ and indole‐derived boronate complexes react with alkyl iodides under radical (photoredox) or polar (SN2) conditions to generate three‐component alkylation products with high efficiency and complete stereospecificity. The methodology allows the incorporation of versatile functional groups such as nitriles, ketones, esters, sulfones, and amides, providing rapid access to complex chiral heteroaromatic molecules in enantioenriched form. Interestingly, while indolyl boronate complexes react directly with alkyl halides in a polar pathway, furyl boronates require photoredox catalysis. Careful mechanistic analysis revealed that the boronate complex not only serves as a substrate in the reaction but also acts as a reductive quencher for the excited state of the photocatalyst.
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Affiliation(s)
- Mattia Silvi
- School of Chemistry, University of Bristol, Cantock's Close, BS8 1TS, Bristol, United Kingdom
| | - Raffael Schrof
- School of Chemistry, University of Bristol, Cantock's Close, BS8 1TS, Bristol, United Kingdom
| | - Adam Noble
- School of Chemistry, University of Bristol, Cantock's Close, BS8 1TS, Bristol, United Kingdom
| | - Varinder K Aggarwal
- School of Chemistry, University of Bristol, Cantock's Close, BS8 1TS, Bristol, United Kingdom
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48
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Chierchia M, Law C, Morken JP. Nickel-Catalyzed Enantioselective Conjunctive Cross-Coupling of 9-BBN Borates. Angew Chem Int Ed Engl 2017; 56:11870-11874. [PMID: 28742944 PMCID: PMC5699474 DOI: 10.1002/anie.201706719] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Indexed: 11/07/2022]
Abstract
Catalytic enantioselective conjunctive cross-coupling between 9-BBN borate complexes and aryl electrophiles can be accomplished with Ni salts in the presence of a chiral diamine ligand. The reactions furnish chiral 9-BBN derivatives in an enantioselective fashion and these are converted to chiral alcohols and amines, or engaged in other stereospecific C-C bond forming reactions.
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Affiliation(s)
- Matteo Chierchia
- Department of Chemistry, Boston College, 2609 Beacon Street, Chestnut Hill, MA, 02467, USA
| | - Chunyin Law
- Department of Chemistry, Boston College, 2609 Beacon Street, Chestnut Hill, MA, 02467, USA
| | - James P Morken
- Department of Chemistry, Boston College, 2609 Beacon Street, Chestnut Hill, MA, 02467, USA
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49
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Chierchia M, Law C, Morken JP. Nickel-Catalyzed Enantioselective Conjunctive Cross-Coupling of 9-BBN Borates. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706719] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Matteo Chierchia
- Department of Chemistry; Boston College; 2609 Beacon Street Chestnut Hill MA 02467 USA
| | - Chunyin Law
- Department of Chemistry; Boston College; 2609 Beacon Street Chestnut Hill MA 02467 USA
| | - James P. Morken
- Department of Chemistry; Boston College; 2609 Beacon Street Chestnut Hill MA 02467 USA
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