1
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Trofimova A, White B, Diaz DB, Širvinskas MJ, Lough A, Dudding T, Yudin AK. A Boron Scan of Ethyl Acetoacetate Leads to Versatile Building Blocks. Angew Chem Int Ed Engl 2024; 63:e202319842. [PMID: 38277239 DOI: 10.1002/anie.202319842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 01/28/2024]
Abstract
Discovered in the 19th century, ethyl acetoacetate has been central to the development of organic chemistry, including its pedagogy and applications. In this study, we present borylated derivatives of this venerable molecule. A boron handle has been installed at either α ${{\rm \alpha }}$ - or β ${\beta }$ -position of acetoacetate by homologation of acyl-MIDA (N-methyliminodiacetic acid) boronates with diazoacetates. Either alkyl or boryl groups were found to migrate with regiochemistry being a function of the steric bulk of the diazo species. Boryl β ${{\rm \beta }}$ -ketoesters can be further modified into borylated pyrazolones and oximes, thereby expanding the synthetic toolkit and offering opportunities for additional modifications.
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Affiliation(s)
- Alina Trofimova
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
| | - Brandon White
- Department of Chemistry, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Diego B Diaz
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
| | - Martynas J Širvinskas
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
| | - Alan Lough
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
| | - Travis Dudding
- Department of Chemistry, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Andrei K Yudin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
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2
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Qiao H, Michalland J, Huang Q, Zard SZ. A Versatile Route to Acyl (MIDA)Boronates. Chemistry 2023; 29:e202302235. [PMID: 37477346 DOI: 10.1002/chem.202302235] [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: 07/18/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 07/22/2023]
Abstract
A modular approach to highly functional acyl (MIDA)boronates is described. It involves the generation of the hitherto unknown radical derived from acetyl (MIDA)boronate and its capture by various alkenes, including electronically unbiased, unactivated alkenes. In contrast to the anion of acetyl (MIDA)boronate, which has not so far been employed in synthesis, the corresponding radical is well behaved and readily produced from the novel α-xanthyl acetyl (MIDA)boronate. This shelf-stable, easily prepared solid is a convenient acyl (MIDA)boronate transfer agent that provides a direct entry to numerous otherwise inaccessible structures, including latent 1,4-dicarbonyl derivatives that can be transformed into B(MIDA) substituted pyrroles and furans. A competition experiment indicated the acyl (MIDA)boronate substituted radical to be more stable than the all-carbon acetonyl radical but somewhat less reactive in additions to alkenes.
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Affiliation(s)
- Hui Qiao
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole polytechnique, 91128, Palaiseau Cedex, France
| | - Jean Michalland
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole polytechnique, 91128, Palaiseau Cedex, France
| | - Qi Huang
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole polytechnique, 91128, Palaiseau Cedex, France
| | - Samir Z Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole polytechnique, 91128, Palaiseau Cedex, France
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3
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Zhang X, Friedrich A, Marder TB. Copper-Catalyzed Borylation of Acyl Chlorides with an Alkoxy Diboron Reagent: A Facile Route to Acylboron Compounds. Chemistry 2022; 28:e202201329. [PMID: 35510606 PMCID: PMC9400893 DOI: 10.1002/chem.202201329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Indexed: 12/15/2022]
Abstract
Herein, the copper‐catalyzed borylation of readily available acyl chlorides with bis(pinacolato)diboron, (B2pin2) or bis(neopentane glycolato)diboron (B2neop2) is reported, which provides stable potassium acyltrifluoroborates (KATs) in good yields from the acylboronate esters. A variety of functional groups are tolerated under the mild reaction conditions (room temperature) and substrates containing different carbon‐skeletons, such as aryl, heteroaryl and primary, secondary, tertiary alkyl are applicable. Acyl N‐methyliminodiacetic acid (MIDA) boronates can also been accessed by modification of the workup procedures. This process is scalable and also amenable to the late‐stage conversion of carboxylic acid‐containing drugs into their acylboron analogues, which have been challenging to prepare previously. A catalytic mechanism is proposed based on in situ monitoring of the reaction between p‐toluoyl chloride and an NHC‐copper(I) boryl complex as well as the isolation of an unusual lithium acylBpinOBpin compound as a key intermediate.
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Affiliation(s)
- Xiaolei Zhang
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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4
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Zuo B, Shao H, Zheng Y, Ma Y, Li W, Huang M, Deng Q. The Core‐Shell Magnetic Mesoporous Microspheres Immobilized NHC‐Palladacycles: An Efficient and Recyclable Catalyst for Suzuki–Miyaura Cross‐Coupling of Pharmaceutical Synthesis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bin Zuo
- University of Shanghai for Science and Technology School of Materials and Chemistry No. 334 Jungong Road, Shanghai, 200093, P.R. China 200093 Shanghai CHINA
| | - Han Shao
- University of Shanghai for Science and Technology School of Materials and Chemistry Shanghai 200093, China. Shanghai CHINA
| | - Yan Zheng
- University of Shanghai for Science and Technology School of Materials and Chemistry Shanghai 200093, China. Shanghai CHINA
| | - Yunhua Ma
- University of Shanghai for Science and Technology School of Materials and Chemistry Shanghai 200093, China. Shanghai CHINA
| | - Wanfang Li
- University of Shanghai for Science and Technology School of Materials and Chemistry Shanghai 200093, China. Shanghai CHINA
| | - Mingxian Huang
- University of Shanghai for Science and Technology School of Materials and Chemistry Shanghai 200093, China. Shanghai CHINA
| | - Qinyue Deng
- University of Shanghai for Science and Technology School of Materials and Chemistry No. 334 Jungong Road 200093 Shanghai CHINA
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5
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Grygorenko OO, Volochnyuk DM, Vashchenko BV. Emerging Building Blocks for Medicinal Chemistry: Recent Synthetic Advances. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100857] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Oleksandr O. Grygorenko
- Enamine Ltd. Chervonotkatska 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Dmitriy M. Volochnyuk
- Enamine Ltd. Chervonotkatska 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
- Institute of Organic Chemistry National Academy of Sciences of Ukraine Murmanska Street 5 Kyiv 02094 Ukraine
| | - Bohdan V. Vashchenko
- Enamine Ltd. Chervonotkatska 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
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6
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Soor HS, Diaz DB, Burton KI, Yudin AK. Synthesis of Fluorinated Aminoalkylboronic Acids from Amphoteric α‐Boryl Aldehydes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Harjeet S. Soor
- Department of Chemistry University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Diego B. Diaz
- Department of Chemistry University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Katherine I. Burton
- Department of Chemistry University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Andrei K. Yudin
- Department of Chemistry University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
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7
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Soor HS, Diaz DB, Burton KI, Yudin AK. Synthesis of Fluorinated Aminoalkylboronic Acids from Amphoteric α-Boryl Aldehydes. Angew Chem Int Ed Engl 2021; 60:16366-16371. [PMID: 33977627 DOI: 10.1002/anie.202104133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Indexed: 02/06/2023]
Abstract
Our ongoing search for underdeveloped functional group combinations has brought to light α-fluorinated aminoalkylboronic acids, a new class of molecules featuring the B-CF linkage. These compounds can now be generated from secondary amines and α-boryl aldehydes through electrophilic fluorination of boryl enamines or enamides. Fluorinated β-aminoalkylboronic acids show no signs of degradation under ambient conditions. We present evidence for the involvement of chair-like motifs, favored over the acyclic forms by up to 1.7±0.1 kcal mol-1 in water and held together by an amine-boronate hydrogen bond. Fluorinated β-aminoalkylboronic acids are stable over a wide pH range and are characterized by a pKa of 3.4, which is the lowest of any alkylboronic acid.
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Affiliation(s)
- Harjeet S Soor
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
| | - Diego B Diaz
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
| | - Katherine I Burton
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
| | - Andrei K Yudin
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON, M5S 3H6, Canada
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8
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Lin S, Wang L, Sharma A. Acrylic boronate: a multifunctional C3 building block for catalytic synthesis of rare organoborons and chemoselective heterobifunctional ligations. Chem Sci 2021; 12:7924-7929. [PMID: 34168846 PMCID: PMC8188605 DOI: 10.1039/d1sc00905b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 04/26/2021] [Indexed: 12/31/2022] Open
Abstract
A novel C3 acylboron building block; acrylic boronate was successfully prepared and its versatility for catalytic synthesis of several previously inaccessible organoborons is described. Cross-metathesis and Pd-catalyzed coupling of acrylic boronate enabled two complementary routes to highly functionalized α,β-unsaturated acylborons and two new types of conjugated borylated products: α,β,γ,δ-unsaturated and bis-α,β unsaturated acylborons. The synthetic application of α,β-unsaturated acylborons was demonstrated for the first time, thereby providing a general and highly regioselective route to medicinally important 3-boryl pyrazoles. Acrylic boronate also provided a unique bis-electrophilic platform for rapid and chemoselective labeling of cysteines with acylboron tags which are potentially useful for site-selective functionalization and orthogonal ligation of proteins.
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Affiliation(s)
- Shengjia Lin
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology Hoboken NJ 07030 USA
| | - Lucia Wang
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology Hoboken NJ 07030 USA
| | - Abhishek Sharma
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology Hoboken NJ 07030 USA
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9
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Wang C, Lai Z, Xie H, Cui S. Triazenyl Alkynes as Versatile Building Blocks in Multicomponent Reactions: Diastereoselective Synthesis of β‐Amino Amides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014686] [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)
- Chaorong Wang
- Institute of Drug Discovery and Design College of Pharmaceutical Sciences Zhejiang University 866 Yuhangtang Road, Hangzhou 310058 Zhejiang Province China
| | - Zhencheng Lai
- Institute of Drug Discovery and Design College of Pharmaceutical Sciences Zhejiang University 866 Yuhangtang Road, Hangzhou 310058 Zhejiang Province China
| | - Hujun Xie
- School of Food Science and Biotechnology Zhejiang Gongshang University 18 Xuezheng Street, Xiasha Higher Education Campus, Hangzhou 310018 Zhejiang Province China
| | - Sunliang Cui
- Institute of Drug Discovery and Design College of Pharmaceutical Sciences Zhejiang University 866 Yuhangtang Road, Hangzhou 310058 Zhejiang Province China
- Key Laboratory of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry Chinese Academy of Sciences China
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10
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Tien CH, Trofimova A, Holownia A, Kwak BS, Larson RT, Yudin AK. Carboxyboronate as a Versatile In Situ CO Surrogate in Palladium-Catalyzed Carbonylative Transformations. Angew Chem Int Ed Engl 2021; 60:4342-4349. [PMID: 33085182 DOI: 10.1002/anie.202010211] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 10/08/2020] [Indexed: 12/22/2022]
Abstract
The application of carboxy-MIDA-boronate (MIDA=N-methyliminodiacetic acid) as an in situ CO surrogate for various palladium-catalyzed transformations is described. Carboxy-MIDA-boronate was previously shown to be a bench-stable boron-containing building block for the synthesis of borylated heterocycles. The present study demonstrates that, in addition to its utility as a precursor to heterocycle synthesis, carboxy-MIDA-boronate is an excellent in situ CO surrogate that is tolerant of reactive functionalities such as amines, alcohols, and carbon-based nucleophiles. Its wide functional-group compatibility is highlighted in the palladium-catalyzed aminocarbonylation, alkoxycarbonylation, carbonylative Sonogashira coupling, and carbonylative Suzuki-Miyaura coupling of aryl halides. A variety of amides, esters, (hetero)aromatic ynones, and bis(hetero)aryl ketones were synthesized in good-to-excellent yields in a one-pot fashion.
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Affiliation(s)
- Chieh-Hung Tien
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
| | - Alina Trofimova
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
| | - Aleksandra Holownia
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
| | - Branden S Kwak
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
| | - Reed T Larson
- Process Research & Development, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Andrei K Yudin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
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11
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Yang L, Tan D, Fan W, Liu X, Wu J, Huang Z, Li Q, Wang H. Photochemical Radical C–H Halogenation of Benzyl N‐Methyliminodiacetyl (MIDA) Boronates: Synthesis of α‐Functionalized Alkyl Boronates. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011872] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ling Yang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Dong‐Hang Tan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Wen‐Xin Fan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Xu‐Ge Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Jia‐Qiang Wu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Zhi‐Shu Huang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Qingjiang Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Honggen Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
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12
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Wang C, Lai Z, Xie H, Cui S. Triazenyl Alkynes as Versatile Building Blocks in Multicomponent Reactions: Diastereoselective Synthesis of β-Amino Amides. Angew Chem Int Ed Engl 2021; 60:5147-5151. [PMID: 33289272 DOI: 10.1002/anie.202014686] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/02/2020] [Indexed: 12/31/2022]
Abstract
Multicomponent reactions (MCRs) are powerful tool for the construction of polyfunctional molecules in an operationally simple and atom-economic manner, and the discovery of novel MCRs requests various building blocks. Herein, triazenyl alkynes were disclosed as versatile building blocks in a multicomponent reaction with carboxylic acids, aldehydes and anilines to furnish β-amino amides with the achievement of high diastereoselectivity and structural diversity. In this process, triazenyl alkynes were bifunctional so that the alkyne moiety acts as C2 fragment and triazene serves as directing group to modulate the transition state thus achieving high diastereoselectivity, in consistence with DFT calculations. Furthermore, the triazenyl group also enables diverse late-stage transformation. This protocol opens a new vision for the discovery of building block and rational design of MCRs.
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Affiliation(s)
- Chaorong Wang
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China
| | - Zhencheng Lai
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China
| | - Hujun Xie
- School of Food Science and Biotechnology, Zhejiang Gongshang University, 18 Xuezheng Street, Xiasha Higher Education Campus, Hangzhou, 310018, Zhejiang Province, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China.,Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, China
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13
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Wienhold M, Molloy JJ, Daniliuc CG, Gilmour R. Coumarins by Direct Annulation: β‐Borylacrylates as Ambiphilic C
3
‐Synthons. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Max Wienhold
- Organisch Chemisches Intitut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Germany
| | - John J. Molloy
- Organisch Chemisches Intitut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Germany
| | - Constantin G. Daniliuc
- Organisch Chemisches Intitut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Germany
| | - Ryan Gilmour
- Organisch Chemisches Intitut Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Germany
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14
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Wienhold M, Molloy JJ, Daniliuc CG, Gilmour R. Coumarins by Direct Annulation: β-Borylacrylates as Ambiphilic C 3 -Synthons. Angew Chem Int Ed Engl 2021; 60:685-689. [PMID: 32975367 PMCID: PMC7839779 DOI: 10.1002/anie.202012099] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Indexed: 12/26/2022]
Abstract
Modular β-borylacrylates have been validated as programmable, ambiphilic C3 -synthons in the cascade annulation of 2-halo-phenol derivatives to generate structurally and electronically diverse coumarins. Key to this [3+3] disconnection is the BPin unit which serves a dual purpose as both a traceless linker for C(sp2 )-C(sp2 ) coupling, and as a chromophore extension to enable inversion of the alkene geometry via selective energy transfer catalysis. Mild isomerisation is a pre-condition to access 3-substituted coumarins and provides a handle for divergence. The method is showcased in the synthesis of representative natural products that contain this venerable chemotype. Facile entry into π-expanded estrone derivatives modified at the A-ring is disclosed to demonstrate the potential of the method in bioassay development or in drug repurposing.
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Affiliation(s)
- Max Wienhold
- Organisch Chemisches IntitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - John J. Molloy
- Organisch Chemisches IntitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - Constantin G. Daniliuc
- Organisch Chemisches IntitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
| | - Ryan Gilmour
- Organisch Chemisches IntitutWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149MünsterGermany
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15
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Tanbakouchian A, Kianmehr E. Palladium-catalyzed regioselective direct C–H bond alkoxycarbonylation of 2-arylimidazo[1,2- a]pyridines. NEW J CHEM 2021. [DOI: 10.1039/d1nj00605c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A palladium catalyzed method for regioselective alkoxycarbonylation of imidazo[1,2-a]pyridines using W(CO)6, as the CO source, and alcohols has been reported.
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Affiliation(s)
| | - Ebrahim Kianmehr
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
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16
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Tien C, Trofimova A, Holownia A, Kwak BS, Larson RT, Yudin AK. Carboxyboronate as a Versatile In Situ CO Surrogate in Palladium‐Catalyzed Carbonylative Transformations. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chieh‐Hung Tien
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto ON M5S 3H6 Canada
| | - Alina Trofimova
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto ON M5S 3H6 Canada
| | - Aleksandra Holownia
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto ON M5S 3H6 Canada
| | - Branden S. Kwak
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto ON M5S 3H6 Canada
| | - Reed T. Larson
- Process Research & Development Merck & Co., Inc. Rahway NJ 07065 USA
| | - Andrei K. Yudin
- Davenport Research Laboratories Department of Chemistry University of Toronto 80 St. George Street Toronto ON M5S 3H6 Canada
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17
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Yang L, Tan D, Fan W, Liu X, Wu J, Huang Z, Li Q, Wang H. Photochemical Radical C–H Halogenation of Benzyl N‐Methyliminodiacetyl (MIDA) Boronates: Synthesis of α‐Functionalized Alkyl Boronates. Angew Chem Int Ed Engl 2020; 60:3454-3458. [DOI: 10.1002/anie.202011872] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/12/2020] [Indexed: 01/16/2023]
Affiliation(s)
- Ling Yang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Dong‐Hang Tan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Wen‐Xin Fan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Xu‐Ge Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Jia‐Qiang Wu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Zhi‐Shu Huang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Qingjiang Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
| | - Honggen Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 China
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18
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Ivon YM, Mazurenko IV, Kuchkovska YO, Voitenko ZV, Grygorenko OO. Formyl MIDA Boronate: C 1 Building Block Enables Straightforward Access to α-Functionalized Organoboron Derivatives. Angew Chem Int Ed Engl 2020; 59:18016-18022. [PMID: 32621386 DOI: 10.1002/anie.202007651] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/24/2020] [Indexed: 12/20/2022]
Abstract
Formyl MIDA boronate has been known to be an elusive type of acylboronate that has not been obtained to date. In this work, an approach to the one-pot preparation and chemical transformations of formyl MIDA boronate were developed to provide new types of α-functionalized organoboron compounds. Among them are acylboronate reagents which present boron-substituted analogues of ynones and β-dicarbonyl compounds. The developed synthetic procedures, utilizing formyl MIDA boronate, are tolerant to diverse functional groups, making this reagent an advantageous C1 building block for extending the scope of organoboron chemistry.
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Affiliation(s)
- Yevhen M Ivon
- Enamine Ltd., Chervonotkatska Street 78, Kyiv, 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine
| | - Ivan V Mazurenko
- Enamine Ltd., Chervonotkatska Street 78, Kyiv, 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine
| | - Yuliya O Kuchkovska
- Enamine Ltd., Chervonotkatska Street 78, Kyiv, 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine
| | - Zoya V Voitenko
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine
| | - Oleksandr O Grygorenko
- Enamine Ltd., Chervonotkatska Street 78, Kyiv, 02094, Ukraine.,Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv, 01601, Ukraine
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19
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Wu D, Taguchi J, Tanriver M, Bode JW. Synthesis of Acylboron Compounds. Angew Chem Int Ed Engl 2020; 59:16847-16858. [PMID: 32510826 DOI: 10.1002/anie.202005050] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Indexed: 12/11/2022]
Abstract
Acylboron compounds are emerging as versatile functional groups with applications in multiple research fields. Their synthesis, however, is still challenging and requires innovative methods. This Minireview provides an overview on the obstacles of acylboron synthesis and highlights notable advances within the last three years on new strategies to overcome the challenges posed by the formation of acyl-boron bonds.
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Affiliation(s)
- Dino Wu
- Laboratory of Organic Chemistry, Eidgenössische Technische Hochschule (ETH) Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Jumpei Taguchi
- Laboratory of Organic Chemistry, Eidgenössische Technische Hochschule (ETH) Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Matthias Tanriver
- Laboratory of Organic Chemistry, Eidgenössische Technische Hochschule (ETH) Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Jeffrey W Bode
- Laboratory of Organic Chemistry, Eidgenössische Technische Hochschule (ETH) Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
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20
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Apte CN, Diaz DB, Adrianov T, Yudin AK. Grafting Bis(heteroaryl) Motifs into Ring Structures. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chirag N. Apte
- Davenport Research Laboratories; Department of Chemistry; University of Toronto; 80 St. George Street M5S3H6 Toronto ON Canada
| | - Diego B. Diaz
- Davenport Research Laboratories; Department of Chemistry; University of Toronto; 80 St. George Street M5S3H6 Toronto ON Canada
| | - Timur Adrianov
- Davenport Research Laboratories; Department of Chemistry; University of Toronto; 80 St. George Street M5S3H6 Toronto ON Canada
| | - Andrei K. Yudin
- Davenport Research Laboratories; Department of Chemistry; University of Toronto; 80 St. George Street M5S3H6 Toronto ON Canada
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21
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Ivon YM, Mazurenko IV, Kuchkovska YO, Voitenko ZV, Grygorenko OO. Formyl MIDA Boronate: C
1
Building Block Enables Straightforward Access to α‐Functionalized Organoboron Derivatives. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yevhen M. Ivon
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Ivan V. Mazurenko
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Yuliya O. Kuchkovska
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Zoya V. Voitenko
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
- Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
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22
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Affiliation(s)
- Dino Wu
- Laboratory of Organic Chemistry Eidgenössische Technische Hochschule (ETH) Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Jumpei Taguchi
- Laboratory of Organic Chemistry Eidgenössische Technische Hochschule (ETH) Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Matthias Tanriver
- Laboratory of Organic Chemistry Eidgenössische Technische Hochschule (ETH) Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
| | - Jeffrey W. Bode
- Laboratory of Organic Chemistry Eidgenössische Technische Hochschule (ETH) Zürich Vladimir-Prelog-Weg 3 8093 Zürich Switzerland
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