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Bischof T, Wieprecht N, Fuchs S, Endres L, Krummenacher I, Michel M, Mihm C, Braunschweig H, Finze M. Unlocking Heteroaromatic Ring Systems through Chalcogen Insertion into Boroles. Inorg Chem 2023; 62:21329-21335. [PMID: 38048693 DOI: 10.1021/acs.inorgchem.3c03403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
In this work, we report the reactivity of various annulated borole derivatives toward chalcogen (O, S, and Se) insertion. Among a series of 9-borafluorenes with different boron substituents (Ph, Br, or o-carboranyl) and a mixed thiophene-benzene-fused derivative, only the 9-o-carboranyl-substituted 9-borafluorene yielded the complete set of chalcogen-containing heteroarenes, including the first 1,2-selenaborinine derivative. To evaluate the aromaticity of this heterocyclic analogue of phenanthrene, nucleus-independent chemical shift (NICS) values were computed and compared to those of its lighter group 16 congeners.
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Affiliation(s)
- Tobias Bischof
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Nele Wieprecht
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Sonja Fuchs
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Lukas Endres
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Ivo Krummenacher
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Maximilian Michel
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Cornelius Mihm
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Holger Braunschweig
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Maik Finze
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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2
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Bose SK, Mao L, Kuehn L, Radius U, Nekvinda J, Santos WL, Westcott SA, Steel PG, Marder TB. First-Row d-Block Element-Catalyzed Carbon-Boron Bond Formation and Related Processes. Chem Rev 2021; 121:13238-13341. [PMID: 34618418 DOI: 10.1021/acs.chemrev.1c00255] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organoboron reagents represent a unique class of compounds because of their utility in modern synthetic organic chemistry, often affording unprecedented reactivity. The transformation of the carbon-boron bond into a carbon-X (X = C, N, and O) bond in a stereocontrolled fashion has become invaluable in medicinal chemistry, agrochemistry, and natural products chemistry as well as materials science. Over the past decade, first-row d-block transition metals have become increasingly widely used as catalysts for the formation of a carbon-boron bond, a transformation traditionally catalyzed by expensive precious metals. This recent focus on alternative transition metals has enabled growth in fundamental methods in organoboron chemistry. This review surveys the current state-of-the-art in the use of first-row d-block element-based catalysts for the formation of carbon-boron bonds.
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Affiliation(s)
- Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India
| | - Lujia Mao
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, 571199 Haikou, Hainan, P. R. China
| | - Laura Kuehn
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Jan Nekvinda
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Stephen A Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Patrick G Steel
- Department of Chemistry, University of Durham, Science Laboratories South Road, Durham DH1 3LE, U.K
| | - Todd B Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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3
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Fritzemeier RG, Nekvinda J, Vogels CM, Rosenblum CA, Slebodnick C, Westcott SA, Santos WL. Organocatalytic
trans
Phosphinoboration of Internal Alkynes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | - Jan Nekvinda
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry Mount Allison University 63C York Street Sackville New Brunswick E4L 1G8 Canada
| | - Carol Ann Rosenblum
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Carla Slebodnick
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry Mount Allison University 63C York Street Sackville New Brunswick E4L 1G8 Canada
| | - Webster L. Santos
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
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4
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Fritzemeier RG, Nekvinda J, Vogels CM, Rosenblum CA, Slebodnick C, Westcott SA, Santos WL. Organocatalytic
trans
Phosphinoboration of Internal Alkynes. Angew Chem Int Ed Engl 2020; 59:14358-14362. [PMID: 32406101 DOI: 10.1002/anie.202006096] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Indexed: 01/10/2023]
Affiliation(s)
| | - Jan Nekvinda
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Christopher M. Vogels
- Department of Chemistry and Biochemistry Mount Allison University 63C York Street Sackville New Brunswick E4L 1G8 Canada
| | - Carol Ann Rosenblum
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Carla Slebodnick
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry Mount Allison University 63C York Street Sackville New Brunswick E4L 1G8 Canada
| | - Webster L. Santos
- Department of Chemistry Virginia Tech 900 West Campus Drive Blacksburg VA 24061 USA
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5
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Nacca FG, Monti B, Lenardão EJ, Evans P, Santi C. A Simple Zinc-Mediated Method for Selenium Addition to Michael Acceptors. Molecules 2020; 25:E2018. [PMID: 32357472 PMCID: PMC7249194 DOI: 10.3390/molecules25092018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/20/2020] [Accepted: 04/23/2020] [Indexed: 01/29/2023] Open
Abstract
In this work, we focused our attention on seleno-Michael type reactions. These were performed using zinc-selenolates generated in situ from diphenyl diselenide 1, 1,2-bis(3-phenylpropyl)diselenide 30, and protected selenocystine 31 via an efficient biphasic Zn/HCl-based reducing system. Alkenes with a variety of electron-withdrawing groups were investigated in order to gauge the scope and limitations of the process. Results demonstrated that the addition to acyclic α,β-unsaturated ketones, aldehydes, esters amides, and acids was effectively achieved and that alkyl substituents at the reactive β-centre can be accommodated. Similarly, cyclic enones undergo efficient Se-addition and the corresponding adducts were isolated in moderate to good yield. Vinyl sulfones, α,β-unsaturated nitriles, and chalcones are not compatible with these reaction conditions. A recycling experiment demonstrated that the unreacted Zn/HCl reducing system can be effectively reused for seven reaction cycles (91% conversion yield at the 7° recycling rounds).
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Affiliation(s)
- Francesca Giulia Nacca
- Group of Catalysis, Synthesis and Organic Green Chemistry, Department of Pharmaceutical Sciences University of Perugia Via del Liceo 1, 06123 Perugia, Italy; (F.G.N.); (B.M.)
- Centre for Synthesis and Chemical Biology, School of Chemistry University College Dublin, Dublin D04, N2E5, Ireland;
| | - Bonifacio Monti
- Group of Catalysis, Synthesis and Organic Green Chemistry, Department of Pharmaceutical Sciences University of Perugia Via del Liceo 1, 06123 Perugia, Italy; (F.G.N.); (B.M.)
| | - Eder João Lenardão
- LASOL–CCQFA, Universidade Federal de Pelotas—UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil;
| | - Paul Evans
- Centre for Synthesis and Chemical Biology, School of Chemistry University College Dublin, Dublin D04, N2E5, Ireland;
| | - Claudio Santi
- Group of Catalysis, Synthesis and Organic Green Chemistry, Department of Pharmaceutical Sciences University of Perugia Via del Liceo 1, 06123 Perugia, Italy; (F.G.N.); (B.M.)
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6
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Tanini D, Scarpelli S, Ermini E, Capperucci A. Seleno‐Michael Reaction of Stable Functionalised Alkyl Selenols: A Versatile Tool for the Synthesis of Acyclic and Cyclic Unsymmetrical Alkyl and Vinyl Selenides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900168] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Damiano Tanini
- Dipartimento di Chimica ”Ugo Schiff”Università di Firenze Via della Lastruccia 3–13 50019 Sesto Fiorentino Italy
| | - Simone Scarpelli
- Dipartimento di Chimica ”Ugo Schiff”Università di Firenze Via della Lastruccia 3–13 50019 Sesto Fiorentino Italy
| | - Elena Ermini
- Dipartimento di Chimica ”Ugo Schiff”Università di Firenze Via della Lastruccia 3–13 50019 Sesto Fiorentino Italy
| | - Antonella Capperucci
- Dipartimento di Chimica ”Ugo Schiff”Università di Firenze Via della Lastruccia 3–13 50019 Sesto Fiorentino Italy
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7
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Cuenca AB, Shishido R, Ito H, Fernández E. Transition-metal-free B-B and B-interelement reactions with organic molecules. Chem Soc Rev 2018; 46:415-430. [PMID: 27942683 DOI: 10.1039/c6cs00692b] [Citation(s) in RCA: 248] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This review is a guided tour along the activation modes and reactivity of B-B, B-Si, B-N, B-S, B-Se and B-P reagents, in the absence of any transition metal complex. Here are disclosed the general concepts related to the homolytic and heterolytic cleavage of B-B and B-interelement bonds, as well as the generation of new C-B and C-interelement bonds, in a selective way. The greener consequences of these novel routes facilitate the gram scale preparations of target functionalised organic compounds. Intrinsic data about the suggested mechanisms and spectroscopic evidence that supports the innovative theories are provided along the review. Since this is a stimulating area of work that has emerged within the last decade, this overview serves as the basis to understand the new trends and hopefully to generate inspiration for future discoveries in the field.
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Affiliation(s)
- Ana B Cuenca
- Dept Física Química e Inorgánica, University Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain. and Dept. Química Orgánica, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, Barcelona 08017, Spain
| | - Ryosuke Shishido
- Division of Chemical Process Engineering, Graduate School of Engineering Hokkaido University, Sapporo, 060-8628, Japan.
| | - Hajime Ito
- Division of Chemical Process Engineering, Graduate School of Engineering Hokkaido University, Sapporo, 060-8628, Japan.
| | - Elena Fernández
- Dept Física Química e Inorgánica, University Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain.
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García-López D, Civit MG, Vogels CM, Ricart JM, Westcott SA, Fernández E, Carbó JJ. Understanding the mechanism of transition metal-free anti addition to alkynes: the selenoboration case. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02295f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel mechanism was proposed for the stereoselective anti-addition of selenoboranes to alkynes using catalytic amounts of PCy3.
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Affiliation(s)
- Diego García-López
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | - Marc G. Civit
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | | | - Josep M. Ricart
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| | - Elena Fernández
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
| | - Jorge J. Carbó
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- Tarragona
- Spain
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9
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Cui FH, Chen J, Su SX, Xu YL, Wang HS, Pan YM. Regioselective Synthesis of Selenide Ethers through a Decarboxylative Coupling Reaction. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700676] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Fei-Hu Cui
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University; Guilin 541004 People's Republic of China
| | - Jing Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University; Guilin 541004 People's Republic of China
| | - Shi-Xia Su
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University; Guilin 541004 People's Republic of China
| | - Yan-li Xu
- College of Pharmacy; Guilin Medical University; Guilin 541004 People's Republic of China
| | - Heng-shan Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University; Guilin 541004 People's Republic of China
| | - Ying-ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University; Guilin 541004 People's Republic of China
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Affiliation(s)
- Étienne Rochette
- Département de Chimie, Centre de Catalyse et Chimie Verte (C3 V) Université Laval, 1045 Avenue de
la Médecine, Québec, G1V 0A6 Québec, Canada
| | - Hugo Boutin
- Département de Chimie, Centre de Catalyse et Chimie Verte (C3 V) Université Laval, 1045 Avenue de
la Médecine, Québec, G1V 0A6 Québec, Canada
| | - Frédéric-Georges Fontaine
- Département de Chimie, Centre de Catalyse et Chimie Verte (C3 V) Université Laval, 1045 Avenue de
la Médecine, Québec, G1V 0A6 Québec, Canada
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11
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Wang M, Wu Z, Zhu C. Ring-opening selenation of cyclobutanols: synthesis of γ-selenylated alkyl ketones through C–C bond cleavage. Org Chem Front 2017. [DOI: 10.1039/c6qo00744a] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An efficient, practical, and operationally simple manganese-mediated ring-opening selenation of cyclobutanols is disclosed.
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Affiliation(s)
- Mingyang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Zhen Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
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12
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Geier SJ, LaFortune JHW, Zhu D, Kosnik SC, Macdonald CLB, Stephan DW, Westcott SA. The phosphinoboration of carbodiimides, isocyanates, isothiocyanates and CO2. Dalton Trans 2017; 46:10876-10885. [DOI: 10.1039/c7dt02305g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The transition metal-free addition of phosphinoboronate ester Ph2PBpin (pin = 1,2-O2C2Me4) to heterocumulenes including carbodiimides, isocyanates, isothiocyanates and carbon dioxide proceeds with remarkable selectivity to give products in high yield.
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Affiliation(s)
- Stephen J. Geier
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| | | | - Diya Zhu
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
- Department of Chemistry
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13
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Civit MG, Sanz X, Vogels CM, Bo C, Westcott SA, Fernández E. Ynones Merge Activation/Conjugate Addition of Chalcogenoborates ArE-Bpin (E=Se, S). Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500650] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Dewhurst RD, Neeve EC, Braunschweig H, Marder TB. sp(2)-sp(3) diboranes: astounding structural variability and mild sources of nucleophilic boron for organic synthesis. Chem Commun (Camb) 2015; 51:9594-607. [PMID: 25912808 DOI: 10.1039/c5cc02316e] [Citation(s) in RCA: 202] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Despite the widespread use of organoborane reagents in organic synthesis and catalysis, a major challenge still remains: very few boron-centered nucleophiles exist for the direct construction of B-C bonds. Perhaps the most promising emerging solution to this problem is the use of sp(2)-sp(3) diboranes, in which one boron atom of a conventional diborane(4) is quaternised by either a neutral or anionic nucleophile. These compounds, either isolated or generated in situ, serve as relatively mild and convenient sources of the boryl anion [BR2](-) for use in organic synthesis and have already proven their efficacy in metal-free as well as metal-catalysed borylation reactions. This Feature article documents the history of sp(2)-sp(3) diborane synthesis, their properties and surprising structural variability, and their burgeoning utility in organic synthesis.
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Affiliation(s)
- Rian D Dewhurst
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
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15
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Pietsch S, Neeve EC, Apperley DC, Bertermann R, Mo F, Qiu D, Cheung MS, Dang L, Wang J, Radius U, Lin Z, Kleeberg C, Marder TB. Synthesis, Structure, and Reactivity of Anionic sp2-sp3Diboron Compounds: Readily Accessible Boryl Nucleophiles. Chemistry 2015; 21:7082-98. [DOI: 10.1002/chem.201500235] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Indexed: 01/20/2023]
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16
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Civit MG, Sanz X, Vogels CM, Webb JD, Geier SJ, Decken A, Bo C, Westcott SA, Fernández E. Thioboration of α,β-Unsaturated Ketones and Aldehydes toward the Synthesis of β-Sulfido Carbonyl Compounds. J Org Chem 2015; 80:2148-54. [DOI: 10.1021/jo5026354] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marc G. Civit
- Dept.
Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Xavier Sanz
- Dept.
Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
- Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Christopher M. Vogels
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Jonathan D. Webb
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Stephen J. Geier
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Andreas Decken
- Department
of Chemistry, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada
| | - Carles Bo
- Institute of Chemical Research of Catalonia (ICIQ), Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Stephen A. Westcott
- Department
of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Elena Fernández
- Dept.
Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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17
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Palau-Lluch G, Sanz X, La Cascia E, Civit MG, Miralles N, Cuenca AB, Fernández E. Organocatalytic functionalisation through boron chemistry. PURE APPL CHEM 2015. [DOI: 10.1515/pac-2014-0934] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractDiboron reagents can be activated both, from a metal or free-metal context, and consequently the addition of boryl units to unsaturated substrates proceeds sometimes with complementary selectivity. We highlight here the power of boron chemistry to functionalize molecules and provide new routes towards challenging compounds.
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Affiliation(s)
- Gerard Palau-Lluch
- 1Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcellí Domingo s/n, 43007 Tarragona, Spain
| | - Xavier Sanz
- 1Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcellí Domingo s/n, 43007 Tarragona, Spain
| | - Enrico La Cascia
- 1Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcellí Domingo s/n, 43007 Tarragona, Spain
| | - Marc G. Civit
- 1Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcellí Domingo s/n, 43007 Tarragona, Spain
| | - Nuria Miralles
- 1Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcellí Domingo s/n, 43007 Tarragona, Spain
| | - Ana B. Cuenca
- 1Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcellí Domingo s/n, 43007 Tarragona, Spain
| | - Elena Fernández
- 1Department Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcellí Domingo s/n, 43007 Tarragona, Spain
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Daley EN, Vogels CM, Geier SJ, Decken A, Doherty S, Westcott SA. The phosphinoboration reaction. Angew Chem Int Ed Engl 2014; 54:2121-5. [PMID: 25558017 DOI: 10.1002/anie.201410033] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Indexed: 11/09/2022]
Abstract
The synthesis of phosphinoboronate esters containing a single P-B bond is reported, together with preliminary reactivity studies towards a range of organic substrates. These compounds add readily to aldehydes, ketones, aldimines, and α,β-unsaturated enones to give primarily the corresponding 1,2-addition products containing a new P-C bond. The first examples of transition-metal-catalyzed phosphinoborations of C-C multiple bonds in which P-C and B-C bonds are formed in a single step are also disclosed; allenes react by a highly regioselective 1,2-addition whereas terminal alkynes undergo a formal 1,1-addition.
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Affiliation(s)
- Erika N Daley
- Department of Chemistry and Biochemistry, Mount Allison University, 63C York Street, Sackville, New Brunswick, E4L 1G8 (Canada) http://thewildtoads.com/
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Daley EN, Vogels CM, Geier SJ, Decken A, Doherty S, Westcott SA. The Phosphinoboration Reaction. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Monleón A, Blay G, Domingo LR, Muñoz MC, Pedro JR. Efficient Synthesis of 5-Chalcogenyl-1,3-oxazin-2-ones by Chalcogen-Mediated Yne-Carbamate Cyclisation: An Experimental and Theoretical Study. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403169] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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