1
|
Turnbull D, Légaré MA. Rapid, iterative syntheses of unsymmetrical di- and triarylboranes from crystalline aryldifluoroboranes. Chem Sci 2023; 14:14256-14261. [PMID: 38098724 PMCID: PMC10717494 DOI: 10.1039/d3sc05071h] [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: 09/27/2023] [Accepted: 11/16/2023] [Indexed: 12/17/2023] Open
Abstract
A one-pot procedure to synthesise aryldifluoroboranes, ArBF2, from bench-stable arylsilanes is presented. These ArBF2 react conveniently with aryllithium reagents to form unsymmetrical ArAr'BF and BArAr'Ar'' in high yield. Examples of all three classes of borane have been characterised crystallographically, allowing for elucidation of geometric and crystal packing trends in crystalline ArBF2.
Collapse
Affiliation(s)
- Douglas Turnbull
- Department of Chemistry, McGill University Otto Maass Chemistry Building, 801 Rue Sherbrooke O Montreal Quebec Canada H3A 0B8
| | - Marc-André Légaré
- Department of Chemistry, McGill University Otto Maass Chemistry Building, 801 Rue Sherbrooke O Montreal Quebec Canada H3A 0B8
| |
Collapse
|
2
|
Alahmadi AF, Yin X, Lalancette RA, Jäkle F. Synthesis and Structure-Property Relationships in Regioisomeric Alternating Borane-Terthiophene Polymers. Chemistry 2022; 29:e202203619. [PMID: 36562302 DOI: 10.1002/chem.202203619] [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: 11/21/2022] [Revised: 12/17/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Main-chain boron-containing π-conjugated polymers are attractive for organic electronic, sensing, and imaging applications. Alternating terthiophene-borane polymers were prepared and the effects of regioisomeric attachment of the conjugated linker and variations in the electronic effect of the pendent aryl groups (2,4,6-tri-tert-butylphenyl, Mes*; 2,4,6-tris(trifluoromethyl)phenyl, FMes) examined. Pd2 dba3 /P(t-Bu)3 -catalyzed Stille polymerization of arylbis(2-thienyl)borane and arylbis(3-thienylborane) with 2,5-bis(trimethylstannyl)thiophene at 120 °C gave polymers with appreciable molecular weight but MALDI-TOF MS analyses showed evidence of unusually prominent homocoupling. These defects could be suppressed by using brominated rather than iodinated monomers, more hindered 2,5-bis(tri-n-butylstannyl)thiophene as comonomer, and Pd2 dba3 /P(o-tol)3 as the catalyst at 100 °C. Under these conditions, macrocyclic species with n=3-10 repeating units formed preferentially according to MALDI-TOF MS analyses. Photophysical studies revealed a prominent effect of the regiochemistry and the nature of the pendent aryl groups on the absorption and emission, giving rise to orange, yellow-green, blue-green, and blue emissive materials respectively. The electronic effects were rationalized through DFT calculations on bis(terthiophene) model systems.
Collapse
Affiliation(s)
- Abdullah F Alahmadi
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, 07102, Newark, NJ, USA
| | - Xiaodong Yin
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, 07102, Newark, NJ, USA.,Current address: Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/, Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 102488, Beijing, P. R. China
| | - Roger A Lalancette
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, 07102, Newark, NJ, USA
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, 07102, Newark, NJ, USA
| |
Collapse
|
3
|
P CAS, Raveendran AV, Sivakrishna N, Nandi RP. Triarylborane-triphenylamine based luminophore for the mitochondria targeted live cell imaging and colorimetric detection of aqueous fluoride. Dalton Trans 2022; 51:15339-15353. [PMID: 36135598 DOI: 10.1039/d2dt01887j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bioimaging of subcellular organelles such as mitochondria is crucial for detecting physiological abnormalities induced by fluctuations in the levels of various analytes. Herein, we report the design and synthesis of two novel water-soluble cationic Lewis acid triarylborane-triarylamine conjugates 1 and 2. The optical characteristics of 1 and 2 and their precursor compounds BTPA-NMe2 and BTPA-2NMe2 were evaluated, which show similar absorption and fluorescence spectra, with 1 and 2 exhibiting higher quantum yields of 0.73 and 0.64, respectively, than those of the precursors BTPA-NMe2 and BTPA-2NMe2, indicating the partial disruption of the ICT process and the activation of alternative emission bands in 1 and 2. The live cell imaging ability of compound 2 was examined in HeLa cells using a confocal microscope. Moreover, mitochondrial internalisation using compound 2 was effective and it was found to have high photostability under UV light conditions. Furthermore, compound 2 demonstrated an evident colorimetric response with a colour change to dark yellow in aqueous environments, indicating that it could be used for anion sensing. The spectral changes were observed in UV-visible and fluorescence titration experiments, which were strongly supported by DFT calculations. In short, compound 2 synthesized by us can be exclusively utilized for the selective localization of mitochondria with less cytotoxicity and shows excellent colorimetric response to aqueous inorganic fluoride at levels as low as 0.1 ppm with high selectivity.
Collapse
Affiliation(s)
- Chinna Ayya Swamy P
- Main group Organometallics Materials, Supramolecular Chemistry and Catalysis lab, Department of Chemistry, National Institute of Technology, Calicut, India-673601.
| | - Archana V Raveendran
- Main group Organometallics Materials, Supramolecular Chemistry and Catalysis lab, Department of Chemistry, National Institute of Technology, Calicut, India-673601.
| | - Narra Sivakrishna
- Humanities & Sciences, Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India-500090
| | - Rajendra Prasad Nandi
- Inorganic and Physical Chemistry Department, Indian Institute of Science, Bangalore-560 012, India
| |
Collapse
|
4
|
Berger SM, Ferger M, Marder TB. Synthetic Approaches to Triarylboranes from 1885 to 2020. Chemistry 2021; 27:7043-7058. [PMID: 33443314 PMCID: PMC8247992 DOI: 10.1002/chem.202005302] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Indexed: 12/21/2022]
Abstract
In recent years, research in the fields of optoelectronics, anion sensors and bioimaging agents have been greatly influenced by novel compounds containing triarylborane motifs. Such compounds possess an empty p-orbital at boron which results in useful optical and electronic properties. Such a diversity of applications was not expected when the first triarylborane was reported in 1885. Synthetic approaches to triarylboranes underwent various changes over the following century, some of which are still used in the present day, such as the generally applicable routes developed by Krause et al. in 1922, or by Grisdale et al. in 1972 at Eastman Kodak. Some other developments were not pursued further after their initial reports, such as the synthesis of two triarylboranes bearing three different aromatic groups by Mikhailov et al. in 1958. This review summarizes the development of synthetic approaches to triarylboranes from their first report nearly 135 years ago to the present.
Collapse
Affiliation(s)
- Sarina M. Berger
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Matthias Ferger
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Todd B. Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| |
Collapse
|
5
|
Koch R, Sun Y, Orthaber A, Pierik AJ, Pammer F. Turn-on fluorescence sensors based on dynamic intramolecular N→B-coordination. Org Chem Front 2020. [DOI: 10.1039/d0qo00267d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A series of ten aryl-triazole-functionalized boranes bearing BMes2-groups and capable of forming intramolecular five-membered N→B-coordinated heterocycles, has been prepared by 1,3-dipolar cycloaddition.
Collapse
Affiliation(s)
- Raphael Koch
- Institute of Organic Chemistry II and Advanced Materials
- University of Ulm
- 89081 Ulm
- Germany
| | - Yu Sun
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- D-67663 Kaiserslautern
- Germany
| | - Andreas Orthaber
- Department of Chemistry – Ångström laboratories
- Uppsala University
- 75120 Uppsala
- Sweden
| | - Antonio J. Pierik
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- D-67663 Kaiserslautern
- Germany
| | - Frank Pammer
- Institute of Organic Chemistry II and Advanced Materials
- University of Ulm
- 89081 Ulm
- Germany
| |
Collapse
|
6
|
Grandl M, Schepper J, Maity S, Peukert A, von Hauff E, Pammer F. N → B Ladder Polymers Prepared by Postfunctionalization: Tuning of Electron Affinity and Evaluation as Acceptors in All-Polymer Solar Cells. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02595] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Markus Grandl
- Wacker Chemie
AG, Johannes-Hess-Strasse 24, 84489 Burghausen, Germany
| | - Jonas Schepper
- Institute of Organic Chemistry II and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - Sudeshna Maity
- Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1081, NL-1081 HV Amsterdam, Netherlands
| | - Andreas Peukert
- Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1081, NL-1081 HV Amsterdam, Netherlands
| | - Elizabeth von Hauff
- Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1081, NL-1081 HV Amsterdam, Netherlands
| | - Frank Pammer
- Institute of Organic Chemistry II and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| |
Collapse
|
7
|
Sethi S, Das PK, Behera N. The chemistry of aminoferrocene, Fe{(η5-C5H4NH2)(η5-Cp)}: Synthesis, reactivity and applications. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.10.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
8
|
Yin X, Guo F, Lalancette RA, Jäkle F. Luminescent Main-Chain Organoborane Polymers: Highly Robust, Electron-Deficient Poly(oligothiophene borane)s via Stille Coupling Polymerization. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02446] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xiaodong Yin
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
| | - Fang Guo
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
| | - Roger A. Lalancette
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
| |
Collapse
|
9
|
Ren Y, Jäkle F. Merging thiophene with boron: new building blocks for conjugated materials. Dalton Trans 2016; 45:13996-4007. [DOI: 10.1039/c6dt02756c] [Citation(s) in RCA: 174] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advances on the use of thienylborane chemistry for the development of new functional materials are highlighted.
Collapse
Affiliation(s)
- Yi Ren
- Department of Chemistry
- Rutgers University–Newark
- Newark
- USA
| | - Frieder Jäkle
- Department of Chemistry
- Rutgers University–Newark
- Newark
- USA
| |
Collapse
|
10
|
Abstract
Charges make the difference in the arrangement of smart polymer chains and networks.
Collapse
|
11
|
Grandl M, Pammer F. Preparation of Head-to-Tail Regioregular 6-(1-Alkenyl)-Functionalized Poly(pyridine-2,5-diyl) and its Post-Functionalization via Hydroboration. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500337] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Markus Grandl
- Institute of Organic Chemistry II and Advanced Materials; University of Ulm; 89081 Ulm Germany
| | - Frank Pammer
- Institute of Organic Chemistry II and Advanced Materials; University of Ulm; 89081 Ulm Germany
| |
Collapse
|
12
|
Yan Y, Deaton TM, Zhang J, He H, Hayat J, Pageni P, Matyjaszewski K, Tang C. Syntheses of Monosubstituted Rhodocenium Derivatives, Monomers, and Polymers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00471] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yi Yan
- Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - T. Maxwell Deaton
- Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Jiuyang Zhang
- Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Hongkun He
- Department
of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Jeffery Hayat
- Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Parasmani Pageni
- Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Chuanbing Tang
- Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| |
Collapse
|
13
|
|
14
|
Guo F, Yin X, Pammer F, Cheng F, Fernandez D, Lalancette RA, Jäkle F. Regioregular Organoborane-Functionalized Poly(3-alkynylthiophene)s. Macromolecules 2014. [DOI: 10.1021/ma501969q] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- F. Guo
- Department
of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - X. Yin
- Department
of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - F. Pammer
- Department
of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
- Institut
für Organische Chemie II und Neue Materialien, Universität Ulm, Albert Einstein Allee 11, 89081 Ulm, Germany
| | - F. Cheng
- Department
of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - D. Fernandez
- Department
of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - R. A. Lalancette
- Department
of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | | |
Collapse
|
15
|
Hinkens DM, Chen Q, Siddiki MK, Gosztola D, Tapsak MA, Qiao Q, Jeffries-EL M, Darling SB. Model compounds based on poly(p-phenylenevinyleneborane) and terthiophene: Investigating the p–n junction in diblock copolymers. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.05.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
16
|
Tanaka K, Tamashima K, Nagai A, Okawa T, Chujo Y. Facile Modulation of Optical Properties of Diketonate-Containing Polymers by Regulating Complexation Ratios with Boron. Macromolecules 2013. [DOI: 10.1021/ma400368e] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Kazuo Tanaka
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kenji Tamashima
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Atsushi Nagai
- Department of Materials Molecular Science, Institutes for Molecular Science, Higashiyama, Okazaki,
Aichi 444-8787, Japan
| | - Toshifumi Okawa
- Fine
Materials Business Division, Fine Chemicals Production Center, Osaka Gas Chemicals Co., Ltd., Domecity Gas Bldg. 2-37,
Chiyozaki 3-chome-minami, Nishi-ku, Osaka 550-0023, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry,
Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| |
Collapse
|
17
|
Hoffend C, Diefenbach M, Januszewski E, Bolte M, Lerner HW, Holthausen MC, Wagner M. Effects of boron doping on the structural and optoelectronic properties of 9,10-diarylanthracenes. Dalton Trans 2013; 42:13826-37. [DOI: 10.1039/c3dt51035b] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
18
|
Affiliation(s)
- Michael Stollenz
- Department of Chemistry, Texas A&M University, 580 Ross Street, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Franc Meyer
- Institut
für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, D-37077 Göttingen,
Germany
| |
Collapse
|
19
|
Pammer F, Guo F, Lalancette RA, Jäkle F. Synthesis, Structures, and Hydroboration of Oligo- and Poly(3-alkynylthiophene)s. Macromolecules 2012. [DOI: 10.1021/ma3010718] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Frank Pammer
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street,
Newark, New Jersey 07102, United States
- Institute for Organic Chemistry
II and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Fang Guo
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street,
Newark, New Jersey 07102, United States
| | - Roger A. Lalancette
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street,
Newark, New Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street,
Newark, New Jersey 07102, United States
| |
Collapse
|
20
|
Zhang Z, Zhang S, Min J, Cui C, Geng H, Shuai Z, Li Y. Side Chain Engineering of Polythiophene Derivatives with a Thienylene–Vinylene Conjugated Side Chain for Application in Polymer Solar Cells. Macromolecules 2012. [DOI: 10.1021/ma2026463] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi−Guo Zhang
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Siyuan Zhang
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jie Min
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Chaohua Cui
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hua Geng
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhigang Shuai
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yongfang Li
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|
21
|
Januszewski E, Lorbach A, Grewal R, Bolte M, Bats JW, Lerner HW, Wagner M. Unsymmetrically substituted 9,10-dihydro-9,10-diboraanthracenes as versatile building blocks for boron-doped π-conjugated systems. Chemistry 2012; 17:12696-705. [PMID: 22028273 DOI: 10.1002/chem.201101701] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The targeted hydrolysis of the 9,10-dihydro-9,10-diboraanthracene adduct (Me(2)S)HB(C(6)H(4))(2)BH(SMe(2)) (1) with 0.5 equiv of H(2)O leads to formation of the borinic acid anhydride [(Me(2)S)HB(C(6)H(4))(2)B](2)O (2) and thereby provides access to the field of unsymmetrically substituted 9,10-dihydro-9,10-diboraanthracenes. Compound 2 reacts with tBuC≡CH to give the corresponding vinyl derivative in an essentially quantitative conversion. Subsequent cleavage of the B-O-B bridge by LiAlH(4) with formation of hydridoborate functionalities is possible but is accompanied by partial B-C(vinyl) bond degradation. This situation changes when the related mesityl derivative [MesB(C(6)H(4))(2)B](2)O (7) is employed, which can be synthesized from BrB(C(6)H(4))(2)BBr (6) by treatment with 1 equiv of MesMgBr and subsequent hydrolysis. The reaction of 7 with LiAlH(4) in tetrahydrofuran (THF) furnishes Li[MesB(C(6)H(4))(2)BH(2)] (8); hydride elimination with Me(3)SiCl leads to formation of the THF adduct MesB(C(6)H(4))(2)BH(THF) (9·THF). Alternatively, 7 can be transformed into the bromoborane MesB(C(6)H(4))(2)BBr (10) by treatment with BBr(3). A Br/H-exchange reaction between 10 and Et(3)SiH yields the donor-free borane MesB(C(6)H(4))(2)BH (9), which forms B-H-B bridged dimers (9)(2) in the solid state. The vinyl borane MesB(C(6)H(4))(2)BC(H)=C(H)Mes (14) is accessible from MesC≡CH and either 9·THF or 9. Compared with the related compound Mes(2)BC(H)=C(H)Mes, the electronic absorption and emission spectra of 14 reveal bathochromic shifts of Δλ(abs)=17 nm and Δλ(em)=74 nm, which can be attributed to the rigid, fully delocalized π framework of the [MesB(C(6)H(4))(2)B] chromophore.
Collapse
Affiliation(s)
- Estera Januszewski
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | | | | | | | | | | | | |
Collapse
|
22
|
|
23
|
Lorbach A, Hübner A, Wagner M. Aryl(hydro)boranes: versatile building blocks for boron-doped π-electron materials. Dalton Trans 2012; 41:6048-63. [DOI: 10.1039/c2dt30118k] [Citation(s) in RCA: 190] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
24
|
Pammer F, Jäkle F. 3-Vinylborane-functionalized oligothiophenes: isomer-dependent electronic structure and fluorescence enhancement upon anion binding. Chem Sci 2012. [DOI: 10.1039/c2sc20177a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
25
|
Zhang ZG, Zhang S, Min J, Chui C, Zhang J, Zhang M, Li Y. Conjugated Side-Chain Isolated Polythiophene: Synthesis and Photovoltaic Application. Macromolecules 2011. [DOI: 10.1021/ma201718x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhi-Guo Zhang
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Siyuan Zhang
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jie Min
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Chaohua Chui
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jing Zhang
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Maojie Zhang
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yongfang Li
- Beijing National Laboratory for Molecular
Sciences,
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|
26
|
Pammer F, Lalancette RA, Jäkle F. Metallopolymers Featuring Boratabenzene Iron Complexes. Chemistry 2011; 17:11280-9. [DOI: 10.1002/chem.201101109] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Indexed: 11/08/2022]
|
27
|
Chen P, Lalancette RA, Jäkle F. Applying the Oligomer Approach to Luminescent Conjugated Organoboranes. J Am Chem Soc 2011; 133:8802-5. [DOI: 10.1021/ja201436a] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pangkuan Chen
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Roger A. Lalancette
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University—Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| |
Collapse
|
28
|
Li H, Lalancette RA, Jäkle F. Turn-on fluorescence response upon anion binding to dimesitylboryl-functionalized quaterthiophene. Chem Commun (Camb) 2011; 47:9378-80. [DOI: 10.1039/c1cc13287c] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|