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Bis-silylation of internal alkynes enabled by Ni(0) catalysis. Nat Commun 2021; 12:68. [PMID: 33397974 PMCID: PMC7782505 DOI: 10.1038/s41467-020-20392-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/30/2020] [Indexed: 12/04/2022] Open
Abstract
1,2-Bis-silyl alkenes have exciting synthetic potential for programmable sequential synthesis via manipulation of the two vicinal silyl groups. Transition metal-catalyzed bis-silylation of alkynes with disilanes is the most straightforward strategy to access such useful building blocks. However, this process has some limitations: (1) symmetric disilanes are frequently employed in most of the reactions to assemble two identical silyl groups, which makes chemoselective differentiation for stepwise downstream transformations difficult; (2) the main catalysts are low-valent platinum group transition metal complexes, which are expensive; and (3) internal alkynes remain challenging substrates with low inherent reactivity. Thus, the development of abundant metal-catalyzed bis-silylation of internal alkynes with unsymmetrical disilanes is of significance. Herein, we solve most of the aforementioned limitations in bis-silylation of unsaturated bonds by developing a strongly coordinating disilane reagent and a Ni(0) catalytic system. Importantly, we sufficiently realize the stepwise recognition of the two silyl groups, making this synthetic protocol of wide potential utility. Bis-silylated alkenes offer the advantage of two functional handles with distinguished reactivity for downstream functionalization. Here, the authors report a nickel-catalyzed bis-silylation of internal alkynes to versatile silylated alkene intermediates which can be chemoselectively manipulated.
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2
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Abstract
Boron-Wittig reaction as the condensation of lithium α-bis(boryl)carbanions with carbonyl derivatives on route to substituted borylalkenes.
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Affiliation(s)
- Ana B. Cuenca
- Dept. Organic and Pharmaceutic Chemistry
- Institut Químic de Sarrià
- Universitat Ramon Llull
- Barcelona
- Spain
| | - Elena Fernández
- Dept. Química Física e Inorgánica
- University Rovira i Virgili
- Tarragona
- Spain
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3
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Tani T, Takahashi N, Sawatsugawa Y, Osano M, Tsuchimoto T. Stepwise Suzuki−Miyaura Cross‐Coupling of Triborylalkenes Derived from Alkynyl−B(dan)s: Regioselective and Flexible Synthesis of Tetrasubstituted Alkenes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tomohiro Tani
- Department of Applied Chemistry School of Science and Technology Meiji University, 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Naomi Takahashi
- Department of Applied Chemistry School of Science and Technology Meiji University, 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Yuuki Sawatsugawa
- Department of Applied Chemistry School of Science and Technology Meiji University, 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Mana Osano
- Department of Applied Chemistry School of Science and Technology Meiji University, 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Teruhisa Tsuchimoto
- Department of Applied Chemistry School of Science and Technology Meiji University, 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
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Tandon N, Luxami V, Tandon R, Paul K. Recent Advances in the Synthesis of Tamoxifen and Analogues in Medicinal Chemistry. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000308] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Nitin Tandon
- School of Chemical Engineering and Physical Sciences Lovely Professional University Phagwara 144411 India
| | - Vijay Luxami
- School of Chemistry and Biochemistry Thapar Institute of Engineering and Technology Patiala 147 001 India
| | - Runjhun Tandon
- School of Chemical Engineering and Physical Sciences Lovely Professional University Phagwara 144411 India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry Thapar Institute of Engineering and Technology Patiala 147 001 India
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5
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Nelson DJ, Cazin CSJ, Nolan SP. Grignard Reagents and Palladium. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2016-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- David J. Nelson
- WestCHEM Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street Glasgow Lanarkshire , G1 1XL UK
| | - Catherine S. J. Cazin
- EaStCHEM School of Chemistry University of St Andrews Purdie Building North Haugh St Andrews Fife , KY16 9ST UK
| | - Steven P. Nolan
- Department of Inorganic and Physical Chemistry Ghent University Krijgslaan 281 - S3, 9000 Gent , Belgium
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6
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Wang Q, Yang X, Wu P, Yu Z. Photoredox-Catalyzed C–H Arylation of Internal Alkenes to Tetrasubstituted Alkenes: Synthesis of Tamoxifen. Org Lett 2017; 19:6248-6251. [DOI: 10.1021/acs.orglett.7b03223] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Quannan Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiaoge Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China
| | - Ping Wu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P. R. China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, P. R. China
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7
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Cho SH, Hartwig JF. Iridium-catalyzed diborylation of benzylic C–H bonds directed by a hydrosilyl group: synthesis of 1,1-benzyldiboronate esters. Chem Sci 2014. [DOI: 10.1039/c3sc52824c] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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8
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Jiao J, Hyodo K, Hu H, Nakajima K, Nishihara Y. Selective Synthesis of Multisubstituted Olefins Utilizing gem- and vic-Diborylated Vinylsilanes Prepared by Silylborylation of an Alkynylboronate and Diborylation of Alkynylsilanes. J Org Chem 2013; 79:285-95. [DOI: 10.1021/jo4024057] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiao Jiao
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Keita Hyodo
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Hao Hu
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Kiyohiko Nakajima
- Department
of Chemistry, Aichi University of Education, Igaya, Kariya 448-8542, Japan
| | - Yasushi Nishihara
- Division
of Earth, Life, and Molecular Sciences, Graduate School of Natural
Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
- ACT-C, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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9
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Haberberger M, Enthaler S. Straightforward Iron-Catalyzed Synthesis of Vinylboronates by the Hydroboration of Alkynes. Chem Asian J 2012; 8:50-4. [DOI: 10.1002/asia.201200931] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 10/19/2012] [Indexed: 11/06/2022]
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10
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Miersch A, Hilt G. Stereodivergent Zinc-Mediated Three-Component Synthesis of Tri- and Tetrasubstituted Alkenes. Chemistry 2012; 18:9798-801. [DOI: 10.1002/chem.201201385] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Indexed: 11/06/2022]
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11
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Matsumoto K, Shindo M. Palladium-Catalyzed Fluoride-Free Cross-Coupling of Intramolecularly Activated Alkenylsilanes and Alkenylgermanes: Synthesis of Tamoxifen as a Synthetic Application. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100627] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Schmidt Y, Breit B. Stereoselective and diversity-oriented synthesis of trisubstituted allylic alcohols and amines. Chemistry 2011; 17:11789-96. [PMID: 21898610 DOI: 10.1002/chem.201100844] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Indexed: 11/08/2022]
Abstract
Stereoselective and diversity-oriented synthesis of trisubstituted olefins was achieved by using ortho-diphenylphosphanyl benzoate (o-DPPB) as a directing group for allylic substitution. The starting point of this methodology was a set of α-methylene aldehydes derived from Baylis-Hillman adducts. Subsequent addition of different organometallic reagents led to a variety of allylic alcohol substrates. After introduction of the reagent-directing o-DPPB group, copper-mediated allylic substitution with a wide range of Grignard reagents enabled the stereoselective construction of a large number of E-configured trisubstituted allylic alcohols and amines in excellent yields and stereoselectivities. Remarkable is the synthetic flexibility, which allows a wide range of permutations starting from an aldehyde followed by successive introduction of the substituents R(2) and R(3) from organometallic Grignard based reagents. Thus, starting from only a few precursors, a diversity-oriented synthesis of stereodefined trisubstituted allylic alcohols and amines becomes possible.
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Affiliation(s)
- Yvonne Schmidt
- Institut für Organische Chemie und Biochemie, Freiburg Institute for Advances Studies (FRIAS), Universität Freiburg, Albertstr. 21, Germany
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Schmidt Y, Breit B. Stereoselective Synthesis of Trisubstituted Olefins by a Directed Allylic Substitution Strategy. Chemistry 2011; 17:11780-8. [DOI: 10.1002/chem.201100843] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Indexed: 11/10/2022]
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14
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Huang C, Chernyak N, Dudnik AS, Gevorgyan V. The Pyridyldiisopropylsilyl Group: A Masked Functionality and Directing Group for Monoselective ortho-Acyloxylation and ortho-Halogenation Reactions of Arenes. Adv Synth Catal 2011; 353:10.1002/adsc.201000975. [PMID: 24363640 PMCID: PMC3866842 DOI: 10.1002/adsc.201000975] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A novel, easily removable and modifiable silicon-tethered pyridyldiisopropylsilyl directing group for C-H functionalizations of arenes has been developed. The installation of the pyridyldiisopropylsilyl group can efficiently be achieved via two complementary routes using easily available 2-(diisopropylsilyl)pyridine (5). The first strategy features a nucleophilic hydride substitution at the silicon atom in 5 with aryllithium reagents generated in situ from the corresponding aryl bromides or iodides. The second milder route exploits a highly efficient room-temperature rhodium(I)-catalyzed cross-coupling reaction between 5 and aryl iodides. The latter approach can be applied to the preparation of a wide range of pyridyldiisopropylsilyl-substituted arenes possessing a variety of functional groups, including those incompatible with organometallic reagents. The pyridyldiisopropylsilyl directing group allows for a highly efficient, regioselective palladium(II)-catalyzed mono-ortho-acyloxylation and ortho-halogenation of various aromatic compounds. Most impor-tantly, the silicon-tethered directing group in both acyloxylated and halogenated products can easily be removed or efficiently converted into an array of other valuable functionalities. These transformations include protio-, deuterio-, halo-, boro-, and alkynyldesilylations, as well as a conversion of the directing group into the hydroxy functionality. In addition, the construction of aryl-aryl bonds via the Hiyama-Denmark cross-coupling reaction is feasible for the acetoxylated products. Moreover, the ortho-halogenated pyridyldiisopropylsilylarenes, bearing both nucleophilic pyridyldiisopropylsilyl and electrophilic aryl halide moieties, represent synthetically attractive 1,2-ambiphiles. A unique reactivity of these ambiphiles has been demonstrated in efficient syntheses of arylenediyne and benzosilole derivatives, as well as in a facile generation of benzyne. In addition, preliminary mechanistic studies of the acyloxylation and halogenation reactions have been performed. A trinuclear palladacycle intermediate has been isolated from a stoichiometric reaction between diisopropyl-(phenyl)pyrid-2-ylsilane (3a) and palladium acetate. Furthermore, both C-H functionalization reactions exhibited equally high values of the intramolecular primary kinetic isotope effect (kH/kD = 6.7). Based on these observations, a general mechanism involving the formation of a palladacycle via a C-H activation process as the rate-determining step has been proposed.
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Affiliation(s)
- Chunhui Huang
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA
| | - Natalia Chernyak
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA
| | - Alexander S. Dudnik
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA
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16
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Dudnik AS, Chernyak N, Huang C, Gevorgyan V. A general strategy toward aromatic 1,2-ambiphilic synthons: palladium-catalyzed ortho-halogenation of PyDipSi-arenes. Angew Chem Int Ed Engl 2010; 49:8729-32. [PMID: 20886495 PMCID: PMC3132816 DOI: 10.1002/anie.201004426] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alexander S. Dudnik
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St, Rm 4500, Chicago, IL 60607 (USA), Fax: (+1)312-355-0836
| | - Natalia Chernyak
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St, Rm 4500, Chicago, IL 60607 (USA), Fax: (+1)312-355-0836
| | - Chunhui Huang
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St, Rm 4500, Chicago, IL 60607 (USA), Fax: (+1)312-355-0836
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St, Rm 4500, Chicago, IL 60607 (USA), Fax: (+1)312-355-0836
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17
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Dudnik AS, Chernyak N, Huang C, Gevorgyan V. A General Strategy Toward Aromatic 1,2-Ambiphilic Synthons: Palladium-Catalyzed ortho-Halogenation of PyDipSi-Arenes. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004426] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Chernyak N, Dudnik AS, Huang C, Gevorgyan V. PyDipSi: a general and easily modifiable/traceless Si-tethered directing group for C-H acyloxylation of arenes. J Am Chem Soc 2010; 132:8270-2. [PMID: 20509671 DOI: 10.1021/ja1033167] [Citation(s) in RCA: 175] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new general and easily installable silicon-tethered pyridyl-containing directing group (PyDipSi) that allows for highly efficient and regioselective Pd-catalyzed ortho C-H acyloxylation of arenes has been developed. It has also been demonstrated that this directing group can efficiently be removed as well as converted into a variety of other valuable functional groups. In addition, the installation of the PyDipSi directing group along with pivaloxylation and quantitative conversion of the PyDipSi group into a halogen functionality represents a formal three-step ortho oxygenation of haloarenes.
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Affiliation(s)
- Natalia Chernyak
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA
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19
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Geary LM, Hultin PG. Palladium-Catalyzed Modular Assembly of Electron-Rich Alkenes, Dienes, Trienes, and Enynes from (E)-1,2-Dichlorovinyl Phenyl Ether. J Org Chem 2010; 75:6354-71. [DOI: 10.1021/jo1014678] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laina M. Geary
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
| | - Philip G. Hultin
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
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Tsuji H, Ueda Y, Ilies L, Nakamura E. Synthesis of Tetrasubstituted Alkenes by Stereo- and Regioselective Stannyllithiation of Diarylacetylenes. J Am Chem Soc 2010; 132:11854-5. [DOI: 10.1021/ja1059119] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hayato Tsuji
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yasuyuki Ueda
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Laurean Ilies
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Eiichi Nakamura
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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21
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Basheer A, Marek I. Recent advances in carbocupration of α-heterosubstituted alkynes. Beilstein J Org Chem 2010; 6. [PMID: 20703385 PMCID: PMC2919272 DOI: 10.3762/bjoc.6.77] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Accepted: 07/07/2010] [Indexed: 11/23/2022] Open
Abstract
Carbocupration of α-heterosubstituted alkynes leads to the formation of stereodefined functionalized vinyl copper species as single isomer. Recent advances in the field show that a simple pre-association of the organometallic derivative with an additional polar functional group in the vicinity of the reaction center may completely change the stereochemical outcome of the reaction. Representative examples are given in this mini-review.
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Affiliation(s)
- Ahmad Basheer
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
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Molander G, Canturk B. Organotrifluorborate und einfach koordinierte Palladiumkomplexe als Katalysatoren â die perfekte Kombination für die Suzuki-Miyaura-Kupplung. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200904306] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Molander GA, Canturk B. Organotrifluoroborates and monocoordinated palladium complexes as catalysts--a perfect combination for Suzuki-Miyaura coupling. Angew Chem Int Ed Engl 2009; 48:9240-61. [PMID: 19899086 PMCID: PMC2917751 DOI: 10.1002/anie.200904306] [Citation(s) in RCA: 381] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Monocoordinated palladium catalysts derived from sterically hindered, electron-rich phosphines or N-heterocyclic carbenes have revolutionized the Suzuki-Miyaura coupling reaction. The emergence of organotrifluoroborates has provided important new perspectives for the organoboron component of these reactions. In combination, these two components prove to be extraordinarily powerful partners for cross-coupling reactions.
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Affiliation(s)
- Gary A Molander
- Department of Chemistry, University of Pennsylvania, 231 S. 34th Street, Philadelphia, PA 19104-6323, USA.
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Itami K. Lecture Tour upon Receiving the Merck-Banyu Lectureship Award 2007. J SYN ORG CHEM JPN 2009. [DOI: 10.5059/yukigoseikyokaishi.67.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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25
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Affiliation(s)
- Bernhard Breit
- Institut fur Organische Chemie and Biochemie, Albert-Ludwigs-Universitat Freiburg, Albertstrasse 21, 79104 Freiburg i. Brsg, Germany.
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Nishihara Y, Miyasaka M, Okamoto M, Takahashi H, Inoue E, Tanemura K, Takagi K. Zirconocene-mediated highly regio- and stereoselective synthesis of multisubstituted olefins starting from 1-alkynylboronates. J Am Chem Soc 2007; 129:12634-5. [PMID: 17910456 DOI: 10.1021/ja075234y] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yasushi Nishihara
- Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Okayama, Japan.
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El Bakkari M, Vincent JM. Pyridyl Tags as Phase Labels in Organic Synthesis: Fluorous and Non-Fluorous Approaches. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/qsar.200640055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Itami K, Yoshida JI. Multisubstituted Olefins: Platform Synthesis and Applications to Materials Science and Pharmaceutical Chemistry. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2006. [DOI: 10.1246/bcsj.79.811] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Itami K, Yoshida JI. Platform Synthesis: A Useful Strategy for Rapid and Systematic Generation of Molecular Diversity. Chemistry 2006; 12:3966-74. [PMID: 16380951 DOI: 10.1002/chem.200500958] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Emergence of library-based approaches have changed the way of developing new functional molecules in materials science and pharmaceutical science. Therefore, reliable methods for rapid and systematic generation of functional molecules are highly called for in this field. We herein describe our concept of "platform synthesis" as a useful strategy for generating molecular diversity. This simple yet powerful strategy realizes the synthesis of a number of interesting multifunctional molecules, such as multisubstituted olefins, in a programmable and diversity-oriented format. As well as applications to the synthesis of pharmaceutically important molecules, such as tamoxifen and CDP840, applications to materials science, which have led to the discovery of interesting fluorescent materials and properties, are also described.
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Affiliation(s)
- Kenichiro Itami
- Research Center for Materials Science, Nagoya University, Nagoya 464-8602, Japan.
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31
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Dolle RE. Comprehensive survey of combinatorial library synthesis: 2004. ACTA ACUST UNITED AC 2006; 7:739-98. [PMID: 16283784 DOI: 10.1021/cc050082t] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Roland E Dolle
- Department of Chemistry, Adolor Corporation, 700 Pennsylvania Drive, Exton, PA 19341, USA.
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32
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Mitsui Chemicals Catalysis Science Awards: E. Jacobsen, S. Kobayashi, R. Kuwano, K. Itami. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200500770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mitsui Chemicals Catalysis Science Awards: E. Jacobsen, S. Kobayashi, R. Kuwano, K. Itami. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/anie.200500770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Itami K, Ohashi Y, Yoshida JI. Triarylethene-Based Extended π-Systems: Programmable Synthesis and Photophysical Properties. J Org Chem 2005; 70:2778-92. [PMID: 15787572 DOI: 10.1021/jo0477401] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] On the basis of an efficient Pd-catalyzed triarylation to a vinylsilane platform, four types of structurally well-defined triarylethene-based extended pi-systems have been prepared very rapidly. From a compound library constructed by the present method, it was possible to find a number of interesting fluorescent materials, as well as interesting fluorescent properties such as aggregation-induced enhanced emission. A useful method for the rapid synthesis and property evaluation has also been developed.
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Affiliation(s)
- Kenichiro Itami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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