151
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Wu X, Daniliuc CG, Hrib CG, Tamm M. Phosphoraneiminato tungsten alkylidyne complexes as highly efficient alkyne metathesis catalysts. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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152
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Synthesis of macrocyclic natural products by catalyst-controlled stereoselective ring-closing metathesis. Nature 2011; 479:88-93. [PMID: 22051677 PMCID: PMC3211109 DOI: 10.1038/nature10563] [Citation(s) in RCA: 164] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Accepted: 09/15/2011] [Indexed: 01/26/2023]
Abstract
Many natural products contain a C = C double bond through which various other derivatives can be prepared; the stereochemical identity of the alkene can be critical to the biological activities of such molecules. Catalytic ring-closing metathesis (RCM) is a widely used method for the synthesis of large unsaturated rings; however, cyclizations often proceed without control of alkene stereochemistry. This shortcoming is particularly costly when the cyclization reaction is performed after a long sequence of other chemical transformations. Here we outline a reliable, practical and general approach for the efficient and highly stereoselective synthesis of macrocyclic alkenes by catalytic RCM; transformations deliver up to 97% of the Z isomer owing to control induced by a tungsten-based alkylidene. Utility is demonstrated through the stereoselective preparation of epothilone C (refs 3-5) and nakadomarin A (ref. 6), the previously reported syntheses of which have been marred by late-stage, non-selective RCM. The tungsten alkylidene can be manipulated in air, delivering the products in useful yields with high stereoselectivity. As a result of efficient RCM and re-incorporation of side products into the catalytic cycle with minimal alkene isomerization, desired cyclizations proceed in preference to alternative pathways, even under relatively high substrate concentration.
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153
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Jakubec P, Kyle AF, Calleja J, Dixon DJ. Total synthesis of (−)-nakadomarin A: alkyne ring-closing metathesis. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.016] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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154
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Lehr K, Mariz R, Leseurre L, Gabor B, Fürstner A. Total Synthesis of Tulearin C. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201106117] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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155
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Lehr K, Mariz R, Leseurre L, Gabor B, Fürstner A. Total Synthesis of Tulearin C. Angew Chem Int Ed Engl 2011; 50:11373-7. [DOI: 10.1002/anie.201106117] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Indexed: 01/17/2023]
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156
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Kyle AF, Jakubec P, Cockfield DM, Cleator E, Skidmore J, Dixon DJ. Total synthesis of (-)-nakadomarin A. Chem Commun (Camb) 2011; 47:10037-9. [PMID: 21826301 DOI: 10.1039/c1cc13665h] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly diastereoselective bifunctional organocatalyst controlled Michael addition, a nitro-Mannich/lactamization cascade, a furan N-acyliminium cyclisation, a sequential alkyne RCM/syn-reduction and an alkene RCM has allowed a 19 step, highly stereoselective synthesis of (-)-nakadomarin A.
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Affiliation(s)
- Andrew F Kyle
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, United Kingdom
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157
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Hickmann V, Kondoh A, Gabor B, Alcarazo M, Fürstner A. Catalysis-Based and Protecting-Group-Free Total Syntheses of the Marine Oxylipins Hybridalactone and the Ecklonialactones A, B, and C. J Am Chem Soc 2011; 133:13471-80. [DOI: 10.1021/ja204027a] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Volker Hickmann
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Azusa Kondoh
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Barbara Gabor
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Manuel Alcarazo
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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158
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Ano Y, Tobisu M, Chatani N. Palladium-Catalyzed Direct Ethynylation of C(sp3)–H Bonds in Aliphatic Carboxylic Acid Derivatives. J Am Chem Soc 2011; 133:12984-6. [DOI: 10.1021/ja206002m] [Citation(s) in RCA: 346] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yusuke Ano
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mamoru Tobisu
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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159
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Second-Generation Total Synthesis of Spirastrellolide F Methyl Ester: The Alkyne Route. Angew Chem Int Ed Engl 2011; 50:8739-44. [DOI: 10.1002/anie.201103270] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Indexed: 12/17/2022]
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160
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Benson S, Collin MP, Arlt A, Gabor B, Goddard R, Fürstner A. Second-Generation Total Synthesis of Spirastrellolide F Methyl Ester: The Alkyne Route. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103270] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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161
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Jyothish K, Zhang W. Towards Highly Active and Robust Alkyne Metathesis Catalysts: Recent Developments in Catalyst Design. Angew Chem Int Ed Engl 2011; 50:8478-80. [DOI: 10.1002/anie.201102678] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Indexed: 11/09/2022]
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162
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Jyothish K, Zhang W. Hoch aktive und belastbare Katalysatoren für die Alkinmetathese. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102678] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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163
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Affiliation(s)
- Jingwei Li
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607‐7061, USA, Fax: +1‐312‐996‐0431
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607‐7061, USA, Fax: +1‐312‐996‐0431
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164
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Wiedner ES, Gallagher KJ, Johnson MJA, Kampf JW. Synthesis of molybdenum nitrido complexes for triple-bond metathesis of alkynes and nitriles. Inorg Chem 2011; 50:5936-45. [PMID: 21630685 DOI: 10.1021/ic1024247] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Complexes of the type N≡Mo(OR)(3) (R = tertiary alkyl, tertiary silyl, bulky aryl) have been synthesized in the search for molybdenum-based nitrile-alkyne cross-metathesis (NACM) catalysts. Protonolysis of known N≡Mo(NMe(2))(3) led to the formation of N≡Mo(O-2,6-(i)Pr(2)C(6)H(3))(3)(NHMe(2)) (12), N≡Mo(OSiPh(3))(3)(NHMe(2)) (5-NHMe(2)), and N≡Mo(OCPh(2)Me)(3)(NHMe(2)) (17-NHMe(2)). The X-ray structure of 12 revealed an NHMe(2) ligand bound cis to the nitrido ligand, while 5-NHMe(2) possessed an NHMe(2) bound trans to the nitride ligand. Consequently, 17-NHMe(2) readily lost its amine ligand to form N≡Mo(OCPh(2)Me)(3) (17), while 12 and 5-NHMe(2) retained their amine ligands in solution. Starting from bulkier tris-anilide complexes, N≡Mo(N[R]Ar)(3) (R = isopropyl, tert-butyl; Ar = 3,5-dimethylphenyl) allowed for the formation of base-free complexes N≡Mo(OSiPh(3))(3) (5) and N≡Mo(OSiPh(2)(t)Bu)(3) (16). Achievement of a NACM cycle requires the nitride complex to react with alkynes to form alkylidyne complexes; therefore the alkyne cross-metathesis (ACM) activity of the complexes was tested. Complex 5 was found to be an efficient catalyst for the ACM of 1-phenyl-1-butyne at room temperature. Complexes 12 and 5-NHMe(2) were also active for ACM at 75 °C, while 17-NHMe(2) and 16 did not show ACM activity. Only 5 proved to be active for the NACM of anisonitrile, which is a reactive substrate in NACM catalyzed by tungsten. NACM with 5 required a reaction temperature of 180 °C in order to initiate the requisite alkylidyne-to-nitride conversion, with slightly more than two turnovers achieved prior to catalyst deactivation. Known molybdenum nitrido complexes were screened for NACM activity under similar conditions, and only N≡Mo(OSiPh(3))(3)(py) (5-py) displayed any trace of NACM activity.
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Affiliation(s)
- Eric S Wiedner
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, USA
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165
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Juríček M, Kouwer PHJ, Rowan AE. Triazole: a unique building block for the construction of functional materials. Chem Commun (Camb) 2011; 47:8740-9. [PMID: 21556388 DOI: 10.1039/c1cc10685f] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Over the past 50 years, numerous roads towards carbon-based materials have been explored, all of them being paved using mainly one functional group as the brick: acetylene. The acetylene group, or the carbon-carbon triple bond, is one of the oldest and simplest functional groups in chemistry, and although not present in any of the naturally occurring carbon allotropes, it is an essential tool to access their synthetic carbon-rich family. In general, two strategies towards the synthesis of π-conjugated carbon-rich structures can be employed: (a) either the acetylene group serves as a building block to access acetylene-derived structures or (b) it serves as a synthetic tool to provide other, usually benzenoid, structures. The recently discovered copper-catalysed azide-alkyne cycloaddition (CuAAC) reaction, however, represents a new powerful alternative: it transforms the acetylene group into a five-membered heteroaromatic 1H-1,2,3-triazole (triazole) ring and this gives rise to new opportunities. Compared with all-carbon aromatic non-functional rings, the triazole ring possesses three nitrogen atoms and, thus, can serve as a ligand to coordinate metals, or as a hydrogen bond acceptor and donor. This Feature Article summarises examples of using the triazole ring to construct conjugation- and/or function-related heteroaromatic materials, such as tuneable multichromophoric covalent ensembles, macrocyclic receptors or responsive foldamers. These recent examples, which open a new sub-field within organic materials, started to appear only few years ago and represent "a few more bricks" on the road to carbon-rich functional materials.
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Affiliation(s)
- Michal Juríček
- Institute for Molecules and Materials, Radboud University Nijmegen, Department of Molecular Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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166
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Fürstner A. From Total Synthesis to Diverted Total Synthesis: Case Studies in the Amphidinolide Series. Isr J Chem 2011. [DOI: 10.1002/ijch.201100006] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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167
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Dreyer DR, Ruoff RS, Bielawski CW. From conception to realization: an historial account of graphene and some perspectives for its future. Angew Chem Int Ed Engl 2011; 49:9336-44. [PMID: 21110353 DOI: 10.1002/anie.201003024] [Citation(s) in RCA: 377] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
There has been an intense surge in interest in graphene during recent years. However, graphene-like materials derived from graphite oxide were reported in 1962, and related chemical modifications of graphite were described as early as 1840. In this detailed account of the fascinating development of the synthesis and characterization of graphene, we hope to demonstrate that the rich history of graphene chemistry laid the foundation for the exciting research that continues to this day. Important challenges remain, however; many with great technological relevance.
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Affiliation(s)
- Daniel R Dreyer
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, Texas 78712, USA
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168
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Jyothish K, Zhang W. Introducing a podand motif to alkyne metathesis catalyst design: a highly active multidentate molybdenum(VI) catalyst that resists alkyne polymerization. Angew Chem Int Ed Engl 2011; 50:3435-8. [PMID: 21394862 DOI: 10.1002/anie.201007559] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 01/07/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Kuthanapillil Jyothish
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA
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169
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Jyothish K, Zhang W. Introducing A Podand Motif to Alkyne Metathesis Catalyst Design: A Highly Active Multidentate Molybdenum(VI) Catalyst that Resists Alkyne Polymerization. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007559] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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170
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López JC, Plumet J. Metathesis Reactions of Carbohydrates: Recent Highlights in Alkyne Metathesis. European J Org Chem 2011. [DOI: 10.1002/ejoc.201001518] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J. Cristóbal López
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Joaquín Plumet
- Universidad Complutense, Facultad de Química, Departamento de Química Orgánica, Ciudad Universitaria s/n, 28040 Madrid, Spain, Fax: +34‐91‐394‐4103
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171
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Wu X, Tamm M. Recent advances in the development of alkyne metathesis catalysts. Beilstein J Org Chem 2011; 7:82-93. [PMID: 21286398 PMCID: PMC3029010 DOI: 10.3762/bjoc.7.12] [Citation(s) in RCA: 123] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 12/08/2010] [Indexed: 11/23/2022] Open
Abstract
The number of well-defined molybdenum and tungsten alkylidyne complexes that are able to catalyze alkyne metathesis reactions efficiently has been significantly expanded in recent years.The latest developments in this field featuring highly active imidazolin-2-iminato- and silanolate-alkylidyne complexes are outlined in this review.
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Affiliation(s)
- Xian Wu
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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172
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Abstract
Alkylation reactions utilizing nontoxic Lewis acid catalysts and "green" alkylating reagents are of high interest due to the continuous need for environmentally benign C-C and C-X bond formation. This article shows recent advances in Bi(III)-catalyzed alkylations of arenes, 2,4-pentanediones and various oxygen- and nitrogen-containing nucleophiles. Instead of toxic alkyl halides, the electrophilic components for these transformations were benzyl and propargyl alcohols as well as substrates with activated double bonds such as styrenes. The fact that Bi(III) salts are capable of activating both σ- and π-donors highlights their unique character as versatile catalysts for catalytic alkylation reactions. In addition, Bi(III) salts are less toxic and cheaper than other Lewis acids that have been described for similar transformations.
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173
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Rascón F, Wischert R, Copéret C. Molecular nature of support effects in single-site heterogeneous catalysts: silica vs. alumina. Chem Sci 2011. [DOI: 10.1039/c1sc00073j] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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174
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Dreyer DR, Ruoff RS, Bielawski CW. Ein Konzept und seine Umsetzung: Graphen gestern, heute und morgen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003024] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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175
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Lysenko S, Haberlag B, Daniliuc CG, Jones PG, Tamm M. Efficient Catalytic Alkyne Metathesis with a Tri(tert-butoxy)silanolate-Supported Tungsten Benzylidyne Complex. ChemCatChem 2010. [DOI: 10.1002/cctc.201000355] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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176
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Abstract
A concise diastereoselective total synthesis of (-)-nakadomarin A has been completed in 21 steps from D-pyroglutamic acid. Key steps include an enecarbamate Michael addition/furan-N-acyliminium ion cascade cyclization to provide the tetracyclic core and ring-closing alkyne and alkene metatheses to construct the fifteen- and eight-membered azacycles, respectively.
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Affiliation(s)
- Mark G. Nilson
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802
| | - Raymond L. Funk
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802
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177
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Carroll CN, Naleway JJ, Haley MM, Johnson DW. Arylethynyl receptors for neutral molecules and anions: emerging applications in cellular imaging. Chem Soc Rev 2010; 39:3875-88. [PMID: 20820467 PMCID: PMC3062433 DOI: 10.1039/b926231h] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This critical review will focus on the application of shape-persistent receptors for anions that derive their rigidity and optoelectronic properties from the inclusion of arylethynyl linkages. It will highlight a few of the design strategies involved in engineering selective and sensitive fluorescent probes and how arylacetylenes can offer a design pathway to some of the more desirable properties of a selective sensor. Additionally, knowledge gained in the study of these receptors in organic media often leads to improved receptor design and the production of chromogenic and fluorogenic probes capable of detecting specific substrates among the multitude of ions present in biological systems. In this ocean of potential targets exists a large number of geometrically distinct anions, which present their own problems to the design of receptors with complementary binding for each preferred coordination geometry. Our interest in targeting charged substrates, specifically how previous work on receptors for cations or neutral guests can be adapted to anions, will be addressed. Additionally, we will focus on the design and development of supramolecular arylethynyl systems, their shape-persistence and fluorogenic or chromogenic optoelectronic responses to complexation. We will also examine briefly how the "chemistry in the cuvet" translates into biological media (125 references).
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Affiliation(s)
- Calden N. Carroll
- Department of Chemistry and the Materials Science Institute, 1253 University of Oregon, Eugene, Oregon 97403-1253 USA
- The Oregon Nanoscience and Microtechnologies Institute (ONAMI), P.O. Box 2041, Corvallis, OR 97339 USA url: http://onami.us/
| | - John J. Naleway
- The Oregon Nanoscience and Microtechnologies Institute (ONAMI), P.O. Box 2041, Corvallis, OR 97339 USA url: http://onami.us/
- Marker Gene Technologies, Inc., University of Oregon Riverfront Research Park, 1850 Millrace Drive, Eugene, OR 97403 USA
| | - Michael M. Haley
- Department of Chemistry and the Materials Science Institute, 1253 University of Oregon, Eugene, Oregon 97403-1253 USA
- The Oregon Nanoscience and Microtechnologies Institute (ONAMI), P.O. Box 2041, Corvallis, OR 97339 USA url: http://onami.us/
| | - Darren W. Johnson
- Department of Chemistry and the Materials Science Institute, 1253 University of Oregon, Eugene, Oregon 97403-1253 USA
- The Oregon Nanoscience and Microtechnologies Institute (ONAMI), P.O. Box 2041, Corvallis, OR 97339 USA url: http://onami.us/
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178
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Petrov AR, Daniliuc CG, Jones PG, Tamm M. A Novel Synthetic Approach to Diaminoacetylenes: Structural Characterization and Reactivity of Aromatic and Aliphatic Ynediamines. Chemistry 2010; 16:11804-8. [DOI: 10.1002/chem.201002211] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Alex R. Petrov
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
| | - Constantin G. Daniliuc
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig (Germany), Fax: (+49) 531‐391‐5309
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179
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Micoine K, Fürstner A. Concise Total Synthesis of the Potent Translation and Cell Migration Inhibitor Lactimidomycin. J Am Chem Soc 2010; 132:14064-6. [DOI: 10.1021/ja107141p] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Kevin Micoine
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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180
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Kuppuswamy S, Peloquin AJ, Ghiviriga I, Abboud KA, Veige AS. Synthesis and Characterization of Tungsten(VI) Alkylidene Complexes Supported by an [OCO]3− Trianionic Pincer Ligand: Progress towards the [tBuOCO]W≡CC(CH3)3 Fragment. Organometallics 2010. [DOI: 10.1021/om100189b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Subramaniam Kuppuswamy
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611
| | - Andrew J. Peloquin
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611
| | - Ion Ghiviriga
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611
| | - Khalil A. Abboud
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611
| | - Adam S. Veige
- Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611
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181
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Affiliation(s)
- Andrew G. Tennyson
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, Texas 78712
| | - Brent Norris
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, Texas 78712
| | - Christopher W. Bielawski
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, Texas 78712
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182
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Lysenko S, Haberlag B, Wu X, Tamm M. Ring-Opening Metathesis Polymerization of Cyclooctyne Employing Well-Defined Tungsten Alkylidyne Complexes. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/masy.200900046] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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183
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Heppekausen J, Stade R, Goddard R, Fürstner A. Practical New Silyloxy-Based Alkyne Metathesis Catalysts with Optimized Activity and Selectivity Profiles. J Am Chem Soc 2010; 132:11045-57. [DOI: 10.1021/ja104800w] [Citation(s) in RCA: 258] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
| | - Robert Stade
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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184
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Haberlag B, Wu X, Brandhorst K, Grunenberg J, Daniliuc C, Jones P, Tamm M. Preparation of Imidazolin-2-iminato Molybdenum and Tungsten Benzylidyne Complexes: A New Pathway to Highly Active Alkyne Metathesis Catalysts. Chemistry 2010; 16:8868-77. [DOI: 10.1002/chem.201000597] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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185
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Affiliation(s)
- Shinji Toyota
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
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186
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Unarunotai S, Murata Y, Chialvo CE, Mason N, Petrov I, Nuzzo RG, Moore JS, Rogers JA. Conjugated carbon monolayer membranes: methods for synthesis and integration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:1072-1077. [PMID: 20401931 DOI: 10.1002/adma.200904095] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Monolayer membranes of conjugated carbon represent a class of nanomaterial with demonstrated uses in various areas of electronics, ranging from transparent, flexible, and stretchable thin film conductors, to semiconducting materials in moderate and high-performance field-effect transistors. Although graphene represents the most prominent example, many other more structurally and chemically diverse systems are also of interest. This article provides a review of demonstrated synthetic and integration strategies, and speculates on future directions for the field.
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Affiliation(s)
- Sakulsuk Unarunotai
- Department of Chemistry and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign Urbana, Illinois 61801, USA
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187
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Diederich F, Kivala M. All-carbon scaffolds by rational design. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:803-12. [PMID: 20217790 DOI: 10.1002/adma.200902623] [Citation(s) in RCA: 176] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The search for new molecular and regular polymeric allotropes of carbon has greatly stimulated the preparation and investigation of pi-conjugated acetylenic macrocycles, which often represent substructures of proposed 2D carbon networks. Perethynylated dehydroannulenes, expanded radialenes, and radiaannulenes with large, multi-nanometer-sized all-carbon cores are potent electron acceptors, and their optoelectronic as well as stability and solubility properties are greatly enhanced by peripheral donor substitution. Acetylenic scaffolding into three dimensions has generated an expanded cubane with a C(56) core, the first representative of a new class of "platonic" objects. Exceptional chiroptical properties displayed by enantiomerically pure alleno-acetylenic, shape-persistent macrocycles promise fascinating perspectives for the development of molecular and supramolecular chiroptical materials.
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Affiliation(s)
- François Diederich
- Laboratorium für Organische Chemie, ETH Zürich Hönggerberg, HCI, CH-8093 Zürich, Switzerland.
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188
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Basset JM, Coperet C, Soulivong D, Taoufik M, Cazat JT. Metathesis of alkanes and related reactions. Acc Chem Res 2010; 43:323-34. [PMID: 19856892 DOI: 10.1021/ar900203a] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The transformation of alkanes remains a difficult challenge because of the relative inertness of the C-H and C-C bonds. The rewards for asserting synthetic control over unfunctionalized, saturated hydrocarbons are considerable, however, because converting short alkanes into longer chain analogues is usually a value-adding process. Alkane metathesis is a novel catalytic and direct transformation of two molecules of a given alkane into its lower and higher homologues; moreover, the process proceeds at relatively low temperature (ambient conditions or higher). It was discovered through the use of a silica-supported tantalum hydride, ([triple bond]SiO)(2)TaH, a multifunctional catalyst with a single site of action. This reaction completes the story of the metathesis reactions discovered over the past 40 years: olefin metathesis, alkyne metathesis, and ene-yne cyclizations. In this Account, we examine the fundamental mechanistic aspects of alkane metathesis as well as the novel reactions that have been derived from its study. The silica-supported tantalum hydride catalyst was developed as the result of systematic and meticulous studies of the interaction between oxide supports and organometallic complexes, a field of study denoted surface organometallic chemistry (SOMC). A careful examination of this surface-supported tantalum hydride led to the later discovery of alumina-supported tungsten hydride, W(H)(3)/Al(2)O(3), which proved to be an even better catalyst for alkane metathesis. Supported tantalum and tungsten hydrides are highly unsaturated, electron-deficient species that are very reactive toward the C-H and C-C bonds of alkanes. They show a great versatility in various other reactions, such as cross-metathesis between methane and alkanes, cross-metathesis between toluene and ethane, or even methane nonoxidative coupling. Moreover, tungsten hydride exhibits a specific ability in the transformation of isobutane into 2,3-dimethylbutane as well as in the metathesis of olefins or the selective transformation of ethylene into propylene. Alkane metathesis represents a powerful tool for making progress in a variety of areas, perhaps most notably in the petroleum and petrochemical fields. Modern civilization is currently confronting a host of problems that relate to energy production and its effects on the environment, and judicious application of alkane metathesis to the processing of fuels such as crude oil and natural gas may well afford solutions to these difficulties.
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Affiliation(s)
- Jean-Marie Basset
- Université de Lyon 1, Institut de Chimie de Lyon, CNRS, UMR 5265 C2P2 (CNRS/CPE/UCBL), LCOMS-CPE Lyon, Bâtiment 308F, 43 Blvd du 11 Novembre 1918, F-69616 Villeurbanne Cedex, France
| | - Christophe Coperet
- Université de Lyon 1, Institut de Chimie de Lyon, CNRS, UMR 5265 C2P2 (CNRS/CPE/UCBL), LCOMS-CPE Lyon, Bâtiment 308F, 43 Blvd du 11 Novembre 1918, F-69616 Villeurbanne Cedex, France
| | - Daravong Soulivong
- Université de Lyon 1, Institut de Chimie de Lyon, CNRS, UMR 5265 C2P2 (CNRS/CPE/UCBL), LCOMS-CPE Lyon, Bâtiment 308F, 43 Blvd du 11 Novembre 1918, F-69616 Villeurbanne Cedex, France
| | - Mostafa Taoufik
- Université de Lyon 1, Institut de Chimie de Lyon, CNRS, UMR 5265 C2P2 (CNRS/CPE/UCBL), LCOMS-CPE Lyon, Bâtiment 308F, 43 Blvd du 11 Novembre 1918, F-69616 Villeurbanne Cedex, France
| | - Jean Thivolle Cazat
- Université de Lyon 1, Institut de Chimie de Lyon, CNRS, UMR 5265 C2P2 (CNRS/CPE/UCBL), LCOMS-CPE Lyon, Bâtiment 308F, 43 Blvd du 11 Novembre 1918, F-69616 Villeurbanne Cedex, France
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189
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Ma J, Kühn B, Hackl T, Butenschön H. Transannular Addition of Phenols to 1,1′-Dialkynylferrocenes: Unanticipated Formation of Phenoxy[4]ferrocenophanedienes. Chemistry 2010; 16:1859-70. [DOI: 10.1002/chem.200902492] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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190
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Iyoda M, Huang P, Nishiuchi T, Takase M, Nishinaga T. McMurry Coupling of Diformyldithienylacetylene: Synthesis of [24]-, [36]-, and [48]Annulenes Composed of Thiophene, Acetylene, and Ethylene Units. HETEROCYCLES 2010. [DOI: 10.3987/com-10-s(e)96] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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191
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Bindl M, Jean L, Herrmann J, Müller R, Fürstner A. Preparation, Modification, and Evaluation of Cruentaren A and Analogues. Chemistry 2009; 15:12310-9. [DOI: 10.1002/chem.200901817] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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192
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Yang LZ, Li Y, Zhuang XM, Jiang L, Chen JM, Luck R, Lu TB. Mechanistic Studies of CC Bond Cleavage of Nitriles by Dinuclear Metal Cryptates. Chemistry 2009; 15:12399-407. [DOI: 10.1002/chem.200901610] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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193
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Justicia J, Sancho-Sanz I, Álvarez-Manzaneda E, Oltra JE, Cuerva J. Efficient Propargylation of Aldehydes and Ketones Catalyzed by Titanocene(III). Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900479] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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194
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Gollner A, Altmann KH, Gertsch J, Mulzer J. The laulimalide family: total synthesis and biological evaluation of neolaulimalide, isolaulimalide, laulimalide and a nonnatural analogue. Chemistry 2009; 15:5979-97. [PMID: 19402092 DOI: 10.1002/chem.200802605] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We herein describe in full detail the first total synthesis of the antitumor agents neolaulimalide and isolaulimalide as well as a highly efficient route to laulimalide. A Kulinkovich reaction followed by a cyclopropyl-allyl rearrangement is used to install the exo-methylene group. The C(2)-C(16) aldehyde fragment is coupled with the C(17)-C(28) sulfone fragments by a highly (E)-selective Julia-Lythgoe-Kocienski olefination to deliver the key intermediates of all three syntheses. Various conditions for the Yamaguchi macrolactonization are applied to close the individual macrocycles. Finally a carefully elaborated endgame was developed to solve the problem of acyl migration in the case of neolaulimalide. All compounds were tested against several cell lines. The cytotoxicity of neolaulimalide could be confirmed for the first time since its original isolation and it could be shown that it induces tubulin polymerization as efficiently as laulimalide.
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Affiliation(s)
- Andreas Gollner
- University of Vienna, Institute of Organic Chemistry, Währingerstrasse 38, 1090 Vienna, Austria.
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195
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Bindl M, Stade R, Heilmann EK, Picot A, Goddard R, Fürstner A. Molybdenum Nitride Complexes with Ph3SiO Ligands Are Exceedingly Practical and Tolerant Precatalysts for Alkyne Metathesis and Efficient Nitrogen Transfer Agents. J Am Chem Soc 2009; 131:9468-70. [DOI: 10.1021/ja903259g] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Martin Bindl
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Robert Stade
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Eike K. Heilmann
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Alexandre Picot
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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196
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Fürstner A, Flügge S, Larionov O, Takahashi Y, Kubota T, Kobayashi J. Total synthesis and biological evaluation of amphidinolide V and analogues. Chemistry 2009; 15:4011-29. [PMID: 19241434 DOI: 10.1002/chem.200802068] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The awesome power of metathesis is illustrated by a concise synthesis of the extremely scarce marine natural product amphidinolide V, which hinges on a sequence of ring-closing alkyne metathesis followed by intermolecular enyne metathesis with ethylene (see scheme). As a complete set of conceivable stereoisomers was prepared, the constitution and absolute configuration of this macrolide could be established and first insights into structure-activity relationships governing its cytotoxicity were obtained.A sequence of ring-closing alkyne metathesis followed by an intermolecular enyne metathesis of the resulting cycloalkyne with ethene was used to forge the macrocyclic skeleton and to set the vicinal exo-methylene branches characteristic for the cytotoxic marine natural product amphidinolide V (1). Comparison of the synthetic material with an authentic sample of this extremely scarce metabolite isolated from a dinoflagellate of the Amphidinium sp. eliminated any doubts about its structure and allowed the absolute configuration of amphidinolide V to be determined as 8R,9S,10S,13R. Moreover, the flexibility inherent to the underlying synthesis blueprint also opened access to a comprehensive set of diastereomers of 1 as well as to synthetic analogues differing from the natural lead in the lipophilic chains appended to the macrocyclic core. This set of designed analogues gave first insights into structure-activity relationships, which revealed that the stereostructure of the macrolactone is a highly critical parameter, whereas the examined alterations of the side chain did not diminish the cytotoxicity of the compounds to any notable extent.
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Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr, Germany
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197
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the Year 2007. Coord Chem Rev 2009. [DOI: 10.1016/j.ccr.2008.12.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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198
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Beer S, Brandhorst K, Hrib CG, Wu X, Haberlag B, Grunenberg J, Jones PG, Tamm M. Experimental and Theoretical Investigations of Catalytic Alkyne Cross-Metathesis with Imidazolin-2-iminato Tungsten Alkylidyne Complexes. Organometallics 2009. [DOI: 10.1021/om801119t] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stephan Beer
- Institut für Anorganische and Analytische Chemie and Institut für Organische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Kai Brandhorst
- Institut für Anorganische and Analytische Chemie and Institut für Organische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Cristian G. Hrib
- Institut für Anorganische and Analytische Chemie and Institut für Organische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Xian Wu
- Institut für Anorganische and Analytische Chemie and Institut für Organische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Birte Haberlag
- Institut für Anorganische and Analytische Chemie and Institut für Organische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Jörg Grunenberg
- Institut für Anorganische and Analytische Chemie and Institut für Organische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische and Analytische Chemie and Institut für Organische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische and Analytische Chemie and Institut für Organische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
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199
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Ohe K, Miki K. Development of Catalytic Carbene Transfer Reactions Using Alkynes as a Source of Carbenes. J SYN ORG CHEM JPN 2009. [DOI: 10.5059/yukigoseikyokaishi.67.1161] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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200
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Doyle D, Murphy PV. Synthesis of novel glycophanes derived from glucuronic acid by ring closing alkene and alkyne metathesis. Carbohydr Res 2008; 343:2535-44. [DOI: 10.1016/j.carres.2008.06.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2008] [Revised: 05/30/2008] [Accepted: 06/07/2008] [Indexed: 11/17/2022]
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