1
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Buchowicz W, Guńka PA, Buchalski P, Piszcz M, Buś S, Mrozowicz M, Mazur M, Wasilewski R. E/ Z Switchable Ring-Closing Metathesis in 1,1′-Bis(but-3-enyl)ferrocenes: Synthesis and Characterization of Axially Chiral ansa[6]-Ferrocenes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Włodzimierz Buchowicz
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Piotr A. Guńka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Piotr Buchalski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Michał Piszcz
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Sylwia Buś
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Michał Mrozowicz
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Maria Mazur
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Rafał Wasilewski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
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2
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Keita H. Supramolecular Immobilization of Adamantyl and Carboxylate Modified N-Heterocyclic Carbene Ligand on Cucurbituril Substrates. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27051662. [PMID: 35268763 PMCID: PMC8911794 DOI: 10.3390/molecules27051662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 11/16/2022]
Abstract
Herein, the design, synthesis, supramolecular interactions and structural analysis of a novel bidentate carboxylate chelating N-heterocylic carbene (NHC) ligand is presented. The NHC structure was modified to strategically incorporate adamantyl moiety for the formation of a supramolecular complex with host molecules such as cucurbiturils. The adamantyl modified NHC ligand could potentially be used in recoverable homogeneous catalysts when Immobilized on a solid support via host–guest chemistry. As a versatile precursor, NHC ligand (8) was synthesized and characterized by 1H-NMR, 13C-NMR, FTIR, single crystal x-ray crystallography and elemental analysis. A proof-of-principle non-covalent immobilization of the NHC ligand (8) with a Cucurbit[7]uril (CB7) host was demonstrated using 1H-NMR titration.
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Affiliation(s)
- Hamidou Keita
- Department of Chemistry, Clemson University, Clemson, SC 29634, USA
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3
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Specialized Olefin Metathesis Catalysts Featuring Unsymmetrical N-Heterocyclic Carbene Ligands Bearing N-(Fluoren-9-yl) Arm. Catalysts 2020. [DOI: 10.3390/catal10060599] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Beneficial structural motifs from two known state-of-the-art olefin metathesis catalysts types, bearing unsymmetrical N-heterocyclic carbenes (uNHCs), were combined into a new hybridized design thereby translating the complementary beneficial reactivity demonstrated by their ‘parent’ complexes to the new N-fluorene derived olefin metathesis catalysts. Two chelating 2-iso-propoxy-benzylidene (Hoveyda-type) and two 3-phenyl-1H-inden-1-ylidene (indenylidene-type) complexes were successfully prepared by in situ generation of either the N′-mesityl (Mes) or N′-diisopropylphenyl (Dipp) derived uNHCs taking advantage of the thermal decomposition of the corresponding 2-(penta-fluorophenyl)-imidazolidines (NHC adducts). The new fluorene-derived catalysts mediate challenging olefin metathesis processes, such as α-olefin self-metathesis, with high selectivity and conversion.
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4
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Elser I, Groos J, Hauser PM, Koy M, van der Ende M, Wang D, Frey W, Wurst K, Meisner J, Ziegler F, Kästner J, Buchmeiser MR. Molybdenum and Tungsten Alkylidyne Complexes Containing Mono-, Bi-, and Tridentate N-Heterocyclic Carbenes. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00481] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Klaus Wurst
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, A-6020 Innsbruck, Austria
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5
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Almallah H, Nos M, Ayzac V, Brenner E, Matt D, Gourlaouen C, Jahjah M, Hijazi A. Complexes featuring N-heterocyclic carbenes with bowl-shaped wingtips. CR CHIM 2019. [DOI: 10.1016/j.crci.2019.01.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Dumas A, Tarrieu R, Vives T, Roisnel T, Dorcet V, Baslé O, Mauduit M. A Versatile and Highly Z-Selective Olefin Metathesis Ruthenium Catalyst Based on a Readily Accessible N-Heterocyclic Carbene. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00151] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Adrien Dumas
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
- DEMETA SAS, 6 rue Pierre-Joseph Colin, 35000 Rennes, France
| | - Robert Tarrieu
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Thomas Vives
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | | | - Vincent Dorcet
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Olivier Baslé
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Marc Mauduit
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
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7
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Liu HJ, Ziegler MS, Tilley TD. Synthesis, structures, and reactivity studies of cyclometalated N-heterocyclic carbene complexes of ruthenium. Dalton Trans 2018; 47:12138-12146. [DOI: 10.1039/c8dt01925h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dehydrochlorination of Cp*Ru(IPr)Cl leads to an unusual C–C bond activation, yielding a cyclometalated Ru complex bearing an NHC-C(sp2) ligand. Reactivity studies of cyclometalated Ru complexes were explored.
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Affiliation(s)
- Hsueh-Ju Liu
- Department of Chemistry
- University of California
- Berkeley
- USA
| | | | - T. Don Tilley
- Department of Chemistry
- University of California
- Berkeley
- USA
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8
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Bailey GA, Lummiss JAM, Foscato M, Occhipinti G, McDonald R, Jensen VR, Fogg DE. Decomposition of Olefin Metathesis Catalysts by Brønsted Base: Metallacyclobutane Deprotonation as a Primary Deactivating Event. J Am Chem Soc 2017; 139:16446-16449. [DOI: 10.1021/jacs.7b08578] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gwendolyn A. Bailey
- Center
for Catalysis Research and Innovation, and Department of Chemistry
and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Justin A. M. Lummiss
- Center
for Catalysis Research and Innovation, and Department of Chemistry
and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Marco Foscato
- Department
of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - Giovanni Occhipinti
- Department
of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - Robert McDonald
- X-Ray
Crystallography Laboratory, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Vidar R. Jensen
- Department
of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - Deryn E. Fogg
- Center
for Catalysis Research and Innovation, and Department of Chemistry
and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
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9
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10
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Mikus MS, Torker S, Xu C, Li B, Hoveyda AH. Pentacoordinate Ruthenium(II) Catecholthiolate and Mercaptophenolate Catalysts for Olefin Metathesis: Anionic Ligand Exchange and Ease of Initiation. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00773] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Malte S. Mikus
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Sebastian Torker
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Chaofan Xu
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Bo Li
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Amir H. Hoveyda
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
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11
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McClennan WL, Rufh SA, Lummiss JAM, Fogg DE. A General Decomposition Pathway for Phosphine-Stabilized Metathesis Catalysts: Lewis Donors Accelerate Methylidene Abstraction. J Am Chem Soc 2016; 138:14668-14677. [DOI: 10.1021/jacs.6b08372] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- William L. McClennan
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Stephanie A. Rufh
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Justin A. M. Lummiss
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Deryn E. Fogg
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
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12
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Endo K, Grubbs RH. Cationic ruthenium alkylidene catalysts bearing phosphine ligands. Dalton Trans 2016; 45:3627-34. [PMID: 26817990 PMCID: PMC4755883 DOI: 10.1039/c5dt04506a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The discovery of highly active catalysts and the success of ionic liquid immobilized systems have accelerated attention to a new class of cationic metathesis catalysts.
The discovery of highly active catalysts and the success of ionic liquid immobilized systems have accelerated attention to a new class of cationic metathesis catalysts. We herein report the facile syntheses of cationic ruthenium catalysts bearing bulky phosphine ligands. Simple ligand exchange using silver(i) salts of non-coordinating or weakly coordinating anions provided either PPh3 or chelating Ph2P(CH2)nPPh2 (n = 2 or 3) ligated cationic catalysts. The structures of these newly reported catalysts feature unique geometries caused by ligation of the bulky phosphine ligands. Their activities and selectivities in standard metathesis reactions were also investigated. These cationic ruthenium alkylidene catalysts reported here showed moderate activity and very similar stereoselectivity when compared to the second generation ruthenium dichloride catalyst in ring-closing metathesis, cross metathesis, and ring-opening metathesis polymerization assays.
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Affiliation(s)
- Koji Endo
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
| | - Robert H Grubbs
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
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13
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Herbert MB, Suslick BA, Liu P, Zou L, Dornan PK, Houk KN, Grubbs RH. Cyclometalated Z-Selective Ruthenium Metathesis Catalysts with Modified N-Chelating Groups. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00185] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Myles B. Herbert
- Arnold
and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry
and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Benjamin A. Suslick
- Arnold
and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry
and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Peng Liu
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Lufeng Zou
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Peter K. Dornan
- Arnold
and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry
and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - K. N. Houk
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Robert H. Grubbs
- Arnold
and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry
and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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14
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Hassam M, Taher A, Arnott GE, Green IR, van Otterlo WAL. Isomerization of Allylbenzenes. Chem Rev 2015; 115:5462-569. [DOI: 10.1021/acs.chemrev.5b00052] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mohammad Hassam
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Abu Taher
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Gareth E. Arnott
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Ivan R. Green
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Willem A. L. van Otterlo
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
- School
of Chemistry, University of the Witwatersrand, Braamfontein, Johannesburg 2000, South Africa
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15
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2013. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.09.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Bashir O, Piche L, Claverie JP. 18-Electron Ruthenium Phosphine Sulfonate Catalysts for Olefin Metathesis. Organometallics 2014. [DOI: 10.1021/om500212x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Oumar Bashir
- Québec Center for
Functional Materials, NanoQAM, Department of Chemistry, University of Quebec in Montreal, Succ Centre Ville CP8888, Montreal, Quebec H3C3P8, Canada
| | - Laurence Piche
- Québec Center for
Functional Materials, NanoQAM, Department of Chemistry, University of Quebec in Montreal, Succ Centre Ville CP8888, Montreal, Quebec H3C3P8, Canada
| | - Jerome P. Claverie
- Québec Center for
Functional Materials, NanoQAM, Department of Chemistry, University of Quebec in Montreal, Succ Centre Ville CP8888, Montreal, Quebec H3C3P8, Canada
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17
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Cannon J, Zou L, Liu P, Lan Y, O’Leary DJ, Houk KN, Grubbs RH. Carboxylate-assisted C(sp³)-H activation in olefin metathesis-relevant ruthenium complexes. J Am Chem Soc 2014; 136:6733-43. [PMID: 24731019 PMCID: PMC4017616 DOI: 10.1021/ja5021958] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Indexed: 12/15/2022]
Abstract
The mechanism of C-H activation at metathesis-relevant ruthenium(II) benzylidene complexes was studied both experimentally and computationally. Synthesis of a ruthenium dicarboxylate at a low temperature allowed for direct observation of the C-H activation step, independent of the initial anionic ligand-exchange reactions. A first-order reaction supports an intramolecular concerted metalation-deprotonation mechanism with ΔG(‡)(298K) = 22.2 ± 0.1 kcal·mol(-1) for the parent N-adamantyl-N'-mesityl complex. An experimentally determined ΔS(‡) = -5.2 ± 2.6 eu supports a highly ordered transition state for carboxylate-assisted C(sp(3))-H activation. Experimental results, including measurement of a large primary kinetic isotope effect (k(H)/k(D) = 8.1 ± 1.7), agree closely with a computed six-membered carboxylate-assisted C-H activation mechanism where the deprotonating carboxylate adopts a pseudo-apical geometry, displacing the aryl ether chelate. The rate of cyclometalation was found to be influenced by both the electronics of the assisting carboxylate and the ruthenium ligand environment.
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Affiliation(s)
- Jeffrey
S. Cannon
- Arnold
and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - Lufeng Zou
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095-1569, United States
| | - Peng Liu
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095-1569, United States
| | - Yu Lan
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095-1569, United States
| | - Daniel J. O’Leary
- Department
of Chemistry, Pomona College, Claremont, California 91711, United States
| | - K. N. Houk
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095-1569, United States
| | - Robert H. Grubbs
- Arnold
and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
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18
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Chung WJ, Carlson JS, Vanderwal CD. General approach to the synthesis of the chlorosulfolipids danicalipin A, mytilipin A, and malhamensilipin A in enantioenriched form. J Org Chem 2014; 79:2226-41. [PMID: 24494597 PMCID: PMC3954434 DOI: 10.1021/jo5000829] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Indexed: 12/03/2022]
Abstract
A second-generation synthesis of three structurally related chlorosulfolipids has been developed. Key advances include highly stereocontrolled additions to α,β-dichloroaldehydes, kinetic resolutions of complex chlorinated vinyl epoxide intermediates, and Z-selective alkene cross metatheses of cis-vinyl epoxides. This strategy facilitated the synthesis of enantioenriched danicalipin A, mytilipin A, and malhamensilipin A in nine, eight, and 11 steps, respectively.
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Affiliation(s)
- Won-jin Chung
- Department of Chemistry, 1102 Natural Sciences
II, University of California, Irvine, California 92697-2025, United States
| | - Joseph S. Carlson
- Department of Chemistry, 1102 Natural Sciences
II, University of California, Irvine, California 92697-2025, United States
| | - Christopher D. Vanderwal
- Department of Chemistry, 1102 Natural Sciences
II, University of California, Irvine, California 92697-2025, United States
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Cyclometalated Ruthenium Alkylidene Complexes: A Powerful Family of Z-Selective Olefin Metathesis Catalysts. TOP ORGANOMETAL CHEM 2014. [DOI: 10.1007/3418_2014_76] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Higman CS, Plais L, Fogg DE. Isomerization During Olefin Metathesis: An Assessment of Potential Catalyst Culprits. ChemCatChem 2013. [DOI: 10.1002/cctc.201300886] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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