1
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Corti V, Barløse CL, Østergaard NL, Kristensen A, Jessen NI, Jørgensen KA. Organocatalytic Enantioselective Thermal [4 + 4] Cycloadditions. J Am Chem Soc 2023; 145:1448-1459. [PMID: 36603159 DOI: 10.1021/jacs.2c12750] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Chiral eight-membered carbocycles are important motifs in organic chemistry, natural product chemistry, chemical biology, and medicinal chemistry. The lack of synthetic methods toward their construction is a challenge preventing their rational design and stereoselective synthesis. The catalytic enantioselective [4 + 4] cycloaddition is one of the most straightforward and atom-economical methods to obtain chiral cyclooctadiene derivatives. We report the first organocatalytic asymmetric [4 + 4] cycloaddition of 9H-fluorene-1-carbaldehydes with electron-deficient dienes affording cyclooctadiene derivatives in good yields and with excellent control of peri-, diastereo-, and enantioselectivities. The reaction concept is based on the aminocatalytic formation of a polarized butadiene component incorporated into a cyclic extended π-system, with restricted conformational freedom, allowing for a stereocontrolled [4 + 4] cycloaddition. FMO analysis unveiled that the HOMO and LUMO of the two reacting partners resemble those of butadiene. The methodology allows for the construction of cyclooctadiene derivatives decorated with various functionalities. The cyclooctadienes were synthetically elaborated, allowing for structural diversity demonstrating their synthetic utility for the formation of, for example, chiral cyclobutene- or cyclooctane scaffolds. DFT computational studies shed light on the reaction mechanism identifying the preference for an initial but reversible [4 + 2] cycloaddition delivering an off-cycle catalyst resting state, from which catalyst elimination is not possible. The off-cycle catalyst-bound intermediate undergoes a retro-[4 + 2] cycloaddition, followed by a [4 + 4] cycloaddition generating a cycloadduct from which catalyst elimination is possible. The reaction pathway accounts for the observed peri-, diastereo-, and enantioselectivity of the organocatalytic [4 + 4] cycloaddition.
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Affiliation(s)
- Vasco Corti
- Department of Chemistry, Aarhus University, Aarhus C DK-8000, Denmark
| | | | | | - Anne Kristensen
- Department of Chemistry, Aarhus University, Aarhus C DK-8000, Denmark
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2
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Blanco C, Fogg DE. Water-Accelerated Decomposition of Olefin Metathesis Catalysts. ACS Catal 2023; 13:1097-1102. [PMID: 36714054 PMCID: PMC9872090 DOI: 10.1021/acscatal.2c05573] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/22/2022] [Indexed: 01/04/2023]
Abstract
Water is ubiquitous in olefin metathesis, at levels ranging from contaminant to cosolvent. It is also non-benign. Water-promoted catalyst decomposition competes with metathesis, even for "robust" ruthenium catalysts. Metathesis is hence typically noncatalytic for demanding reactions in water-rich environments (e.g., chemical biology), a challenge as the Ru decomposition products promote unwanted reactions such as DNA degradation. To date, only the first step of the decomposition cascade is understood: catalyst aquation. Here we demonstrate that the aqua species dramatically accelerate both β-elimination of the metallacyclobutane intermediate and bimolecular decomposition of four-coordinate [RuCl(H2O)n(L)(=CHR)]Cl. Decomposition can be inhibited by blocking aquation and β-elimination.
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Affiliation(s)
- Christian
O. Blanco
- Center
for Catalysis Research & Innovation and Department of Chemistry
and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Deryn E. Fogg
- Center
for Catalysis Research & Innovation and Department of Chemistry
and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario, Canada K1N 6N5,Department
of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway,,
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3
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Li Y, Tung CH, Xu Z. Synthesis of Benzofuran Derivates via a Gold-Catalyzed Claisen Rearrangement Cascade. Org Lett 2022; 24:5829-5834. [PMID: 35912957 DOI: 10.1021/acs.orglett.2c02388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel method toward a facile synthesis of diverse benzofuran derivates from easily obtained quinols and alkynyl esters has been reported. A gold-catalyzed intermolecular alkoxylation/Claisen rearrangement/condensation cascade was involved. The introduction of difluorodiphenylsilane as a water-trapping reagent in the reaction leads to a higher yield.
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Affiliation(s)
- Yankun Li
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Shandong University, No. 27 Shanda South Road, Jinan 250100, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Shandong University, No. 27 Shanda South Road, Jinan 250100, China
| | - Zhenghu Xu
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Shandong University, No. 27 Shanda South Road, Jinan 250100, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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4
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Cui X, Zhou F, Wu H, Zhou J. Asymmetric Tandem Reactions Achieved by Chiral Amine & Gold(I) Cooperative Catalysis. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202209016] [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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5
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Marciniec B, Pietraszuk C, Pawluć P, Maciejewski H. Inorganometallics (Transition Metal-Metalloid Complexes) and Catalysis. Chem Rev 2021; 122:3996-4090. [PMID: 34967210 PMCID: PMC8832401 DOI: 10.1021/acs.chemrev.1c00417] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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While the formation
and breaking of transition metal (TM)–carbon
bonds plays a pivotal role in the catalysis of organic compounds,
the reactivity of inorganometallic species, that is, those involving
the transition metal (TM)–metalloid (E) bond, is of key importance
in most conversions of metalloid derivatives catalyzed by TM complexes.
This Review presents the background of inorganometallic catalysis
and its development over the last 15 years. The results of mechanistic
studies presented in the Review are related to the occurrence of TM–E
and TM–H compounds as reactive intermediates in the catalytic
transformations of selected metalloids (E = B, Si, Ge, Sn, As, Sb,
or Te). The Review illustrates the significance of inorganometallics
in catalysis of the following processes: addition of metalloid–hydrogen
and metalloid–metalloid bonds to unsaturated compounds; activation
and functionalization of C–H bonds and C–X bonds with
hydrometalloids and bismetalloids; activation and functionalization
of C–H bonds with vinylmetalloids, metalloid halides, and sulfonates;
and dehydrocoupling of hydrometalloids. This first Review on inorganometallic
catalysis sums up the developments in the catalytic methods for the
synthesis of organometalloid compounds and their applications in advanced
organic synthesis as a part of tandem reactions.
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Affiliation(s)
- Bogdan Marciniec
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Cezary Pietraszuk
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Piotr Pawluć
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Hieronim Maciejewski
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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6
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Reetz MT, König G. n
‐Butanol: An Ecologically and Economically Viable Extraction Solvent for Isolating Polar Products from Aqueous Solutions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Manfred T. Reetz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
- Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences Tianjin China
| | - Gerhard König
- Centre for Enzyme Innovation University of Portsmouth St Michael's Building Portsmouth PO1 2DT United Kingdom
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7
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Synthesis and DFT studies of 1,2-disubstituted benzimidazoles using expeditious and magnetically recoverable CoFe2O4/Cu(OH)2 nanocomposite under solvent-free condition. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Abstract
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For numerous enabling features and strategic virtues, contemporary
alkyne metathesis is increasingly recognized as a formidable synthetic
tool. Central to this development was the remarkable evolution of
the catalysts during the past decades. Molybdenum alkylidynes carrying
(tripodal) silanolate ligands currently set the standards; their functional
group compatibility is exceptional, even though they comprise an early
transition metal in its highest oxidation state. Their performance
is manifested in case studies in the realm of dynamic covalent chemistry,
advanced applications to solid-phase synthesis, a revival of transannular
reactions, and the assembly of complex target molecules at sites,
which one may not intuitively trace back to an acetylenic ancestor.
In parallel with these innovations in material science and organic
synthesis, new insights into the mode of action of the most advanced
catalysts were gained by computational means and the use of unconventional
analytical tools such as 95Mo and 183W NMR spectroscopy.
The remaining shortcomings, gaps, and desiderata in the field are
also critically assessed.
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Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr, Germany
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9
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Neveselý T, Wienhold M, Molloy JJ, Gilmour R. Advances in the E → Z Isomerization of Alkenes Using Small Molecule Photocatalysts. Chem Rev 2021; 122:2650-2694. [PMID: 34449198 DOI: 10.1021/acs.chemrev.1c00324] [Citation(s) in RCA: 155] [Impact Index Per Article: 51.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Geometrical E → Z alkene isomerization is intimately entwined in the historical fabric of organic photochemistry and is enjoying a renaissance (Roth et al. Angew. Chem., Int. Ed. Engl. 1989 28, 1193-1207). This is a consequence of the fundamental stereochemical importance of Z-alkenes, juxtaposed with frustrations in thermal reactivity that are rooted in microscopic reversibility. Accessing excited state reactivity paradigms allow this latter obstacle to be circumnavigated by exploiting subtle differences in the photophysical behavior of the substrate and product chromophores: this provides a molecular basis for directionality. While direct irradiation is operationally simple, photosensitization via selective energy transfer enables augmentation of the alkene repertoire to include substrates that are not directly excited by photons. Through sustained innovation, an impressive portfolio of tailored small molecule catalysts with a range of triplet energies are now widely available to facilitate contra-thermodynamic and thermo-neutral isomerization reactions to generate Z-alkene fragments. This review is intended to serve as a practical guide covering the geometric isomerization of alkenes enabled by energy transfer catalysis from 2000 to 2020, and as a logical sequel to the excellent treatment by Dugave and Demange (Chem. Rev. 2003 103, 2475-2532). The mechanistic foundations underpinning isomerization selectivity are discussed together with induction models and rationales to explain the counterintuitive directionality of these processes in which very small energy differences distinguish substrate from product. Implications for subsequent stereospecific transformations, application in total synthesis, regioselective polyene isomerization, and spatiotemporal control of pre-existing alkene configuration in a broader sense are discussed.
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Affiliation(s)
- Tomáš Neveselý
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Max Wienhold
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - John J Molloy
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Ryan Gilmour
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Münster, Germany
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10
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Fürstner A. Lessons from Natural Product Total Synthesis: Macrocyclization and Postcyclization Strategies. Acc Chem Res 2021; 54:861-874. [PMID: 33507727 PMCID: PMC7893715 DOI: 10.1021/acs.accounts.0c00759] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
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Macrocyclic
natural products are plentiful in
the bacteria, archaea,
and eukaryote domains of life. For the significant advantages that
they provide to the producing organisms, evolution has learned how
to implement various types of macrocyclization reactions into the
different biosynthetic pathways and how to effect them with remarkable
ease. Mankind greatly benefits from nature’s pool, not least
because naturally occurring macrocycles or derivatives thereof serve
as important drugs for the treatment of many serious ailments. In stark contrast, macrocyclization reactions are usually perceived
as difficult to accomplish by purely chemical means. While it is true
that ring closure necessarily entails an entropic loss and may result
in the buildup of (considerable) ring strain that must be compensated
for in one way or the other, it is also fair to note tremendous methodological
advances during the last decades that greatly alleviated this traditional
“macrocycle challenge”. It is therefore increasingly
possible to explore the advantages provided by large as well as medium-size
ring systems in a more systematic manner. This venture also holds
the promise of increasing the “chemical space” amenable
to drug development to a considerable extent. In consideration
of this and other important long-term perspectives,
it is appropriate to revisit the current state of the art. To this
end, a number of vignettes are presented, each of which summarizes
a total synthesis project targeting macrocyclic natural products of
greatly different chemotypes using a variety of transformations to
reach these goals. Although we were occasionally facing “dead
ends”, which are also delineated for the sake of a complete
picture, these case studies illustrate the notion that the formation
of a certain macrocyclic perimeter is (usually) no longer seriously
limiting. In addition to substantial progress in the “classical”
repertoire (macrolactonization and macrolactamization
(pateamine A, spirastrellolide, and belizentrin)), various metal-catalyzed
reactions have arguably led to the greatest leaps forward. Among them,
palladium-catalyzed C–C bond formation (roseophilin and nominal
xestocyclamine A) and, in particular, alkene and alkyne metathesis
stand out (iejimalide, spirastrellolide, enigmazole, ingenamine, and
sinulariadiolide). In some cases, different methods were pursued in
parallel, thus allowing for a critical assessment and comparison. To the extent that the macrocyclic challenge is vanishing, the
opportunity arises to focus attention on the postmacrocyclization
phase. One may stipulate that a well-designed cyclization precursor
does not only ensure efficient ring closure but also fosters and streamlines
the steps that come after the event. One way to do so is dual (multiple)
use in that the functional groups serving the actual cyclization reaction
also find productive applications downstream from it rather than being
subject to simple defunctionalization. In this context,
better insight into the conformational peculiarities of large rings
and the growing confidence in their accessibility in a stereochemically
well defined format rejuvenate the implementation of transannular
reactions or reaction cascades that can lead to rapid and substantial
increases in molecular complexity. The examples summarized herein
showcase such possibilities, with special emphasis on tranannular
gold catalysis and the emerging ruthenium-catalyzed trans-hydrometalation chemistry for the selective functionalization of
alkynes.
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11
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Blanco CO, Sims J, Nascimento DL, Goudreault AY, Steinmann SN, Michel C, Fogg DE. The Impact of Water on Ru-Catalyzed Olefin Metathesis: Potent Deactivating Effects Even at Low Water Concentrations. ACS Catal 2021; 11:893-899. [PMID: 33614193 PMCID: PMC7886052 DOI: 10.1021/acscatal.0c04279] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/29/2020] [Indexed: 12/14/2022]
Abstract
Ruthenium catalysts for olefin metathesis are widely viewed as water-tolerant. Evidence is presented, however, that even low concentrations of water cause catalyst decomposition, severely degrading yields. Of 11 catalysts studied, fast-initiating examples (e.g., the Grela catalyst RuCl2(H2IMes)(=CHC6H4-2-O i Pr-5-NO2) were most affected. Maximum water tolerance was exhibited by slowly initiating iodide and cyclic (alkyl)(amino)carbene (CAAC) derivatives. Computational investigations indicated that hydrogen bonding of water to substrate can also play a role, by retarding cyclization relative to decomposition. These results have important implications for olefin metathesis in organic media, where water is a ubiquitous contaminant, and for aqueous metathesis, which currently requires superstoichiometric "catalyst" for demanding reactions.
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Affiliation(s)
- Christian O. Blanco
- Center for Catalysis Research & Innovation, and
Department of Chemistry and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario K1N 6N57, Canada
| | - Joshua Sims
- Univ. Lyon, ENS de Lyon,
CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratorie de Chimie, F-69342
Lyon, France
| | - Daniel L. Nascimento
- Center for Catalysis Research & Innovation, and
Department of Chemistry and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario K1N 6N57, Canada
| | - Alexandre Y. Goudreault
- Center for Catalysis Research & Innovation, and
Department of Chemistry and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario K1N 6N57, Canada
| | - Stephan N. Steinmann
- Univ. Lyon, ENS de Lyon,
CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratorie de Chimie, F-69342
Lyon, France
| | - Carine Michel
- Univ. Lyon, ENS de Lyon,
CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratorie de Chimie, F-69342
Lyon, France
| | - Deryn E. Fogg
- Center for Catalysis Research & Innovation, and
Department of Chemistry and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario K1N 6N57, Canada
- Department of Chemistry, University of
Bergen, Allégaten 41, N-5007 Bergen,
Norway
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12
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CoFe2O4/Cu(OH)2 Nanocomposite: Expeditious and magnetically recoverable heterogeneous catalyst for the four component Biginelli/transesterification reaction and their DFT studies. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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13
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From Target-Oriented to Motif-Oriented: A Case Study on Nannocystin Total Synthesis. Molecules 2020; 25:molecules25225327. [PMID: 33203102 PMCID: PMC7697126 DOI: 10.3390/molecules25225327] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 01/14/2023] Open
Abstract
Natural product total synthesis is in essence target-oriented in that a set of organic transformations are orchestrated into a workable process, leading ultimately to the target molecule with a predefined architecture. For a bioactive lead, proof of synthetic viability is merely the beginning. Ensuing effort repurposes the initial synthesis for structural diversification in order to probe structure-activity relationship (SAR). Yet accessibility is not equal to flexibility; moving from convergency to divergency, it is not always feasible to explore the chemical space around a particular substructure of interest simply by tweaking an established route. In this situation, the motif-oriented strategy becomes a superior choice, which gives priority to synthetic flexibility at the concerned site such that a route is adopted only if it is capable of implementing diversification therein. This strategy was recently devised by Fürstner et al., enabling them to achieve total synthesis of both natural and non-natural nannocystins varied at an otherwise challenging position. The present review examines seven distinctive nannocystin total syntheses reported thus far and showcases the merits of conventional (target-oriented) as well as motif-oriented strategies, concluding that these two approaches complement each other and are both indispensable for natural product based drug discovery.
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14
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Vijjamarri S, O’Denius TM, Yao B, Kubátová A, Du G. Highly Selective Hydroboration of Carbonyls by a Manganese Catalyst: Insight into the Reaction Mechanism. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00448] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Srikanth Vijjamarri
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop 9024, Grand Forks, North Dakota 58202, United States
| | - Timothy M. O’Denius
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop 9024, Grand Forks, North Dakota 58202, United States
| | - Bin Yao
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop 9024, Grand Forks, North Dakota 58202, United States
| | - Alena Kubátová
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop 9024, Grand Forks, North Dakota 58202, United States
| | - Guodong Du
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop 9024, Grand Forks, North Dakota 58202, United States
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15
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Ding L, Wu WT, Zhang L, You SL. Construction of Spironaphthalenones via Gold-Catalyzed Intramolecular Dearomatization Reaction of β-Naphthol Derivatives. Org Lett 2020; 22:5861-5865. [DOI: 10.1021/acs.orglett.0c01945] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lu Ding
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Wen-Ting Wu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Liming Zhang
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
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16
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Wu WT, Ding L, Zhang L, You SL. Gold-Catalyzed Intramolecular Dearomatization Reactions of Indoles for the Synthesis of Spiroindolenines and Spiroindolines. Org Lett 2020; 22:1233-1238. [PMID: 31789039 DOI: 10.1021/acs.orglett.9b03988] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A gold-catalyzed dearomatization reaction of indole derivatives was realized in the presence of JohnPhosAuCl/AgOMs to afford a series of spiroindolenines in excellent yields (≤99%). In addition, when the Hantzsch ester was used as the hydrogen transfer reagent, various spiroindolines were obtained in a cascade fashion starting from readily available indole derivatives in modest to good yields (≤79%). Both reactions feature readily available substrates, mild conditions, and good functional group tolerance.
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Affiliation(s)
- Wen-Ting Wu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 LinglingLu , Shanghai 200032 , China
| | - Lu Ding
- School of Physical Science and Technology , ShanghaiTech University , 100 Haike Road , Shanghai 201210 , China
| | - Liming Zhang
- Department of Chemistry & Biochemistry , University of California, Santa Barbara , Santa Barbara , California 93106 , United States
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 LinglingLu , Shanghai 200032 , China.,School of Physical Science and Technology , ShanghaiTech University , 100 Haike Road , Shanghai 201210 , China
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17
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Kennedy CR, Zhong H, Macaulay RL, Chirik PJ. Regio- and Diastereoselective Iron-Catalyzed [4+4]-Cycloaddition of 1,3-Dienes. J Am Chem Soc 2019; 141:8557-8573. [PMID: 31060353 DOI: 10.1021/jacs.9b02443] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A family of single-component iron precatalysts for the [4+4]-cyclodimerization and intermolecular cross-[4+4]-cycloaddition of monosubstituted 1,3-dienes is described. Cyclooctadiene products were obtained with high regioselectivity, and catalyst-controlled access to either cis- or trans-diastereomers was achieved using 4-substituted diene substrates. Reactions conducted either with single-component precatalysts or with iron dihalide complexes activated in situ proved compatible with common organic functional groups and were applied on multigram scale (up to >100 g). Catalytically relevant, S = 1 iron complexes bearing 2-(imino)pyridine ligands, (RPI)FeL2 (RPI = [2-(2,6-R2-C6H3-N═CMe)-C5H4N] where R = iPr or Me, L2 = bis-olefin), were characterized by single-crystal X-ray diffraction, Mößbauer spectroscopy, magnetic measurements, and DFT calculations. The structural and spectroscopic parameters are consistent with an electronic structure description comprised of a high spin iron(I) center ( SFe = 3/2) engaged in antiferromagnetically coupling with a ligand radical anion ( SPI = -1/2). Mechanistic studies conducted with these single-component precatalysts, including kinetic analyses, 12C/13C isotope effect measurements, and in situ Mößbauer spectroscopy, support a mechanism involving oxidative cyclization of two dienes that determines regio- and diastereoselectivity. Topographic steric maps derived from crystallographic data provided insights into the basis for the catalyst control through stereoselective oxidative cyclization and subsequent, stereospecific allyl-isomerization and C-C bond-forming reductive elimination.
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Affiliation(s)
- C Rose Kennedy
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
| | - Hongyu Zhong
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
| | - Rachel L Macaulay
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
| | - Paul J Chirik
- Department of Chemistry , Princeton University , Princeton , New Jersey 08544 , United States
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18
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Kumar CVS, Holyoke CW, Fleming FF. Diastereoselective Electrophile-Directed Alkylations. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Caleb W. Holyoke
- Department of Chemistry; Drexel University; 32 South 32nd St. Philadelphia PA 19104 USA
| | - Fraser F. Fleming
- Department of Chemistry; Drexel University; 32 South 32nd St. Philadelphia PA 19104 USA
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19
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20
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Sharma MK, Ansari M, Mahawar P, Rajaraman G, Nagendran S. Expanding the limits of catalysts with low-valent main-group elements for the hydroboration of aldehydes and ketones using [L†Sn(ii)][OTf] (L† = aminotroponate; OTf = triflate). Dalton Trans 2019; 48:664-672. [DOI: 10.1039/c8dt02857e] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A triflatostannylene [L†Sn][OTf] (2) is found to be an efficient catalyst with low-valent main-group element for the hydroboration of aldehydes and ketones.
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Affiliation(s)
| | - Mursaleem Ansari
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Pritam Mahawar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
| | - Gopalan Rajaraman
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Selvarajan Nagendran
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
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21
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Karier P, Ungeheuer F, Ahlers A, Anderl F, Wille C, Fürstner A. Metathesis at an Implausible Site: A Formal Total Synthesis of Rhizoxin D. Angew Chem Int Ed Engl 2018; 58:248-253. [DOI: 10.1002/anie.201812096] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Pol Karier
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Felix Ungeheuer
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Andreas Ahlers
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Felix Anderl
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Christian Wille
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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22
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Karier P, Ungeheuer F, Ahlers A, Anderl F, Wille C, Fürstner A. Metathesis at an Implausible Site: A Formal Total Synthesis of Rhizoxin D. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Pol Karier
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Felix Ungeheuer
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Andreas Ahlers
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Felix Anderl
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Christian Wille
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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23
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Bisz E, Szostak M. Iron‐Catalyzed C(
sp
2
)−C(
sp
3
) Cross‐Coupling of Chlorobenzamides with Alkyl Grignard Reagents: Development of Catalyst System, Synthetic Scope, and Application. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800849] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Elwira Bisz
- Department of Chemistry Opole University 48 Oleska Street Opole 45-052 Poland
| | - Michal Szostak
- Department of Chemistry Opole University 48 Oleska Street Opole 45-052 Poland
- Department of Chemistry Rutgers University 73 Warren Street Newark NJ 07102 United States
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24
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Fürstner A. trans-Hydrogenation, gem-Hydrogenation, and trans-Hydrometalation of Alkynes: An Interim Report on an Unorthodox Reactivity Paradigm. J Am Chem Soc 2018; 141:11-24. [DOI: 10.1021/jacs.8b09782] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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25
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Cormier M, de la Torre A, Marek I. Total Synthesis of C30 Botryococcene and
epi
‐Botryococcene by a Diastereoselective Ring Opening of Alkenylcyclopropanes. Angew Chem Int Ed Engl 2018; 57:13237-13241. [DOI: 10.1002/anie.201808709] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 08/22/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Morgan Cormier
- Technion—Israel Institute of TechnologySchulich Faculty of Chemistry Technion City Haifa 32000 Israel
| | - Aurélien de la Torre
- Technion—Israel Institute of TechnologySchulich Faculty of Chemistry Technion City Haifa 32000 Israel
| | - Ilan Marek
- Technion—Israel Institute of TechnologySchulich Faculty of Chemistry Technion City Haifa 32000 Israel
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26
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Cormier M, de la Torre A, Marek I. Total Synthesis of C30 Botryococcene and
epi
‐Botryococcene by a Diastereoselective Ring Opening of Alkenylcyclopropanes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808709] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Morgan Cormier
- Technion—Israel Institute of TechnologySchulich Faculty of Chemistry Technion City Haifa 32000 Israel
| | - Aurélien de la Torre
- Technion—Israel Institute of TechnologySchulich Faculty of Chemistry Technion City Haifa 32000 Israel
| | - Ilan Marek
- Technion—Israel Institute of TechnologySchulich Faculty of Chemistry Technion City Haifa 32000 Israel
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27
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Wang Z, Chen L, Yao Y, Liu Z, Gao JM, She X, Zheng H. Dearomatization of Indole via Intramolecular [3 + 2] Cycloaddition: Access to the Pentacyclic Skeleton of Strychons Alkaloids. Org Lett 2018; 20:4439-4443. [PMID: 30016108 DOI: 10.1021/acs.orglett.8b01720] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient method to build various multisubstituted polycyclic indoline-annulated normal to medium-size rings through dearomatization of indole via a tandem 1,2-acyloxy migration/intramolecular [3 + 2] cycloaddition process is described. The pentacyclic skeleton of strychnine could be synthesized via this tandem cycloaddition and a further Mannich reaction. This approach would provide a novel strategy to the synthesis of strychons alkaloids.
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Affiliation(s)
- Zhengshen Wang
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Luxin Chen
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Yuan Yao
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Zhigang Liu
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou 730000 , China
| | - Huaiji Zheng
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China.,Key Laboratory of Botanical Pesticide R&D in Shaanxi Province , Yangling 712100 , China
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28
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Mo X, Letort A, Roşca DA, Higashida K, Fürstner A. Site-Selectivetrans-Hydrostannation of 1,3- and 1,n-Diynes: Application to the Total Synthesis of Typhonosides E and F, and a Fluorinated Cerebroside Analogue. Chemistry 2018; 24:9667-9674. [DOI: 10.1002/chem.201801344] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaobin Mo
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Aurélien Letort
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | | | - Kosuke Higashida
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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29
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Tindall DJ, Werlé C, Goddard R, Philipps P, Farès C, Fürstner A. Structure and Reactivity of Half-Sandwich Rh(+3) and Ir(+3) Carbene Complexes. Catalytic Metathesis of Azobenzene Derivatives. J Am Chem Soc 2018; 140:1884-1893. [DOI: 10.1021/jacs.7b12673] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Daniel J. Tindall
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Christophe Werlé
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Petra Philipps
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Christophe Farès
- 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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30
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Huang Z, Liu D, Camacho-Bunquin J, Zhang G, Yang D, López-Encarnación JM, Xu Y, Ferrandon MS, Niklas J, Poluektov OG, Jellinek J, Lei A, Bunel EE, Delferro M. Supported Single-Site Ti(IV) on a Metal–Organic Framework for the Hydroboration of Carbonyl Compounds. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00544] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhiyuan Huang
- College of Chemistry & Molecular Sciences, Institute of Advanced Studies, Wuhan University, Wuhan 430072, PR China
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Dong Liu
- College of Chemistry & Molecular Sciences, Institute of Advanced Studies, Wuhan University, Wuhan 430072, PR China
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jeffrey Camacho-Bunquin
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Guanghui Zhang
- Department
of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Dali Yang
- College of Chemistry & Molecular Sciences, Institute of Advanced Studies, Wuhan University, Wuhan 430072, PR China
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Juan M. López-Encarnación
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department
of Mathematics-Physics, University of Puerto Rico at Cayey, Cayey, Puerto Rico 00736, United States
| | - Yunjie Xu
- Department
of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Magali S. Ferrandon
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jens Niklas
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Oleg G. Poluektov
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Julius Jellinek
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Aiwen Lei
- College of Chemistry & Molecular Sciences, Institute of Advanced Studies, Wuhan University, Wuhan 430072, PR China
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Emilio E. Bunel
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Massimiliano Delferro
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
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31
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Huwyler N, Radkowski K, Rummelt SM, Fürstner A. Two Enabling Strategies for the Stereoselective Conversion of Internal Alkynes into Trisubstituted Alkenes. Chemistry 2017; 23:12412-12419. [DOI: 10.1002/chem.201702470] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Nikolas Huwyler
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Karin Radkowski
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | | | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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32
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Sommer H, Hamilton JY, Fürstner A. A Method for the Late-Stage Formation of Ketones, Acyloins, and Aldols from Alkenylstannanes: Application to the Total Synthesis of Paecilonic Acid A. Angew Chem Int Ed Engl 2017; 56:6161-6165. [DOI: 10.1002/anie.201701391] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Indexed: 01/04/2023]
Affiliation(s)
- Heiko Sommer
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | | | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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33
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Sommer H, Hamilton JY, Fürstner A. A Method for the Late-Stage Formation of Ketones, Acyloins, and Aldols from Alkenylstannanes: Application to the Total Synthesis of Paecilonic Acid A. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701391] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Heiko Sommer
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | | | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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34
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Debrouwer W, Fürstner A. Rearrangement of a Transient Gold Vinylidene into Gold Carbenes. Chemistry 2017; 23:4271-4275. [DOI: 10.1002/chem.201700326] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Wouter Debrouwer
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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35
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Factorial design evaluation of the Suzuki cross-coupling reaction using a magnetically recoverable palladium catalyst. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Rummelt SM, Cheng G, Gupta P, Thiel W, Fürstner A. Hydroxy‐Directed Ruthenium‐Catalyzed Alkene/Alkyne Coupling: Increased Scope, Stereochemical Implications, and Mechanistic Rationale. Angew Chem Int Ed Engl 2017; 56:3599-3604. [DOI: 10.1002/anie.201700342] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Indexed: 11/08/2022]
Affiliation(s)
| | - Gui‐Juan Cheng
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Puneet Gupta
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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37
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Rummelt SM, Cheng G, Gupta P, Thiel W, Fürstner A. Hydroxy‐Directed Ruthenium‐Catalyzed Alkene/Alkyne Coupling: Increased Scope, Stereochemical Implications, and Mechanistic Rationale. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700342] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Gui‐Juan Cheng
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Puneet Gupta
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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38
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Iron-Catalyzed C−H Alkynylation through Triazole Assistance: Expedient Access to Bioactive Heterocycles. Chemistry 2017; 23:3577-3582. [DOI: 10.1002/chem.201700587] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Indexed: 12/20/2022]
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39
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Song LJ, Wang T, Zhang X, Chung LW, Wu YD. A Combined DFT/IM-MS Study on the Reaction Mechanism of Cationic Ru(II)-Catalyzed Hydroboration of Alkynes. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03214] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Li-Juan Song
- Lab
of Computational Chemistry and Drug Design, Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Ting Wang
- Lab
of Computational Chemistry and Drug Design, Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xinhao Zhang
- Lab
of Computational Chemistry and Drug Design, Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Lung Wa Chung
- Department
of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Yun-Dong Wu
- Lab
of Computational Chemistry and Drug Design, Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- College
of Chemistry, Peking University, Beijing 100871, China
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40
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McGee P, Bétournay G, Barabé F, Barriault L. A 11-Steps Total Synthesis of Magellanine through a Gold(I)-Catalyzed Dehydro Diels-Alder Reaction. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611606] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Philippe McGee
- Center for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa K1N 6N5 Canada
| | - Geneviève Bétournay
- Center for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa K1N 6N5 Canada
| | - Francis Barabé
- Center for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa K1N 6N5 Canada
| | - Louis Barriault
- Center for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa K1N 6N5 Canada
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41
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McGee P, Bétournay G, Barabé F, Barriault L. A 11-Steps Total Synthesis of Magellanine through a Gold(I)-Catalyzed Dehydro Diels-Alder Reaction. Angew Chem Int Ed Engl 2017; 56:6280-6283. [PMID: 28079949 DOI: 10.1002/anie.201611606] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Indexed: 11/10/2022]
Abstract
We have developed an innovative strategy for the formation of angular carbocycles via a gold(I)-catalyzed dehydro Diels-Alder reaction. This transformation provides rapid access to a variety of complex angular cores in excellent diastereoselectivities and high yields. The usefulness of this AuI -catalyzed cycloaddition was further demonstrated by accomplishing a 11-steps total synthesis of (±)-magellanine.
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Affiliation(s)
- Philippe McGee
- Center for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, K1N 6N5, Canada
| | - Geneviève Bétournay
- Center for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, K1N 6N5, Canada
| | - Francis Barabé
- Center for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, K1N 6N5, Canada
| | - Louis Barriault
- Center for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, K1N 6N5, Canada
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42
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Maddock LCH, Borilovic I, McIntyre J, Kennedy AR, Aromí G, Hevia E. Synthetic, structural and magnetic implications of introducing 2,2′-dipyridylamide to sodium-ferrate complexes. Dalton Trans 2017; 46:6683-6691. [DOI: 10.1039/c7dt01319a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Establishing transamination as an efficient method to access novel heterobimetallic complexes, this study provides magnetic and structural insights of 2,2-dipyridylamide based sodium ferrate complexes.
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Affiliation(s)
- Lewis C. H. Maddock
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Ivana Borilovic
- Department de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Jamie McIntyre
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Alan R. Kennedy
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Guillem Aromí
- Department de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Eva Hevia
- WestCHEM
- Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
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43
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Cera G, Haven T, Ackermann L. Iron-catalyzed C–H/N–H activation by triazole guidance: versatile alkyne annulation. Chem Commun (Camb) 2017; 53:6460-6463. [DOI: 10.1039/c7cc03376a] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iron-catalyzed C–H/N–H functionalizations were achieved by the aid of modular triazole amides.
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Affiliation(s)
- G. Cera
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität
- 37077 Göttingen
- Germany
| | - T. Haven
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität
- 37077 Göttingen
- Germany
| | - L. Ackermann
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität
- 37077 Göttingen
- Germany
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44
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Solomon MB, Church TL, D'Alessandro DM. Perspectives on metal–organic frameworks with intrinsic electrocatalytic activity. CrystEngComm 2017. [DOI: 10.1039/c7ce00215g] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This highlight article focuses on the rapidly emerging area of electrocatalytic metal–organic frameworks (MOFs) with a particular emphasis on those systems displaying intrinsic activity.
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Affiliation(s)
| | - Tamara L. Church
- School of Chemistry
- The University of Sydney
- Australia
- Department of Materials and Environmental Chemistry
- Stockholms Universitet
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45
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Sommer H, Fürstner A. Stereospecific Synthesis of Fluoroalkenes by Silver-Mediated Fluorination of Functionalized Alkenylstannanes. Chemistry 2016; 23:558-562. [PMID: 27883234 DOI: 10.1002/chem.201605444] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Indexed: 12/21/2022]
Abstract
The known procedures for the conversion of alkenylstannanes into the corresponding fluoroalkenes suffer from largely variable yields and a limited compatibility with functional groups; most notably, protodestannation becomes a serious issue whenever protic sites are present in the substrate. Outlined in this paper is a convenient alternative with a much improved application profile, which is largely unperturbed by free alcohols and amides of all sorts. Key to success is the use of F-TEDA-PF6 in combination with non-hygroscopic and bench-stable silver phosphinate (AgOP(O)Ph2 ) that acts as an essentially neutral, non-nucleophilic promotor and effective tin-scavenger at the same time. This new method opens many opportunities for late-stage fluorination of elaborate compounds far beyond the scope of the literature procedures, as witnessed by the preparation of a fluorinated macrolide antibiotic, a fluorinated prostaglandin derivative, and a set of fluorinated amino acid surrogates and peptide isosteres.
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Affiliation(s)
- Heiko Sommer
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
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46
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Kärkäs M, Porco JA, Stephenson CRJ. Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. Chem Rev 2016; 116:9683-747. [PMID: 27120289 PMCID: PMC5025835 DOI: 10.1021/acs.chemrev.5b00760] [Citation(s) in RCA: 671] [Impact Index Per Article: 83.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Indexed: 01/29/2023]
Abstract
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the involvement of electronically excited states, generated upon absorption of photons. This produces transient reactive intermediates and significantly alters the reactivity of a chemical compound. The input of energy provided by light thus offers a means to produce strained and unique target compounds that cannot be assembled using thermal protocols. This review aims at highlighting photochemical transformations as a tool for rapidly accessing structurally and stereochemically diverse scaffolds. Synthetic designs based on photochemical transformations have the potential to afford complex polycyclic carbon skeletons with impressive efficiency, which are of high value in total synthesis.
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Affiliation(s)
- Markus
D. Kärkäs
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - John A. Porco
- Department
of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Corey R. J. Stephenson
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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47
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Miaskiewicz S, Gaillard B, Kern N, Weibel JM, Pale P, Blanc A. Gold(I)-Catalyzed N-Desulfonylative Amination versus N-to-O 1,5-Sulfonyl Migration: A Versatile Approach to 1-Azabicycloalkanes. Angew Chem Int Ed Engl 2016; 55:9088-92. [PMID: 27309374 DOI: 10.1002/anie.201604329] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Indexed: 12/17/2022]
Abstract
Valuable 1-azabicycloalkane derivatives have been synthesized through a novel gold(I)-catalyzed desulfonylative cyclization strategy. An ammoniumation reaction of ynones substituted at the 1-position with an N-sulfonyl azacycle took place in the presence of a gold cation by intramolecular cyclization of the disubstituted sulfonamide moiety onto the triple bond. Depending on the size of the heterocyclic ring and substitution of the substrates, two unprecedented forms of nucleophilic attack on the sulfonyl group were exploited, that is, a N-desulfonylation in the presence of an external protic O nucleophile (37-87 %, 10 examples) and a unique N-to-O 1,5-sulfonyl migration (60-98 %, 9 examples).
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Affiliation(s)
- Solène Miaskiewicz
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
| | - Boris Gaillard
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
| | - Nicolas Kern
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France
| | | | - Patrick Pale
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France.
| | - Aurélien Blanc
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie, Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg, France.
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48
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Miaskiewicz S, Gaillard B, Kern N, Weibel JM, Pale P, Blanc A. Gold(I)-Catalyzed N-Desulfonylative Amination versus N-to-O 1,5-Sulfonyl Migration: A Versatile Approach to 1-Azabicycloalkanes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604329] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Solène Miaskiewicz
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie; Université de Strasbourg; 4 rue Blaise Pascal 67070 Strasbourg France
| | - Boris Gaillard
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie; Université de Strasbourg; 4 rue Blaise Pascal 67070 Strasbourg France
| | - Nicolas Kern
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie; Université de Strasbourg; 4 rue Blaise Pascal 67070 Strasbourg France
| | | | - Patrick Pale
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie; Université de Strasbourg; 4 rue Blaise Pascal 67070 Strasbourg France
| | - Aurélien Blanc
- Laboratoire de Synthèse, Réactivité Organiques et Catalyse, UMR 7177 associé au CNRS, Institut de Chimie; Université de Strasbourg; 4 rue Blaise Pascal 67070 Strasbourg France
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49
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Sommer H, Fürstner A. Hydroxyl-Assisted Carbonylation of Alkenyltin Derivatives: Development and Application to a Formal Synthesis of Tubelactomicin A. Org Lett 2016; 18:3210-3. [PMID: 27280547 DOI: 10.1021/acs.orglett.6b01431] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Alkenyltin derivatives flanked by a hydroxyl group are subject to methoxycarbonylation when treated with catalytic amounts of Pd(OAc)2 and Ph3As in MeOH under a CO atmosphere; key to success is the use of 1,4-benzoquinone as a stoichiometric oxidant in combination with trifluoroacetic acid as a cocatalyst. The acid lowers the LUMO of the quinone and likely marshals the critical assembly of the substrates. Under the optimized conditions, competing proto-destannation is marginal; the method proved compatible with various (acid sensitive) functional groups and was applied to a short formal total synthesis of the antibiotic tubelactomicin A.
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Affiliation(s)
- Heiko Sommer
- Max-Planck-Institut für Kohlenforschung , 45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung , 45470 Mülheim/Ruhr, Germany
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50
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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