1
|
Montagnon C, Bultel JR, Besnard C, Guénée L, Lacour J. Polycyclic Pyrazolidines by Tandem Diazomalonate Dipolar Cycloadditions and CpRu-Catalyzed Carbene Additions. Chemistry 2024; 30:e202401522. [PMID: 38726887 DOI: 10.1002/chem.202401522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Indexed: 07/12/2024]
Abstract
Thanks to the ability of diazo derivatives to react either as 1,3-dipoles and as carbenes after dinitrogen extrusion, combinations of oxa or aza benzonorbornadienes and diazomalonates afford polycyclic pyrazolidines via a three-step sequence of (i) a highly diastereoselective [3+2]-cycloaddition, (ii) a CpRu-catalyzed carbene addition, and (iii) a second dipolar cycloaddition. Of importance, step (II) represents a unique access to novel bench-stable N,N-cyclic azomethine imines, which behave as effective 1,3-dipoles in combination with electron-poor dipolarophiles. Each step proceeds efficiently and the 3-step process can be performed in one-pot to yield a polycyclic pyrazolidine in excellent overall yield (90 %).
Collapse
Affiliation(s)
- Claire Montagnon
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211, Geneva 4, Switzerland
| | - Joël R Bultel
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211, Geneva 4, Switzerland
| | - Céline Besnard
- Laboratoire de Cristallographie, University of Geneva, Quai Ernest Ansermet 24, 1211, Geneva 4, Switzerland
| | - Laure Guénée
- Laboratoire de Cristallographie, University of Geneva, Quai Ernest Ansermet 24, 1211, Geneva 4, Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211, Geneva 4, Switzerland
| |
Collapse
|
2
|
Zhong Z, Besnard C, Lacour J. General Ir-Catalyzed N-H Insertions of Diazomalonates into Aliphatic and Aromatic Amines. Org Lett 2024; 26:983-987. [PMID: 38277489 PMCID: PMC10863398 DOI: 10.1021/acs.orglett.3c03929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 01/28/2024]
Abstract
A general N-H insertion reactivity of acceptor-acceptor diazo malonate reagents is reported using [Ir(cod)Cl]2 as catalyst. A large range of amines, primary and secondary, aliphatic and aromatic, is possible. Mild temperatures, perfect substrate/reactant stoichiometry, and good functional group compatibility render the process particularly attractive for the (late-stage) functionalization of amines.
Collapse
Affiliation(s)
- Zhuang Zhong
- Department
of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Genève 4, Switzerland
| | - Céline Besnard
- Laboratory
of Crystallography, University of Geneva, Quai Ernest Ansermet 24, CH-1211 Genève 4, Switzerland
| | - Jérôme Lacour
- Department
of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Genève 4, Switzerland
| |
Collapse
|
3
|
Pál D, Lacour J. Pfeiffer effect on configurationally labile dyes within ternary complexes with metal ions and enantiopure macrocycles. Dalton Trans 2024; 53:2665-2669. [PMID: 38224291 PMCID: PMC10845008 DOI: 10.1039/d3dt04098d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 01/10/2024] [Indexed: 01/16/2024]
Abstract
A configurationally-labile helical dye, 2,4,5,7-tetranitrofluorenone oximate, is used to probe complexes made of enantiopure macrocycles and mono/divalent metal ions. Induced electronic circular dichroism (ECD) and 1H NMR responses are amplified at room temperature only in the presence of K+ and Na+ ions despite larger binding efficiency with alkaline earth metal ions.
Collapse
Affiliation(s)
- Dávid Pál
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Geneva, Switzerland.
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Geneva, Switzerland.
| |
Collapse
|
4
|
Abshire A, Ogunyemi B, Darko A. Rh(II)-Catalyzed Si-H Insertion with Nosyl-hydrazone-Protected Aryl Donor Diazo Compounds. ACS OMEGA 2023; 8:38005-38012. [PMID: 37867650 PMCID: PMC10586302 DOI: 10.1021/acsomega.3c03519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 09/07/2023] [Indexed: 10/24/2023]
Abstract
Dirhodium(II,II) paddlewheel catalysts were evaluated in silyl-hydrogen insertion reactions of aryl diazo compounds generated from o-nosyl hydrazones. The high reactivity of aryl diazo compounds necessitates their in situ generation from sulfonyl-protected hydrazones. Herein, we describe our efforts to evaluate this transformation utilizing Rh(II) catalysts, including those with tethered, axially coordinating ligands. The heteroleptic catalyst, Rh2(OAc)3(2-OX), provided the highest yield of silanes when dioxane was the solvent.
Collapse
Affiliation(s)
- Anthony Abshire
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Bukola Ogunyemi
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Ampofo Darko
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| |
Collapse
|
5
|
Homberg A, Navazio F, Le Tellier A, Zinna F, Fürstenberg A, Besnard C, Di Bari L, Lacour J. Circularly polarized luminescence from Tb(III) interacting with chiral polyether macrocycles. Dalton Trans 2022; 51:16479-16485. [PMID: 36218085 PMCID: PMC9641584 DOI: 10.1039/d2dt02627a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/04/2022] [Indexed: 10/14/2023]
Abstract
A straightforward two-step synthesis protocol affords a series of chiral amide-based bis-pyridine substituted polyether macrocycles. One ligand is particularly able to complex terbium(III) ions spontaneously. Upon complexation, interesting chiroptical properties are observed both in absorbance (ECD) and in fluorescence (CPL). In ligand-centered electronic circular dichroism, a sign inversion coupled with a signal enhancement is measured; while an easily detectable metal-centered circularly polarized luminescence with a glum of 0.05 is obtained for the main 5D4 → 7F5 terbium transition. The coordination mode and structure of the complex was studied using different analysis methods (NMR analysis, spectrophotometric titration and solid-state elucidation).
Collapse
Affiliation(s)
- Alexandre Homberg
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
| | - Federica Navazio
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino n. 1, 62032 Camerino, Italy
| | - Antoine Le Tellier
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Alexandre Fürstenberg
- Department of Inorganic and Analytical Chemistry, University of Geneva, 1211 Geneva, Switzerland
- Department of Physical Chemistry, University of Geneva, 1211 Geneva, Switzerland
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 24, 1211 Geneva 4, Switzerland
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
| |
Collapse
|
6
|
Guranova N, Dar'in D, Kantin G, Krasavin M. Oxonium Ylides Generated from 1,4‐Disubstituted α‐Diazo Glutaconimides: a Rich Source of Diverse Oxygen Heterocyclic Frameworks. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Natalia Guranova
- Dr. Saint Petersburg State University 199034 Saint Petersburg Russian Federation
| | - Dmitry Dar'in
- Dr. Saint Petersburg State University 199034 Saint Petersburg Russian Federation
| | - Grigory Kantin
- Dr. Saint Petersburg State University 199034 Saint Petersburg Russian Federation
| | - Mikhail Krasavin
- Dr. Saint Petersburg State University 199034 Saint Petersburg Russian Federation
| |
Collapse
|
7
|
Baghdasaryan A, Brun E, Wang Y, Salassa G, Lacour J, Bürgi T. Combined spectroscopic studies on post-functionalized Au 25 cluster as an ATR-FTIR sensor for cations. Chem Sci 2021; 12:7419-7427. [PMID: 34163832 PMCID: PMC8171333 DOI: 10.1039/d1sc01654g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 04/20/2021] [Indexed: 11/21/2022] Open
Abstract
Recently, significant research activity has been devoted to thiolate-protected gold clusters due to their attractive optical and electronic properties. These properties as well as solubility and stability can be controlled by post-synthetic modification strategies. Herein, the ligand exchange reaction between Au25(2-PET)18 cluster (where 2-PET is 2-phenylethanethiol) and di-thiolated crown ether (t-CE) ligands bearing two chromophores was studied. The post-functionalization aimed to endow the cluster with ion binding properties. The exchange reaction was followed in situ by UV-vis, 1H NMR and HPLC. MALDI mass analysis revealed the incorporation of up to 5 t-CE ligands into the ligand shell. Once functionalized MALDI furthermore showed complexation of sodium ions to the cluster. ATR-FTIR spectroscopic studies using aqueous solutions of K+, Ba2+, Gd3+ and Eu3+ showed noticeable spectral shifts of the C-O stretching band around 1100 cm-1 upon complexation. Further spectral changes point towards a conformational change of the two chromophores that are attached to the crown ether. Density functional theory calculations indicate that the di-thiol ligand bridges two staple units on the cluster. The calculations furthermore reproduce the spectral shift of the C-O stretching vibrations upon complex formation and reveal a conformational change that involves the two chromophores attached to the crown ether. The functionalized clusters have therefore attractive ion sensing properties due to the combination of binding properties, mainly due to the crown ether, and the possibility for signal transduction via an induced conformational change involving chromophore units.
Collapse
Affiliation(s)
- Ani Baghdasaryan
- Department of Physical Chemistry, University of Geneva 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
| | - Elodie Brun
- Department of Organic Chemistry, University of Geneva 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
| | - Yuming Wang
- Department of Physical Chemistry, University of Geneva 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
| | - Giovanni Salassa
- Department of Physical Chemistry, University of Geneva 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
| |
Collapse
|
8
|
Aster A, Zinna F, Rumble C, Lacour J, Vauthey E. Singlet Fission in a Flexible Bichromophore with Structural and Dynamic Control. J Am Chem Soc 2021; 143:2361-2371. [PMID: 33512153 DOI: 10.1021/jacs.0c12384] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Singlet fission (SF), i.e., the splitting of a high-energy exciton into two lower-energy triplet excitons, has the potential to increase the efficiency for harvesting spectrally broad light. The path from the photopopulated singlet state to free triplets is complicated by competing processes that decrease the overall SF efficiency. A detailed understanding of the whole cascade and the nature of the photoexcited singlet state is still a major challenge. Here, we introduce a pentacene dimer with a flexible crown ether spacer enabling a control of the interchromophore coupling upon solvent-induced self-aggregation as well as cation binding. The systematic change of solvent polarity and viscosity and excitation wavelength, as well as the available conformational phase space, allows us to draw a coherent picture of the whole SF cascade from the femtosecond to microsecond time scales. High coupling leads to ultrafast SF (<2 ps), independent of the solvent polarity, and to highly coupled correlated triplet pairs. The absence of a polarity effect indicates that the solvent coordinate does not play a significant role and that SF is driven by intramolecular modes. Low coupling results in much slower SF (∼500 ps), which depends on viscosity, and leads to weakly coupled correlated triplet pairs. These two triplet pairs could be spectrally distinguished and their contribution to the overall SF efficiency, i.e., to the population of free triplets, could be determined. Our results reveal how the overall SF efficiency can be increased by conformational restrictions and control of the structural fluctuation dynamics.
Collapse
Affiliation(s)
- Alexander Aster
- Department of Physical Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Francesco Zinna
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Christopher Rumble
- Department of Physical Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Eric Vauthey
- Department of Physical Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| |
Collapse
|
9
|
Affiliation(s)
- Radim Hrdina
- Institute of Organic Chemistry Justus-Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
| |
Collapse
|
10
|
Petzold M, Günther A, Jones PG, Werz DB. Regio- and Diastereoselective Dimerization of Diazo Carbonyls: A Cooperative Catalytic Approach to Complex Scaffolds with Four Contiguous Stereocenters. Chemistry 2020; 26:11119-11123. [PMID: 32237096 PMCID: PMC7497023 DOI: 10.1002/chem.202001548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Indexed: 12/20/2022]
Abstract
Starting from readily available o-diazoacyl-substituted arene carboxylates, scaffolds with the 5,9-epoxycyclohepta[b]pyran-2(3H)-one core were obtained by cooperative RhII , Lewis and Brønsted acid catalysis. Four new bonds, three functional groups (lactone, ketal, and alcohol) and four contiguous stereocenters are formed during this regio- and diastereoselective process in a single synthetic step. Intensive optimization and mechanistic studies, including the trapping, isolation, and elucidation of reaction intermediates, led to a plausible mechanistic scenario. The reaction is proposed to involve carbonyl ylides but also transient species of the ketocarbene equilibrium that undergo a cascade of cycloaddition and skeletal rearrangements.
Collapse
Affiliation(s)
- Martin Petzold
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Andre Günther
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Peter G. Jones
- Technische Universität BraunschweigInstitute of Inorganic and Analytical ChemistryHagenring 3038106BraunschweigGermany
| | - Daniel B. Werz
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| |
Collapse
|
11
|
Cheng R, Xiong W, Qi C, Wang L, Ren Y, Jiang H. Macrocyclization of 3-triflyloxybenzynes with tetrahydrofuran via an anionic thia-Fries rearrangement. Chem Commun (Camb) 2020; 56:6495-6498. [PMID: 32409790 DOI: 10.1039/d0cc00135j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A novel and uncommon macrocyclization reaction between 3-triflyloxybenzynes and tetrahydrofuran has been developed for the first time, providing a direct method for the synthesis of a range of functionalized 19-membered polyether macrocycles in moderate to good yields. The process was proposed to proceed through an anionic thia-Fris rearrangement under transition metal-free conditions, leading to the formation of four new C-O bonds and one new C-S bond in a single step.
Collapse
Affiliation(s)
- Ruixiang Cheng
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China.
| | - Wenfang Xiong
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China.
| | - Chaorong Qi
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China. and State Key Lab of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China
| | - Lu Wang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China.
| | - Yanwei Ren
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China.
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China.
| |
Collapse
|
12
|
Homberg A, Lacour J. From reactive carbenes to chiral polyether macrocycles in two steps - synthesis and applications made easy? Chem Sci 2020; 11:6362-6369. [PMID: 34094103 PMCID: PMC8152409 DOI: 10.1039/d0sc01011a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/11/2020] [Indexed: 12/26/2022] Open
Abstract
Chiral polyether macrocycles are versatile molecules. For their preparation, original two-step procedures were recently developed and present the advantages of high concentration conditions and simple starting reagents (stable diazo reagents, small cyclic ethers, aliphatic or aromatic amines). Enantiopure materials are readily afforded by CSP-HPLC on a semi-preparative scale. Flexibility and adaptability in the macrocyclic design are provided by a large selection of amines to choose from while the ring size and chemical nature are controlled by the choice of 5 to 7-membered cyclic ether precursors. Such macrocycles have already been used as asymmetric catalysts, mono and ditopic receptors, fluorescent sensors and probes, and chiroptical reversible switches.
Collapse
Affiliation(s)
- Alexandre Homberg
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| |
Collapse
|
13
|
Brun E, Zhang KF, Guénée L, Lacour J. Photo-induced thiol-ene reactions for late-stage functionalization of unsaturated polyether macrocycles: regio and diastereoselective access to macrocyclic dithiol derivatives. Org Biomol Chem 2020; 18:250-254. [PMID: 31808765 DOI: 10.1039/c9ob02375e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Double hydrothiolation of bis enol ether macrocycles was achieved under photo-mediated conditions. The thiol-ene reactions afford a fully regioselective anti-Markovnikov post-functionalization. Thanks to the use of ethanedithiol as reagent, moderate to excellent diastereoselectivity was accomplished leading to macrocycles containing four defined stereocenters in only three steps from 1,4-dioxane, tetrahydrofuran (THF) or tetrahydropyran (THP).
Collapse
Affiliation(s)
- Elodie Brun
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
| | | | | | | |
Collapse
|
14
|
Jérôme Lacour. Angew Chem Int Ed Engl 2020; 59:2940. [DOI: 10.1002/anie.201907783] [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]
|
15
|
Jérôme Lacour. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201907783] [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]
|
16
|
Homberg A, Hrdina R, Vishe M, Guénée L, Lacour J. Stereoselective deconjugation of macrocyclic α,β-unsaturated esters by sequential amidation and olefin transposition: application to enantioselective phase-transfer catalysis. Org Biomol Chem 2019; 17:6905-6910. [PMID: 31270519 DOI: 10.1039/c9ob01355e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The stereoselective synthesis of chiral macrocycles bearing two aliphatic amide functional groups is reported. After the amidation mediated by TBD, a guanidine derivative, the olefin transposition step is performed with a slight excess of t-BuOK. The products are afforded in moderate to good combined yields (up to 59%) and with an excellent syn diastereoselectivity (dr > 49 : 1). Introducing enantiopure α-branched substituents was possible and it resulted in mixtures of diastereomers, which could be tested as phase-transfer catalysts using the formation of a phenylalanine analog as a test reaction (up to 43% ee). A clear matched-mismatched situation was observed in the two diastereomeric series.
Collapse
Affiliation(s)
- Alexandre Homberg
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
| | - Radim Hrdina
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
| | - Mahesh Vishe
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
| | - Laure Guénée
- Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 24, 1211 Geneva 4, Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
| |
Collapse
|
17
|
Guranova NI, Dar'in D, Kantin G, Novikov AS, Bakulina O, Krasavin M. Fused vs. spiro: Kinetic, not thermodynamic preference may direct the reaction of α-carbonyl oxonium ylides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
18
|
Zinna F, Voci S, Arrico L, Brun E, Homberg A, Bouffier L, Funaioli T, Lacour J, Sojic N, Di Bari L. Circularly‐Polarized Electrochemiluminescence from a Chiral Bispyrene Organic Macrocycle. Angew Chem Int Ed Engl 2019; 58:6952-6956. [DOI: 10.1002/anie.201901303] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/07/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Francesco Zinna
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Silvia Voci
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Elodie Brun
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Alexandre Homberg
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Laurent Bouffier
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Tiziana Funaioli
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Jérôme Lacour
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Neso Sojic
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
19
|
Abstract
Cation and anion recognition have both played central roles in the development of supramolecular chemistry. Much of the associated research has focused on the development of receptors for individual cations or anions, as well as their applications in different areas. Rarely is complexation of the counterions considered. In contrast, ion pair recognition chemistry, emerging from cation and anion coordination chemistry, is a specific research field where co-complexation of both anions and cations, so-called ion pairs, is the center of focus. Systems used for the purpose, known as ion pair receptors, are typically di- or polytopic hosts that contain recognition sites for both cations and anions and which permit the concurrent binding of multiple ions. The field of ion pair recognition has blossomed during the past decades. Several smaller reviews on the topic were published roughly 5 years ago. They provided a summary of synthetic progress and detailed the various limiting ion recognition modes displayed by both acyclic and macrocyclic ion pair receptors known at the time. The present review is designed to provide a comprehensive and up-to-date overview of the chemistry of macrocycle-based ion pair receptors. We specifically focus on the relationship between structure and ion pair recognition, as well as applications of ion pair receptors in sensor development, cation and anion extraction, ion transport, and logic gate construction.
Collapse
Affiliation(s)
- Qing He
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States.,State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Gabriela I Vargas-Zúñiga
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Seung Hyun Kim
- Department of Chemistry and Research Institute of Natural Science , Gyeongsang National University , Jinju , 660-701 , Korea
| | - Sung Kuk Kim
- Department of Chemistry and Research Institute of Natural Science , Gyeongsang National University , Jinju , 660-701 , Korea
| | - Jonathan L Sessler
- Institute for Supramolecular Chemistry and Catalysis , Shanghai University , Shanghai 200444 , P.R. China.,Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| |
Collapse
|
20
|
Zinna F, Voci S, Arrico L, Brun E, Homberg A, Bouffier L, Funaioli T, Lacour J, Sojic N, Di Bari L. Circularly‐Polarized Electrochemiluminescence from a Chiral Bispyrene Organic Macrocycle. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901303] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Francesco Zinna
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Silvia Voci
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Elodie Brun
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Alexandre Homberg
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Laurent Bouffier
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Tiziana Funaioli
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Jérôme Lacour
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Neso Sojic
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
21
|
Guranova NI, Dar’in D, Kantin G, Novikov AS, Bakulina O, Krasavin M. Rh(II)-Catalyzed Spirocyclization of α-Diazo Homophthalimides with Cyclic Ethers. J Org Chem 2019; 84:4534-4542. [DOI: 10.1021/acs.joc.9b00245] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Natalia I. Guranova
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Dmitry Dar’in
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Grigory Kantin
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | | | - Olga Bakulina
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Mikhail Krasavin
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| |
Collapse
|
22
|
Homberg A, Poggiali D, Vishe M, Besnard C, Guénée L, Lacour J. One-Step Synthesis of Diaza Macrocycles by Rh(II)-Catalyzed [3 + 6 + 3 + 6] Condensations of Morpholines and α-Diazo-β-ketoesters. Org Lett 2019; 21:687-691. [DOI: 10.1021/acs.orglett.8b03875] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Alexandre Homberg
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland
| | - Daniele Poggiali
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland
| | - Mahesh Vishe
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 24, 1211 Geneva 4, Switzerland
| | - Laure Guénée
- Laboratory of Crystallography, University of Geneva, Quai Ernest Ansermet 24, 1211 Geneva 4, Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland
| |
Collapse
|
23
|
Lu L, Chen C, Jiang H, Yin B. Three-Component Ring-Opening Reactions of Cyclic Ethers, α-Diazo Esters, and Weak Nucleophiles under Metal-Free Conditions. J Org Chem 2018; 83:14385-14395. [PMID: 30403140 DOI: 10.1021/acs.joc.8b02091] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Lin Lu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Chuwei Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| |
Collapse
|
24
|
Homberg A, Brun E, Zinna F, Pascal S, Górecki M, Monnier L, Besnard C, Pescitelli G, Di Bari L, Lacour J. Combined reversible switching of ECD and quenching of CPL with chiral fluorescent macrocycles. Chem Sci 2018; 9:7043-7052. [PMID: 30310624 PMCID: PMC6137439 DOI: 10.1039/c8sc02935k] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/30/2018] [Indexed: 11/21/2022] Open
Abstract
A series of chiral fluorescent macrocycles display a remarkable combination of both +/– ECD and strong on/off CPL reversible switching upon cation binding and displacement.
Straightforward synthesis and resolution of a series of chiral fluorescent macrocycles are presented, together with their electronic circular dichroism (ECD), strong excimer fluorescence (EF, λ 300 to 650 nm) and allied highly circularly polarized luminescence (CPL, glum up to 1.7 × 10–2). The ECD, EF and CPL responses are strongly affected by the presence of metal ions (Na+, Ba2+) thanks to deep conformational changes. While ECD signals can be almost completely reversibly inverted upon the complexation/decomplexation of metal ions in a typical binary response, CPL signals are reversibly quenched concomitantly. The designed macrocycles display thus a remarkable combination of both +/– ECD and on/off CPL reversible switching.
Collapse
Affiliation(s)
- Alexandre Homberg
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Elodie Brun
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Francesco Zinna
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Simon Pascal
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Marcin Górecki
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Luc Monnier
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Céline Besnard
- Laboratoire de Cristallographie , University of Geneva , Quai Ernest Ansermet 24 , 1211 Geneva 4 , Switzerland
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Jérôme Lacour
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| |
Collapse
|
25
|
Ray SK, Homberg A, Vishe M, Besnard C, Lacour J. Efficient Synthesis of Ditopic Polyamide Receptors for Cooperative Ion Pair Recognition in Solution and Solid States. Chemistry 2018; 24:2944-2951. [DOI: 10.1002/chem.201704895] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Sumit Kumar Ray
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Alexandre Homberg
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Mahesh Vishe
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Céline Besnard
- Laboratory of Crystallography; University of Geneva; Quai Ernest Ansermet 24 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| |
Collapse
|
26
|
Vishe M, Lathion T, Pascal S, Yushchenko O, Homberg A, Brun E, Vauthey E, Piguet C, Lacour J. Excimer-Based On-Off Bis(pyreneamide) Macrocyclic Chemosensors. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700265] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mahesh Vishe
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| | - Timothée Lathion
- Department of Inorganic and Analytical Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| | - Simon Pascal
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| | - Oleksandr Yushchenko
- Department of Physical Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| | - Alexandre Homberg
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| | - Elodie Brun
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| | - Eric Vauthey
- Department of Physical Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| | - Claude Piguet
- Department of Inorganic and Analytical Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva Switzerland
| |
Collapse
|
27
|
Chen ZS, Huang XY, Chen LH, Gao JM, Ji K. Rh(II)/Pd(0) Dual Catalysis: Regiodivergent Transformations of Alkylic Oxonium Ylides. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02909] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zi-Sheng Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| | - Xiao-Yan Huang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| | - Ling-Hang Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| | - Kegong Ji
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| |
Collapse
|
28
|
Lübcke M, Yuan W, Szabó KJ. Trifluoromethylthiolation-Based Bifunctionalization of Diazocarbonyl Compounds by Rhodium Catalysis. Org Lett 2017; 19:4548-4551. [DOI: 10.1021/acs.orglett.7b02139] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Marvin Lübcke
- Department of Organic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
- Stockholm Brain Institute, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Weiming Yuan
- Department of Organic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department of Organic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
- Stockholm Brain Institute, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| |
Collapse
|
29
|
Guarnieri-Ibáñez A, Medina F, Besnard C, Kidd SL, Spring DR, Lacour J. Diversity-oriented synthesis of heterocycles and macrocycles by controlled reactions of oxetanes with α-iminocarbenes. Chem Sci 2017; 8:5713-5720. [PMID: 28989611 PMCID: PMC5621157 DOI: 10.1039/c7sc00964j] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/05/2017] [Indexed: 12/30/2022] Open
Abstract
Using N-sulfonyl triazoles as substrates, compounds as diverse as 2-imino tetrahydrofurans, 13- and 15-membered ring aza-macrocycles can be prepared selectively via formal [1 + 4], [5 + 4 + 4] and [3 + 4 + 4 + 4] condensations of α-imino carbenes and oxetanes under Rh(ii)-catalysis or thermal activation. Spirocyclic N-heterocycles are also accessible by means of Buchwald-Hartwig and Pictet-Spengler cyclizations. By reaction control, substrate selection or further derivatization, a large variety of chemical structures is thus achievable. Finally, using triazoles reacting under thermal activation, interesting mechanistic insight was obtained.
Collapse
Affiliation(s)
- Alejandro Guarnieri-Ibáñez
- Department of Organic Chemistry , University of Geneva , quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - Florian Medina
- Department of Organic Chemistry , University of Geneva , quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - Céline Besnard
- Laboratory of Crystallography , University of Geneva , quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - Sarah L Kidd
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , CB2 1EW , UK
| | - David R Spring
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , CB2 1EW , UK
| | - Jérôme Lacour
- Department of Organic Chemistry , University of Geneva , quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| |
Collapse
|
30
|
Goudedranche S, Besnard C, Egger L, Lacour J. Synthesis of Pyrrolidines and Pyrrolizidines with α-Pseudoquaternary Centers by Copper-Catalyzed Condensation of α-Diazodicarbonyl Compounds and Aryl γ-Lactams. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607574] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sébastien Goudedranche
- Département de Chimie Organique; Université de Genève; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Céline Besnard
- Laboratoire de Cristallographie; Université de Genève; quai Ernest Ansermet 24 1211 Geneva 4 Switzerland
| | - Léo Egger
- Département de Chimie Organique; Université de Genève; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Département de Chimie Organique; Université de Genève; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| |
Collapse
|
31
|
Goudedranche S, Besnard C, Egger L, Lacour J. Synthesis of Pyrrolidines and Pyrrolizidines with α-Pseudoquaternary Centers by Copper-Catalyzed Condensation of α-Diazodicarbonyl Compounds and Aryl γ-Lactams. Angew Chem Int Ed Engl 2016; 55:13775-13779. [DOI: 10.1002/anie.201607574] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Sébastien Goudedranche
- Département de Chimie Organique; Université de Genève; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Céline Besnard
- Laboratoire de Cristallographie; Université de Genève; quai Ernest Ansermet 24 1211 Geneva 4 Switzerland
| | - Léo Egger
- Département de Chimie Organique; Université de Genève; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Département de Chimie Organique; Université de Genève; quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| |
Collapse
|
32
|
Yuan W, Szabó KJ. Rhodium-Catalyzed Oxy-Aminofluorination of Diazoketones with Tetrahydrofurans and N-Fluorobenzenesulfonimide. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01760] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weiming Yuan
- Department
of Organic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Kálmán J. Szabó
- Department
of Organic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| |
Collapse
|
33
|
Poggiali D, Homberg A, Lathion T, Piguet C, Lacour J. Kinetics of Rh(II)-Catalyzed α-Diazo-β-ketoester Decomposition and Application to the [3+6+3+6] Synthesis of Macrocycles on a Large Scale and at Low Catalyst Loadings. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01283] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniele Poggiali
- Department of Organic Chemistry and ‡Department of Inorganic
and Analytical Chemistry, University of Geneva, 30 Quai Ernest
Ansermet, CH-1211 Geneva 4, Switzerland
| | - Alexandre Homberg
- Department of Organic Chemistry and ‡Department of Inorganic
and Analytical Chemistry, University of Geneva, 30 Quai Ernest
Ansermet, CH-1211 Geneva 4, Switzerland
| | - Timothée Lathion
- Department of Organic Chemistry and ‡Department of Inorganic
and Analytical Chemistry, University of Geneva, 30 Quai Ernest
Ansermet, CH-1211 Geneva 4, Switzerland
| | - Claude Piguet
- Department of Organic Chemistry and ‡Department of Inorganic
and Analytical Chemistry, University of Geneva, 30 Quai Ernest
Ansermet, CH-1211 Geneva 4, Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry and ‡Department of Inorganic
and Analytical Chemistry, University of Geneva, 30 Quai Ernest
Ansermet, CH-1211 Geneva 4, Switzerland
| |
Collapse
|
34
|
Sinn S, Biedermann F, Vishe M, Aliprandi A, Besnard C, Lacour J, De Cola L. A Ratiometric Luminescent Switch Based on Platinum Complexes Tethered to a Crown-Ether Scaffold. Chemphyschem 2016; 17:1829-34. [DOI: 10.1002/cphc.201501171] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/14/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Stephan Sinn
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg & CNRS; 8 Rue Gaspard Monge 67083 Strasbourg France
| | - Frank Biedermann
- Institute for Nanotechnology (INT); Karlsruhe Institut für Technologie; Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Mahesh Vishe
- Organic Chemistry Department; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Alessandro Aliprandi
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg & CNRS; 8 Rue Gaspard Monge 67083 Strasbourg France
| | - Céline Besnard
- Laboratory of Crystallography; University of Geneva; Quai Ernest Ansermet 24 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Organic Chemistry Department; University of Geneva; Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Luisa De Cola
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS); Université de Strasbourg & CNRS; 8 Rue Gaspard Monge 67083 Strasbourg France
- Institute for Nanotechnology (INT); Karlsruhe Institut für Technologie; Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| |
Collapse
|
35
|
Zhang M, Yang Y, Liu L, Chang W, Li J. Pseudo-Cryptand-Containing Copolymers: Cyclopolymerization and Biocompatible Water-Soluble Al3+ Fluorescent Sensor in Vitro. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02340] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | | | | | | | - Jing Li
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| |
Collapse
|
36
|
Jarolímová Z, Vishe M, Lacour J, Bakker E. Potassium ion-selective fluorescent and pH independent nanosensors based on functionalized polyether macrocycles. Chem Sci 2016; 7:525-533. [PMID: 29896344 PMCID: PMC5952882 DOI: 10.1039/c5sc03301b] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 10/07/2015] [Indexed: 12/30/2022] Open
Abstract
We present here a new family of pH insensitive ion-selective optical sensors based on emulsified nanospheres containing densely functionalized 15-, 16-, 18- and 20-membered pyreneamide derivatives. These compounds were successfully synthesized by the reaction of α-diazo-β-ketoesters with cyclic ethers of the desired size in the presence of dirhodium complexes followed by a stereo-selective tandem amidation-transposition process and characterized by 1H-NMR, 13C-NMR, IR, HR-ESI-MS, UV-VIS and fluorescence spectroscopy and potentiometry. Their unique structure consisting of a crown ether ring linked to pyrene moieties through amide groups exhibits on-off switchable behavior upon binding of specific cations and allows one to incorporate these chemosensors as fluorescent ionophores into ion-exchange nanospheres. The nanosphere matrix is composed of bis(2-ethylhexyl)sebacate (DOS), poly(ethylene glycol) (PEG), sodium tetrakis 3,5-bis(trifluoromethyl)phenyl borate and pyreneamide functionalized 18-crown-6 ether (18C6). These optode nanoparticles exhibit a strong affinity to the potassium cation over other metal ions up to the millimolar concentration range in an exhaustive detection mode. The logarithmic complex formation constant was determined using the segmented sandwich membrane method and was found to be 6.5 ± 0.3 (SD) in PVC membrane plasticized with NPOE and 5.3 ± 0.3 (SD) in DOS with a 1 : 1 complex stoichiometry. The nanosensors were characterized in broad range of pH from 4 to 10 and the same linear calibration curves were obtained in the concentration range from 10-7 M to 10-5 M and thus the pH dependent response was largely overcome. These nanosensors are sufficiently stable, simple to prepare, exhibit a rapid response and their nanoscale size makes them suitable for sensing purposes in samples of limited dimensions.
Collapse
Affiliation(s)
- Zdeňka Jarolímová
- Department of Inorganic and Analytical Chemistry , University of Geneva , Quai Ernest-Ansermet 30 , CH-1211 Geneva , Switzerland .
| | - Mahesh Vishe
- Department of Organic Chemistry , University of Geneva , Quai Ernest-Ansermet 30 , CH-1211 Geneva , Switzerland .
| | - Jérôme Lacour
- Department of Organic Chemistry , University of Geneva , Quai Ernest-Ansermet 30 , CH-1211 Geneva , Switzerland .
| | - Eric Bakker
- Department of Inorganic and Analytical Chemistry , University of Geneva , Quai Ernest-Ansermet 30 , CH-1211 Geneva , Switzerland .
| |
Collapse
|
37
|
Zhang M, Liu L, Chang W, Li J. Controllable and Reversible Dimple-Shaped Aggregates Induced by Macrocyclic Recognition Effect. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:13581-13589. [PMID: 26609556 DOI: 10.1021/acs.langmuir.5b03865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A novel dimethyl acrylate 18-membered macrocycle (DMECE), acting as both bifunctional monomer and cross-linker, was designed and synthesized, and thus employed to construct a series of macrocycle-containing amphiphilic hyperbranched polymers (HBPs). The macrocyclic recognition effect between the HBPs and alkali metal ions showed that Na(+) was introduced in 1:1 interactive mode, whereas K(+) and Rb(+) were in 2:1 ratio. Through the formation of the DMECE/K(+) = 2:1 rigid "sandwich" complex of amphiphilic hyperbranched polymers, dimple-shaped aggregates were observed by TEM, SEM and AFM. Moreover, the initial concentration, the nature of solvent, the mode and affinity of the macrocyclic recognition effect as well as the amount of K(+), were essential control factors for the formation of dimple-shaped aggregates. Most importantly, the macrocyclic recognition effect endows the reversibility of the dimple-shaped aggregates and the size controllability of its circular opening, which provides a new strategy for design novel macrocycle-containing HBPs and great potential application in the field of capture and release.
Collapse
Affiliation(s)
- Ming Zhang
- The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Weijin Road 94#, Nankai District, Tianjin, P. R. China
| | - Lingyan Liu
- The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Weijin Road 94#, Nankai District, Tianjin, P. R. China
| | - Weixing Chang
- The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Weijin Road 94#, Nankai District, Tianjin, P. R. China
| | - Jing Li
- The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Weijin Road 94#, Nankai District, Tianjin, P. R. China
| |
Collapse
|
38
|
Pospech J, Ferraccioli R, LaBerge N, Neumann H, Beller M. Rhodium(II)-Catalyzed Annulation of Azavinyl Carbenes Through Ring-Expansion of 1,3,5-Trioxane: Rapid Access to Nine-Membered 1,3,5,7-Trioxazonines. Chem Asian J 2015; 10:2624-30. [PMID: 26247492 DOI: 10.1002/asia.201500493] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Indexed: 11/10/2022]
Abstract
The rhodium(II)-catalyzed denitrogenative coupling of N-alkylsulfonyl 1,2,3-triazoles with 1,3,5-trioxane led to nine-membered-ringed trioxazonines in moderate-to-good yields. 1,3,5-Trioxane, acting as an oxygen nucleophile, reacted with the α-aza-vinylcarbene intermediate, giving rise to ylide formation, which was probably the key step in the reaction. Triazoles that contained aryl substituents with various electronic and steric features on the C4 carbon atom were well-tolerated. The synthesis of trioxazonine derivatives was achieved through a one-pot, two-step procedure from 1-mesylazide and a terminal alkyne by combining Cu(I)-catalyzed 1,3-dipolar cycloaddition and rhodium-catalyzed transformations.
Collapse
Affiliation(s)
- Jola Pospech
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Straße 29, 18059, Rostock, Germany
| | - Raffaella Ferraccioli
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Straße 29, 18059, Rostock, Germany.,CNR-Istituto di Scienze e Tecnologie Molecolari (ISTM), Via C. Golgi 19, 20133, Milano, Italy
| | | | - Helfried Neumann
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Straße 29, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Straße 29, 18059, Rostock, Germany.
| |
Collapse
|
39
|
Martí-Centelles V, Pandey MD, Burguete MI, Luis SV. Macrocyclization Reactions: The Importance of Conformational, Configurational, and Template-Induced Preorganization. Chem Rev 2015; 115:8736-834. [DOI: 10.1021/acs.chemrev.5b00056] [Citation(s) in RCA: 278] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
| | - Mrituanjay D. Pandey
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
| | - M. Isabel Burguete
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
| | - Santiago V. Luis
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
| |
Collapse
|
40
|
Vishe M, Hrdina R, Poblador-Bahamonde AI, Besnard C, Guénée L, Bürgi T, Lacour J. Remote stereoselective deconjugation of α,β-unsaturated esters by simple amidation reactions. Chem Sci 2015; 6:4923-4928. [PMID: 29142723 PMCID: PMC5664367 DOI: 10.1039/c5sc01118c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 05/21/2015] [Indexed: 12/15/2022] Open
Abstract
The thermodynamically disfavored isomerization of α,β-unsaturated esters to deconjugated β,γ-unsaturated analogues occurs readily when coupled to an amidation. Within the framework of macrocyclic derivatives, it is shown that 15, 16, and 18 membered macrocycles react with tBuOK and anilines to generate, in one-pot, β,γ-unsaturated amides (yields up to 88%). Importantly, single (chiral) diastereomers are isolated (d.r. > 49 : 1, 1H NMR) irrespective of the size and nature of the rings, showing an effective transmission of remote stereochemistry during the isomerization process. CSP-chromatographic resolution and absolute configuration determination by VCD are achieved.
Collapse
Affiliation(s)
- Mahesh Vishe
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland . ; http://www.unige.ch/sciences/chiorg/lacour/
| | - Radim Hrdina
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland . ; http://www.unige.ch/sciences/chiorg/lacour/
| | - Amalia I Poblador-Bahamonde
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland . ; http://www.unige.ch/sciences/chiorg/lacour/
| | - Céline Besnard
- Laboratory of Crystallography , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - Laure Guénée
- Laboratory of Crystallography , University of Geneva , Quai Ernest Ansermet 24 , CH-1211 Geneva 4 , Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , CH-1211 Geneva 4 , Switzerland . ; http://www.unige.ch/sciences/chiorg/lacour/
| |
Collapse
|
41
|
Medina F, Besnard C, Lacour J. One-step synthesis of nitrogen-containing medium-sized rings via α-imino diazo intermediates. Org Lett 2014; 16:3232-5. [PMID: 24885761 DOI: 10.1021/ol5012532] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Eight- and 9-membered dioxazocines and dioxazonines are readily synthesized starting from N-sulfonyl-1,2,3-triazoles in a single-step procedure. A perfect regioselectivity and generally good yields (up to 92%) are obtained under dirhodium catalysis using 1,3-dioxolane and 1,3-dioxane as solvents and reagents.
Collapse
Affiliation(s)
- Florian Medina
- Department of Organic Chemistry, University of Geneva , 30 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | | | | |
Collapse
|
42
|
Kitamura M, Kisanuki M, Kanemura K, Okauchi T. Pd(OAc)2-Catalyzed Macrocyclization of 1,2-Diazonaphthoquinones with Cyclic Ethers. Org Lett 2014; 16:1554-7. [DOI: 10.1021/ol500222s] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Mitsuru Kitamura
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu, 804-8550 Japan
| | - Masato Kisanuki
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu, 804-8550 Japan
| | - Koichi Kanemura
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu, 804-8550 Japan
| | - Tatsuo Okauchi
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu, 804-8550 Japan
| |
Collapse
|
43
|
Muthusamy S, Karikalan T. Rhodium(ii) catalyzed synthesis of macrocycles incorporating oxindole via O–H/N–H insertion reactions. Org Biomol Chem 2014; 12:9243-56. [DOI: 10.1039/c4ob01671h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of 10- to 29-membered oxaza-macrocyclesviaintramolecular O–H/N–H insertion reactions catalyzed by a rhodium(ii) acetate dimer is demonstrated. Synthesis of symmetric macrocyclesviahead to tail dimerization reactions is also delineated.
Collapse
|
44
|
Vishe M, Hrdina R, Guénée L, Besnard C, Lacour J. One-Pot Multi-Component Synthesis and Solid State Structures of Functionally Rich Polyether Macrocycles. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300462] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
45
|
Xia L, Lee YR. Efficient One-Pot Synthesis of Multi-Substituted Dihydrofurans by Ruthenium(II)-Catalyzed [3+2] Cycloaddition of Cyclic or Acyclic Diazodicarbonyl Compounds with Olefins. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300245] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
46
|
Tortoreto C, Achard T, Zeghida W, Austeri M, Guénée L, Lacour J. Enol Acetal Synthesis through Carbenoid CH Insertion into Tetrahydrofuran Catalyzed by CpRu Complexes. Angew Chem Int Ed Engl 2012; 51:5847-51. [DOI: 10.1002/anie.201201541] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Indexed: 11/09/2022]
|
47
|
Tortoreto C, Achard T, Zeghida W, Austeri M, Guénée L, Lacour J. Enol Acetal Synthesis through Carbenoid CH Insertion into Tetrahydrofuran Catalyzed by CpRu Complexes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201541] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
48
|
Ballesteros-Garrido R, Rix D, Besnard C, Lacour J. Medium-Sized Rings versus Macrocycles through Rhodium-Catalyzed Ring-Expansion Reactions of Cyclic Acetals. Chemistry 2012; 18:6626-31. [DOI: 10.1002/chem.201103870] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Indexed: 11/08/2022]
|
49
|
Rix D, Ballesteros-Garrido R, Zeghida W, Besnard C, Lacour J. Macrocyclization of Oxetane Building Blocks with Diazocarbonyl Derivatives under Rhodium(II) Catalysis. Angew Chem Int Ed Engl 2011; 50:7308-11. [DOI: 10.1002/anie.201102152] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 05/18/2011] [Indexed: 11/09/2022]
|
50
|
Macrocyclization of Oxetane Building Blocks with Diazocarbonyl Derivatives under Rhodium(II) Catalysis. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102152] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|