1
|
Barlow SR, Tomkinson D, Halcovitch NR, Evans NH. Rapid synthesis of hydrogen bond templated handcuff rotaxanes. Org Biomol Chem 2024. [PMID: 38873753 DOI: 10.1039/d4ob00672k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
The rapid synthesis of hydrogen bond templated handcuff rotaxanes is described. The isolated rotaxanes were characterized by NMR and IR spectroscopies and high resolution mass spectrometry. This report represents a rare demonstration of preparing (2)handcuff [2]rotaxanes by covalently linking separate axles threaded through the rings of a bis-macrocycle by use of the copper catalyzed azide-alkyne cycloaddition (CuAAC) reaction.
Collapse
Affiliation(s)
- Sean R Barlow
- Department of Chemistry, Lancaster University, Lancaster, LA1 4YB, UK.
| | - David Tomkinson
- Department of Chemistry, Lancaster University, Lancaster, LA1 4YB, UK.
| | | | - Nicholas H Evans
- Department of Chemistry, Lancaster University, Lancaster, LA1 4YB, UK.
| |
Collapse
|
2
|
Iuliano V, Ciao R, Vignola E, Talotta C, Iannece P, De Rosa M, Soriente A, Gaeta C, Neri P. Multiple threading of a triple-calix[6]arene host. Beilstein J Org Chem 2019; 15:2092-2104. [PMID: 31579081 PMCID: PMC6753684 DOI: 10.3762/bjoc.15.207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/16/2019] [Indexed: 01/05/2023] Open
Abstract
The synthesis of the triple-calix[6]arene derivative 6 in which three calix[6]arene macrocycles are linked to a central 1,3,5-trimethylbenzene moiety is reported. Derivative 6 is able to give multiple-threading processes in the presence of dialkylammonium axles. The formation of pseudo[2]rotaxane, pseudo[3]rotaxane, and pseudo[4]rotaxane by threading one, two, and three, respectively, calix-wheels of 6 has been studied by 1D and 2D NMR, DOSY, and ESI-FT-ICR MS/MS experiments. The use of a directional alkylbenzylammonium axle led to the stereoselective formation of endo-alkyl pseudo[n]rotaxane stereoisomers.
Collapse
Affiliation(s)
- Veronica Iuliano
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| | - Roberta Ciao
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| | - Emanuele Vignola
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| | - Carmen Talotta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| | - Patrizia Iannece
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| | - Placido Neri
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia " A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy
| |
Collapse
|
3
|
Tranfić Bakić M, Iuliano V, Talotta C, Geremia S, Hickey N, Spinella A, De Rosa M, Soriente A, Gaeta C, Neri P. Threading of Conformationally Stable Calix[6]arene Wheels Substituted at the Methylene Bridges. J Org Chem 2019; 84:11922-11927. [PMID: 31418261 DOI: 10.1021/acs.joc.9b01779] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Calix[6]arenes disubstituted at the methylene bridges, which are stable in the cone or 1,2,3-alternate conformation, form pseudorotaxanes with dialkylammonium axles. The cone wheel-based pseudorotaxanes are 10-100 times more stable than those obtained with the native conformationally mobile calix[6]arene wheel, as a consequence of their higher degree of preorganization. The threading of conformationally stable 1,2,3-alternate calix[6]arenes is unprecedented in the literature. Therefore, very peculiar NMR features are here evidenced for this threading process involving the less symmetrical 1,2,3-alternate calix[6]arene conformation, which implies a peculiar rototranslation motion of the axle.
Collapse
Affiliation(s)
- Marina Tranfić Bakić
- Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology , University of Zagreb , Pierottijeva 6 , 10000 Zagreb , Croatia
| | - Veronica Iuliano
- Laboratory of Supramolecular Chemistry, Department of Chemistry and Biology "A. Zambelli" , University of Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano , Salerno , Italy
| | - Carmen Talotta
- Laboratory of Supramolecular Chemistry, Department of Chemistry and Biology "A. Zambelli" , University of Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano , Salerno , Italy
| | - Silvano Geremia
- Centro di Eccellenza in Biocristallografia Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , via L. Giorgieri 1 , I-34127 Trieste , Italy
| | - Neal Hickey
- Centro di Eccellenza in Biocristallografia Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , via L. Giorgieri 1 , I-34127 Trieste , Italy
| | - Aldo Spinella
- Laboratory of Supramolecular Chemistry, Department of Chemistry and Biology "A. Zambelli" , University of Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano , Salerno , Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular Chemistry, Department of Chemistry and Biology "A. Zambelli" , University of Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano , Salerno , Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular Chemistry, Department of Chemistry and Biology "A. Zambelli" , University of Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano , Salerno , Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular Chemistry, Department of Chemistry and Biology "A. Zambelli" , University of Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano , Salerno , Italy
| | - Placido Neri
- Laboratory of Supramolecular Chemistry, Department of Chemistry and Biology "A. Zambelli" , University of Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano , Salerno , Italy
| |
Collapse
|
4
|
La Manna P, Talotta C, Gaeta C, Soriente A, De Rosa M, Neri P. Threading of an Inherently Directional Calixarene Wheel with Oriented Ammonium Axles. J Org Chem 2017; 82:8973-8983. [PMID: 28799754 DOI: 10.1021/acs.joc.7b01388] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The threading of monostoppered alkylbenzylammonium axles 7+ and 8+ with the calix[6]-wheel 3 can occur by both routes of entering the macrocycle 3 in the cone conformation: passage through the upper rim and the through the lower rim. Thus, under thermodynamic conditions, with both the axles 7+ and 8+, the two possible orientations of calix[2]pseudorotaxane, namely, endo-benzyl and endo-alkyl, are formed by a stereoselectivity controlled by the endo-alkyl rule. Interestingly, by 1H NMR monitoring of the threading process between 8+ and 3, we revealed two calix[2]pseudorotaxane isomers in which the calix-wheel adopts 1,2,3-alternate and cone conformations, which represent the kinetic and thermodynamic species, respectively. Finally, the synthesis of ammonium-based oriented calix[2]rotaxane is here described.
Collapse
Affiliation(s)
- Pellegrino La Manna
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Margherita De Rosa
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| |
Collapse
|
5
|
Talotta C, Gaeta C, De Rosa M, Ascenso JR, Marcos PM, Neri P. Alkylammonium Guest Induced-Fit Recognition by a Flexible Dihomooxacalix[4]arene Derivative. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501319] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
6
|
Talotta C, Rubino L, Gaeta C, Capitelli F, Saviano M, Brancatelli G, Geremia S, Vasca E, Neri P. Synthesis and supramolecular features of hybrid POM/onium solid-state assemblies. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1108418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Carmen Talotta
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| | - Luca Rubino
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| | | | | | - Giovanna Brancatelli
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Trieste, Italy
| | - Silvano Geremia
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Trieste, Italy
| | - Ermanno Vasca
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| |
Collapse
|
7
|
Talotta C, De Simone NA, Gaeta C, Neri P. Calix[6]arene Threading with Weakly Interacting Tertiary Ammonium Axles: Generation of Chiral Pseudorotaxane Architectures. Org Lett 2015; 17:1006-9. [DOI: 10.1021/acs.orglett.5b00115] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carmen Talotta
- Dipartimento di Chimica e
Biologia, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Nicola Alessandro De Simone
- Dipartimento di Chimica e
Biologia, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e
Biologia, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Placido Neri
- Dipartimento di Chimica e
Biologia, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| |
Collapse
|