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Palladium- and copper-catalyzed amination in the synthesis of polymacrocyclic compounds containing structural fragments of azacrown ethers, porphyrins and calix[4]arenes

Abstract : Polymacrocyclic compounds are of great interest due to their unique coordination properties. The first convenient synthetic approach to various polycyclic compounds containing several azacrown-ether moieties, to cryptands and supercryptands, based on azacrown-ethers, has been developed by Krakowiak and coworkers in the beginning of 1990s using simple nucleophilic substitution reactions. At present time heteropolytopic polymacrocyclic compounds, capable of forming polynuclear complexes with various metals, attract the utmost interest. In the majority of publications dealing with the synthesis of polymacrocyclic compounds non-catalytic approaches were applied, except for several porphyrin dyads and triads, which were obtained using Suzuki, Sonogashira and Heck reactions. The laboratory of organoelement compounds of Chemistry Department of Lomonosov Moscow State University has a great experience of the application of Pd-catalyzed amination reactions for the synthesis of polymacrocyclic compounds, nowadays Cu-catalyzed arylation of di- and polyamines is under investigation. Bearing it in mind we have found the research for Cu-catalyzed amination to be important in synthesis of polymacrocyclic compounds containing di- and polyamine linkers; as well as the synthesis of new types of polytopic polymacrocyclic conjugates, bearing azacrown-ether, porphyrin and calixarene moieties, by means of Pd- and Cu-catalyzed reactions; and studying their properties as metal cations detectors.The aim of the research is to develop catalytic synthetic approaches to polymacrocyclic conjugates, bearing azacrown-ether, porphyrin and calix[4]arene moieties, and to study their abilities as detectors for metal cations. For this purpose it is necessary to carry out the following investigations: 1) to study the regularities of Cu(I)-catalyzed amination of halogen derivatives of azacrown-ethers and porphyrins and to synthesize corresponding amino derivatives; 2) to develop the methods for the catalytic macrocyclization aimed at the synthesis of macrobicyclic and macrotricyclic compounds, containing diazacrown-ether, cyclen, cyclam and calix[4]arene moieties; 3) to introduce fluorophoric fragments (including porphyrins) into macrocyclic and macrobicyclic compounds; 4) to investigate metal cations binding by thus synthesized polymacrocycles using UV and fluorescent spectroscopy, and to find possible fluorescent and colorimetric detectors among them.
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Aleksei A. Iakushev. Palladium- and copper-catalyzed amination in the synthesis of polymacrocyclic compounds containing structural fragments of azacrown ethers, porphyrins and calix[4]arenes. Other. Université Montpellier; Institut Frumkin de Chimie Physique et d'Electrochimie (Moscou), 2016. Russian. ⟨NNT : 2016MONTT221⟩. ⟨tel-01762653⟩

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