Synthesis of 21,23-Selenium- and Tellurium-Substituted 5-Porphomethenes, 5,10-Porphodimethenes, 5,15-Porphodimethenes, and Porphotrimethenes and Their Interactions with Mercury
| Autor: | Prashant Chauhan, Shive M. S. Chauhan, Soumee Bhattacharya, Kumar Karitkey Yadav, Sohail Ahmad |
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| Rok vydání: | 2015 |
| Předmět: |
Ethane
Magnetic Resonance Spectroscopy Molecular Structure Chemical structure Organic Chemistry chemistry.chemical_element Nuclear magnetic resonance spectroscopy Carbon-13 NMR Mass spectrometry Medicinal chemistry Mercury (element) Selenium Ultraviolet visible spectroscopy chemistry Alcohols Organic chemistry Calixarenes Tellurium Methane Oxidation-Reduction |
| Zdroj: | The Journal of Organic Chemistry. 80:3880-3890 |
| ISSN: | 1520-6904 0022-3263 |
| DOI: | 10.1021/acs.joc.5b00007 |
| Popis: | The 3+1 condensation of symmetrical 16-Selena/telluratripyrranes with symmetrical selenophene-2,5-diols/tellurophene-2,5-diols in the presence of BF3-etheratre or BF3-methanol followed by oxidation with DDQ gave 5,10-porphodimethenes, whereas the process with unsymmetrical selenophene-2,5-diols/tellurophene-2,5-diols gave 5-porphomethenes. In addition, the reaction of unsymmetrical 16-Selena/telluratripyrranes with symmetrical selenophene-2,5-diols/tellurophene-2,5-diols gave the corresponding porphotrimethenes, whereas the process with unsymmetrical selenophene-2,5-diols/tellurophene-2,5-diols gave the 5,15-porphodimethenes. The structures of different products were characterized by IR, (1)H and (13)C NMR, (1)H-(1)H COSY, CHN analysis, and mass spectrometry. The binding of mercury with the calix[4]phyrins mentioned above had been observed in the decreasing order of porphodimethenesporphomethenesporphotrimethenes by UV-vis and (1)H NMR spectroscopy. |
| Databáze: | OpenAIRE |
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