Direct preparation of ionic potassium—coal adducts |
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| Authors: | Lazarin Lazarov Ilija Rashkov Stephan Angelov |
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| Affiliation: | 1. Institute of Organic Chemistry, Bulgarian Academy of Sciences, Geo Milev district, Building No. 5, Sofia 1113, Bulgaria;2. Central Laboratory of Polymers, Bulgarian Academy of Sciences, Geo Milev district, Building No. 2, Sofia 1113, Bulgaria |
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| Abstract: | The possibility for a direct preparation of ionic potassium—coal adduct is shown, from finely ground low-volatile bituminous coal (89.2% C) and metallic potassium with stirring at 120 °C and a vacuum of 13 mPa. The treatment of the adduct dispersed in THF with CH3l results in reductive methylation of the coal, similar to that of the ‘coal anion’, obtained in THF during its interaction with potassium—naphthalene. |
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