| abstract |
The invention relates to heterocyclic compounds, in particular to the preparation of H-alkylcrown esters of the form. Mula Yq oJ-CH CH CH, where p-O, 1,2,3; m - 2-8, which can be found as catalysts for extractants of metals. In order to simplify the process, the corresponding crown ether is reacted with alkene-1 of the formula CH - (eH) „., -. CH CH, where w is indicated above, in the presence of tert-butyl peroxide at a molar ratio of 1: 2-4: 0.1-0.3. The process is carried out for 90 minutes. The method allows to simplify the process by reducing the number of stages. 3 tab. |