| 摘要 |
Electrochemical preparation of terephthalaldehyde tetraalkyl acetals I <IMAGE> in which R is C1-C6-alkyl, by the process of compounds (II) or their mixtures, which are formed, in addition to I and p-tolylaldehyde dialkyl acetal (III), during the electrochemical oxidation of p-xylene in the presence of a neutral supporting electrolyte or an acid in alkanolic solution, after I and, if required, part of the oxidation products II and III have largely been separated, being subjected to further electrochemical oxidation. |
