ISSN:
1572-8838
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract 4-Ethoxytoluenes bearing substituents in the β-position such as a hydroxy group, a halogen atom, or an ester group were anodically oxidized to give the corresponding benzaldehydes or their derivatives (dimethyl acetals, hydrogen sulphite addition products). The electrochemical oxidation of 4-alkyloxytoluenes in alcoholic solutions in the presence of alkanediols led to cyclic acetals, e.g. 1,3-dioxolanes and 1,3-dioxanes. Various 2,5-disubstituted 1,3-dioxanes were thus prepared, the trans isomers exhibiting liquid-crystalline properties. The ratio of cis and trans isomers formed during the electrolysis was found to be in correspondence with the thermodynamic equilibrium.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01042458
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