L. S. German, V. R. Polishchuk, G. Y. Bekker
Oct 1, 1974
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Journal
Chemistry of Heterocyclic Compounds
Abstract
Abstract5-(Hydroxybenzyl)uracils are obtained by condensation of 5-hydroxymethyluracil (I) with phenols in the presence of CF3COOH [1]. However, the activity of CF3COOH is insufficient for aromatic compounds that do not contain electron-donor substituents. Thus, according to PMR data, the reaction between equivalent amounts of I and C6H6 in CF3COOH is complete only after 3 days. However, benzene derivatives containing electron-acceptor substituents are practically unreactive. Anhydrous HP, in which even benzotrifluoride reacts, is a considerably more efficient agent.