Chemistry of Heterocyclic Compounds p. 447 - 450 (1983)
Update date:2022-08-17
Topics:
Skulski, L.
Wroczynski, P.
Direct C-mercuration in the 8 position of N-acyl derivatives of theophylline and theobromine with mercury(II) trifluoroacetate in a mixture of anhydrous trifluoroacetic acid and trifluoroacetic anhydride is described. 8-Bromo and, respectively, 8-iodo derivatives of both dimethylxanthines were obtained in high yields from 8-trifluoroacetoxymercuri derivatives by the action of an aqueous solution of potassium tribromide or a solution of iodine in acetonitrile.
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