: B 2333 (OTTO) [Bis(trifluoroacetoxy)iodo]benzene, 97% Cas 2712-78-9 - used for the direct α-hydroxylation of ketones under acidic conditions.Also employed as a p-fluorination reagent of 4-alkylphenols in the presence of HF·pyridine (cat. no. 184225) for synthesis of 4-fluorocyclohexa-2,5-dienones.