STUDIES IN FRIES MIGRATION. PART XIII. FRIES REARRANGEMENT OF ACYL ESTERS OF METHYL 2 : 6-DTHYDROXYBENZOATE (METHYL γ-RESORCYLATE) AND 3 : 5 (DIHYDROXY- BENZOIC ACID (α-RESORCYLIC ACID)

The Fries rearrangement of methyl ^.2 : 6-diacetoxy- as well as -dibenzoyloxy-benzoate yields methyl 2 : 6-dihydroxy-3-acetyl- and -3 benzoyl-benzoates and the corresponding keto-acids respectively, hydro­lysis occurring during the course of the migration. No diketone has been isolated. 3 : 5-Diacetoxy benzoic acid does not isomerise under the conditions of the Fries reaction.