Camphorsulfonic acid in warm fluorobenzene facilitates the ortho rearrangement of (alkoxy- substituted) benzyl ethers of 1-(O-methyl)-2-nitroresorcinols to the corresponding o-(alkoxy- substituted) arylmethylnitrophenols. The substrate phenolic ethers are prepared by ultrasound-promoted arylmethylation of the appropriate 1-alkoxy-substituted 2- nitroresorcinol.
