[Preparation]
Preparation by Fries rearrangement of m-chlorophenyl benzoate,
? with aluminium chloride, without solvent, at 140° for 1 h (54%), at 150° for 2 h (58%)], at 175° for 15 min (80%) or at 200° for 20 min;
? with titanium tetrachloride for 15 min at 175° (67%). |