1-(4-Hydroxy-3-methylphenyl)-1-propanone

Preparation

Preparation by Fries rearrangement of o-cresyl propionate with aluminium chloride,
in nitrobenzene at r.t., (75%)
in nitromethane at 20° for a week (58%)
first in gently refluxing carbon disulfide, then at 135–140° for 2 h after solvent elimination, (43%)
without solvent at 50° for 3 h (55%), at 120° for 3 h, at 130° (65%), or at 165° for 1 h (22%).