Preparation by hydrogenation of 2-allyl-3-amino- 4,6-di-acetylphenol (SM) in ethanol in the presence of 5% Pd/C at atmospheric pressure and at r.t. (82%). SM was obtained by Claisen rearrangement of 3-(allyloxy)-4,6-diacetylaniline (m.p. 131–134°) in N-methylpyrrolidone under nitrogen at 200° for 3 h.