potassium hydroxide; dihydrogen peroxide 1.) ethanol, reflux, 1 h, 2.) water, reflux, 1 h; Yield given. Multistep reaction;

1: 1.) 5percent KOH, 2.) 33percent H2O2 / 1.) ethanol, reflux, 1 h, 2.) water, reflux, 1 h 2: 0.51 g / diethyl ether View Scheme