1.1: water; potassium hydroxide / ethanol / 6 h / Reflux 1.2: pH 2 2.1: 2,6-di-tert-butyl-4-methyl-phenol; triethylamine / tetrahydrofuran / 0 - 45 °C View Scheme

potassium carbonate in butanone Williamson synthesis; 48 h; Reflux;