sulfuric acid T=-10°C; 1 h;

1: 65 percent / 12 M H2SO4 / 1 h / -10 °C 2: 97 percent / KOH / methanol / 24 h / Ambient temperature View Scheme

in toluene

1: ethyl Phenoxyacetate With lithium hexamethyldisilazane in tetrahydrofuran; toluene T=-78°C; Claisen condensation; 0.0333333 h; 2: acetyl chloride in tetrahydrofuran; toluene Claisen condensation; 0.166667 h;

potassium carbonate; acetone