sodium hydroxide 2 h; Heating;

1: 69 percent / 0.25M NaOH / ethanol / 0.5 h / Ambient temperature 2: 7 percent / 10percent HCl / 2 h / 100 °C View Scheme

1: 90 percent / 180 °C 2: 72 percent / N,N-dimethyl-acetamide / 5 h / 50 °C 3: 69 percent / 0.25M NaOH / ethanol / 0.5 h / Ambient temperature 4: 7 percent / 10percent HCl / 2 h / 100 °C View Scheme

1: 72 percent / N,N-dimethyl-acetamide / 5 h / 50 °C 2: 69 percent / 0.25M NaOH / ethanol / 0.5 h / Ambient temperature 3: 7 percent / 10percent HCl / 2 h / 100 °C View Scheme

tetra(n-butyl)ammonium hydroxide; triethylamine 1.) CH2Cl2, RT, 6 h, 2.) n-butanol, reflux, 3 h; Yield given. Multistep reaction. Yields of byproduct given;