potassium hydroxide Heating;

1: With acetic acid; zinc T=135°C; 2: With pyridine; acetyl chloride T=0 - 20°C; 3: With methylamine in methanol; dichloromethane T=0 - 20°C;

acetic acid; zinc T=135°C; 24 h;

1: sulfuric acid / man stellt das Natriumsalz dar 2: durch Kalischmelze View Scheme

1: triethylamine / CH2Cl2 / 2 h / -15 - -5 °C 2: 1.10 g / CuI; triethylamine; triphenylphosphine / PdCl2(PPh3)2 / dimethylformamide / 1 h / 80 °C 3: 99 percent / KOH / methanol; H2O / 20 °C View Scheme