1: With sulfuric acid in water T=100°C; 0.166667 h; Heating / reflux; 2: With sodium hydroxide in water T=0°C; pH=9;

1: With magnesium sulfate in N,N-dimethyl acetamide T=55°C; 48 h; 2: With sulfuric acid; water T=100°C; 0.166667 h; 3: With sodium hydroxide in water T=0°C; pH=9;