1: With sulfuric acid 3 h; Heating / reflux; 2: With sodium hydroxide in water T=0°C; pH=> 10; Product distribution / selectivity;

potassium hydroxide; sulfuric acid; acetic anhydride

1: acetyl chloride With AlCl3, aluminium chloride in dichloromethane T=20°C; 0.666667 h; 2: 2-isopropyl-pyrazolo[1,5-a]pyridine in dichloromethane T=20°C; 20 h; Product distribution / selectivity;