Hydrochloric Acid → 6-amino-3-methyl-2,3-dihydro-1H-inden-1-one

Participants

Reaction Conditions

Reaction Steps

As presented in the following reaction formula, tin chloride (SnCl2; 26.5 g, 0.117 mol) was added at room temperature to a mixture of 3-methyl-6-nitro-2,3-dihydro-1-H-inden-1-one (5.0 g, 0.026 mol), hydrochloric acid (HCl; 90 mL) and water (H2O; 30 mL), and the reaction mixture was stirred at 40° C. for 0.5 hours. After the completion of reaction, the mixture was treated with saturated, anhydrous potassium carbonate (K2CO3; 300 mL) and then extracted three times with 100 mL of dichloromethane. The combined organic phase was concentrated to give 6-amino-3-methyl-2,3-dihydro-1-H-inden-1-one (3.8 g, yield: 92%).

Provenance & Evidence