Hydrochloric Acid → HCID 18354092, compound

Participants

Reaction Steps

Into a reducing device equipped with a thermometer, a reflux condenser and an agitator were charged 72 g of 1,3-bis(3-nitro-5-trifluoromethylphenoxy)benzene (0.147 mol), 500 mL of isopropyl alcohol and 7.2 g of 5%-Pd/C (50% of water content), and the mixture was reacted at 50° C. for 5 hours in an atmosphere of hydrogen. At the end of the reaction, the catalyst was filtered out, the filtrate was condensed under a reduced pressure and the residue was dissolved in 200 g of isopropanol and 400 g of 36% HCl was added to the solution to precipitate the desired hydrochloride. The hydrochloride was suspended in 150 g of water and 200 g of 1, 2-dichloroethane (EDC), the mixture was neutralized with 28% ammonium hydroxide aq. and separated, and the EDC layer was washed with water and evaporated to give 1,3-bis(3-amino-5-trifluoromethylphenoxy)benzene as a brown viscous liquid; Yield: 33.8 g (53.7%).

Provenance & Evidence