Acetyl chloride → Ethanol, 2-((4-(4-morpholinyl)-6-propyl-1,3,5-triazin-2-yl)amino)-, acetate (ester)

Participants

Reaction Conditions

Reaction Steps

4 3 g (0.055 mole) of acetyl chloride, dissolved in 50 ml of dichloromethane, and 5.5 g (0.055 mole) of triethylamine, dissolved in 50 ml of dichloromethane, are simultaneously introduced, between 0° and 5° C., into a solution of 13.4 g (0.05 mole) of 2-[(4-morpholino-6-propyl-1,3,5-triazin-2-yl)amino]-ethanol (compound 1 prepared in Example 1) in 200 ml of dichloromethane. The addition of these two reagents is regulated in a manner such that the acid chloride is always present in the reaction mixture in excess with respect to the triethylamine. The mixture is stirred for one hour at 5° C. and then for 12 hours at room temperature. The reaction mixture is washed successively with an aqueous solution of sodium bicarbonate and with water. It is dried over sodium sulfate and the solvent is evaporated under reduced pressure. The residue crystallizes in a mixture of toluene-hexane 1:2. The product obtained is first purified by chromatography on silica (eluent: 95:5 (v/v) dichloromethane-ethanol) and is then firstly recrystallized from a mixture of toluene-hexane 1:1. 9.3 g of 2-[[2-(acetoxy)ethyl]amino]-4-morpholino-6-propyl-1,3,5-triazine are obtained.

Provenance & Evidence