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(S)-2-{N-(methyl-1-naphthyl)-N-[(1-ethylpyrrolidin-2-yl)methyl]aminomethyl}-4,6-dicumylphenol[ No CAS ]
Yield
Reaction Conditions
Operation in experiment
60.9%
In a 100 mL eggplant bottle, 1.22 g of benzaldehyde, 30 mL of anhydrous ethanol,(S) -1-ethyl-2-aminomethyltetrahydropyrroline, and the mixture was heated under reflux for 24 hours.Adding 0.76 g of sodium borohydride, stirring for 3 hours, cooling to room temperature, pouring into water, dichloromethane extraction organic phase, anhydrous magnesium sulfate drying, extraction solvent to light yellow viscous liquid. Add 30 mL of absolute ethanol,0.6 g of paraformaldehyde, 3.30 g of 2,4-dicumylphenol, and heated under reflux for 12 hours.The crude product was chromatographed on silica gel to give a pale brown liquid L3 (3.41 g, 60.9percent).