Triethylamine → 4-(3-(N-2-pyridylmethylamino)propylthio]pyridine

Temperature

80 °C

To a solution of 5.26 g (31.1 mmol) of 4-(3-hydroxypropylthio)pyridine and 5.20 ml (37.3 mmol) of triethylamine in 150 ml of methylene chloride, 2.90 ml (37.3 mmol) of methanesulfonyl chloride was added under ice-cooling with stirring. The mixture was stirred at room temperature for 30 minutes. The reaction mixture was washed with a saturated aqueous solution of sodium bicarbonate and water and dried, and then the solvent was distilled off. To 6.33 g of the residue was added 2.64 ml (25.6 mmol) of 2-aminomethylpyridine. The resulting mixture was heated at 80° C. for 3 hours. After cooling, the mixture was purified by column chromatography (eluent: chloroform/methanol=25:1) to obtain 1.62 g of the desired compound (yield: 25.4%, yellow oil).

1. temperaturecooling
2. stirringThe mixture was stirred at room temperature for 30 minutes
3. washThe reaction mixture was washed with a saturated aqueous solution of sodium bicarbonate and water
4. customdried
5. distillationthe solvent was distilled off
6. temperatureAfter cooling
7. customthe mixture was purified by column chromatography (eluent: chloroform/methanol=25:1)

ORD record

ord-9a9a1fc08b224050b6bc9bda7fc64182

Source dataset

uspto-grants-1993_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05246948