Reacción #6196

Ecuación de reacción

4-(3-aminopropylthio)pyridine dihydrochloride

triethylamine

pivaloyl chloride

→

desired compound

Rendimiento 96.4%

4-[3-(pivaloylamino)propylthio]pyridine hydrochloride

Rendimiento 96.4%

Disolventes

methylene chloride

Condiciones de reacción

Tratamiento posterior

1. 1
   Temperaturacooling
2. 2
   workup.STIRRINGthe mixture was stirred at room temperature for 30 minutes
3. 3
   LavadoThe reaction mixture was washed with an aqueous saturated sodium bicarbonate solution and water
4. 4
   Otrodried
5. 5
   workup.DISTILLATIONThe solvent was distilled off
6. 6
   OtroThe residue was purified by column chromatography (eluent: ethyl acetate)

Procedimiento

To a solution of 1.00 g (4.15 mmol) of 4-(3-aminopropylthio)pyridine dihydrochloride and 2.77 ml (19.8 mmol) of triethylamine in 40 ml of methylene chloride was added 0.61 ml (4.96 mmol) of pivaloyl chloride under ice-cooling with stirring and the mixture was stirred at room temperature for 30 minutes. The reaction mixture was washed with an aqueous saturated sodium bicarbonate solution and water and dried. The solvent was distilled off. The residue was purified by column chromatography (eluent: ethyl acetate) to obtain 1.01 g of the desired compound (free base) (96.4%, yellow oil).

Fuente