反应详情

A solution of 6.8 grams (0.022 mole) of 2-{[(6-chloro(3-pyridyl)methyl][(4-methoxyphenyl)methyl]amino}ethan-1-ol in 200 mL of chloroform was stirred and a solution of 2.9 grams (0.024 mole) of thionyl chloride in 50 mL of chloroform was added dropwise. Upon completion of addition, the reaction mixture was stirred at ambient temperature during one hour, and then it was warmed to reflux where it stirred for 2.5 hours. After this time the reaction mixture was cooled to room temperature and was slowly poured into a solution of 100 mL of aqueous 5% sodium carbonate. The organic layer was separated and dried with sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure to a residue. The residue was purified with column chromatography on silica gel. Elution was accomplished using 2% diethyl ether in methylene chloride as an eluant. The appropriate fractions were combined and concentrated under reduced pressure, yielding 6.4 grams of the subject compound. The NMR spectrum was consistent with the proposed structure.

1. additionUpon completion of addition
2. temperatureit was warmed
3. temperatureto reflux where it
4. stirringstirred for 2.5 hours
5. temperatureAfter this time the reaction mixture was cooled to room temperature
6. customThe organic layer was separated
7. dry with materialdried with sodium sulfate
8. filtrationfiltered
9. concentrationthe filtrate was concentrated under reduced pressure to a residue
10. customThe residue was purified with column chromatography on silica gel
11. washElution
12. concentrationconcentrated under reduced pressure