Dimethylamine → Dimethyl(4-(3-pyridyloxy)butyl)amine

온도

100 °C

A portion of the 4-chloro-1-(3-pyridyloxy)butane was dissolved in methanol (25 mL) and added to a 40 wt % aqueous solution of dimethylamine (50 mL) in a heavy-walled glass pressure-tube apparatus. The tube was sealed and the mixture was stirred and heated at 100° C. (oil bath temperature) for 4 h. After cooling, the mixture was concentrated by rotary evaporation. Saturated NaCl solution (10 mL) was added to the residue, and the solution (pH 6) was extracted with ether (3×25 mL) to remove impurities. The aqueous layer was basified to pH 10 with 10% NaOH solution, and the mixture was extracted with chloroform (4×25 mL). The combined chloroform extracts were dried (Na2SO4), filtered, and concentrated by rotary evaporation to a residue that was dried briefly under high vacuum to give 1.26 g of an oil.

1. customThe tube was sealed
2. temperatureAfter cooling
3. concentrationthe mixture was concentrated by rotary evaporation
4. additionSaturated NaCl solution (10 mL) was added to the residue
5. extractionthe solution (pH 6) was extracted with ether (3×25 mL)
6. customto remove impurities
7. extractionthe mixture was extracted with chloroform (4×25 mL)
8. dry with materialThe combined chloroform extracts were dried (Na2SO4)
9. filtrationfiltered
10. concentrationconcentrated by rotary evaporation to a residue that
11. customwas dried briefly under high vacuum

ORD 기록

ord-7382287226f54c0bbd97afbdc9125d42

출처 데이터셋

uspto-grants-2002_08

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US06441006B2