Hydrochloric Acid → 1-Dimethylamino-4-[1-(1-ethoxy-ethoxy)-2-phenylethyl]cyclohexanecarbonitrile

40% aqueous dimethylamine solution (6.05 ml, 47.9 mmol) was added to a mixture of 4 M hydrochloric acid (2.61 ml) and methanol (1.56 ml), while cooling with ice. A solution of 4-[1-(1-ethoxy-ethoxy)-2-phenylethyl]cyclohexanone (2.91 g, 10.0 mmol) in methanol (6 ml) and tetrahydrofuran (3 ml) was added to this mixture. Thereafter, potassium cyanide (1.56 g, 24.1 mmol) was added to the mixture, the mixture was stirred at room temperature overnight, water (150 ml) was then added and the mixture was extracted with diethyl ether (4×50 ml). The combined organic phases were dried with sodium sulfate and concentrated i. vac. The residue was taken up in methylene chloride (50 ml) and the mixture was washed with water (30 ml). The organic phase was dried again with sodium sulfate and concentrated i. vac.

1. temperaturewhile cooling with ice
2. extractionthe mixture was extracted with diethyl ether (4×50 ml)
3. dry with materialThe combined organic phases were dried with sodium sulfate
4. concentrationconcentrated i
5. washthe mixture was washed with water (30 ml)
6. dry with materialThe organic phase was dried again with sodium sulfate
7. concentrationconcentrated i

ORD-Eintrag

ord-21c484039fc04503b1778d68549300f2

Quelldatensatz

uspto-grants-2012_10

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08288406B2