Iodoethane → 4-(1-Ethyl-4-piperidinyl)-1-butanol

To stirring solution of 4-(4-piperidinyl)-1-butanol hydrochloride (4.51 g, 23.28 mmol) and potassium carbonate (8.04 g, 58.2 mmol) in dry acetonitrile (60 ml) was added iodoethane (2.070 ml, 25.6 mmol). The reaction mixture was allowed to stir at room temperature for 4 hours. The reaction mixture was concentrated in vacuo and the residue partitioned between water (20 ml) and ethyl acetate (30 ml). The aqueous was re-extracted with ethyl acetate (1×30 ml) then dichloromethane (1×30 ml), the organic layers dried by passage through a hydrophobic frit), combined and concentrated in vacuo to give the title compound as a yellow gum (2.41 g).

1. concentrationThe reaction mixture was concentrated in vacuo
2. customthe residue partitioned between water (20 ml) and ethyl acetate (30 ml)
3. extractionThe aqueous was re-extracted with ethyl acetate (1×30 ml)
4. dry with materialdichloromethane (1×30 ml), the organic layers dried by passage through a hydrophobic frit),
5. concentrationconcentrated in vacuo

ORD record

ord-4dfcc2c2b8a44f54b4cde0af5f947f7c

Source dataset

uspto-grants-2013_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08563717B2