Iodoethanol → HCID 68110149, compound

Temperature

2.5 °C

To a 100-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen was added a solution of benzyl N-[4-(dimethylamino)cyclohexyl]carbamate (2 g, 7.24 mmol, 1.00 equiv) in tetrahydrofuran (20 mL). This was followed by the addition of a solution of sodium hydride (320 mg 60% W/W, 7.971 mmol, 1.1 equiv) in tetrahydrofuran (10 mL) dropwise with stirring at 0-5° C. The resulting solution was stirred for 2 h at room temperature. To this was added 2-iodoethan-1-ol (2.5 g, 14.54 mmol, 2.01 equiv) dropwise with stirring at 0-5° C. The resulting solution was allowed to react, with stirring, for an additional 4 days at room temperature. The reaction was then quenched by the addition of 10 mL of water and concentrated under vacuum. The residue was washed with a solution of dichloromethane/methanol (10:1, 20 mL×4) and the organic layers combined, dried and concentrated to give 3.5 g (crude) of benzyl N-[4-(dimethylamino)cyclohexyl]-N-(2-hydroxyethyl)carbamate as a yellow oil. MS: m/z 321 (M+H)+.

1. customTo a 100-mL 3-necked round-bottom flask purged
2. temperaturemaintained with an inert atmosphere of nitrogen
3. stirringThe resulting solution was stirred for 2 h at room temperature
4. stirringwith stirring at 0-5° C
5. customto react
6. stirringwith stirring, for an additional 4 days at room temperature
7. customThe reaction was then quenched by the addition of 10 mL of water
8. concentrationconcentrated under vacuum
9. washThe residue was washed with a solution of dichloromethane/methanol (10:1, 20 mL×4)
10. customdried
11. concentrationconcentrated

ORD record

ord-566e4343421147f69ed351419a829437

Source dataset

uspto-grants-2014_04

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08703941B2