Ethanol → 2-Chloro-5-(ethoxymethyl)pyridine
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8]Cl)=[CH:4][N:3]=1.[H-].[Na+].[CH2:12]([OH:14])[CH3:13]>>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][O:14][CH2:12][CH3:13])=[CH:4][N:3]=1Participants
4
Procedure
2-Chloro-5-chloromethyl-pyridine (1 g, 6.2 mmol) was dissolved in 15 ml dry ethanol. After cooling in an ice bath NaH (248 mg 60%, 6.2 mmol) was added to this solution. The reaction was warmed to rt and stirred for 16 hours. After this time the reaction was quenched with 15 ml ice-water and extracted with ethyl acetate (2×50 ml). The combined organic layers were washed with brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography using 5%-10% ethyl acetate in hexane to afford 400 mg of 2-Chloro-5-ethoxymethyl-pyridine (yield 37%).
Workup
- additionwas added to this solution
- customAfter this time the reaction was quenched with 15 ml ice-water
- extractionextracted with ethyl acetate (2×50 ml)
- washThe combined organic layers were washed with brine
- dry with materialdried over sodium sulfate
- concentrationconcentrated in vacuo
- customThe residue was purified by column chromatography
Sources & evidence
- ORD record
- ord-69d7d3834c6c4c96b44bbbd20ca946d0
- Source dataset
- uspto-grants-2012_10
- Patent number
- US08299077B2
Reaction notes
Loading…