Water → HCID 54366657, compound

A solution (30 ml) of 1-bromo-5-chloropentane (7.0 g) in tetrahydrofuran was gently added dropwise under refluxing to a suspension (30 ml) of magnesium (0.92 g) in tetrahydrofuran. After confirmation of disappearance of magnesium, a solution (30 ml) of 3-chlorobenzaldehyde (5.3 g) in tetrahydrofuran was dropwise added. After cooling, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with brine, dried and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography to give 6-bromo-1-(3-chlorophenyl)-1-hexanol, which was dissolved in chloroform (50 ml). Thereto was added 15 equivalents of manganese dioxide, and the mixture was stirred at room temperature for 48 hr. The reaction mixture was filtered, and the residue was purified by silica gel column chromatography to give 6-bromo-1-(3-chlorophenyl)-1-hexanone.

1. temperatureAfter cooling
2. extractionthe mixture was extracted with ethyl acetate
3. washThe organic layer was washed with brine
4. customdried
5. customthe solvent was evaporated under reduced pressure
6. customThe obtained residue was purified by silica gel column chromatography

ORD record

ord-a0d9b83e9824400d8000060f7ea84ffa

Source dataset

uspto-grants-1999_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05864039