Iodine → 1-(3-Bromophenyl)octan-1-ol

Temperatur

65 °C

A small amount of iodine was added to a solution (100 ml) of magnesium (9.8 g) in anhydrous tetrahydrofuran and the mixture was stirred at 50° C. until the color of the iodine disappeared. A solution of heptyl bromide in anhydrous tetrahydrofuran (200 ml) was dropwise added thereto over 1 hour. The mixture was stirred at 65° C. for 1 hour and a solution of m-bromobenzaldehyde in anhydrous tetrahydrofuran (200 ml) was dropwise added thereto under ice-cooling. The mixture was stirred at room temperature for 30 minutes. Under ice-cooling, a saturated aqueous ammonium chloride solution (7.3 ml) was added thereto and the mixture was stirred for 1 hour. The insoluble matters were filtered off and the filtrate was concentrated. The concentrate was dissolved in ethyl acetate and the mixture was washed with water. The mixture was dried over magnesium sulfate and the solvent was distilled away. The residue obtained was purified by silica gel column chromatography (eluent; hexane:ethyl acetate=10:1) to give 50.9 g of the subject compound as an oily substance.

1. temperatureunder ice-cooling
2. stirringThe mixture was stirred at room temperature for 30 minutes
3. temperatureUnder ice-cooling
4. stirringthe mixture was stirred for 1 hour
5. filtrationThe insoluble matters were filtered off
6. concentrationthe filtrate was concentrated
7. dissolutionThe concentrate was dissolved in ethyl acetate
8. washthe mixture was washed with water
9. dry with materialThe mixture was dried over magnesium sulfate
10. distillationthe solvent was distilled away
11. customThe residue obtained
12. customwas purified by silica gel column chromatography (eluent; hexane:ethyl acetate=10:1)

ORD-Eintrag

ord-d77012a9c0814aa5a4af4a5d2e1b6135

Quelldatensatz

uspto-grants-1998_02

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US05719176