Hexane → HCID 21221331, Verbindung

To a solution of carbon tetrabromide (16.7 g) in methylene chloride (35 ml) was added triphenylphosphine (26.0 g) in methylene chloride (35 ml) at 0° C., and the mixture was stirred for 10 min. To the mixture was added a solution of 1-(3-formylpropyl)-3-methoxybenzene (3.00 g) in methylene chloride (20 ml) at 0° C. The mixture was stirred for 30 min at 0° C. To the mixture was added gradually n-hexane, and the mixture was filtered to remove triphenylphosphineoxide. The filtrate was washed with water and a saturated aqueous solution of sodium chloride, successively, dried over anhydrous magnesium sulfate, and evaporated. The residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=24:1) to give the title compound (5.33 g) having the following physical data.

1. stirringThe mixture was stirred for 30 min at 0° C
2. filtrationthe mixture was filtered
3. customto remove triphenylphosphineoxide
4. washThe filtrate was washed with water
5. dry with materiala saturated aqueous solution of sodium chloride, successively, dried over anhydrous magnesium sulfate
6. customevaporated
7. customThe residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=24:1)

ORD-Eintrag

ord-6b0aef291b74498392e9359054d1ec8b

Quelldatensatz

uspto-grants-1999_08

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US05935985