Acetonitrile → HCID 19922010, compound

Participants

Reaction Steps

A mixture of 7.82 g (50 mmol) of 5-chlorosalicylaldehyde, 92.1 g (0.4 mol) of 1,5-dibromopentane, 22.1 g (0.15 mol) of anhydrous granular potassium carbonate, and 360 mL of acetonitrile was stirred and refluxed for 20 hr. The resulting slurry was cooled and diluted with 300 mL of ether. The solids were removed by suction filtration and washed thoroughly with ether. The filtrate and washes were combined and concentrated under water aspirator pressure. The excess 1,5-dibromopentane was removed by distillation under high vacuum. Flash chromatography of the residue on silica gel (eluting with 4:1 hexane-ether) afforded 12.5 g (81.8%) of 2-[(5-bromopentyl)oxy]-5-chlorobenzaldehyde as a yellow oil.

Provenance & Evidence