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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1712236Generated: October 27, 2026

Butyl bromide → 3-Butylpentane-2,4-dione

https://huagongshe.com/reaction/1712236

Reaction equation

Participants

RoleNameHCIDCharge
ReactantButyl bromideHCID 8002—
ReactantPotassium CarbonateHCID 11430—
ReactantAcetylacetoneHCID 31261—
SolventAcetoneHCID 180—
Product3-Butylpentane-2,4-dioneHCID 7376355.4%

Reaction Steps

2,4-pentanedione (205.4 ml, 2.0 mol), acetone (100 ml), n-butyl bromide (54 ml, 0.5 mol) and potassium carbonate (34.55 g, 0.25 mol) were put in a reaction vessel, purged with nitrogen and refluxed for 48 hours. The generated solid was filtered, and the solvent was removed using an evaporator. Unreacted 2,4-pentanedione was then removed under reduced pressure using a diaphragm. Then, vacuum distillation was then used to obtain 3-n-butyl-2,4-pentanedione (43.25 g, yield 55%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07791069B2
Source datasetuspto-grants-2010_09
ORD IDord-82e7b78c0305463299b46ceb5252f8df
Source noteuspto-grants-2010_09