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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 21788Generated: October 25, 2026

Water → 5-Bromopentylphthalimide

https://huagongshe.com/reaction/21788

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1,5-DibromopentaneHCID 8100—
ReactantPhthalimide potassium saltHCID 24194345—
SolventDimethylformamideHCID 6228—
Product5-BromopentylphthalimideHCID 22352176281.4%

Reaction Steps

Potassium phthalimide (5.4 mmoles) was added to a solution of 1,5-dibromopentane (3.72 g; 16.2 mmoles) in dimethylformamide (8 ml) and heated to 80° C. approx. under stirring. After 2 hours, water was added and the solution was repeatedly extracted with ether. The collected organic phases were washed with water, dried on Na2SO4 and evaporated under reduced pressure to give a solid (4.50 g), which was purified by chromatography on silica gel (Etp/Et2O 8:2) yielding 2.38 g of a white solid. Yield 68%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05424451
Source datasetuspto-grants-1995_06
ORD IDord-48a90d782a0f4ad6823194186ca6696b
Source noteuspto-grants-1995_06