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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1700866Generated: November 2, 2026

Bromocyclopentane → HCID 18319333, compound

https://huagongshe.com/reaction/1700866

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromocyclopentaneHCID 8728—
ReactantPotassium CarbonateHCID 11430—
Reactant5-Hydroxy-2-MethoxybenzaldehydeHCID 358341—
SolventAcetonitrileHCID 6342—
ProductHCID 18319333HCID 18319333—

Reaction Conditions

Temperature80 °C

Reaction Steps

5.45 g of potassium carbonate (39.4 mmol) and 4.2 ml of bromocyclopentane (39.4 mmol) are added to a solution of 4 g of 5-hydroxy-2-methoxybenzaidehyde (26.3 mmol) in 27 ml of acetonitrile. The mixture is stirred for 16 hours at 80° C. and is then poured into ice-cold water and extracted with ether, and the organic phase is washed with normal aqueous sodium hydroxide solution and then with saturated aqueous sodium chloride solution. The organic phase is dried over magnesium sulfate and filtered, and the solvent is evaporated off under vacuum. The title product is isolated by bulb-to-bulb oven distillation (T=200° C., P=10 mbar). 4.13 g of a pale yellow oil are obtained:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06350913B1
Source datasetuspto-grants-2002_02
ORD IDord-13a57402b62d4e0485c18651e9e9d798
Source noteuspto-grants-2002_02