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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2421373Generated: November 1, 2026

Hydrochloric Acid → HCID 21914372, compound

https://huagongshe.com/reaction/2421373

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 21914252HCID 21914252—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 21914372HCID 21914372102.6%

Reaction Steps

4-Bromo-3-(2-{piperidin-1-yl}ethoxy)phenyl 4-methylbenzenesulfonate (24.2 g), potassium hydroxide (16.1 g), water (96 ml) and ethanol (860 ml) were heated on the steam bath for 2 h. The pH was adjusted to 4 with concentrated hydrochloric acid, then to pH 7 with solid sodium bicarbonate. After evaporation to near dryness, water (200 ml) was added and the mixture was extracted with ethyl acetate (3×150 ml). The organic phase was washed with water, brine, dried (MgSO4) and evaporated to give an oil (16.4 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07956084B2
Source datasetuspto-grants-2011_06
ORD IDord-32803d3539da4925b6e7ded171a99a6c
Source noteuspto-grants-2011_06