Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1586724Generated: November 2, 2026

Water → HCID 19759158, compound

https://huagongshe.com/reaction/1586724

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
ReactantN-(3-Chloropropyl)dibutylamineHCID 96084—
ReactantHCID 19759090HCID 19759090—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 19759158HCID 19759158—

Reaction Steps

To a solution of 0.0085 mol of 2-(4-hydroxy-benzenesulphonyl)pyridine in 50 ml of dimethylsulphoxide, were added 3 g of finely crushed anhydrous potassium carbonate. The mixture was then maintained under stirring for 30 min and 0.015 mol of 1-chloro-3-(di-n-butylamino)propane was added. Stirring was still maintained for 24 hours and the reaction mixture was then poured into water and extracted with ethyl ether. The organic layer was washed with water, dried on sodium sulphate and filtered. After the filtrate was evaporated, the desired product so obtained was purified by chromatography on a silica column using methanol as eluent. The pure base so obtained was then transformed into an oxalate by addition of oxalic acid in ethyl ether.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05215988
Source datasetuspto-grants-1993_06
ORD IDord-b2832b53d1df4b218bf3865296f70583
Source noteuspto-grants-1993_06