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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1500321Generated: October 30, 2026

Potassium Hydroxide → 3543-21-3

https://huagongshe.com/reaction/1500321

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantChloroform methanolHCID 21584188—
ReactantHCID 67366133HCID 67366133—
SolventEthanolHCID 702—
Product3543-21-3HCID 59401689151.7%

Reaction Steps

11 g KOH were added to a solution of 7.3 g (1 eq) benzyloxycarbonyl-4-phenyl-4-(pyrrolidin-1-yl)piperidine in 100 ml ethanol and the reaction mixture was refluxed for 24 h. The reaction course was monitored by thin-layer chromatography (20% MeOH/CHCl3). Once the conversion was complete, the solvent was distilled off completely and the residue mixed with 100 ml water and extracted 3 times with 100 ml CHCl3. The combined organic phases were dried with Na2SO4. Following removal of the solvent under reduced pressure, 7 g of crude product were obtained in the form of an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09206156B2
Source datasetuspto-grants-2015_12
ORD IDord-011bf44ee23a48e284d50fa83b8efb66
Source noteuspto-grants-2015_12