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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1655326Generated: October 31, 2026

Hydrochloric Acid → HCID 67854283, compound

https://huagongshe.com/reaction/1655326

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethyl p-toluenesulfonateHCID 6645—
ReactantSodium hydrideHCID 24758—
Reactantalpha-(4-Methyl-1-((3-(1-piperidinyl)propyl)amino)pentyl)benzenemethanolHCID 128308—
SolventAcetoneHCID 180—
SolventTolueneHCID 1140—
ProductHCID 67854283HCID 6785428321%

Reaction Steps

To a solution of (1RS,2SR)-5-methyl-1-phenyl-2-(3-piperidinopropylamino)hexan-1-ol (1.66 g, 5 mmol) in toluene (25 ml) was added sodium hydride (0.14 g, 6 mmol) and the mixture was refluxed for 1 hour. To the reaction mixture was added methyl tosylate (1.12 g, 6 mmol) and the resulting mixture was refluxed for further 1 hour. After being cooled, the mixture was washed twice with water and once with brine, dried over anhydrous sodium sulfate and then concentrated under reduced pressure. The residue was purified by neutral alumina column chromatography (alumina: 40 g, eluent: chloroform) to give 1.1 g of oily matter. To a solution of the matter in acetone (20 ml) was added concentrated hydrochloric acid (0.1 ml) and the mixture was concentrated under reduced pressure. The residue was recrystallized from acetone (10 ml)-ethanol (0.2 ml) to obtain 0.45 g of the title compound as white crystals (yield: 21%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05250546
Source datasetuspto-grants-1993_10
ORD IDord-aabc9d85e47e46cba8039f597fdfbfe0
Source noteuspto-grants-1993_10