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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1494396Generated: October 31, 2026

Water → HCID 86744869, compound

https://huagongshe.com/reaction/1494396

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTolueneHCID 1140—
ReactantPiperazineHCID 4837—
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant1-TetraloneHCID 10724—
ProductHCID 86744869HCID 86744869—

Reaction Steps

The foregoing tetralone (3.27 g; 17.3 mmol) was dissolved in 150 ml of toluene. To the solution then were added 3.04 g (34.6 mmol) of piperazine followed by 7.2 g (38.2 mmol) of p-toluenesulfonic acid. The mixture was stirred at reflux under nitrogen with constant water removal. After 2 hours, the reaction mixture was cooled to room temperature, and the volatiles were removed in vacuo to obtain 3-piperazinyl-4-methyl-5-methoxy-1,2-dihydronaphthalene tosylate as a light yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05026707
Source datasetuspto-grants-1991_06
ORD IDord-3365405d7c354e4983d658cfc410ebcd
Source noteuspto-grants-1991_06