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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1253679Generated: November 2, 2026

Acetyl chloride → (4-Methylpiperazin-1-yl)(3-azaspiro[5.5]undecan-9-yl)methanone hydrochloride

https://huagongshe.com/reaction/1253679

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetyl chlorideHCID 6367—
ReactantTert-butyl 9-(4-methylpiperazine-1-carbonyl)-3-azaspiro[5.5]undecane-3-carboxylateHCID 67546380—
SolventEthanolHCID 702—
Product(4-Methylpiperazin-1-yl)(3-azaspiro[5.5]undecan-9-yl)methanone hydrochlorideHCID 66700938—

Reaction Steps

Ethanol (3 ml) and acetyl chloride (0.24 ml, 3.43 mmol) were added to tert-butyl 9-(4-methylpiperazine-1-carbonyl)-3-azaspiro[5.5]undecane-3-carboxylate (0.26 g, 0.685 mmol) and the mixture was stirred at room temperature for 12 h. When the reaction was complete, the solvent was removed in vacuo. Yield: 0.22 g (101%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08455475B2
Source datasetuspto-grants-2013_06
ORD IDord-8fcfe567d583432e96e937f67fb5033b
Source noteuspto-grants-2013_06