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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1474192Generated: November 1, 2026

Hydrochloric Acid → 5-[1-(ethyloxy)-2-piperazin-1-ylethyl]-4-methyl-2-benzofuran-1(3H)-one hydrochloride

https://huagongshe.com/reaction/1474192

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,1-Dimethylethyl-4-[2-(ethyloxy)-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazine-1-carboxylateHCID 86647295—
Solvent1,4-DioxaneHCID 31275—
Product5-[1-(ethyloxy)-2-piperazin-1-ylethyl]-4-methyl-2-benzofuran-1(3H)-one hydrochlorideHCID 67517541—

Reaction Steps

1,1-Dimethylethyl-4-[2-(ethyloxy)-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazine-1-carboxylate was treated with 4M HCl in dioxane (4 mL) and stirred at room temperature for 1 h. The reaction mixture was concentrated to dryness. Analysis by LC indicated complete removal of the Boc group and formation of 5-[1-(ethyloxy)-2-piperazin-1-ylethyl]-4-methyl-2-benzofuran-1(3H)-one hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09018211B2
Source datasetuspto-grants-2015_04
ORD IDord-e6aca2dbc1b84d3087a55157be0f2d38
Source noteuspto-grants-2015_04