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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1294761Generated: October 26, 2026

Hydrochloric Acid → 2-(Piperazin-1-yl)benzo[d]oxazole hydrochloride

https://huagongshe.com/reaction/1294761

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl 4-(1,3-benzoxazol-2-yl)piperazine-1-carboxylateHCID 40144297—
Solvent1,4-DioxaneHCID 31275—
Product2-(Piperazin-1-yl)benzo[d]oxazole hydrochlorideHCID 66570214—

Reaction Steps

10.8 mmol of 4-benzoxazol-2-yl-piperazine-1-carboxylic acid tert.-butyl ester were treated with 30 ml of a dioxane, saturated with gaseous hydrochloric acid. The heterogenous mixture was stirred at room temperature for 1 hour, before evaporation of the solvent. This yielded the title compound as a colorless solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07241761B2
Source datasetuspto-grants-2007_07
ORD IDord-40147853988043fa8b267e49eac810a4
Source noteuspto-grants-2007_07