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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2173166Generated: October 29, 2026

Hydrochloric Acid → HCID 66647325, compound

https://huagongshe.com/reaction/2173166

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 59568678HCID 59568678—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 66647325HCID 66647325—

Reaction Steps

tert-Butyl-4-[2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazine-1-carboxylate (800 mg, 2.1 mmol, 1.0 eq) was treated with 4 N HCl in dioxane (4 mL). The reaction was stirred at r.t. for 3 h and then concentrated. The product was dried under high vacuum pump for 6 hr. The intermediate is often converted to the corresponding free base prior to use by partitioning between saturated Na2CO3 solution and CHCl3-IPA (3:1). LC-MS (IE, m/z): 277.1 [M+1]+; tR=0.4 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09056859B2
Source datasetuspto-grants-2015_06
ORD IDord-c2e482f678a141daad4e2bb5d42f51c5
Source noteuspto-grants-2015_06