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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1842557Generated: November 4, 2026

Hydrochloric Acid → HCID 59539668, compound

https://huagongshe.com/reaction/1842557

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 86657026HCID 86657026—
SolventDichloromethaneHCID 6344—
ProductHCID 59539668HCID 59539668—

Reaction Steps

To a solution of tert-butyl [(1R)-1-(5-fluoro-1-oxidopyridin-2-yl)ethyl]carbamate (1.47 g, 5.74 mmol) in dichloromethane (28.7 mL) was added 4 M hydrochloric acid in 1,4-dioxane (43.0 mL, 172 mmol). After 2 h, concentration gave the title compound as a hydrochloride salt (1.396 g). MS 157.1 (M+1). 1H NMR (500 MHz, CD3OD): δ 8.55 (dd, J=4.3, 2.4 Hz, 1 H); 7.70 (dd, J=9.0, 6.7 Hz, 1 H); 7.52 (ddd, J=9.1, 7.1, 2.4 Hz, 1 H); 4.80 (q, J=7.0 Hz, 1 H); 1.74 (d, J=7.0 Hz, 3 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946231B2
Source datasetuspto-grants-2015_02
ORD IDord-3d4f242240d1433e908e049c0ddf8ac2
Source noteuspto-grants-2015_02