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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1245471Generated: November 1, 2026

Hydrochloric Acid → 2-Pyridinamine, 4-phenyl-

https://huagongshe.com/reaction/1245471

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 4-phenylpyridin-2-ylcarbamateHCID 21912853—
SolventEthyl AcetateHCID 8857—
Product2-Pyridinamine, 4-phenyl-HCID 109014—

Reaction Conditions

Temperature60 °C

Reaction Steps

A stream of HCl gas was bubbled into a suspension of tert-butyl 4-phenylpyridin-2-ylcarbamate (1–2, 0.93 g, 3.4 mmol, 1 equiv) in EtOAc (50 mL) at 0° C. for 2 min. The acidified solution was then heated at 60° C. for 3 h. The reaction mixture was cooled then concentrated to give 4-phenylpyridin-2-amine (1-3) as an off-white solid. LRMS m/z (M+H) Calcd: 171.2, found 170.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07125888B2
Source datasetuspto-grants-2006_10
ORD IDord-451ca872e6c545a785a87abbcb333346
Source noteuspto-grants-2006_10