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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 592271Generated: October 27, 2026

Hydrochloric Acid → (R)-1-(3-Methyl-1,2,4-oxadiazol-5-yl)ethan-1-amine

https://huagongshe.com/reaction/592271

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl (R)-(1-(3-methyl-1,2,4-oxadiazol-5-YL)ethyl)carbamateHCID 86657025—
Solvent1,4-DioxaneHCID 31275—
Product(R)-1-(3-Methyl-1,2,4-oxadiazol-5-yl)ethan-1-amineHCID 28948822151.9%

Reaction Steps

To a solution of tert-butyl [(1R)-1-(3-methyl-1,2,4-oxadiazol-5-yl)ethyl]carbamate (6.0 g, 26.4 mmol) in dioxane (40 mL) was added 4 M hydrochloric acid in dioxane (30 mL). The reaction mixture was stirred for 16 h. The solution was concentrated and dried by vacuum to give hydrochloride salt of (1R)-1-(3-methyl-1,2,4-oxadiazol-5-yl)ethanamine (5.1 g). 1H NMR (500 MHz, CD3OD): δ 4.90-4.83 (m, 1H); 2.41 (s, 3H); 1.72 (d, J=7.0 Hz, 3H). MS 128.2 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238647B2
Source datasetuspto-grants-2016_01
ORD IDord-75464fa2093d433f815b987a42a47e6f
Source noteuspto-grants-2016_01