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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1864499Generated: November 1, 2026

1,4-Dioxane hydrochloride → 4-Piperidinone O-methyloxime hydrochloride

https://huagongshe.com/reaction/1864499

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-Dioxane hydrochlorideHCID 20443148—
Reactant4-Methoxyimino-piperidine-1-carboxylic Acid Tert-butyl EsterHCID 49759141—
SolventMethanolHCID 887—
Product4-Piperidinone O-methyloxime hydrochlorideHCID 14878800—

Reaction Steps

4-Methoxyimino-piperidine-1-carboxylic acid tert-butyl ester in MeOH (10 mL) was treated with 4.0 M HCl/dioxane (1.0 mL) and stirred at room temperature over night. The solution was concentrated to yield 213 mg of the title compound without further purification. 1H NMR (DMSO, 300 MHz) δ ppm 2.47 (t, 2H, J=6.62 Hz), 2.68 (t, 2H, J=6.07 Hz), 3.17 (m, 4H), 3.77 (s, 3H), 9.08 (bs, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07625909B2
Source datasetuspto-grants-2009_12
ORD IDord-4b8fcd11566e479ebc1f1713cf509491
Source noteuspto-grants-2009_12