Hydrochloric Acid → Ethyl 3-methoxy-4-oxopiperidine-1-carboxylate

反応式

[CH3:1][O:2][CH:3]1[C:8]([O:11]C)(OC)[CH2:7][CH2:6][N:5]([C:13]([O-:15])=[O:14])[CH2:4]1.CO.Cl.O1CCO[CH2:21][CH2:20]1>>[CH3:1][O:2][CH:3]1[C:8](=[O:11])[CH2:7][CH2:6][N:5]([C:13]([O:15][CH2:20][CH3:21])=[O:14])[CH2:4]1

参加物

反応物 4

HCID 313Hydrochloric Acid

HCID 887Methanol

HCID 312751,4-Dioxane

HCID 866132863,4,4-Trimethoxypiperidine-1-carboxylate

生成物 1

HCID 2724451Ethyl 3-methoxy-4-oxopiperidine-1-carboxylate

実験手順

The title compound was prepared by taking 3,4,4-trimethoxypiperidine-1-carboxylate (210 mg, 0.00085 mol) in Methanol (5 mL, 0.1 mol) and adding 4 M of Hydrogen chloride in 1,4-dioxane (5 mL). The reaction was allowed to stir for 4 h at ambient temperature. The residue obtained by removing the solvent in vacuo was used in the next step as-is (170 mg, 99%). MS calculated for C9H15NO4: (M+H) 202; found 202.1.