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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1366617Generated: November 1, 2026

Hydrochloric Acid → HCID 66936209, compound

https://huagongshe.com/reaction/1366617

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 66936495HCID 66936495—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductHCID 66936209HCID 66936209104.2%

Reaction Steps

To a solution of the first eluting enantiomer of N,N,5,5-tetramethyl-1-(phenylmethyl)-3-pyrrolidinamine (1.0607 g, 4.569 mmol) in MeOH (40 mL) was added 1 N aq. HCl (9.1 mL, 9.1 mmol) and 10% Pd/C (50% water, 265 mg). The mixture was hydrogenated overnight and was then filtered through a 0.2 μm PTFE membrane. The solution was concentrated in vacuo, and the residue was azeotroped with MeOH (5×50 mL) to give crude N,N,5,5-tetramethyl-3-pyrrolidinamine dihydrochloride (1.0206 g, >100% crude yield) as a white foam. LCMS: (M+H)+: 143.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893056B2
Source datasetuspto-grants-2011_02
ORD IDord-a00c3b78635f49228d0d89706f14a1df
Source noteuspto-grants-2011_02