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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 592399Generated: October 30, 2026

HCID 67981250, compound → 1-(1-Methyl-3-pyrrolidinyl)-1H-pyrazol-4-amine

https://huagongshe.com/reaction/592399

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 67981250HCID 67981250—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product1-(1-Methyl-3-pyrrolidinyl)-1H-pyrazol-4-amineHCID 67981641—

Reaction Steps

A solution of 1-(1-methylpyrrolidin-3-yl)-4-nitro-1H-pyrazole A23 (0.575 g, 2.93 mmol) and 10% Pd/C (0.061 g) in EtOH (15 mL) was stirred under a hydrogen atmosphere for 16 hours. The reaction mixture was filtered through Celite and the solvent was removed in vacuo to give the title compound A24 as a red oil (0.555 g, quantitative). 1H NMR (300 MHz, MeOD) δ 2.27-2.42 (m, 1H), 2.72-2.76 (m, 2H), 3.02-3.10 (m, 1H), 3.46-3.55 (m, 1H), 3.70-3.85 (m, 4H), 5.14-5.26 (m, 1H), 7.33 (s, 1H), 7.46 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238644B2
Source datasetuspto-grants-2016_01
ORD IDord-2ac645e1682f41ddab2e14f322cc3a2e
Source noteuspto-grants-2016_01