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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 522641Generated: October 28, 2026

HCID 85968314, compound → HCID 118023076, compound

https://huagongshe.com/reaction/522641

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 85968314HCID 85968314—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductHCID 118023076HCID 11802307690.7%

Reaction Steps

A mixture of 1-((2,2-dimethyl-1,3-dioxolan-4-yl)methyl)-4-nitro-1H-pyrazole (2.0 g, 9.5 mmol) and Pd/C (400 mg) in methanol (40 mL) was stirred at RT under H2 overnight. LCMS showed the reaction was completed. The reaction mixture was filtered through a pad of celite, and the filtrate was concentrated to give 1-((2,2-dimethyl-1,3-dioxolan-4-yl)methyl)-1H-pyrazol-4-amine (1.7 g, crude) as a purple oil, which was directly used in the next step without further purification. MS (ES+) C9H15N3O2 requires: 197, found: 198 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09334263B2
Source datasetuspto-grants-2016_05
ORD IDord-8934e8ae74c748f587f696b6570b75f6
Source noteuspto-grants-2016_05