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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 26273Generated: October 25, 2026

3-Amino-1-phenylpyrazole → 1-phenyl-1H-pyrazol-3-amine

https://huagongshe.com/reaction/26273

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Amino-1-phenylpyrazoleHCID 98736—
CatalystCuprous chlorideHCID 62652—
SolventAcetonitrileHCID 6342—
Product1-phenyl-1H-pyrazol-3-amineHCID 59432050.7%

Reaction Steps

Example 1 was repeated using the following amounts of reagents: 5 g (0.031 mole) of 1-phenyl-3-amino-2-pyrazoline were dissolved in 25 ml of acetonitrile under addition of 0.2 g (0.00201 mole) of CuCl, under an oxygen head. Oxidation lasted about 3 hours. 2.5 g of 1-phenyl-3-aminopyrazole were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04149005
Source datasetuspto-grants-1979_04
ORD IDord-def18bbca1b84c74982ee97ab56dbc22
Source noteuspto-grants-1979_04