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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 925476Generated: October 30, 2026

HCID 59484893, compound → 6-(5-methyloxazol-2-yl)-2H-pyridazin-3-one

https://huagongshe.com/reaction/925476

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 59484893HCID 59484893—
CatalystGold trichlorideHCID 26030—
SolventAcetonitrileHCID 6342—
Product6-(5-methyloxazol-2-yl)-2H-pyridazin-3-oneHCID 59484955—

Reaction Steps

622 mg (2.05 mmol) of gold(III) chloride are added to a solution of 3.69 g (20.5 mmol) of N-prop-2-ynyl-6-oxo-1,6-dihydropyridazine-3-carboxamide in 41 ml of acetonitrile, and the mixture is stirred at room temperature for 3 days. A further 622 mg (2.05 mmol) of gold(III) chloride are added, and the mixture is stirred at room temperature for 7 days. The reaction mixture is evaporated and chromatographed on a silica gel column with dichloromethane/methanol as eluent: 6-(5-methyloxazol-2-yl)-2H-pyridazin-3-one as yellowish crystals; ESI 178.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09284300B2
Source datasetuspto-grants-2016_03
ORD IDord-4204fdd97dd0496fb8244425c4a9950d
Source noteuspto-grants-2016_03