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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1039556Generated: November 2, 2026

Hydrochloric Acid → HCID 178424441, compound

https://huagongshe.com/reaction/1039556

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
Reactant2-Cyclopropyl-6-methylphenolHCID 22939951—
ReactantHCID 178516198HCID 178516198—
SolventMethanolHCID 887—
ProductHCID 178424441HCID 17842444126.2%

Reaction Steps

To a mixture of 308 mg (purity: 99.0%; 1.85 mmol) of 4-hydroxy-3,6-dichloropyridazine and 2.72 g (18.1 mmol) of 2-cyclopropyl-6-methylphenol was added 331 mg (5.62 mmol) of 95% potassium hydroxide at room temperature. The resultant mixture was heated to 180° C. while stirring, and stirred at that temperature for 4 hours. Then, the resultant reaction mixture was cooled to room temperature, and a 1 N aqueous hydrochloric acid solution and methanol were added to the reaction mixture to obtain a uniform solution. The obtained solution was quantitatively determined by an HPLC internal standard analysis method, which showed that 134 mg of 6-chloro-3-(2-cyclopropyl-6-methylphenoxy)-4-pyridazinol (yield: 26%) was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08552182B2
Source datasetuspto-grants-2013_10
ORD IDord-fcef495f400e4488a67c281345526170
Source noteuspto-grants-2013_10