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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1516092Generated: November 1, 2026

Hydrochloric Acid → HCID 59678687, compound

https://huagongshe.com/reaction/1516092

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantCalcium CarbonateHCID 10112—
Reactant2-tert-butyl-4-bromomethyl-5-chloro 3(2H)-pyridazinoneHCID 19081406—
Reactant1,4-Dioxane--water (1/1)HCID 21886435—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 59678687HCID 59678687—

Reaction Steps

2-tert-butyl-4-bromomethyl-5-chloro 3(2H)-pyridazinone (2 g, 7.19 mmol) and calcium carbonate (3.5 gm) are added to a 1:1 mixture of dioxane water (40 ml). The mixture is refluxed for 6 hours after which 30 ml of 3N HCl solution is added to it. The solution is stirred for 10 minutes after which dioxane is removed under reduced pressure. The resulting solution is then extracted with dichloromethane and the dichloromethane layer is washed and dried. The crude obtained after concentration is purified by flash chromatography (ethyl acetate/hexanes:1:2).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08226929B2
Source datasetuspto-grants-2012_07
ORD IDord-6c9345cb107740a3beaa40b449329c24
Source noteuspto-grants-2012_07