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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1751868Generated: October 28, 2026

Hydrochloric Acid → HCID 59678687, compound

https://huagongshe.com/reaction/1751868

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantCalcium CarbonateHCID 10112—
ReactantHCID 19081406HCID 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 numberUS09161997B2
Source datasetuspto-grants-2015_10
ORD IDord-6d8728950fe84b649401791933158501
Source noteuspto-grants-2015_10