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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 62894Generated: October 28, 2026

Sulfuric Acid → HCID 18757590, compound

https://huagongshe.com/reaction/62894

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantEthyl 4-chloroacetoacetateHCID 69484—
Reactant2,4-DifluororesorcinolHCID 10844515—
ProductHCID 18757590HCID 1875759024%

Reaction Steps

Sulfuric acid (2 mL) in a flask was cooled to 0° C. After ethyl 4-chloroacetoacetate (0.62 g, 3.8 mmol) was added thereto, 2,4-difluororesorcinol (0.5 g, 3.4 mmol) was added dropwise thereto. The mixture was stirred at room temperature for 2 hours, and the reactant was placed in ice water. The precipitate was filtered, washed with water, and dried by nitrogen gas to obtain the title compound (0.2 g, 24%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09447044B2
Source datasetuspto-grants-2016_09
ORD IDord-a280cbbb94b44d6c87a7459224c1758d
Source noteuspto-grants-2016_09