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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 395224Generated: October 29, 2026

Chloroacetyl chloride → HCID 18172749, compound

https://huagongshe.com/reaction/395224

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroacetyl chlorideHCID 6577—
ReactantCalcium CarbonateHCID 10112—
Reactant1-Naphthalenol, 2-amino-, hydrochloride (1:1)HCID 12999318—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 18172749HCID 1817274960%

Reaction Conditions

Temperature15 °C

Reaction Steps

2 ml of chloroacetyl chloride (25.4 mmol) were added dropwise to a suspension of 5 g of 2-amino-1-naphthol hydrochloride (25.4 mmol) and 5.08 g of calcium carbonate in 200 ml of dioxane, with stirring and under an inert atmosphere. The reaction medium was stirred at 40° C. for 1 hour 30 minutes, cooled to 15° C., filtered on sintered glass and the inorganic salts were rinsed twice with ethyl acetate. The combined organic phases were concentrated until an insoluble product appeared. The concentrate was poured over 250 ml of ice-cold water. The precipitate formed was drained, washed with water and dried under vacuum to a constant weight to give 3.58 g of 2-chloro-N-(1-hydroxynaphthalen-2-yl)acetamide in the form of a beige powder with a yield of 60%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06605124B1
Source datasetuspto-grants-2003_08
ORD IDord-a4523548cc834107a28ffc52c65cc4cd
Source noteuspto-grants-2003_08