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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 505641Generated: October 30, 2026

Ammonium Chloride → HCID 59134292, compound

https://huagongshe.com/reaction/505641

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantLithium perchlorateHCID 23665649—
Reactant(3R*,4R*)-3,4-epoxy-6-methoxy-2,2-dimethyl-7-nitro-3,4-dihydro-2H-1-benzopyranHCID 25196994—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 59134292HCID 59134292—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of (3R*,4R*)-3,4-epoxy-6-methoxy-2,2-dimethyl-7-nitro-3,4-dihydro-2H-1-benzopyran (2.50 g, 9.95 mmol) in 1,4-dioxane (5.0 mL), lithium perchlorate (1.06 g, 9.95 mmol) and 42-(phenylethyl)amine (1.50 mL, 11.9 mmol) were added at room temperature and the mixture was stirred at 80° C. for 1 hour. Upon the completion of the reaction, an aqueous solution of saturated ammonium chloride was added to the reaction solution, and the resulting solution was extracted with ethyl acetate. The organic phase was washed with saturated sodium chloride solution, and then dried over anhydrous sodium sulfate. After distilling off the solvent, the residue was purified by column chromatography (hexane/ethyl acetate=6/4) and the aimed product was obtained as orange amorphous substance (quantitative yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07781483B2
Source datasetuspto-grants-2010_08
ORD IDord-a678bceec3b248b9ba67bf53b9e4e82a
Source noteuspto-grants-2010_08