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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2415332Generated: October 31, 2026

Sulfuric Acid → HCID 24259182, compound

https://huagongshe.com/reaction/2415332

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantCyanideHCID 5975—
ReactantSodium CyanideHCID 8929—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 22640885HCID 22640885—
SolventAcetic AcidHCID 176—
ProductHCID 24259182HCID 2425918241.9%

Reaction Conditions

Temperature0 °C

Reaction Steps

Powdered sodium cyanide (1.18 g, 24 mmol) was placed in a flask and covered with 5.5 mL of acetic acid. A mixture of sulfuric acid (3 mL) and acetic acid (2.75 mL) was cooled to 0° C. and then added to the cyanide suspension over a period of 3 minutes. The mixture was stirred for 30 minutes at room temperature, followed by the addition of 1,1-diethyl-2-(4-methoxyphenyl)ethanol (4.6 g, 22 mmol). The mixture was stirred overnight then poured into ice and sodium hydroxide. The product was extracted with ether, and the ether layer dried over arhydrous sodium sulfate, and concentrated. The residue was suspended in 20% sodium hydroxide and refluxed overnight under nitrogen. The reaction was cooled, diluted with water, and extracted with ether. The ether layer was separated, washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by reversed-phase HPLC (C-18 using 0.1% HCl/acetonitrile as the elutant) to give 1.91 g of 1,1-diethyl-2-(4-methoxyphenyl)ethylamine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06818660B2
Source datasetuspto-grants-2004_11
ORD IDord-5599481965a1435a855b6d4709218b93
Source noteuspto-grants-2004_11