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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1670799Generated: October 31, 2026

Nitric Acid → 2-Methyl-1-(4-nitrophenyl)propan-2-amine

https://huagongshe.com/reaction/1670799

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantPhentermine HydrochlorideHCID 70969—
SolventSulfuric AcidHCID 1118—
Product2-Methyl-1-(4-nitrophenyl)propan-2-amineHCID 13897642—

Reaction Conditions

Temperature-10 °C

Reaction Steps

α,α-Dimethylphenethylamine hydrochloride (20 g, 108 mmol) was dissolved in concentrated sulfuric acid (40 mL). The solution was cooled to −10° C. Nitric acid (31 mL, 90%) was added dropwise over a 30 min period while maintaining a reaction tempurature below −5° C. The solution was stirred an addition 45 min then poured over ice and allowed to warm to room temperature over night. The product was collected via filtration (13.7 g). Aqueous sodium hydroxide(1 N) was added to the filtrate and the title compound was isolated as a clear oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07994165B2
Source datasetuspto-grants-2011_08
ORD IDord-4b57bcfffc4942f4aed95ee23966ed55
Source noteuspto-grants-2011_08