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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 71684Generated: October 25, 2026

Hydrochloric Acid → 2-Amino-2-(4-bromophenyl)propanoic acid

https://huagongshe.com/reaction/71684

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
Reactant5-(4-Bromophenyl)-5-methylimidazolidine-2,4-dioneHCID 233110—
SolventWaterHCID 962—
Product2-Amino-2-(4-bromophenyl)propanoic acidHCID 315877065%

Reaction Conditions

Temperature145 °C

Reaction Steps

A mixture of 5-(4-bromo-phenyl)-5-methyl-imidazolidine-2,4-dione (4.0 g, 14.9 mmol) and 3 N NaOH (50 mL) was heated in a sealed tube at 145° C. for two days, then diluted with water (100 mL). The solution was adjusted to pH=4 with 6 N HCl carefully and subsequently stirred at room temperature for 2 hours. The precipitate was filtered off, washed with water. The collected white solid was dried under vacuum to give the product (2.5 g, 65%). m/z 243.7, 245.7 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822430B2
Source datasetuspto-grants-2014_09
ORD IDord-33b2069c4dd24affa1dfe469f25f4e85
Source noteuspto-grants-2014_09