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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1837788Generated: November 2, 2026

Water → HCID 22253670, compound

https://huagongshe.com/reaction/1837788

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAminoisobutyric acidHCID 6119—
ReactantSodium HydroxideHCID 14798—
ReactantPropanoyl bromide, 2-bromo-HCID 79047—
SolventChloroformHCID 6212—
ProductHCID 22253670HCID 2225367070.9%

Reaction Conditions

Temperature-12 °C

Reaction Steps

A stirring mixture of 2-aminoisobutyric acid (52.08 g; 0.51 mol), sodium hydroxide (20.20 g; 0.51 mol), water (200 ml) and chloroform (50 ml) was cooled to −12° C. 2-Bromopropionyl bromide (100 g, 0.46 mol) in chloroform (150 ml) was added to the mixture over 15 minutes. The reaction mixture was then allowed to warm to room temperature after which time the mixture was filtered to isolate the solid that had precipitated. The solid was combined with hot toluene (700 ml) and this mixture was then allowed to cool. The while solid was isolated by filtration and was dried under vacuum to afford 77.60 g (70% yield) of 2-(2-bromopropionylamino)-2-methylpropionic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06784265B2
Source datasetuspto-grants-2004_08
ORD IDord-a2c044d29d13492986f95b6729d97ecd
Source noteuspto-grants-2004_08