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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1883909Generated: October 31, 2026

Water → HCID 22253670, compound

https://huagongshe.com/reaction/1883909

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAminoisobutyric acidHCID 6119—
ReactantSodium HydroxideHCID 14798—
ReactantPropanoyl bromide, 2-bromo-HCID 79047—
SolventChloroformHCID 6212—
ProductHCID 22253670HCID 2225367070.4%

Reaction Conditions

Temperature-12 °C

Reaction Steps

To a stirring mixture of 2-aminoisobutyric acid (52.08 g; 0.51 mol), sodium hydroxide (20.20 g; 0.51 mol), 200 mL water and 50 mL chloroform cooled to −12° C., was added a solution of 2-bromopropionyl bromide (100 g; 0.463 mol) in 150 mL chloroform. The temperature was maintained between −15 to −12° C. during the addition. The reaction mixture was then allowed to warm to room temperature and stirred for 17 hours. The precipitated solid was filtered, mixed with 700 mL hot toluene, then cooled to room temperature. The solid was filtered and dried under vacuum to afford 77.6 g (70%) of product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06762257B1
Source datasetuspto-grants-2004_07
ORD IDord-8b4fc0916c764a4d9d58e82b6e3554a1
Source noteuspto-grants-2004_07