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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 931510Generated: November 2, 2026

Potassium Hydroxide → 2-(4-Bromobenzyl)malonic acid

https://huagongshe.com/reaction/931510

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantDimethyl 2-(4-bromobenzyl)malonateHCID 2801290—
SolventEthanolHCID 702—
SolventWaterHCID 962—
Product2-(4-Bromobenzyl)malonic acidHCID 1333021591%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of dimethyl 2-(4-bromobenzyl)malonate (22 g, 73.33 mmol, 1.00 equiv) and potassium hydroxide (12.3 g, 219.64 mmol, 3.00 equiv) in ethanol (140 mL) and water (140 mL) was stirred at 60° C. overnight. The resulting solution was diluted with 300 mL of ice and water then extracted with 1×500 mL of ethyl acetate. The organic layer was washed with 2×150 mL of brine, dried over anhydrous sodium sulfate and concentrated under vacuum to give 18.2 g (91%) of 2-(4-bromobenzyl)malonic acid as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09296732B2
Source datasetuspto-grants-2016_03
ORD IDord-907864db6d684151bc0f989545473af3
Source noteuspto-grants-2016_03