HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1526895Generated: November 4, 2026
Potassium Hydroxide → 2-(4-Bromobenzyl)malonic acid
https://huagongshe.com/reaction/1526895
Participants
| Role | Name | HCID | Charge |
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| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | Dimethyl 2-(4-bromobenzyl)malonate | HCID 2801290 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | 2-(4-Bromobenzyl)malonic acid | HCID 13330215 | 91% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09085570B2 |
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| Source dataset | uspto-grants-2015_07 |
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| ORD ID | ord-f1a12c078c724ca28aa04eeb3cd7f632 |
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| Source note | uspto-grants-2015_07 |
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