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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1451639Generated: October 29, 2026

Diethyl Malonate → Diethyl (3-methyl-4-nitrobenzyl)malonate

https://huagongshe.com/reaction/1451639

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl MalonateHCID 7761—
Reactant3-Methyl-4-nitrobenzyl bromideHCID 4445978—
SolventSodium ethoxideHCID 2723922—
ProductDiethyl (3-methyl-4-nitrobenzyl)malonateHCID 54253538—

Reaction Steps

To a solution of sodium ethanolate [prepared from 1.35 g Na in ethanol (30 ml)] were added diethyl malonate (9.2 ml) and then dropwise 3-methyl-4-nitrobenzyl bromide (13.4 g). The mixture was stirred 30 minutes at room temperature, then 30 minutes under reflux and then concentrated. The residue is treated with water and hexane, the precipitate filtered and the filtrate extracted with diethyl ether. The organic extract was dried on sodium sulfate and concentrate to give the title compound as an oil (4 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05604237
Source datasetuspto-grants-1997_02
ORD IDord-78659a571efd4bcf9572276fb9e0cf58
Source noteuspto-grants-1997_02