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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2393294Generated: October 31, 2026

Diethylene Glycol → HCID 18975523, compound

https://huagongshe.com/reaction/2393294

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylene GlycolHCID 8117—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 18975515HCID 18975515—
SolventWaterHCID 962—
ProductHCID 18975523HCID 18975523—

Reaction Steps

Diethylene glycol (100 ml), water (60 ml), and 85% potassium hydroxide (32 g, 0.485 mol) were added to β, β-dibromo-5-bromo-2,3-methylenedioxystyrene (42.36 g, 0.11 mol), and the mixture was heated with stirring under reflux for 2 hours. The reaction mixture was poured into ice water and extracted with toluene. The extract was washed with water and dried over anhydrous magnesium sulfate, and then the solvent was evaporated. The residue was recrystallized from ethyl acetate (80 ml) and hexane (300 ml) to give 5-bromo-2,3-methylenedioxyphenylacetic acid (25.35 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05807860
Source datasetuspto-grants-1998_09
ORD IDord-12be7600b92f461fb53810ee93fbbe18
Source noteuspto-grants-1998_09