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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1350878Generated: October 31, 2026

Ethyl bromoacetate → Ethyl [(4,4-dimethyl-3,4-dihydro-2H-chromen-7-yl)oxy]acetate

https://huagongshe.com/reaction/1350878

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromoacetateHCID 7748—
ReactantPotassium CarbonateHCID 11430—
Reactant4,4-dimethyl-3,4-dihydro-2H-1-benzopyran-7-olHCID 15729796—
ProductEthyl [(4,4-dimethyl-3,4-dihydro-2H-chromen-7-yl)oxy]acetateHCID 5864042499.3%

Reaction Steps

4,4-Dimethylchroman-7-ol (1.4 g, 8.0 mmol), potassium carbonate (3.3 g, 24.0 mmol) and ethyl bromoacetate (1.0 mL, 9.2 mmol) were treated in the same procedure described in Example 33(d). The crude residue was applied to a silica gel chromatography column and eluted with a volume mixture of hexane and ethyl acetate (19/1 to 4/1) to furnish 2.1 g (98% yield) of the title compound as a colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07214824B2
Source datasetuspto-grants-2007_05
ORD IDord-2d9d3be759c444f2850e18cba3ce4b3c
Source noteuspto-grants-2007_05