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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 984483Generated: October 26, 2026

Water → (7-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol

https://huagongshe.com/reaction/984483

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEpichlorohydrinHCID 7835—
ReactantPotassium CarbonateHCID 11430—
Reactant5-BromosalicylaldehydeHCID 72863—
SolventDimethylformamideHCID 6228—
Product(7-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanolHCID 23396544%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a stirred solution of 5-bromosalicylaldehyde (5.0 g, 24.9 mmol), and epichlorohydrin (5.6 mL, 72.1 mmol) in 20 mL of DMF at 80° C. was added K2CO3 slowly in portions. The resulting mixture was then heated at 90° C. for 3 h. Reaction was then stopped, water was added, extracted with diethyl ether. The organic extracts were washed with water, brine, dried over Na2SO4, concentrated in vacuo. The residue was purified on a SiO2 flash column chromatography eluting with 15-30% EtOAc/hexanes to give 2.82 g (44%) of the title compound as colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06867203B2
Source datasetuspto-grants-2005_03
ORD IDord-1dc99065235e46769bedd783d4257b57
Source noteuspto-grants-2005_03