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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Epichlorohydrin | HCID 7835 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 5-Bromosalicylaldehyde | HCID 72863 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | (7-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol | HCID 233965 | 44% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06867203B2 |
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| Source dataset | uspto-grants-2005_03 |
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| ORD ID | ord-1dc99065235e46769bedd783d4257b57 |
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| Source note | uspto-grants-2005_03 |
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