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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 524315Generated: October 26, 2026

Water → HCID 67365529, compound

https://huagongshe.com/reaction/524315

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiethyl EtherHCID 3283—
ReactantN-bromobutanimideHCID 67184—
Reactant7-Methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuranHCID 13531377—
Solvent2-MethyltetrahydrofuranHCID 7301—
ProductHCID 67365529HCID 67365529—

Reaction Steps

56 g 7-methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran are dissolved in 200 ml 2-methyltetrahydrofuran, 58 g N-bromosuccinimide are added portion wise, while keeping the temperature of the reaction mixture below 50° C., and the reaction is stirred for one hour at RT. Water and diethyl ether are added to the reaction mixture, the phases are separated, the organic phase is washed with 1 M aqueous sodium carbonate solution, dried over MgSO4, and the solvent is removed under reduced pressure. The resulting crude product is purified by distillation under vacuum yielding 5-bromo-7-methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09340522B2
Source datasetuspto-grants-2016_05
ORD IDord-aa611b839bdc45e890e15303cb436b33
Source noteuspto-grants-2016_05