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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1253312Generated: November 2, 2026

Hydrogen Bromide → HCID 20137577, compound

https://huagongshe.com/reaction/1253312

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantPhenolHCID 996—
ReactantNitrobenzeneHCID 7416—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 20137579HCID 20137579—
SolventTolueneHCID 1140—
ProductHCID 20137577HCID 2013757775%

Reaction Steps

2-(1-bromoethyl)-2-(5-bromo-6-methoxy-2-naphthyl)-5,5-dimethyl-1,3-dioxane (9.16 g, 10 mmol) is dissolved in toluene (40 ml) and nitrobenzene (2 g) saturated with HBr at room temperature. Phenol (11.28 g, 120 mmol) is added as solid; the mixture is stirred for 2.5 hours, then is poured in 30 minutes under stirring into a 10% aqueous sodium carbonate solution (150 ml), the organic layer is separated and the aqueous phase is extracted with toluene. The combined organic extracts are washed with water, dried on sodium sulphate and the solvent is removed in vacuo. 2-(1-bromoethyl)-2-(6-methoxy-2-naphthyl)-5,5-dimethyl-1,3-dioxane is obtained (75% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04748256
Source datasetuspto-grants-1988_05
ORD IDord-e5a6a8855d8a44eeb3c59bbaeea10f88
Source noteuspto-grants-1988_05