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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 271788Generated: October 25, 2026

Water → 3-(3,7-Dimethyloctyloxy)bromobenzene

https://huagongshe.com/reaction/271788

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant3-BromophenolHCID 11563—
ReactantPotassium HydroxideHCID 14797—
Reactant1-Bromo-3,7-dimethyloctaneHCID 137914—
SolventEthanolHCID 702—
Product3-(3,7-Dimethyloctyloxy)bromobenzeneHCID 1800418192%

Reaction Conditions

Temperature70 °C

Reaction Steps

Under an inert atmosphere, 90 g of 3-bromophenol was dissolved in 600 ml of ethanol. Further, 39 g potassium hydroxide was added to this and the mixture was heated up to 70° C. for dissolution thereof. From a dropping funnel, 126 g of 3,7-dimethylbromooctane was dropped over 15 minutes. After completion of dropping, the mixture was heated to 84° C. and stirred for about 22 hours under heat. After completion of heating, the mixture was left to cool to room temperature. The reaction solution was bisected, 500 ml of water was added to respective portions, then, ethanol was distilled off by an evaporator. The solutions after distilling off of ethanol were combined and trisected, 300 ml of ethyl acetate was added to respective portions to cause liquid separation, and the organic layers were washed with 200 ml of water twice. The organic layers were combined and the solvent was distilled off by an evaporator, then, the residue was dried by heating at 90° C. for 5 hours under vacuum by a rotary pump. About 150 g of 3-(3,7-dimethyloctyloxy)-bromobenzene was obtained as an oily product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07452961B2
Source datasetuspto-grants-2008_11
ORD IDord-6ae149b736fd429585295ac1c36f5e49
Source noteuspto-grants-2008_11