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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2120332Generated: October 31, 2026

Hydrogen Bromide → HCID 9920728, compound

https://huagongshe.com/reaction/2120332

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantHCID 9834436HCID 9834436—
SolventAcetic AcidHCID 176—
ProductHCID 9920728HCID 992072896%

Reaction Conditions

Temperature120 °C

Reaction Steps

3-(3-Methyl-4-methoxyphenyl)-3-methylbutyric acid (11.1 g, 0.05 mol), acetic acid (22.3 g), and 48% hydrobromic acid aqueous solution (33.7 g, 0.2 mol) were mixed together, and stirred for 4 hours at 120° C. The mixture was cooled to room temperature, and the thus-obtained reaction solution was extracted with diethyl ether. The organic layer was washed with sodium chloride saturated aqueous solution, and then the solvent was removed by distillation to obtain 3-(3-methyl-4-hydroxyphenyl)-3-methylbutyric acid (10 g, yield: 95%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06689902B2
Source datasetuspto-grants-2004_02
ORD IDord-8d0952dc9de44acfb50e2b62bf9122fd
Source noteuspto-grants-2004_02