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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 597106Generated: November 1, 2026

p-Toluenesulfonic acid → 2,6-Dicyclopentyl-3,5-xylenol

https://huagongshe.com/reaction/597106

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant3,5-DimethylphenolHCID 7948—
ReactantCyclopenteneHCID 8882—
Product2,6-Dicyclopentyl-3,5-xylenolHCID 6454047656.4%

Reaction Steps

700 g of cyclopentene are added dropwise to 610 g of 3,5-dimethylphenol and 60 g of p-toluene sulphonic acid at 120° C. The catalyst is removed by washing with sodium hydrogen carbonate solution. The mixture is fractionated. At boiling point 141° C (0.6 mm Hg) 591 g of 3,5-dimethyl-2,6-dicyclopentylphenol are obtained. Melting point: 69° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04013473
Source datasetuspto-grants-1977_03
ORD IDord-fb1d2327e58a429dab3a4d4a36f9123a
Source noteuspto-grants-1977_03