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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1189726Generated: November 1, 2026

p-Toluenesulfonic acid → Cyclohexanone, 3,3-dimethyl-

https://huagongshe.com/reaction/1189726

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantDimedoneHCID 31358—
CatalystPalladiumHCID 23938—
SolventIsopropanolHCID 3776—
ProductCyclohexanone, 3,3-dimethyl-HCID 76322—

Reaction Steps

41 g of 5% Pd/C E 101 N/D were placed in a 2 L glass-steel autoclave with glass-liner. 385 g of dimedone (2.75 mol), 663 g (850 mL) of isopropanol and 15.3 g (88 mmol) of p-toluene sulfonic acid were added. The glass-liner was closed and stirring was started with 500 rpm. The autoclave was flushed three times with 5 bara N2. The stirrer was turned off. The autoclave was then pressurized with 5 bara H2 for 10 minutes for pressure check. The pressure was released.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08674143B2
Source datasetuspto-grants-2014_03
ORD IDord-1a166b49ab284d229e7c122aa23caa0c
Source noteuspto-grants-2014_03