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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1631883Generated: November 2, 2026

2-(4-bromo-2,6-dimethyl-phenyl)-4-[1-cyclohexyl-meth-(E)-ylidene]-cyclopentane-1,3-dione → 4-Cyclohexylmethyl-2-(2,6-dimethyl-phenyl)-cyclopentane-1,3-dione

https://huagongshe.com/reaction/1631883

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(4-bromo-2,6-dimethyl-phenyl)-4-[1-cyclohexyl-meth-(E)-ylidene]-cyclopentane-1,3-dioneHCID 66868090—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product4-Cyclohexylmethyl-2-(2,6-dimethyl-phenyl)-cyclopentane-1,3-dioneHCID 66868376—

Reaction Steps

To a solution of 2-(4-bromo-2,6-dimethyl-phenyl)-4-[1-cyclohexyl-meth-(E)-ylidene]-cyclopentane-1,3-dione (250 mg, 0.844 mmol) in methanol (25 ml) was added 10% palladium on carbon (50 mg, 20%) and stirred at room temperature under hydrogen balloon pressure for 7-8 hours. The reaction mixture was filtered through celite bed, concentrated under high vacuum. Compounds were separated by auto prep purification system to give 4-cyclohexylmethyl-2-(2,6-dimethyl-phenyl)-cyclopentane-1,3-dione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08791303B2
Source datasetuspto-grants-2014_07
ORD IDord-2444549cb1984cafb2be0d36b9418749
Source noteuspto-grants-2014_07